July 29, 2012 by desertrose
Earthquakes / Tsunamis
RSOE EDIS
………………………………………..
Magnitude 6.6 quake hits off Papua New Guinea coast: USGS
(Reuters) – A magnitude 6.6 quake struck off the coast of Papua New
Guinea early on Sunday local time, the U.S. Geological Survey said.
The strong quake was centered 81 miles east-southeast of Rabaul, New Britain, at a depth of 43.5 miles, the USGS said.
The quake was not expected to generate a tsunami, according to the Pacific Tsunami Warning Center.
(Editing by Peter Cooney)
Pacific Ocean Region | ||||||
Date/Time (UTC) | Message | Location | Magnitude | Depth | Status | Details |
28.07.2012 20:11 PM | Tsunami Information Bulletin | New Ireland Region P.n.g. | 6.6 | 71 km |
Original Bulletin |
Tsunami Information Bulletin in New Ireland Region P.n.g., Pacific Ocean |
|
|
**********************************************************************************************************
Volcanic Activity
Geothermal activity seen in New Zealand
by Staff Writers
Rotorua, New Zealand (UPI)
disclaimer: image is for illustration purposes only |
A long forgotten geothermal spectacle on New Zealand’s North Island
could be coming back to life after more than 40 years, scientists said.
In the first half of the 20th century the Waikite Geyser in the Whakarewarewa geothermal area near Rotorua was known for its spectacular hot water eruptions reaching up to 65 feet but had not produced a significant eruption since 1969, the Institute of Geological and Nuclear Sciences said.
However, in the past year scientists have increasingly noticed geothermal waters coming into the throat of the geyser, a major tourist attraction, the official Chinese news agency Xinhua reported.
Geothermal features like geysers can be naturally variable and stay dormant for years, GNS geothermal scientist Ed Mroczek said in a statement.
“This makes it difficult to distinguish what is part of a natural cycle and what is disruption caused by human activity,” he said.
Scientists say they believe a sharp increase in the number of bores drilled in Rotorua since the 1950s by homeowners and businesses seeking cheap energy caused underground pressures to drop.
But new research at Whakarewarewa suggests pressure has increased and water from deeper in the earth was being pushed toward the surface, scientists said.
“We have no way of knowing if Waikite will recover to its former magnificence, but the signs we are seeing are very encouraging,” Mroczek said.
In the first half of the 20th century the Waikite Geyser in the Whakarewarewa geothermal area near Rotorua was known for its spectacular hot water eruptions reaching up to 65 feet but had not produced a significant eruption since 1969, the Institute of Geological and Nuclear Sciences said.
However, in the past year scientists have increasingly noticed geothermal waters coming into the throat of the geyser, a major tourist attraction, the official Chinese news agency Xinhua reported.
Geothermal features like geysers can be naturally variable and stay dormant for years, GNS geothermal scientist Ed Mroczek said in a statement.
“This makes it difficult to distinguish what is part of a natural cycle and what is disruption caused by human activity,” he said.
Scientists say they believe a sharp increase in the number of bores drilled in Rotorua since the 1950s by homeowners and businesses seeking cheap energy caused underground pressures to drop.
But new research at Whakarewarewa suggests pressure has increased and water from deeper in the earth was being pushed toward the surface, scientists said.
“We have no way of knowing if Waikite will recover to its former magnificence, but the signs we are seeing are very encouraging,” Mroczek said.
Related Links
***********************************************************************************************************
Extreme Temperatures/ Weather / Drought
Excessive Heat Warning
TULSA OK
Heat Advisory
SPRINGFIELD MO FORT WORTH TX KANSAS CITY/PLEASANT HILL MO TULSA OK TOPEKA KS ST LOUIS MO LITTLE ROCK AR WICHITA KS NORMAN OK
28.07.2012 | Forest / Wild Fire | Russia [Asia] | Siberia, [Krasnoyarsk Krai, Tomsk Region, Tuva, Khakassia and Irkutsk Region] |
Forest / Wild Fire in Russia [Asia] on Saturday, 28 July, 2012 at 12:07 (12:07 PM) UTC.
Description | |
Firefighters in Russia’s Siberia had extinguished 45 forest fires covering 522 hectares of forest in the past 24 hours, but 131 wildfires were still burning on the area of almost 15,000 hectares, the regional forestry department said Friday. A total of 29 wildfires covering an area of more than 5,000 hectares were localized, and 14,948 hectares of forest continued to burn in the Krasnoyarsk Krai, Tomsk Region, Tuva, Khakassia and Irkutsk Region. Some 3,000 people, 412 units of fire-fighting equipment and 24 aircrafts have been mobilized to fight the blazes, which are believed to be caused by hot and dry weather in the region where the temperature reaches 35 degrees. Reports said the wildfires posed no threat to populated areas or industry. |
US ‘extreme drought’ zones triple in size July 27, 2012
by Andrew Gully
Almost two thirds of the continental US are now suffering drought
conditions Enlarge A field of dead corn sits next to an ethanol plant
July 25, in Palestine, Illinois. The drought in America’s breadbasket is
intensifying at an unprecedented rate, experts warned, driving concern
food prices could soar if crops in the world’s key producer are
decimated. The drought in America’s breadbasket is intensifying at an
unprecedented rate, experts warned, driving concern food prices could
soar if crops in the world’s key producer are decimated. Ads by Google
EHR Software Demo – Watch the EHR Demo Online Now Meaningful Use with
Ease of Use! – AdvancedMD.com/Elec-Health-Record The US Drought Monitor
reported a nearly threefold increase in areas of extreme drought over
the past week in the nine Midwestern states where three quarters of the
country’s corn and soybean crops are produced. “That expansion of D3 or
extreme conditions intensified quite rapidly and we went from 11.9
percent to 28.9 percent in just one week,” Brian Fuchs, a climatologist
and Drought Monitor author, told AFP. “For myself, studying drought,
that’s rapid. We’ve seen a lot of things developing with this drought
that were unprecedented, especially the speed.” Almost two thirds of the
continental United States are now suffering drought conditions, the
largest area recorded since the Drought Monitor project started in 1999.
“If you are following the grain prices here in the US, they are
reflecting the anticipated shortages with a price increase,” Fuchs said.
In some rural areas, municipal water suppliers are talking about
mandatory restrictions Enlarge A farmer moves an irrigation system into a
cornfield near Whiteland, Indiana. The drought in America’s breadbasket
is intensifying at an unprecedented rate, experts warned, driving
concern food prices could soar if crops in the world’s key producer are
decimated. “In turn, you’re going to see those price increases trickle
into the other areas that use those grain crops: cattle feed, ethanol
production and then food stuffs.” In some rural areas, municipal water
suppliers are talking about mandatory restrictions because they have
seen such a dramatic drop in the water table that they fear being unable
to fulfill deliveries to customers, Fuchs said. “Things have really
developed over the last two months and conditions have worsened just
that quick and that is really unprecedented,” he added. “Definitely
exports are going to suffer because there is going to be less available
and the markets are already reflecting that. Ads by Google Dating Sites
for Seniors – Over 50 and looking for a soulmate? Try here. Free
membership! – MatureSinglesClick.com “It’s anticipated that this drought
is going to persist through the next couple of months at least and
conditions are not overly favorable to see any widespread improvement.”
President Barack Obama’s administration has opened up protected US land
to help farmers and ranchers hit by the drought and encouraged crop
insurance companies to forgo charging interest for a month. Officials
have said the drought will drive up food prices since 78 percent of US
corn and 11 percent of soybean crops have been hit and the United States
is the world’s biggest producer of those crops. The current drought has
been compared to a 1988 crisis that cut production by 20 percent and
cost the economy tens of billions of dollars. Officials have said the
drought will drive up food prices Enlarge A farmer talks with an
official from the US Department of Agriculture while veiwing drought
damage to his farm, near Goreville, Illinois. The drought in America’s
breadbasket is intensifying at an unprecedented rate, experts warned,
driving concern food prices could soar if crops in the world’s key
producer are decimated. The US Department of Agriculture issued retail
price forecasts Wednesday for 2013 and they already showed an impact
from the drought, with consumers expected to pay between three and four
percent more for their groceries. “The 2013 numbers reflect
higher-than-average inflation which is partly a function of the drought
and the higher crop prices,” said Ephraim Leibtag of the USDA’s Economic
Research Service. “The drought effects are starting now at the farm and
agricultural level. “Those things take two to 12 months to work through
the system. So you’ll see some effects as early as the fall (autumn) in
terms of the grocery stores and restaurants, certainly later in the
year and into 2013.” The full impact of the drought on food prices won’t
be known for months. “It’s too early to tell as we don’t know how much
of the crop is going to be lost and how much higher corn and soybean
prices will go,” Leibtag said. “We are not forecasting major impacts on
retail food at this point. If the drought gets worse or corn and soybean
prices rise even more, that would start to have a bigger impact.” Even
before the last week, farmers were telling AFP they may have to cut
their losses — chopping down fields of half-mature, earless corn to feed
the stalks to cattle. Weather forecasters predicted no respite. (c)
2012 AFP
***********************************************************************************************************
Storms / Flooding
Tropical Storm data
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Damrewy (11W) | Pacific Ocean | 29.07.2012 | 29.07.2012 | Tropical Depression | 270 ° | 56 km/h | 74 km/h | 1.83 m | JTWC |
Tropical Storm data
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
………………………………………..
Today | Tornado | Philippines | Province of Bohol, Jagna |
Tornado in Philippines on Sunday, 29 July, 2012 at 04:29 (04:29 AM) UTC.
Description | |
At least 85 houses were destroyed in the wake of a tornado that struck four barangays in Jagna, Bohol at 11 a.m. last Friday. The tornado struck barangays Can-upao, Bunga Mar, Cantagay and Ipil while a heavy downpour was taking place, according to the Jagna Municipal Disaster Risk Reduction and Management Council. “The residents said they felt their houses shake. In one house, the kitchen got pulled out and landed in the sala. The residents got out of their homes and ran away,” said council staffer Vicente Orias. Orias said some residents described seeing a black funnel of air in the sky which later spun towards the ground. Several houses made of nipa were uprooted, Orias said. The roofs of some houses, including those made of galvanized aluminum sheets, were blown away. “It looked like the roofs were cut open by the wind,” Orias said. Pag-asa Mactan weather specialist Boy Artiaga said the tornado occurred due to the presence of the southwest monsoon winds and the low pressure area in the eastern part of the Visayas. Barangay Can-upao was hardest hit with 43 destroyed or damaged houses, followed by Bunga Mar with 39 houses, two in Cantagay and one in Ipil. No one was reported injured, Orias said. The affected families transferred to houses of their relatives or neighbors. Bohol provincial police said property damage was estimated at P800,000. The tornado also damaged 13 pumpboats worth P300,000, a sari-sari store and fruit-bearing trees worth P200,000. Bohol Gov. Edgar Chatto, Vice Gov. Concepcion Lim and social welfare personnel went to the affected areas to distribute rice, noodles, and canned goods. |
Flash Flood Watch
ALBANY NY TAUNTON MA
Flood Advisory
NORTH PLATTE NE
- From: AFP
FLOODING across impoverished North Korea this month has
killed 88 people, left tens of thousands homeless and devastated swathes
of farmland.
A week of floods “caused by typhoon and downpour … claimed big human
and material losses”, Pyongyang’s official news agency said. The new
death toll was a dramatic increase from the figure of eight reported
Wednesday.
A total of 134 people were injured and almost 63,000 people were left
homeless by the floods, which started on July 18, the Korean Central
News Agency (KCNA) reported, with thousands of houses damaged or
destroyed.
The biggest loss of human life was in two counties of South Pyongan
province, which were hit by torrential rains on Monday and Tuesday, it
said.
More than 30,000 hectares of land for growing crops was “washed away
and buried” or “submerged”, KCNA said, a potential blow for a state that
is beset by persistent severe food shortages.
With rugged terrain and outmoded agricultural practices, the country
faces serious difficulties in feeding its 24 million people. Hundreds of
thousands died during a famine in the mid to late-1990s.
UN agencies, after a visit to the North, estimated last November that three million people would need food aid in 2012.
Some 300 public buildings and 60 factories were damaged in the floods, as well as large stretches of road, KCNA said.
State media reported earlier this week that 60 flood victims were
rescued thanks to a helicopter urgently sent by leader Kim Jong-Un.
The victims, including children and women, were trapped on Monday on a
hillock in the northwest of the country after a river flooded due to
heavy rain, the official news agency said.
“Isolated incommunicado, they did not find a way out, in panic at rising water. At that time a helicopter appeared,” it said.
“After receiving an urgent report, the dear respected Kim Jong-Un
issued an emergency sortie order to a unit of the Air Force of the
Korean People’s Army.”
After decades of deforestation, the impoverished North Korea is particularly vulnerable to flooding.
Dozens were killed or injured by a storm and torrential rain in the
North in June and July last year. Thousands were also made homeless and
large areas of farmland were flooded.
The United States reached a deal on February 29 this year to offer
North Korea badly needed food aid in return for a freeze on nuclear and
missile tests.
But it rescinded the plan after the North’s failed rocket launch in
April, seen by the United States and its allies as an attempted
ballistic missile test.
The North has been developing nuclear weapons for decades and staged two nuclear tests in 2006 and 2009.
*************************************************************************************************************
Epidemic Hazards / Diseases
Ebola outbreak in Uganda kills 13: official
By Elias Biryabarema
KAMPALA
KAMPALA
(Reuters) – An outbreak of the deadly Ebola virus has killed 13
people in Uganda and efforts are under way to contain the hemorrhagic
fever, the World Health Organisation (WHO) said on Saturday.
There is no treatment and no vaccine against Ebola, which is
transmitted by close personal contact and, depending on the strain,
kills up to 90 percent of those who contract the virus.
Joaquim Saweka, WHO’s representative in Uganda, said that although
suspected Ebola infections emerged in early July in Kibale district,
about 170 km (100 miles) west of the capital Kampala, the outbreak was
not confirmed until Friday.
“There are a total of 20 people suspected to have contracted Ebola and 13 of them have died,” Saweka said.
“A team of experts from the government, WHO and CDC (U.S. Centers for
Disease Control) are in the field and following up on all suspected
cases and those who got into contact with patients.”
Saweka said the origin of the outbreak had not yet been confirmed,
but 18 of the 20 cases are understood to be linked to one family.
Kibale is near the Democratic Republic of Congo (DRC) where the virus emerged in 1976, taking its name from the Ebola River.
The symptoms include sudden onset of fever, intense weakness, muscle
pain, headache and sore throat, followed by vomiting, diarrhea, rashes,
impaired kidney and liver function and both internal and external
bleeding.
Ebola was last reported in Uganda in May last year when it killed a
12-year-old girl. The country’s most devastating outbreak was in 2000
when 425 people were infected, more than half of whom died.
(Editing by George Obulutsa; Editing by Michael Roddy)
28.07.2012 | Epidemic Hazard | Uganda | Western Uganda, [Kibaale District] |
Epidemic Hazard in Uganda on Thursday, 26 July, 2012 at 15:57 (03:57 PM) UTC.
Description | |
Sixteen people are reported dead in Uganda from a mystery illness. The Uganda publication UG Pulse reports that a strange illness, cause unknown, is spreading in the Kibaale district in western Uganda. The District Health Officer, Dr. Dan Kyamanwa, stated that 11 of the deaths were from the same family in the Nyamarunda Sub County. A twelfth death was a health officer. There are also reports of the illness appearing in the clinical officer who treated the family from Nyamarunda and a driver who transported the deceased. Kyamanwa says that symptoms of the illness include high fever, vomiting, diarrhea and systems failure. Death occurs within four to seven days.The Ugandan government is reportedly sending a team of experts to investigate the outbreak. | |
Biohazard name: | Unidentified fatal disease |
Biohazard level: | 4/4 Hazardous |
Biohazard desc.: | Viruses and bacteria that cause severe to fatal disease in humans, and for which vaccines or other treatments are not available, such as Bolivian and Argentine hemorrhagic fevers, H5N1(bird flu), Dengue hemorrhagic fever, Marburg virus, Ebola virus, hantaviruses, Lassa fever, Crimean-Congo hemorrhagic fever, and other hemorrhagic or unidentified diseases. When dealing with biological hazards at this level the use of a Hazmat suit and a self-contained oxygen supply is mandatory. The entrance and exit of a Level Four biolab will contain multiple showers, a vacuum room, an ultraviolet light room, autonomous detection system, and other safety precautions designed to destroy all traces of the biohazard. Multiple airlocks are employed and are electronically secured to prevent both doors opening at the same time. All air and water service going to and coming from a Biosafety Level 4 (P4) lab will undergo similar decontamination procedures to eliminate the possibility of an accidental release. |
Symptoms: | |
Status: | suspected |
************************************************************************************************************
Solar Activity
2MIN News July 28, 2012
Published on Jul 28, 2012 by Suspicious0bservers
EARTHQUAKE WATCH: http://youtu.be/SMiHsOYwdCs
TODAY’S LINKS
REPEAT LINKS
Spaceweather: http://spaceweather.com/ [Look on the left at the X-ray Flux and Solar Wind Speed/Density]
HAARP: http://www.haarp.alaska.edu/haarp/data.html [Click online data, and have a little fun]
SDO: http://sdo.gsfc.nasa.gov/data/ [Place to find Solar Images and Videos - as seen from earth]
SOHO: http://sohodata.nascom.nasa.gov/cgi-bin/soho_movie_theater [SOHO; Lasco and EIT - as seen from earth]
Stereo: http://stereo.gsfc.nasa.gov/cgi-bin/images [Stereo; Cor, EUVI, HI - as seen from the side]
SunAEON:http://www.sunaeon.com/#/solarsystem/ [Just click it... trust me]
SOLARIMG: http://solarimg.org/artis/ [All purpose data viewing site]
iSWA: http://iswa.gsfc.nasa.gov/iswa/iSWA.html [Free Application; for advanced sun watchers]
NOAA ENLIL SPIRAL: http://www.swpc.noaa.gov/wsa-enlil/cme-based/ [CME Evolution]
NOAA Bouys: http://www.ndbc.noaa.gov/
RSOE: http://hisz.rsoe.hu/alertmap/index2.php [That cool alert map I use]
JAPAN Radiation Map: http://jciv.iidj.net/map/
Gamma Ray Bursts: http://grb.sonoma.edu/ [Really? You can't figure out what this one is for?]
BARTOL Cosmic Rays: http://neutronm.bartol.udel.edu//spaceweather/welcome.html [Top left box, look for BIG blue circles]
TORCON: http://www.weather.com/news/tornado-torcon-index [Tornado Forecast for the day]
GOES Weather: http://rsd.gsfc.nasa.gov/goes/ [Clouds over America]
INTELLICAST: http://www.intellicast.com/ [Weather site used by many youtubers]
PHYSORG: http://phys.org/ [GREAT News Site!]
************************************************************************************************************
Space
Earth approaching objects (objects that are known in the next 30 days) |
|||||||||
Object Name | Apporach Date | Left | AU Distance | LD Distance | Estimated Diameter* | Relative Velocity | |||
217013 (2001 AA50) | 31st July 2012 | 2 day(s) | 0.1355 | 52.7 | 580 m – 1.3 km | 22.15 km/s | 79740 km/h | ||
(2012 DS30) | 02nd August 2012 | 4 day(s) | 0.1224 | 47.6 | 18 m – 39 m | 5.39 km/s | 19404 km/h | ||
(2000 RN77) | 03rd August 2012 | 5 day(s) | 0.1955 | 76.1 | 410 m – 920 m | 9.87 km/s | 35532 km/h | ||
(2004 SB56) | 04th August 2012 | 6 day(s) | 0.1393 | 54.2 | 380 m – 840 m | 13.72 km/s | 49392 km/h | ||
(2000 SD8) | 04th August 2012 | 6 day(s) | 0.1675 | 65.2 | 180 m – 400 m | 5.82 km/s | 20952 km/h | ||
(2006 EC) | 06th August 2012 | 8 day(s) | 0.0932 | 36.3 | 13 m – 28 m | 6.13 km/s | 22068 km/h | ||
(2006 MV1) | 07th August 2012 | 9 day(s) | 0.0612 | 23.8 | 12 m – 28 m | 4.79 km/s | 17244 km/h | ||
(2005 RK3) | 08th August 2012 | 10 day(s) | 0.1843 | 71.7 | 52 m – 120 m | 8.27 km/s | 29772 km/h | ||
(2009 BW2) | 09th August 2012 | 11 day(s) | 0.0337 | 13.1 | 25 m – 56 m | 5.27 km/s | 18972 km/h | ||
277475 (2005 WK4) | 09th August 2012 | 11 day(s) | 0.1283 | 49.9 | 260 m – 580 m | 6.18 km/s | 22248 km/h | ||
(2004 SC56) | 09th August 2012 | 11 day(s) | 0.0811 | 31.6 | 74 m – 170 m | 10.57 km/s | 38052 km/h | ||
(2008 AF4) | 10th August 2012 | 12 day(s) | 0.1936 | 75.3 | 310 m – 690 m | 16.05 km/s | 57780 km/h | ||
37655 Illapa | 12th August 2012 | 14 day(s) | 0.0951 | 37.0 | 770 m – 1.7 km | 28.73 km/s | 103428 km/h | ||
(2012 HS15) | 14th August 2012 | 16 day(s) | 0.1803 | 70.2 | 220 m – 490 m | 11.54 km/s | 41544 km/h | ||
4581 Asclepius | 16th August 2012 | 18 day(s) | 0.1079 | 42.0 | 220 m – 490 m | 13.48 km/s | 48528 km/h | ||
(2008 TC4) | 18th August 2012 | 20 day(s) | 0.1937 | 75.4 | 140 m – 300 m | 17.34 km/s | 62424 km/h | ||
(2006 CV) | 20th August 2012 | 22 day(s) | 0.1744 | 67.9 | 290 m – 640 m | 13.24 km/s | 47664 km/h | ||
(2012 EC) | 20th August 2012 | 22 day(s) | 0.0815 | 31.7 | 56 m – 130 m | 5.57 km/s | 20052 km/h | ||
162421 (2000 ET70) | 21st August 2012 | 23 day(s) | 0.1503 | 58.5 | 640 m – 1.4 km | 12.92 km/s | 46512 km/h | ||
(2007 WU3) | 21st August 2012 | 23 day(s) | 0.1954 | 76.0 | 56 m – 120 m | 5.25 km/s | 18900 km/h | ||
(2012 BB14) | 24th August 2012 | 26 day(s) | 0.1234 | 48.0 | 27 m – 60 m | 2.58 km/s | 9288 km/h | ||
|
Planet-forming dust disc surrounding distant star disappears
An artist’s conception of the now-vanished dust disc surrounding the star TYC 8241 2652 1. (Gemini Observatory/AURA artwork by Lynette Cook / July 5, 2012) |
By Thomas H. Maugh II Los Angeles TimesJuly 5, 2012, 8:46 a.m.
A disc of planet-forming dust around a distant star has disappeared
unexpectedly, leaving astronomers scratching their heads and questioning
current theories of how planets are formed. “It’s like the classic
magician’s trick: Now you see it, now you don’t,” said astronomer Carl
Melis of UC San Diego, who led the team that discovered the phenomenon.
“Only in this case, we’re talking about enough dust to fill an inner
solar system and it is really gone.” The team has proposed several
possible explanations for the disappearance, but “none are really
compelling,” Melis said.
The star in question is a called TYC 8241 2652. It is a younger version of our own sun, only about 10 million years old (our own solar system is 4.5 billion years old), and lies 450 million light-years away in the constellation Centaurus. It was first seen in 1983 by NASA’s Infrared Astronomical Satellite (IRAS). The dust disc heats up from absorbed light from its star and re-emits the energy in the infrared, giving the system a characteristic appearance. IRAS has discovered hundreds of such stars.
The team reported Thursday in the journal Nature that they reexamined the star in 2008 using the Gemini South Observatory in Chile and found the same infrared signature observed in 1983. But when they looked at it again in 2009 with NASA’s orbiting Wide-field Infrared Survey Explorer, about two-thirds of the dust had disappeared. Observations with other telescopes the following year showed that virtually all of the dust was gone. “It’s as if you took a conventional picture of the planet Saturn today and then came back two years later and found that its rings had disappeared,” said co-author Ben Zuckerman of UCLA.
Researchers have offered at least three potential mechanisms for the disappearance. One might be runaway planetary accretion. It is generally believed that the condensation of such dust particle around a star into a planet occurs over long periods — hundreds of thousands of years. In this case, it could have been accelerated by some unknown force, occurring over just a few years. The star is too far away to observe any potential planet, however.
A second possibility is that, for some reason, the dust has all fallen into the star itself, perhaps as a result of the star’s gravity or some external force. The third explanation might be that the dust particles are so small that the constant stream of light from the star has ejected them all into space, where they have cooled off.
“Many astronomers feel uncomfortable with the suggested explanations for the disappearance of the dust because each of them has nontraditional implications,” said co-author Inseok Song of the University of Georgia. “But my hope is that this line of research can bring us closer to a true understanding of how planets form.”
LATimesScience@gmail.com
Twitter/@LATMaugh
*************************************************************************************************************The star in question is a called TYC 8241 2652. It is a younger version of our own sun, only about 10 million years old (our own solar system is 4.5 billion years old), and lies 450 million light-years away in the constellation Centaurus. It was first seen in 1983 by NASA’s Infrared Astronomical Satellite (IRAS). The dust disc heats up from absorbed light from its star and re-emits the energy in the infrared, giving the system a characteristic appearance. IRAS has discovered hundreds of such stars.
The team reported Thursday in the journal Nature that they reexamined the star in 2008 using the Gemini South Observatory in Chile and found the same infrared signature observed in 1983. But when they looked at it again in 2009 with NASA’s orbiting Wide-field Infrared Survey Explorer, about two-thirds of the dust had disappeared. Observations with other telescopes the following year showed that virtually all of the dust was gone. “It’s as if you took a conventional picture of the planet Saturn today and then came back two years later and found that its rings had disappeared,” said co-author Ben Zuckerman of UCLA.
Researchers have offered at least three potential mechanisms for the disappearance. One might be runaway planetary accretion. It is generally believed that the condensation of such dust particle around a star into a planet occurs over long periods — hundreds of thousands of years. In this case, it could have been accelerated by some unknown force, occurring over just a few years. The star is too far away to observe any potential planet, however.
A second possibility is that, for some reason, the dust has all fallen into the star itself, perhaps as a result of the star’s gravity or some external force. The third explanation might be that the dust particles are so small that the constant stream of light from the star has ejected them all into space, where they have cooled off.
“Many astronomers feel uncomfortable with the suggested explanations for the disappearance of the dust because each of them has nontraditional implications,” said co-author Inseok Song of the University of Georgia. “But my hope is that this line of research can bring us closer to a true understanding of how planets form.”
LATimesScience@gmail.com
Twitter/@LATMaugh
Biological Hazards / Wildlife
Dogs Die After Playing In Tainted Reservoir
Toxic Algae Found In Salamonie Reservoir, Health Officials Say
ANDREWS, Ind. — Indiana health officials are warning residents that toxic algae found this summer in several lakes poses a health threat to people and animals.The warning comes after the death of two dogs playing in a northern Indiana reservoir tainted by the toxic algae.The Board of Animal Health said toxins released by blue-green algae are likely what caused two dogs belonging to Larry and Marge Young to die last week after the dogs played in Salamonie Reservoir.
**************************************************************************************************************
Articles of Interest
Japanese women fall behind Hong Kong in longevity
The March 2011 earthquake and tsunami contributed to pushing life expectancy figures down
Japanese women have fallen behind Hong Kong in global life expectancy rankings for the first time in 25 years.
This was partly due to the devastating earthquake and tsunami that
hit the country in March 2011, said an annual report by Japan’s health
ministry.The expected lifespan for Japanese women dropped from 86.30 years in 2010 to to 85.90 years in 2011.
The official life expectancy for women in Hong Kong last year was 86.70 years.
Japan has topped the women’s rankings for a quarter of a century, with longevity attributed in part to a healthy traditional diet.
The magnitude 9.0 earthquake and tsunami that left more than 20,000 dead or missing pushed the life expectancy down.
However the report noted that even without the disaster Japanese women would still have dropped behind Hong Kong in the statistics.
Other factors contributing to the dip included a rise in the number of suicides among Japanese women, disease and other natural death causes, the report said.
The life expectancy for men in Japan also declined from 79.55 in 2010 to 79.44 last year.
The men dropped from fourth place in 2010 to eighth last year in the global life expectancy ranking, said Japan’s Kyodo news agency.
*************************************************************************************************************
[In accordance with Title 17 U.S.C. Section 107, this material is distributed without profit, for research and/or educational purposes. This constitutes 'FAIR USE' of any such copyrighted material.]
No comments:
Post a Comment
Hello and thank you for visiting my blog. Please share your thoughts and leave a comment :)