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Topic: 2M1207b


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In the News (Fri 22 Jun 18)

  
  2M1207b - Wikipedia, the free encyclopedia
2M1207b is an extrasolar planet orbiting the brown dwarf 2M1207, a star in the constellation Hydra approximately 200 light years from Earth.
The projected distance between 2M1207b and its primary is around 41 AU (similar to the mean distance between Pluto and the Sun), giving it an estimated orbital period of around 1700 years.
2M1207b is about 100 times fainter in the sky than its companion star, and was first spotted as a "faint reddish speck of light" in 2004, and was inconclusively imaged by the Hubble Space Telescope later that year.
en.wikipedia.org /wiki/2M1207b   (696 words)

  
 2M1207 - Wikipedia, the free encyclopedia
2M1207, 2M1207A or 2MASSWJ 1207334-393254 is a brown dwarf star located at in the constellation Hydra; a companion object, 2M1207b, is believed to be one of the first extrasolar planets to be directly imaged, and is the first exoplanet to be discovered in orbit of a brown dwarf.
The new distance (revised downwards from 70 parsecs) results in a fainter luminosity for 2M1207A, and its mass was revised downwards from an original value of 25 Jupiter masses.
2M1207b is a planetary mass companion to 2M1207 detected in 2004 by imaging.
en.wikipedia.org /wiki/2M1207   (277 words)

  
 2M1207b: Facts and details from Encyclopedia Topic   (Site not responding. Last check: 2007-10-13)
An extrasolar planet (or exoplanet) is a planet which orbits a star other than the sun, and therefore belongs to a planetary system other...
2m1207, 2m1207a or 2masswj 1207334-393254 is a brown dwarf star located at in the constellation hydra; a companion object, 2m1207b,...
An astronomer or astrophysicist is a scientist whose area of research is astronomy or astrophysics....
www.absoluteastronomy.com /encyclopedia/2/2m/2m1207b1.htm   (1407 words)

  
 2M1207b: Encyclopedia topic   (Site not responding. Last check: 2007-10-13)
2M1207b is an extrasolar planet (extrasolar planet: an extrasolar planet (or exoplanet) is a planet which orbits a star other...
The planet is not a likely candidate to support life (life: The period during which something is functional (as between birth and death)), neither on its surface nor on any satellite (satellite: Man-made equipment that orbits around the earth or the moon) s.
2M1207b is about 100 times fainter in the sky than its companion star, and was first spotted as a "faint reddish speck of light" in 2004, and was inconclusively imaged by the Hubble Space Telescope (Hubble Space Telescope: + style="font-size:larger;"
www.absoluteastronomy.com /reference/2m1207b1   (609 words)

  
 Astronomers Confirm the First Image of a Planet Outside of Our Solar   (Site not responding. Last check: 2007-10-13)
Additional observations at a later epoch were required to prove beyond any doubt that the two objects, 2M1207A and 2M1207b, indeed move together in the sky and are therefore gravitationally bound to each other.
For Gael Chauvin, astronomer at ESO and leader of the team of astronomers who conducted the study, "this new set of NACO measurements unambiguously confirms that 2M1207b is a planetary mass companion to the young brown dwarf 2M1207A.
Using the same strategy as for 2M1207b, the astronomers observed the AB Pic system at different epochs over a time span of a year and a half and confirmed that the companion is not a background object.
www.talkaboutscience.com /group/sci.astro/messages/497584.html   (1716 words)

  
 First exo-planet discovered
Based on the infrared colours and the spectral data, evolutionary model calculations lead to the conclusion that 2M1207b is a 5 Jupiter-masses planet [3].
It was therefore only possible to assess with certainty that the close companion to GQ Lup has most probably a mass between 1 and 42 Jupiter-masses, and therefore could be either an exoplanet or a brown dwarf.
The discovery of 2M1207b, AB Pic b and GQ Lup b/B, all within a short period of time, bring evidence that new, carefully designed surveys, using state-of-art instruments on the most advanced facilities, can provide astronomers with images of planetary companions.
www.sfcrowsnest.com /news/arc/2005/nz8131.php   (1268 words)

  
 Yes, it is the image of an exoplanet
The spectrum of 2M1207b presents a strong signature of water molecules, thereby confirming that it must be cold.
Based on the infrared colours and the spectral data, evolutionary model calculations led to the conclusion that 2M1207b is a 5 Jupiter-mass planet.
Its mass can be estimated also by use of a different method of analysis, which focuses on the strength of its gravitational field; this technique suggests that the mass might be even less than 5 Jupiters.
www.eurekalert.org /pub_releases/2005-04/eso-yii042805.php   (658 words)

  
 Extrasolar Planets: Two Teams Claim Its Picture of Distant Planetary-Mass Object is First, but Neither is Official Yet ...
The problem with 2M1207b, according to Boss, is that it is orbiting around a brown dwarf.
Indeed, the Chauvin team arrived at the 5 Jupiter-mass size of 2M1207b from the infrared colors and the spectral data, and evolutionary model calculations.
Nevertheless, Chauvin, Zuckerman, and colleagues remain convinced they have imaged the first ESP. The spectrum of 2M1207b, they have reported, presents a strong signature of water molecules, which indicates that it must be cold, and is typical of a planet with an atmosphere and not of a star or brown dwarf.
www.planetary.org /news/2005/0505_Extrasolar_Planets_Two_Teams_Claim_Its.html   (1741 words)

  
 Centauri Dreams » Blog Archive » Hard Evidence for Exoplanetary Image
The giant world now called 2M1207b is located some 55 AU from its parent, which would place it well beyond the orbit of Pluto in our Solar System.
2M1207b is 100 times fainter than the brown dwarf it apparently orbits, and its spectrum shows the signature of water molecules, confirming its low temperature.
This entry was posted on Saturday, April 30th, 2005 at 14:36 and is filed under Exoplanetary Science.
www.centauri-dreams.org /?p=191   (424 words)

  
 SPACE.com -- Fresh Debate over First Photo of Extrasolar Planet
Today, the ESO team announced new observations of 2M1207b that show convincingly, they say, that their target is indeed a planet.
Leading theory suggests 2M1207b is between three and seven times the heft of Jupiter -- well within the limits of planethood.
The whole issue is further clouded by the fact that 2M1207b orbits a brown dwarf rather than a regular star.
www.space.com /scienceastronomy/050430_exoplanet_image.html   (1298 words)

  
 European Southern Observatory - Biocrawler   (Site not responding. Last check: 2007-10-13)
It is famous for discovering a candidate to be farthest galaxy ever seen by humans, the Abell 1835 IR1916 galaxy, though this claim seems to be debunked by a series of new articles.
In 2005, it obtained the first picture of an exosolar planet, 2M1207b, orbiting a brown dwarf 260 light-years away.
Most of its observation facilities are located in Chile (hence the name "Southern"), and the headquarters are located in Garching near Munich, Germany.
www.biocrawler.com /encyclopedia/ESO   (485 words)

  
 JYI.org :: Out of This World: Astronomers Confirm Image of Planet Outside Our Solar System   (Site not responding. Last check: 2007-10-13)
Caption: 2M1207b, the red dot, is the first image we have of an exoplanet.
2M1207b, as the feeble red dot is now known, is 100 times dimmer than its brown dwarf star.
Spectral data from 2M1207b suggests the presence of water, something that could only exist on a relatively cold planet.
www.jyi.org /news/nb.php?id=213   (607 words)

  
 The iWorld > Print > Astronomers confirm finding a new planet 2M1207b
Benjamin Zuckerman, part of the team of European and American astronomers and scientist said that this is truly the first time that a true planet outside our own solar system has been directly observed.
The mass of 2M1207b has been estimated by measuring its brightness.
The planet is orbiting a brown dwarf known as 2M1207A, almost at a distance that is nearly twice as much as Neptune is from our Sun.
iworld.proweblog.com /printerfriendly.php?p=120   (152 words)

  
 Astronomy - First exoplanet imaged - Michael E. Bakich
Astronomers imaged 2M1207b using the Hubble Space Telescope's NICMOS infrared camera in August 2004 and April 2005.
This means the separation between 2M1207b and the brown dwarf is 40 times that between the Earth and the Sun, making its "year" about 1,500 Earth-years long.
Because 2M1207b and its brown dwarf are so young, they glow brightly in the infrared and are easy to detect.
www.astronomy.com /asy/default.aspx?c=a&id=3105   (868 words)

  
 22 over 7 = [aspects + concepts of matter + energy / form flame light space image + imagination]
"[On April 30], an ESO team announced new observations of 2M1207b that convincingly show, they say, that their target is indeed a planet.
If so, it could be remembered as the first picture of an exoplanet, since the team had already released the initial image last fall.
"'This object [2M1207b] should be termed a sub-brown-dwarf (star), in order to convey this suspicion about its formation mechanism,' Boss said in an e-mail interview.
nmazca.com /3142857/2005/05/stop-pixel-pressesweve-got-planetary.htm   (785 words)

  
 2M1207 - Encyclopedia, History, Geography and Biography
Located at right ascension 12hr 7min 33.4sec, and declination -39° 32′ 54″ (J2000.0 celestial coordinates), 2M1207 was discovered during the course of the 2MASS infrared sky survey: hence the "2M" in its name, followed by its celestial coordinates.
This encyclopedia, history, geography and biography article about 2M1207 contains research on
2M1207, 2M1207b, References, Brown dwarfs, Centaurus constellation and Red dwarfs.
www.arikah.net /encyclopedia/2M1207   (288 words)

  
 Astronomers Take 1st Picture of Planet Outside Solar System » Outside The Beltway | OTB
Scientists say the planet - called 2M1207b - it is the first planet ever imaged outside of the Earth’s solar system.
When Dr. Chauvin’s group first announced the discovery of the object, known officially as 2M1207b, last year, they admitted that they could not prove that it was not just a background object unrelated to the brown dwarf.
Subsequent observations using the Very Large Telescope on Cerro Paranal in northern Chile and a system designed to take the twinkle out of starlight and thus get sharper images showed that the dwarf star and the suspected planet were moving together across the sky, cementing the notion that they are gravitationally bound.
www.outsidethebeltway.com /archives/2005/04/astronomers_take_1st_picture_of_planet_outside_solar_system   (891 words)

  
 UCLA Today: Discovery of a giant planet
It could have been an unusual galaxy or a peculiar cool star, although scientists thought this unlikely because it was located so close to the young brown dwarf in the plane of the sky.
The team, led by Gael Chauvin of the European Southern Observatory (ESO), found that the infrared spectrum of the object they discovered, now called 2M1207b, shows a strong signature of water molecules, indicating that the object is cold.
Based on the infrared colors and spectral data, evolutionary model calculations by team members led them to believe that 2M1207b was a planet five times the mass of Jupiter.
www.today.ucla.edu /2005/050510news_discovery.html   (549 words)

  
 BBC NEWS | Science/Nature | Planet 'seen' around distant sun
The planet, known as 2M1207b, is about five times the mass of Jupiter and is orbiting at a distance nearly twice as far as Neptune is from our Sun.
As a consequence, there are bound to be some scientists who will still question if 2M1207b really is a planet.
Lynne Hillenbrand, an assistant professor of astronomy at the California Institute of Technology, told the Associated Press news agency: "The claim of an object being a planet is subject to one's definition of planet, and there are different camps on what that definition is."
news.bbc.co.uk /2/hi/science/nature/4501323.stm   (664 words)

  
 Scholastic News: Our Future In Space
One is a sun, and the other is an enormous planet, five times bigger than Jupiter.
The speck, named 2M1207b, was discovered last year.
But astronomers couldn't prove it was a planet and not some other distant object.
teacher.scholastic.com /scholasticnews/indepth/space/news/index.asp?article=redspeck   (292 words)

  
 Photograph confirms a far-flung planet - Science - Features - In Depth
However, their existence has only been inferred by the distinctive gravitational "wobble" they exert on their parent star.
The star and its planet - dubbed 2M1207b - were first photographed in April last year.
However, astronomers could not confirm whether 2M1207b was in fact a planet in close proximity to the star.
www.theage.com.au /news/Science/Photograph-confirms-a-farflung-planet/2005/05/03/1115092494825.html   (465 words)

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