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Reviving Fomalhaut b

A second look at data from NASA's Hubble Space Telescope is reanimating the claim that the nearby star Fomalhaut hosts a massive exoplanet. The study suggests that the planet, named Fomalhaut b, is a rare and possibly unique object that is completely shrouded by dust.

Fomalhaut is the brightest star in the constellation Piscis Austrinus and lies 25 light-years away.

In November 2008, Hubble astronomers announced the exoplanet, named Fomalhaut b, as the first one ever directly imaged in visible light around another star. The object was imaged just inside a vast ring of debris surrounding but offset from the host star. The planet's location and mass -- about three times Jupiter's -- seemed just right for its gravity to explain the ring's appearance.

Recent studies have claimed that this planetary interpretation is incorrect. Based on the object's apparent motion and the lack of an infrared detection by NASA's Spitzer Space Telescope, they argue that the object is a short-lived dust cloud unrelated to any planet.

A new analysis, however, brings the planet conclusion back to life.

Watch this video on YouTube.

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More information on this topic available at:
http://www.nasa.gov/mission_pages/hubble/science/fomalhaut-exo.html

In 2008, Hubble astronomers announced the detection of a giant planet around the bright star Fomalhaut. Recent studies have questioned this conclusion. Now, a reanalysis of Hubble data has revived the 'deceased' exoplanet as a dust-shrouded world with less than twice the mass of Jupiter. Credit: NASA's Goddard Space Flight Center    In 2008, Hubble astronomers announced the detection of a giant planet around the bright star Fomalhaut. Recent studies have questioned this conclusion. Now, a reanalysis of Hubble data has revived the 'deceased' exoplanet as a dust-shrouded world with less than twice the mass of Jupiter. Credit: NASA's Goddard Space Flight Center

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On November 13, 2008 Fomalhaut b was announced as an exoplanet.  Then on January 20, 2012, a paper was published calling this status into question.  Now, a new study has reanimated this formerly    On November 13, 2008 Fomalhaut b was announced as an exoplanet. Then on January 20, 2012, a paper was published calling this status into question. Now, a new study has reanimated this formerly "dead" exoplanet.

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On November 13, 2008 Fomalhaut b was announced as an exoplanet.  Then on January 20, 2012, a paper was published calling this status into question.  Now, a new study has reanimated this formerly    On November 13, 2008 Fomalhaut b was announced as an exoplanet. Then on January 20, 2012, a paper was published calling this status into question. Now, a new study has reanimated this formerly "dead" exoplanet. Alternate version.

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This visible-light image from the Hubble Space Telescope shows the vicinity of the star Fomalhaut, including the location of its dust ring and disputed planet, Fomalhaut b. A coronagraphic mask helped dim the star's brightness. This view combines two 2006 observations that were taken with masks of different sizes (1.8 and 3 arcseconds). Labels. Credit: NASA/ESA/T. Currie (U. Toronto)    This visible-light image from the Hubble Space Telescope shows the vicinity of the star Fomalhaut, including the location of its dust ring and disputed planet, Fomalhaut b. A coronagraphic mask helped dim the star's brightness. This view combines two 2006 observations that were taken with masks of different sizes (1.8 and 3 arcseconds). Labels.

Credit: NASA/ESA/T. Currie (U. Toronto)

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This visible-light image from the Hubble Space Telescope shows the vicinity of the star Fomalhaut, including the location of its dust ring and disputed planet, Fomalhaut b. A coronagraphic mask helped dim the star's brightness. This view combines two 2006 observations that were taken with masks of different sizes (1.8 and 3 arcseconds). No Labels. Credit: NASA/ESA/T. Currie (U. Toronto)    This visible-light image from the Hubble Space Telescope shows the vicinity of the star Fomalhaut, including the location of its dust ring and disputed planet, Fomalhaut b. A coronagraphic mask helped dim the star's brightness. This view combines two 2006 observations that were taken with masks of different sizes (1.8 and 3 arcseconds). No Labels.

Credit: NASA/ESA/T. Currie (U. Toronto)

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This is an artist's impression of the exoplanet, Fomalhaut b, orbiting its sun, Fomalhaut. Credit:ESA/Hubble (M. Kornmesser) and ESO (L. Cal    This is an artist's impression of the exoplanet, Fomalhaut b, orbiting its sun, Fomalhaut.

Credit:ESA/Hubble (M. Kornmesser) and ESO (L. Cal
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Formation of a ring around an extrasolar planet (artist's impression) Credit: ESA/Hubble (M. Kornmesser & L. L. Christensen) View and download multiple formats of this video at ESA/Hubble's website.    Formation of a ring around an extrasolar planet (artist's impression)

Credit: ESA/Hubble (M. Kornmesser & L. L. Christensen)

View and download multiple formats of this video at ESA/Hubble's website.
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Short URL to This Page:http://svs.gsfc.nasa.gov/goto?11116
Animation Number:11116
Completed:2012-10-16
Animators:Scott Wiessinger (USRA) (Lead)
 Chris Smith (HTSI)
 Genna Duberstein (USRA)
Video Editor:Scott Wiessinger (USRA)
Narrator:Chris Meaney (HTSI)
Producer:Scott Wiessinger (USRA)
Writers:Scott Wiessinger (USRA)
 Francis Reddy (Syneren Technologies)
Platform/Sensor/Data Set:HST
Series:Narrated Movies
 Astrophysics Stills
 Astrophysics Features
Goddard TV Tape:G2012-111 -- Fomalhaut b Zombie
Please give credit for this item to:
NASA/Goddard Space Flight Center. However, individual images should be credited as indicated above.
 
Keywords:
SVS >> HDTV
SVS >> Music
SVS >> Hubble Space Telescope
SVS >> Astrophysics
SVS >> Edited Feature
SVS >> Space
DLESE >> Narrated
SVS >> Exo-planet
SVS >> Star
NASA Science >> Planets and Moons
NASA Science >> Universe
Science paper:http://arxiv.org/abs/1210.6620
 
 


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Many of our multimedia items use the GCMD keywords. These keywords can be found on the Internet with the following citation:
Olsen, L.M., G. Major, K. Shein, J. Scialdone, S. Ritz, T. Stevens, M. Morahan, A. Aleman, R. Vogel, S. Leicester, H. Weir, M. Meaux, S. Grebas, C.Solomon, M. Holland, T. Northcutt, R. A. Restrepo, R. Bilodeau, 2013. NASA/Global Change Master Directory (GCMD) Earth Science Keywords. Version 8.0.0.0.0

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