NASA's Hubble Discovers Extrasolar Planet Across Our Galaxy |
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NASA's Hubble Discovers Extrasolar Planet Across Our Galaxy |
 Oct 3 2006, 11:32 PM
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Junior Member  Group: Members Posts: 23 Joined: 20-February 06 From: Poland, Wroclaw Member No.: 685  |
http://www.spaceref.com/news/viewpr.html?pid=20919
QUOTE NASA hosts a science update at 1 p.m. EDT, Wednesday, Oct. 4, to discuss a Hubble Space Telescope discovery of extrasolar planet candidates orbiting a variety of distant stars. The update will be in the NASA Headquarters Auditorium, 300 E Street S.W.
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Oct 4 2006, 05:29 PM
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Junior Member Group: Members Posts: 23 Joined: 20-February 06 From: Poland, Wroclaw Member No.: 685 |
http://hubblesite.org/newscenter/newsdesk/...leases/2006/34/
NASA's Hubble Space Telescope has discovered 16 extrasolar planet candidates orbiting a variety of distant stars in the central region of our Milky Way galaxy. The planet bonanza was uncovered during a Hubble survey, called the Sagittarius Window Eclipsing Extrasolar Planet Search (SWEEPS). Hubble looked farther than has ever successfully been searched for extrasolar planets. Hubble peered at 180,000 stars in the crowded central bulge of our galaxy 26,000 light-years away or one-quarter the diameter of the Milky Way's spiral disk. The results will appear in the Oct. 5 issue of the journal Nature. |
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| Guest_AlexBlackwell_* |
Oct 4 2006, 05:44 PM
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Guests |
This refers to a paper by Sahu et al. in the October 5, 2006, issue of Nature. See the Editor's Summary for links.
See also: Increasing the odds of the sweep |
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Oct 5 2006, 12:50 PM
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 Member Group: Members Posts: 710 Joined: 28-September 04 Member No.: 99 |
Is it possible that some of these strange short-orbit planets discovered sofar with the transit method are actually sunspots?
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Oct 5 2006, 12:53 PM
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Member Group: Members Posts: 249 Joined: 11-June 05 From: Finland (62°14′N 25°44′E) Member No.: 408 |
Preprint of the article is available here: http://fr.arxiv.org/abs/astro-ph/0610098
-------------------- The universe is not only stranger than we imagine, it is stranger than we can imagine.
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Oct 5 2006, 01:42 PM
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 Senior Member Group: Members Posts: 3648 Joined: 1-October 05 From: Croatia Member No.: 523 |
QUOTE (OWW @ Oct 5 2006, 01:50 PM)  Is it possible that some of these strange short-orbit planets discovered sofar with the transit method are actually sunspots? Someone correct me if I'm wrong, but these transits probably last on the order of a few hours. A typical sunspot would last for days, given solar-like rotational speeds. Plus, it would have to be a large sunspot. While they are darker than surrounding photosphere, they're still much brighter than an occulting disc of the same angular size would be. So the sunspot would probably have to be fairly larger than a "typical" planet for a given amount of light attenuation. -------------------- |
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Oct 9 2006, 03:52 PM
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 Member Group: Members Posts: 531 Joined: 24-August 05 Member No.: 471 |
Here's a graphic of the new record star system by myself.
SWEEPS-10: 
-------------------- - blue_scape / Nico -
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