Archives for the 'extrasolar planets' Category
Brown Dwarfs (and Giant Planets)
Published on 12 Sep 2006 at 5:04 pm.
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Filed under extrasolar planets, planets, stars.
Some years ago, when I was in graduate school, I was asked to write a column for the university’s astronomy club’s monthly newsletter. It was the “Astroquestion of the Month” column. Anyway, the last question that I posed before leaving was, “What is a brown dwarf?” At the time, no one had yet positively identified a brown dwarf, so […]
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Pulsar Planets
Published on 20 Jul 2006 at 5:12 am.
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Filed under extrasolar planets, planets.
For a long time, astronomers have believed that planets form as a consequence of star formation. The accretion disk feeding the protostar becomes a disk of material orbiting the young star. This disk, called a proplyd, is the site of forming planets. Otto Struve even proposed that planets are a natural consequence […]
