Title

The Phase-Dependent Infrared Brightness Of The Extrasolar Planet Υ Andromedae B

Abstract

The star υ Andromedae is orbited by three known planets, the innermost of which has an orbital period of 4.617 days and a mass at least 0.69 that of Jupiter. This planet is close enough to its host star that the radiation it absorbs overwhelms its internal heat losses. Here, we present the 24-micrometer light curve of this system, obtained with the Spitzer Space Telescope. It shows a variation in phase with the orbital motion of the innermost planet, demonstrating that such planets possess distinct hot substellar (day) and cold antistellar (night) faces.

Publication Date

10-27-2006

Publication Title

Science

Volume

314

Issue

5799

Number of Pages

623-626

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1126/science.1133904

Socpus ID

33750474095 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/33750474095

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