On the Nature of the Purported Common Proper Motion Companions to the Exoplanet Host Star 51 Peg

Details On the Nature of the Purported Common Proper Motion Companions to the Exoplanet Host Star 51 Peg On the Nature of the Purported Common Proper Motion Companions to the Exoplanet Host Star 51 Peg

2010-04-27

arxiv.org/abs/1004.4700v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

5 pages, 1 figure, AN, in press

Scientific paper

Greaves (2006) proposed that three red, high proper motion stars within 10 degrees of 51 Peg (NLTT 54007, 54064, & 55547) are co-moving companions to this famous exoplanet host star. While the stars clearly have proper motions similar to 51 Peg, the inferred kinematic parallaxes for these stars produce extremely inconsistent color-magnitude positions 2 to 4 magnitudes below the main sequence. All three stars are likely to be background stars unrelated to 51 Peg.

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