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arXiv · 0810.5348

Low Mass Companions for Five Solar-Type Stars from the Magellan Planet Search Program

Dante Minniti·R. Paul Butler·Mercedes Lopez-Morales·Stephen A. Shectman·Fred C. Adams·Pamela Arriagada·Alan P. Boss·John E. Chambers
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Abstract

We report low mass companions orbiting five Solar-type stars that have emerged from the Magellan precision Doppler velocity survey, with minimum (Msini) masses ranging from 1.2 to 25 Mjup. These nearby target stars range from mildly metal-poor to metal-rich, and appear to have low chromospheric activity. The companions to the brightest two of these stars have previously been reported from the CORALIE survey. Four of these companions (HD 48265-b, HD 143361-b, HD 28185-b, HD 111232-b) are low-mass Jupiter-like planets in eccentric intermediate and long-period orbits. On the other hand, the companion to HD 43848 appears to be a long period brown dwarf in a very eccentric orbit.

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Dante Minniti, R. Paul Butler, Mercedes Lopez-Morales, Stephen A. Shectman, Fred C. Adams, Pamela Arriagada, Alan P. Boss, John E. Chambers. 2008-10-29. Low Mass Companions for Five Solar-Type Stars from the Magellan Planet Search Program. https://doi.org/10.1088/0004-637x%2F693%2F2%2F1424

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