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.
@article{arxiv.0810.5348,
title = {Low Mass Companions for Five Solar-Type Stars from the Magellan Planet Search Program},
author = {Dante Minniti and R. Paul Butler and Mercedes Lopez-Morales and Stephen A. Shectman and Fred C. Adams and Pamela Arriagada and Alan P. Boss and John E. Chambers},
journal= {arXiv preprint arXiv:0810.5348},
year = {2011}
}
Comments
Accepted for publication on ApJ, 26 pages, 10 figures, 7 tables