An Infrared Coronagraphic Survey for Substellar Companions

October 2005 • 2005AJ....130.1845L

Authors • Lowrance, Patrick J. • Becklin, E. E. • Schneider, Glenn • Kirkpatrick, J. Davy • Weinberger, Alycia J. • Zuckerman, B. • Dumas, Christophe • Beuzit, Jean-Luc • Plait, Phil • Malumuth, Eliot • Heap, Sally • Terrile, Richard J. • Hines, Dean C.

Abstract • We have used the F160W filter (1.4-1.8 μm) and the coronagraph on the Near-Infrared Camera and Multi-Object Spectrometer (NICMOS) on the Hubble Space Telescope to survey 45 single stars with a median age of 0.15 Gyr, an average distance of 30 pc, and an average H magnitude of 7 mag. For the median age we were capable of detecting a 30M_J companion at separations between 15 and 200 AU. A 5M_J object could have been detected at 30 AU around 36% of our primaries. For several of our targets that were less than 30 Myr old, the lower mass limit was as low as 1M_J, well into the high mass planet region. Results of the entire survey include the proper-motion verification of five low-mass stellar companions, two brown dwarfs (HR7329B and TWA5B), and one possible brown dwarf binary (Gl 577B/C).

Links

• SIMBAD http://simbad.u-strasbg.fr/simbo.pl?bibcode=2005AJ....130.1845L
• PDF https://stacks.iop.org/1538-3881/130/1845/pdf
• PREPRINT http://arxiv.org/abs/astro-ph/0506358
• DATA https://archive.stsci.edu/mastbibref.php?bibcode=2005AJ....130.1845L
• DATA https://hst.esac.esa.int/ehst/#/pages/search;bibcode=2005AJ....130.1845L
• DATA https://irsa.ipac.caltech.edu/bibdata/2005/L/2005AJ....130.1845L.html
• ELECTR https://doi.org/10.1086%2F432839
• SPIRES http://inspirehep.net/search?p=find+eprint+astro-ph/0506358