Discovery of a Brown Dwarf Companion to Gliese 570ABC: A 2MASS T Dwarf Significantly Cooler than Gliese 229B

J. Burgasser, Adam; Davy Kirkpatrick, J.; M. Cutri, R.; McCallon, H.; L. Kopan, G.; E. Gizis, John; Liebert, James; Neill Reid, I.; E. Brown, Michael; G. Monet, D.; C. Dahn, C.; Beichman, Charles; F. Skrutskie, Michael

doi:10.1086/312522

Public

Discovery of a Brown Dwarf Companion to Gliese 570ABC: A 2MASS T Dwarf Significantly Cooler than Gliese 229B

Published in The Astrophysical Journal • Mar 1, 2000

Authors:

Adam J. Burgasser

J. Davy Kirkpatrick

R. M. Cutri

Abstract

We report the discovery of a widely separated (258&farcs;3+/-0&farcs;4) T dwarf companion to the Gl 570ABC system. This new component, Gl 570D, was initially identified from the Two Micron All-Sky Survey. Its near-infrared spectrum shows the 1.6 and 2.2 µm CH4 absorption bands characteristic of T dw...

Subject

Brown dwarf

Circumbinary planet

Physics

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