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Imaging and Spectroscopy of Hot (Young) "Ultracool" Companions

Schneider, G. and Lowrance, P. J. and Becklin, E. E. and Kirkpatrick, J. D. and Plait, P. and Heap, S. R. and Malumuth, E. and Terille, R. J. and Dumas, C. and Schultz, A. B. and Smith, B. A. and Weinberger, A. J. and Hines, D. C. (2001) Imaging and Spectroscopy of Hot (Young) "Ultracool" Companions. In: Ultracool Dwarfs: New Spectral Types L and T. Springer , Berlin, pp. 56-70. ISBN 978-3-642-62682-1.

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We report the initial results from a program of HST/STIS spectroscopy of “hot” low-mass (brown dwarf) companions to nearby young stars identified in our HST/NICMOS coronagraphic imaging survey. We present spectra of the likely 20 and 40 Jupiter mass companions to CD -33° 7795 and HR 7329, respectively, the binary companions to GL 577 (both, possibly, brown dwarfs), and the low-mass star GL 503.2B. We discuss the state of our recent follow-up observations of the putative companion to TWA 6. We add these companions to the very few already known, allowing the first steps to be taken toward answering many fundamental questions regarding the formation and evolution of multiple systems with components near and below the stellar/substellar boundary.

Item Type:Book Section
Related URLs:
URLURL TypeDescription ReadCube access
Schneider, G.0000-0002-4511-5966
Lowrance, P. J.0000-0001-8014-0270
Kirkpatrick, J. D.0000-0003-4269-260X
Weinberger, A. J.0000-0001-6654-7859
Hines, D. C.0000-0003-4653-6161
Additional Information:© 2001 Springer-Verlag Berlin Heidelberg. This work is based, in part, on observations with the NASA/ESA Hubble Space Telescope obtained at the Space Telescope Science Institute, which is operated by AURA, Inc . under NASA contract NAS5-26555 and supported by grants NAG5-3042 and GO-98 .8176A to the NICMOS Instrument Definition and Environments of Nearby Stars teams. We acknowledge additional support by NASA grant NAG5-4688 to UCLA and the use of the Palomar and W.M. Keck observatories; the latter operated as a scientific partnership between the California Institute of Technology, the University of California and NASA.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Subject Keywords:Proper Motion; Giant Planet; Nearby Star; Brown Dwarf; Space Telescope Image Spectrograph
Record Number:CaltechAUTHORS:20191111-154836805
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:99787
Deposited By: Tony Diaz
Deposited On:12 Nov 2019 23:21
Last Modified:16 Nov 2021 17:49

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