A Caltech Library Service

NIRSPEC brown dwarf spectroscopic survey

Wilcox, Mavourneen K. and McLean, Ian S. and Becklin, E. E. and Figer, Donald F. and Gilbert, Andrea M. and Graham, James R. and Larkin, James E. and Levenson, N. A. and Teplitz, Harry I. and Kirkpatrick, J. Davy and Burgasser, Adam J. (2000) NIRSPEC brown dwarf spectroscopic survey. In: Discoveries and Research Prospects from 8- to 10-Meter-Class Telescopes. Proceedings of SPIE. No.4005. Society of Photo-optical Instrumentation Engineers (SPIE) , Bellingham, WA, pp. 296-300. ISBN 9780819436306.

[img] PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


The NIRSPEC Brown Dwarf Spectroscopic Survey is a project to obtain a consistent set of high-quality near-IR spectra for each spectral class and sub-class of low-mass and/or sub- stellar objects to provide a new data base for models of the atmosphere of brown dwarfs and extra-solar giant planets. Most of the current targets are L-dwarfs and T-dwarfs discovered by the 2MASS. The survey is begin performed with the recently-commissioned near-IR spectrometer, NIRSPEC, a 1-5 micrometers cryogenic spectrograph at the WM Keck Observatory on Mauna Kea, using resolving powers of R equals 2,500-25,000. Preliminary results for four sources, three L-dwarfs and one T-dwarf, are presented here. Spectra from 1.13-2.33 micrometers at an average resolution of R equals 2,500 illustrate the development of deep steam bands and the weakening of FeH through the L-sequence, and the emergence of methane bands in the T-dwarfs. Complex detail in the spectra are the result of blending of numerous unresolved molecular transitions.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Larkin, James E.0000-0001-7687-3965
Levenson, N. A.0000-0003-4209-639X
Teplitz, Harry I.0000-0002-7064-5424
Kirkpatrick, J. Davy0000-0003-4269-260X
Burgasser, Adam J.0000-0002-6523-9536
Additional Information:© 2000 Society of Photo-Optical Instrumentation Engineers (SPIE). It is a pleasure to acknowledge the hard work of past and present members of the NIRSPEC instrument team, without whose efforts these observations would not have been possible. In particular, we thank Maryanne Angliongto, Odvar Bendiksen, George Brims, Leah Buchholz, John Canfield, Kim Chim, Jonah Hare, Fred Lacayanga, Samuel Larson, Tim Liu, Nick Magnone, Gunnar Skulason, Michael Spencer, Jason Weiss and Woon Wong. It is a pleasure to acknowledge CARA instrument specialist Thomas A. Bida and all the CARA staff for their exceptional support. Finally, we also thank Peter Hauschildt and Adam Burrows for helpful advice about current model atmospheres of brown dwarfs.
Group:Infrared Processing and Analysis Center (IPAC)
Subject Keywords:low-mass stars, brown dwarfs, infrared spectroscopy, NIRSPEC, Keck telescope
Series Name:Proceedings of SPIE
Issue or Number:4005
Record Number:CaltechAUTHORS:20181204-132723071
Persistent URL:
Official Citation:Mavourneen K. Wilcox, Ian S. McLean, Eric E. Becklin, Donald Frank Figer, Andrea M. Gilbert, James R. Graham, James E. Larkin, N. A. Levenson, Harry I. Teplitz, J. Davy Kirkpatrick, Adam J. Burgasser, "NIRSPEC brown dwarf spectroscopic survey," Proc. SPIE 4005, Discoveries and Research Prospects from 8- to 10-Meter-Class Telescopes, (29 June 2000); doi: 10.1117/12.390148
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91458
Deposited By: George Porter
Deposited On:05 Dec 2018 21:41
Last Modified:16 Nov 2021 03:41

Repository Staff Only: item control page