Open AccessCorMASS: A Compact and Efficient Near‐Infrared Spectrograph for Studying Low‐Mass Objects
Author(s) -
J. C. Wilson,
Michael F. Skrutskie,
Michael Colonno,
A. T. Enos,
J. D. Smith,
C. Henderson,
John E. Gizis,
D. G. Monet,
J. R. Houck
Publication year - 2001
Publication title -
publications of the astronomical society of the pacific
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.294
H-Index - 172
eISSN - 1538-3873
pISSN - 0004-6280
DOI - 10.1086/318619
Subject(s) - spectrograph , physics , observatory , telescope , sky , spectral resolution , prism , near infrared spectroscopy , infrared , optics , detector , astronomy , young stellar object , astrophysics , remote sensing , stars , spectral line , geology , star formation
CorMASS (Cornell Massachusetts Slit Spectrograph) is a compact,low-resolution (R=300), double-pass prism cross-dispersed near-infrared (NIR)spectrograph in operation on the Palomar Observatory 60-inch telescope. Its2-dimensional spectral format provides simultaneous coverage from lambda ~ 0.75microns to lambda ~ 2.5 microns (z'JHK bands). A remotely operated cold flipmirror permits its NICMOS3 detector to function as a K_s slit viewer to assistobject placement into the 2 arcsec x 15 arcsec slit. CorMASS was primarilydesigned for the rapid spectral classification of low-mass stellar andsub-stellar objects identified by the Two-Micron All Sky Survey (2MASS).CorMASS' efficiency and resolution also make it a versatile instrument for thespectral observation and classification of many other types of bright objects(K<14) including quasars, novae, and emission line objects.Comment: To be published in Feb 2001 PASP, 19 pages, 12 Figures, High Resolution file can be retrieved from ftp://iras2.tn.cornell.edu/pub/wilson/papers/cormass.ps.g
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