SPITZER OBSERVATIONS OF IC 2118

@article{Guieu2010SPITZEROO,
title={SPITZER OBSERVATIONS OF IC 2118},
author={Sylvain Guieu and Luisa M. Rebull and John R. Stauffer and Frederick John Vrba and Alberto Noriega-Crespo and Timothy Spuck and Theresa E. Roelofsen Moody and Barbel Sepulveda and C. R. Weehler and Anthony R. Maranto and David Michael Cole and Nicolas Flagey and Russ R. Laher and Bryan Edward Penprase and S. Ram{\'i}rez and Susan Renee Stolovy},
journal={The Astrophysical Journal},
year={2010},
volume={720},
pages={46-63}
}
• Published 1 July 2010
• Physics, Geology
• The Astrophysical Journal
IC 2118, also known as the Witch Head Nebula, is a wispy, roughly cometary, ~5 degree long reflection nebula, and is thought to be a site of triggered star formation. In order to search for new young stellar objects (YSOs), we have observed this region in seven mid- and far-infrared bands using the Spitzer Space Telescope and in four bands in the optical using the U. S. Naval Observatory 40 inch telescope. We find infrared excesses in four of the six previously known T Tauri stars in our…
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References

SHOWING 1-10 OF 42 REFERENCES
The IC 2118 association: New T Tauri stars in high-latitude molecular clouds
• Physics
• 2004
We identified new pre-main sequence stars in the region of high-latitude molecular clouds associated with the reflection nebula IC 2118, around $l \sim 208\degr$ and $b \sim -27\degr$. The stars were
Study of Molecular Clouds and Star Formation in the Region of IC 2118
• Physics
• 2001
We carried out a 12 CO surveyof molecular clouds in the region of the reflection nebula IC 2118. Our observations covered the whole area of IC 2118 (∼ 6deg 2 ) with a 2. � 6 beam at a 4 � grid
Spitzer Observations of NGC 1333: A Study of Structure and Evolution in a Nearby Embedded Cluster
• Physics
• 2008
We present a comprehensive analysis of structure in the young, embedded cluster, NGC 1333 using members identified with Spitzer and 2MASS photometry based on their IR-excess emission. A total of 137
Low Mass Star Formation in a Small Group, L1251B
• Physics
• 2005
We present a comprehensive study of a low-mass star-forming region, L1251B, at wavelengths from the near-infrared to the millimeter. L1251B, in which only one protostar, IRAS 22376+7455, was known
The North American and Pelican Nebulae. I. IRAC Observations
• Physics
• 2009
We present a 9 deg^2 map of the North American and Pelican Nebulae regions obtained in all four Infrared Array Camera (IRAC) channels with the Spitzer Space Telescope. The resulting photometry is
A SPITZER SURVEY OF YOUNG STELLAR CLUSTERS WITHIN ONE KILOPARSEC OF THE SUN: CLUSTER CORE EXTRACTION AND BASIC STRUCTURAL ANALYSIS
• Physics, Computer Science
• 2009
It is demonstrated that near-uniform source spacingsmore » in cluster cores are common, suggesting that simple Jeans fragmentation of parsec-scale cloud clumps may be the dominant process governing star formation in nearby clusters and groups.
Remnant Molecular Clouds in the Ori OB 1 Association
• Physics, Environmental Science
• 1998
We suggest and give some evidence that as an HII region expands and the O stars evolve into B giants, remains of the molecular clouds first appear as bright-rimmed clouds, then as cometary globules
Circumstellar Disk Candidates Identified from Ultraviolet Excesses in the Orion Nebula Cluster Flanking Fields
• Physics, Geology
• 2000
We present an optical study of four 45' × 45' fields centered ~05 east, west, north, and south of the Orion Nebula Cluster center. We have measured V and IC photometry for ~5000 stars, and U
Red and nebulous objects in dark clouds - A survey
A search on the NGS-PO Sky Survey photographs has revealed 150 interesting nebulous and/or red objects, mostly lying in dark clouds and not previously catalogued. Spectral classifications are
TRIGGERED STAR FORMATION IN THE ORION BRIGHT-RIMMED CLOUDS
• Physics
• 2005
We have developed an empirical and effective set of criteria, based on the Two Micron All Sky Survey (2MASS) colors, to select candidate classical T Tauri stars (CTTSs). This provides a useful tool