Spitzer Observations of Young Stars in IC2118, the Witch Head Nebula

Details Spitzer Observations of Young Stars in IC2118, the Witch Head Nebula Spitzer Observations of Young Stars in IC2118, the Witch Head Nebula

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21542820g&link_type=abstract

American Astronomical Society, AAS Meeting #215, #428.20; Bulletin of the American Astronomical Society, Vol. 42, p.348

Astronomy and Astrophysics

Astronomy

Scientific paper

We have used Spitzer infrared photometry, combined with complementary optical photometry, to conduct a census of young stellar objects in IC2118. IC2118 is most likely an example of triggered star formation, where the trigger is the Trapezium and/or the Orion-Eridanus superbubble. The characterization of YSOs in these clouds helps us to understand the process of triggered star formation in comparison to cloud-collapse star formation, specifically how the star formation efficiency, the initial mass function and the statistical circumstellar properties differ for this two formation modes.
In this poster we present how we used IRAC (3.6, 4.5, 5.8, and 8 microns), MIPS (24, 70, and 160 microns) and UVRcIc photometry to discover 6 new YSOs showing infrared excess, and we discuss the characteristics of the total of 11 (including our new 6) YSOs in IC2118.

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