Journal
ASTRONOMICAL JOURNAL
Volume 137, Issue 4, Pages 4072-4082Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0004-6256/137/4/4072
Keywords
ISM: clouds; stars: formation; stars: pre-main sequence
Categories
Funding
- NASA [1285132]
- National Aeronautics and Space Administration
- National Science Foundation
Ask authors/readers for more resources
The giant molecular cloud G216-2.5, also known as Maddalena's cloud or the Maddalena-Thaddeus cloud, is distinguished by an unusual combination of high gas mass (1(-6) x 10(5)M(circle dot)), low kinetic temperatures (10 K), and the lack of bright far-IR emission. Although star formation has been detected in neighboring satellite clouds, little evidence for star formation has been found in the main body of this cloud. Using a combination of mid-IR observations with the IRAC and Multiband Imaging Photometer for Spitzer instruments onboard the Spitzer Space Telescope, and near-IR images taken with the Flamingos camera on the KPNO 2.1 m telescope, we identify a population of 41 young stars with disks and 33 protostars in the center of the cloud. Most of the young stellar objects are coincident with a filamentary structure of dense gas detected in CS (2 -> 1). These observations show that the main body of G216 is actively forming stars, although at a low stellar density comparable to that found in the Taurus cloud.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available