MASSIVE STAR FORMATION IN NGC 2074
- Department of Astronomy, University of Illinois, 1002 West Green Street, Urbana, IL 61801 (United States)
- Department of Chemistry, University of Illinois, Urbana, IL 61801 (United States)
- Department of Astronomy, University of Virginia, Charlottesville, VA 22904 (United States)
Spitzer observations of the Large Magellanic Cloud (LMC) have revealed a large population of young stellar objects (YSOs), but complementary high-resolution images in the optical or near-IR wavelengths are still needed to resolve the multiplicity and immediate environments of the YSOs. The Hubble Space Telescope imaged the star-forming region NGC 2074 in the LMC during its 100,000th orbit, providing an opportunity to more closely examine the YSOs and their environments in this region. We have studied the 10 YSO candidates identified from Spitzer observations, confirming their nature and determining their physical parameters by modeling their spectral energy distributions. The majority of the YSOs and central stars of ultracompact H II regions in NGC 2074 have masses consistent with spectral types of early B to late O. The co-existence of massive early-type O stars and the less massive YSOs indicates that their formation may have started at a similar time, a few 10{sup 5} yr ago. NGC 2074 provides an opportunity to study the evolution of massive stars at their infancy.
- OSTI ID:
- 21301458
- Journal Information:
- Astronomical Journal (New York, N.Y. Online), Vol. 139, Issue 1; Other Information: DOI: 10.1088/0004-6256/139/1/158; Country of input: International Atomic Energy Agency (IAEA); ISSN 1538-3881
- Country of Publication:
- United States
- Language:
- English
Similar Records
A HUBBLE SPACE TELESCOPE VIEW OF THE INTERSTELLAR ENVIRONMENTS OF YOUNG STELLAR OBJECTS IN THE LARGE MAGELLANIC CLOUD
A SPITZER SPACE TELESCOPE FAR-INFRARED SPECTRAL ATLAS OF COMPACT SOURCES IN THE MAGELLANIC CLOUDS. I. THE LARGE MAGELLANIC CLOUD