UCHII Regions and Newly Born O-type Stars

Details UCHII Regions and Newly Born O-type Stars UCHII Regions and Newly Born O-type Stars

Jun 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008iaus..250..285c&link_type=abstract

Massive Stars as Cosmic Engines, Proceedings of the International Astronomical Union, IAU Symposium, Volume 250, p. 285-292

Other

Stars: Formation, Ism: Hii Regions, Infrared: Ism

Scientific paper

We have obtained Spitzer IRAC and MIPS mid-IR images of a sample of 43 radio selected UCHII region sources to ascertain (a) whether the newly born O stars within are found with other stars in their birthplaces and (b) the nature of the surroundings. 37 of the sources appear to be in small clusters, and 33 are found in connection with other hot star formation activity. Thus, for the most part, O stars are not born in isolation. Here we give examples of the mid-IR images of the various types of UCHII regions.

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