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: http://www.stsci.edu/~kgordon/papers/2006ApJS..162..329B.html
Дата изменения: Thu Jan 21 20:04:08 2016 Дата индексирования: Sun Apr 10 16:20:56 2016 Кодировка: ISO8859-5 Поисковые слова: star trail |
We present ultraviolet, optical, near-infrared, Spitzer mid-infrared, and radio images of 14 radio-selected objects in M33. These objects are thought to represent the youngest phase of star cluster formation. We have detected the majority of cluster candidates in M33 at all wavelengths. From the near-IR images, we derived ages 2-10 Myr, KS-band extinctions (AKS) of 0-1 mag, and stellar masses of 103-104 Msolar. We have generated spectral energy distributions (SEDs) of each cluster from 0.1 to 160 ЮМm. From these SEDs, we have modeled the dust emission around these star clusters to determine the dust masses (1-103 Msolar) and temperatures (40-90 K) of the clusters' local interstellar medium. Extinctions derived from the JHKS, HЮБ, and UV images are similar to within a factor of 2 or 3. These results suggest that 11 of the 14 radio-selected objects are optically visible young star clusters with a surrounding H II region, that 2 are background objects, possibly active galactic nuclei (AGNs), and that 1 is a Wolf-Rayet star with a surrounding H II region.
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Copyright © 2012 Karl D. Gordon All Rights Reserved