Resolving the Buried Starburst in Arp 299
| Autor: | George E. Gull, Gordon J. Stacey, Vassilis Charmandaris |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Physics
Infrared Point source Star formation Astrophysics::High Energy Astrophysical Phenomena Astrophysics (astro-ph) FOS: Physical sciences Flux Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Galaxy Luminosity Wavelength Space and Planetary Science Astrophysics::Solar and Stellar Astrophysics Spectral energy distribution Astrophysics::Earth and Planetary Astrophysics Astrophysics::Galaxy Astrophysics |
| Zdroj: | The Astrophysical Journal. 571:282-287 |
| ISSN: | 1538-4357 0004-637X |
| DOI: | 10.1086/339896 |
| Popis: | We present new 37.7 micron far-infrared imaging of the infrared luminous (L_IR ~ 5.16x10^{11} L_sun) interacting galaxy Arp299 (= IC694 + NGC3690). We show that the 38 micron flux, like the 60 and 100 micron emission, traces the luminosity of star forming galaxies, but at considerably higher spatial resolution. Our data establish that the major star formation activity of the galaxy originates from a point source in its eastern component, IC694, which is inconspicuous in the optical, becoming visible only at the near and mid-infrared. We find that IC694 is two times more luminous than NGC3690, contributing to more than 46% of the total energy output of the system at this wavelength. The spectral energy distribution of the different components of the system clearly shows that IC694, has 6 times the infrared luminosity of M82 and it is the primary source responsible for the bolometric luminosity of Arp299. 9 pages, 2 figures. Accepted in The Astrophysical Journal on 16 Jan. 2002 |
| Databáze: | OpenAIRE |
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