A Chandra survey of nearby spiral galaxies
| Autor: | Philip Kaaret, Miriam I. Krauss, Andrea Prestwich, Martin Ward, R. E. Kilgard |
|---|---|
| Rok vydání: | 2003 |
| Předmět: |
Physics
Luminous infrared galaxy Spiral galaxy Astrophysics::High Energy Astrophysical Phenomena Astronomy Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Space and Planetary Science Bulge Galaxy group Elliptical galaxy Disc Lenticular galaxy Astrophysics::Galaxy Astrophysics Luminosity function (astronomy) |
| Zdroj: | Astronomische Nachrichten. 324:121-123 |
| ISSN: | 1521-3994 0004-6337 |
| DOI: | 10.1002/asna.200310031 |
| Popis: | We present results from a Chandra survey of 11 nearby, face-on spiral galaxies. 24 observations totalling 900 ks of new and archival Chandra data reveal more than 1000 X-ray point sources associated with the galaxies, diffuse emission, and hundreds of serendipitous sources. We discuss source populations and luminosity functions and show that the slope of the X-ray luminosity function is correlated with the star formation rate in the galaxies. We also discuss ultraluminous X-ray sources in comparison with sources within the Milky Way. Finally, we discuss ongoing work on source classification based upon X-ray colors and spectra, position within the host galaxies, and multiwavelenth counterparts. |
| Databáze: | OpenAIRE |
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