| タイトル | X-ray Properties of the Central kpc of AGN and Starbursts: The Latest News from Chandra |
| 本文（外部サイト） | http://hdl.handle.net/2060/20020091604 |
| 著者（英） | Weaver, Kimberly A.; White, Nicholas E. |
| 著者所属（英） | NASA Goddard Space Flight Center; Space Telescope Science Inst. |
| 発行日 | 2001-01-01 |
| 言語 | eng |
| 内容記述 | The X-ray properties of 15 nearby (v less than 3,000 km/s) galaxies that possess AGN (active galactic nuclei) and/or starbursts are discussed. Two-thirds have nuclear extended emission on scales from approx. 0.5 to approx. 1.5 kpc that is either clearly associated with a nuclear outflow or morphologically resembles an outflow. Galaxies that are AGN-dominated tend to have linear structures while starburst-dominated galaxies tend to have plume-like structures. Significant X-ray absorption is present in the starburst regions, indicating that a circumnuclear starburst is sufficient to block an AGN at optical wavelengths. Galaxies with starburst activity possess more X-ray point sources within their central kpc than non-starbursts. Many of these sources are more luminous than typical X-ray binaries. The Chandra results are discussed in terms of the starburst-AGN connection, a revised unified model for AGN, and possible evolutionary scenarios. |
| NASA分類 | Astronomy |
| 権利 | No Copyright |
|
