Abstract
X-ray studies of high-redshift (z > 4) active galaxies have advanced substantially over the past few years, largely due to results from the new generation of X-ray observatories. As of this writing X-ray emission has been detected from nearly 60 high-redshift active galaxies. This paper reviews the observational results and their implications for models of the first massive black holes, and it discusses future prospects for the field.
Original language | English (US) |
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Pages (from-to) | 2478-2485 |
Number of pages | 8 |
Journal | Advances in Space Research |
Volume | 34 |
Issue number | 12 SPEC.ISS. |
DOIs | |
State | Published - 2004 |
All Science Journal Classification (ASJC) codes
- Aerospace Engineering
- Astronomy and Astrophysics
- Geophysics
- Atmospheric Science
- Space and Planetary Science
- General Earth and Planetary Sciences