Abstract
We present observations of RX J105225.9 + 571905, a z = 4.45 quasar discovered during a very deep ROSAT survey of the Lockman Hole. In addition to being the most distant known X-ray-selected quasar, RX J105225.9 + 571905 is among the least optically luminous quasars found to date at redshifts above 4.
Original language | English (US) |
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Pages (from-to) | 1230-1233 |
Number of pages | 4 |
Journal | Astronomical Journal |
Volume | 115 |
Issue number | 4 |
DOIs | |
State | Published - Apr 1998 |
All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics
- Space and Planetary Science