Discovery of an X-ray selected quasar with a redshift of 4.45

D. P. Schneider; Maarten Schmidt; G. Hasinger; I. Lehmann; J. E. Gunn; R. Giacconi; J. Trümper; G. Zamorani

doi:10.1086/300307

Discovery of an X-ray selected quasar with a redshift of 4.45

D. P. Schneider
, Maarten Schmidt
, G. Hasinger
, I. Lehmann
, J. E. Gunn
, R. Giacconi
, J. Trümper
, G. Zamorani

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

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)
Pages (from-to)	1230-1233
Number of pages	4
Journal	Astronomical Journal
Volume	115
Issue number	4
DOIs	https://doi.org/10.1086/300307
State	Published - Apr 1998

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/300307

Cite this

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title = "Discovery of an X-ray selected quasar with a redshift of 4.45",

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.",

author = "Schneider, \{D. P.\} and Maarten Schmidt and G. Hasinger and I. Lehmann and Gunn, \{J. E.\} and R. Giacconi and J. Tr{\"u}mper and G. Zamorani",

year = "1998",

month = apr,

doi = "10.1086/300307",

language = "English (US)",

volume = "115",

pages = "1230--1233",

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publisher = "American Astronomical Society",

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T1 - Discovery of an X-ray selected quasar with a redshift of 4.45

AU - Schneider, D. P.

AU - Schmidt, Maarten

AU - Hasinger, G.

AU - Lehmann, I.

AU - Gunn, J. E.

AU - Giacconi, R.

AU - Trümper, J.

AU - Zamorani, G.

PY - 1998/4

Y1 - 1998/4

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/0005250137

UR - https://www.scopus.com/pages/publications/0005250137#tab=citedBy

U2 - 10.1086/300307

DO - 10.1086/300307

M3 - Article

AN - SCOPUS:0005250137

SN - 0004-6256

VL - 115

SP - 1230

EP - 1233

JO - Astronomical Journal

JF - Astronomical Journal

IS - 4

ER -

Discovery of an X-ray selected quasar with a redshift of 4.45

Abstract

All Science Journal Classification (ASJC) codes

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