IR Spectroscopy of High-Redshift Quasars
نویسندگان
چکیده
منابع مشابه
XMM - Newton spectroscopy of high - redshift quasars
XMM-Newton observations of 29 high redshift (z>2) quasars, including seven radio-quiet, 16 radio-loud and six Broad Absorption Line (BAL) objects, are presented; due to the high redshifts, the rest-frame energy bands extend up to ∼ 30–70 keV. Over 2–10 keV, the quasars can be well fitted in each case by a simple power-law, with no strong evidence for iron emission lines. The lack of iron lines ...
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1 Instituto de Astrofísica de Andalucía, IAA-CSIC, Granada, Spain, 2 INAF, Osservatorio Astronomico di Padova, Padova, Italy, 3 CONACYT Research Fellow, Instituto de Astronomía, Universidad Nacional Autónoma de México, Mexico City, Mexico, 4 Instituto de Astronomía, Universidad Nacional Autónoma de México, Mexico City, Mexico, 5 Dipartimento di Fisica Astronomia “Galileo Galilei”, University of...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1997
ISSN: 0252-9211
DOI: 10.1017/s0252921100039786