NuSTAR REVEALS RELATIVISTIC REFLECTION BUT NO ULTRA-FAST OUTFLOW IN THE QUASAR PG 1211+143

被引：44

作者：

Zoghbi, A. ^{[1
]}

Miller, J. M. ^{[1
]}

Walton, D. J. ^{[2
,3
]}

Harrison, F. A. ^{[3
]}

Fabian, A. C. ^{[4
]}

Reynolds, C. S. ^{[5
]}

Boggs, S. E. ^{[6
]}

Christensen, F. E. ^{[7
]}

Craig, W. ^{[6
]}

Hailey, C. J. ^{[8
]}

Stern, D. ^{[2
]}

Zhang, W. W. ^{[9
]}

机构：

[1] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA

[2] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[3] CALTECH, Space Radiat Lab, Pasadena, CA 91125 USA

[4] Univ Cambridge, Inst Astron, Cambridge CB3 OHA, England

[5] Univ Maryland, Dept Astron, College Pk, MD 20742 USA

[6] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA

[7] Tech Univ Denmark, DTU Space Natl Space Inst, DK-2800 Lyngby, Denmark

[8] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA

[9] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2015年 / 799卷 / 02期

基金：

美国国家航空航天局;

关键词：

accretion; accretion disks; galaxies: active; galaxies: nuclei; quasars: absorption lines; quasars: individual (PG 1211+143); ACTIVE GALACTIC NUCLEI; SUPERMASSIVE BLACK-HOLES; HOST GALAXIES; NGC; 1365; DISK; LINE; MODELS; NARROW;

D O I：

10.1088/2041-8205/799/2/L24

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on four epochs of observations of the quasar PG 1211+143 using NuSTAR. The net exposure time is 300 ks. Prior work on this source found suggestive evidence of an ultra-fast outflow ( UFO) in the Fe K band with a velocity of approximately 0.1c. The putative flow would carry away a high-mass flux and kinetic power, with broad implications for feedback and black hole-galaxy co-evolution. NuSTAR detects PG 1211+143 out to 30 keV, meaning that the continuum is well-defined both through and above the Fe K band. A characteristic relativistic disk reflection spectrum is clearly revealed via a broad Fe K emission line and Compton back-scattering curvature. The data offer only weak constraints on the spin of the black hole. A careful search for UFOs shows no significant absorption feature above 90% confidence. The limits are particularly tight when relativistic reflection is included. We discuss the statistics and the implications of these results in terms of connections between accretion onto quasars, Seyferts, and stellar-mass black holes, and feedback into their host environments.

引用

页码：1 / 5

页数：5

共 29 条

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