A quasar companion to the puzzling quasar SDSS J0927+2943

被引：6
作者：
Decarli, R. [1 ,2 ]
Falomo, R. [3 ]
Treves, A. [1 ,4 ]
Barattini, M. [1 ]
机构：
[1] Univ Insubria, I-22100 Como, Italy
[2] MPIA, D-69117 Heidelberg, Germany
[3] Osserv Astron Padova, INAF, I-35122 Padua, Italy
[4] Univ Milano Bicocca, Ist Naz Fis Nucl, I-20126 Milan, Italy
来源：
ASTRONOMY & ASTROPHYSICS | 2010年 / 511卷
关键词：
quasars: general; quasars: emission lines; quasars: individual: SDSS J092712.65+294344.0; DIGITAL-SKY-SURVEY; BLACK-HOLE; HOST GALAXIES; RADIO; DISCOVERY; EMISSION; CATALOG; EXCESS; PAIRS;
D O I：
10.1051/0004-6361/200913760
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We report the discovery of a quasar close to SDSS J0927+2943 (z = 0.713), which is a massive binary/recoiling black hole candidate. The companion quasar is at a projected distance of 125 h(70)(-1) kpc and exhibits a radial velocity difference of similar to 1400 km s(-1) with respect to the known quasar. We discuss the nature of this peculiar quasar pair and the properties of its environment. We propose that the overall system is caught in the process of ongoing structure formation.
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页数：4
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