X-ray-emitting QSOs ejected from Arp 220

Authors
Arp, HC Burbidge, EM Chu, Y Zhu, X
Citation
Hc. Arp et al., X-ray-emitting QSOs ejected from Arp 220, ASTROPHYS J, 553(1), 2001, pp. L11-L13
Citations number
14
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL
ISSN journal
0004637X → ACNP
Volume
553
Issue
1
Year of publication
2001
Part
2
Pages
L11 - L13
Database
ISI
SICI code
0004-637X(20010520)553:1<L11:XQEFA2>2.0.ZU;2-M
Abstract
Four compact ROSAT X-ray sources very close to the nearby ultraluminous inf rared galaxy Arp 220 (IC 4553) have been identified as medium-redshift QSOs . The closest pair lying symmetrically across the galaxy have almost identi cal redshifts z = 1.25, 1.26. All of the evidence suggests that these QSOs have been ejected from Arp 220 and have large intrinsic redshifts.