X-Ray–emitting QSO[CLC]s[/CLC] Ejected from Arp 220
Open Access
- 20 May 2001
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 553 (1) , L11-L13
- https://doi.org/10.1086/320499
Abstract
Four compact ROSAT X-ray sources very close to the nearby ultraluminous infrared galaxy Arp 220 (IC 4553) have been identified as medium-redshift QSOs. The closest pair lying symmetrically across the galaxy have almost identical 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.Keywords
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