Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21546413k&link_type=abstract
American Astronomical Society, AAS Meeting #215, #464.13; Bulletin of the American Astronomical Society, Vol. 42, p.500
Astronomy and Astrophysics
Astronomy
Scientific paper
We present far-UV spectra obtained with the Cosmic Origins Spectrograph (COS) of the QSOs VII Zw 244 and SBS 1122+594, which both have foreground galaxies within a projected distance of 35 kpc. The COS spectrum of VII Zw 244 (z = 0.131) shows strong (but not damped) Lyman alpha absorption as well as absorption from C II, C IV, Si III, and Si IV at the redshift of UGC 4527 (z = 0.002), a low surface brightness galaxy located 7 kpc from the QSO sight line. The relatively low H I column density and high ionization state of this metal-line system is somewhat surprising since one typically expects QSO/galaxy pairs with such small physical separations to host damped Ly-alpha absorbers. The COS spectrum of SBS 1122+594 (z = 0.852) shows Ly-alpha and C IV absorption at the redshift of IC 691 (z = 0.004), a dwarf starburst galaxy located 33 kpc away. We argue that the gas seen in absorption in the SBS 1122+594 sight line originated in a starburst wind from IC 691.
Froning Cynthia S.
Green James C.
Keeney Brian A.
Osterman Steve
Penton Steven Victor
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