Forbidden O II and O III emission 29 arcsec from a QSO absorption-line region

Journal Article · Tue Dec 01 04:00:00 EST 1987 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/185049· OSTI ID:5404397

Yanny, B; York, D G; Hamilton, D; Schommer, R A; Williams, T V

QSO 0453-423 (z QSO = 2.66) was imaged with a narrow-band filter centered on forbidden O II 3727 A at the redshift of a strong intervening absorption complex (z abs = 0.7256). Comparison with a broadband exposure revealed a small nonstellar object 29 arcsec (140/h kpc, H0 = 100 h km/s Mpc) from the QSO line of sight with total flux 1.8 + or - 0.4 x 10 to the -16th ergs/sq cm s in one emission line. Spectroscopic follow-up confirmed the forbidden O II emission and detected forbidden O III 5007 A. It is suggested that extended gas in the vicinity of galaxies produces the QSO absorption lines. 24 references.

• Research Organization: Chicago Univ., IL; National Optical Astronomy Observatories, Tucson, AZ; Rutgers Univ., Piscataway, NJ
• OSTI ID: 5404397
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 323; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION SPECTRA
CHARGED PARTICLES
COMPARATIVE EVALUATIONS
COSMIC GASES
COSMIC RADIO SOURCES
EMISSION SPECTRA
FLUIDS
GALACTIC EVOLUTION
GASES
IONS
OXYGEN IONS
QUASARS
SPECTRA
STAR EVOLUTION