A spiral galaxy at Z = 0.366 which overlaps the image of the quasar 4C 39.47

Details A spiral galaxy at Z = 0.366 which overlaps the image of the quasar 4C 39.47 A spiral galaxy at Z = 0.366 which overlaps the image of the quasar 4C 39.47

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...337l...5h&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 337, Feb. 1, 1989, p. L5-L8.

Astronomy and Astrophysics

Astrophysics

4

Astronomical Spectroscopy, Image Analysis, Quasars, Spiral Galaxies, Absorption Spectra, Charge Coupled Devices, Hubble Space Telescope, Interstellar Gas, Luminosity, Red Shift

Scientific paper

Direct CCD images in broad-band R and I were obtained of the radio quasar 1632+391 (4C 39.46). A faint galaxy which overlaps the quasar's image was identified. The galaxy is centered 4.2 arcsecs east of the quasar, corresponding to 28 kpc at the galaxy's redshift. It is found that the galaxy is a disk-dominated late-type spiral with an absolute B magnitue of -21.6. Low-dispersion spectroscopy yielded a redshift of 0.3662 for the galaxy based on Ca II, H, and K absorption and weak forbidden line O II 3727 emission. It is suggested that appreciable interstellar gas is present in the galaxy.

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