The ultraviolet absorption spectrum of 3C 273

J. N. Bahcall, B. T. Jannuzi, Donald P. Schneider, G. F. Hartig, R. Bohlin, V. Junkkarinen

Research output: Contribution to journalArticle

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Abstract

We identify six Lyα absorption systems with equivalent widths greater than 0.2 Å in the ultraviolet spectrum of the nearby quasar 3C 273, more than expected on the basis of extrapolations of the observed number of Lyα clouds seen at large redshifts. Two Lyα lines appear to be produced by gas in the Virgo Cluster or by the halos of galaxies associated with the Virgo Cluster. We also detect all the interstellar absorption lines that are expected on the basis of abundance, atomic physics, and ionization considerations.

Original languageEnglish (US)
JournalAstrophysical Journal
Volume377
Issue number1 PART II
DOIs
StatePublished - Jan 1 1991

Fingerprint

ultraviolet absorption
ultraviolet spectra
absorption spectrum
absorption spectra
atomic physics
quasars
extrapolation
halos
ionization
physics
galaxies
gases
gas

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Bahcall, J. N., Jannuzi, B. T., Schneider, D. P., Hartig, G. F., Bohlin, R., & Junkkarinen, V. (1991). The ultraviolet absorption spectrum of 3C 273. Astrophysical Journal, 377(1 PART II). https://doi.org/10.1086/186103
Bahcall, J. N. ; Jannuzi, B. T. ; Schneider, Donald P. ; Hartig, G. F. ; Bohlin, R. ; Junkkarinen, V. / The ultraviolet absorption spectrum of 3C 273. In: Astrophysical Journal. 1991 ; Vol. 377, No. 1 PART II.
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Bahcall, JN, Jannuzi, BT, Schneider, DP, Hartig, GF, Bohlin, R & Junkkarinen, V 1991, 'The ultraviolet absorption spectrum of 3C 273', Astrophysical Journal, vol. 377, no. 1 PART II. https://doi.org/10.1086/186103

The ultraviolet absorption spectrum of 3C 273. / Bahcall, J. N.; Jannuzi, B. T.; Schneider, Donald P.; Hartig, G. F.; Bohlin, R.; Junkkarinen, V.

In: Astrophysical Journal, Vol. 377, No. 1 PART II, 01.01.1991.

Research output: Contribution to journalArticle

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T1 - The ultraviolet absorption spectrum of 3C 273

AU - Bahcall, J. N.

AU - Jannuzi, B. T.

AU - Schneider, Donald P.

AU - Hartig, G. F.

AU - Bohlin, R.

AU - Junkkarinen, V.

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Bahcall JN, Jannuzi BT, Schneider DP, Hartig GF, Bohlin R, Junkkarinen V. The ultraviolet absorption spectrum of 3C 273. Astrophysical Journal. 1991 Jan 1;377(1 PART II). https://doi.org/10.1086/186103