High chemical abundances in H I deficient spirals of the virgo cluster

Gregory A. Shields, Evan D. Skillman, Robert C. Kennicutt, Dennis F Zaritsky

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

New spectroscopic observations of H II regions, together with published data, are used to derive interstellar O abundances in 9 late-type spiral galaxies in the Virgo cluster. The galaxies are divided into 3 groups according to their deficiency of H I relative to normal field spirals. Generally, the most H I deficient galaxies are closest to the cluster core. The outlying spirals with normal H I content show abundances and radial abundance gradients similar to those in field spirals. The H I deficient galaxies show abundances larger by about 0.3 dex and relatively flat radial gradients. The galaxies with an intermediate degree of H I deficiency are intermediate in O abundance. These results confirm and clarify earlier indications that spirals evolve to higher chemical abundances in the cluster environment. Simple chemical evolution models indicate that curtailment of infall into spirals in the cluster core may explain part of the abundance differential, but there appears to be a need for other mechanisms.

Original languageEnglish (US)
Title of host publicationRevista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
Pages149-152
Number of pages4
Volume3
StatePublished - 1995
Externally publishedYes
Event5th Mexico-Texas Conference on Astrophysics: Gaseous Nebulae and Star Formation - Tequesquitengo, Mor, Mexico
Duration: Apr 3 1995Apr 5 1995

Other

Other5th Mexico-Texas Conference on Astrophysics: Gaseous Nebulae and Star Formation
CountryMexico
CityTequesquitengo, Mor
Period4/3/954/5/95

Fingerprint

galaxies
gradients
chemical evolution
H II regions
spiral galaxies
chemical
indication
need

Keywords

  • Galaxies: abundances
  • Galaxies: clustering
  • Galaxies: evolution
  • H II regions

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Shields, G. A., Skillman, E. D., Kennicutt, R. C., & Zaritsky, D. F. (1995). High chemical abundances in H I deficient spirals of the virgo cluster. In Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias (Vol. 3, pp. 149-152)

High chemical abundances in H I deficient spirals of the virgo cluster. / Shields, Gregory A.; Skillman, Evan D.; Kennicutt, Robert C.; Zaritsky, Dennis F.

Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias. Vol. 3 1995. p. 149-152.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Shields, GA, Skillman, ED, Kennicutt, RC & Zaritsky, DF 1995, High chemical abundances in H I deficient spirals of the virgo cluster. in Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias. vol. 3, pp. 149-152, 5th Mexico-Texas Conference on Astrophysics: Gaseous Nebulae and Star Formation, Tequesquitengo, Mor, Mexico, 4/3/95.
Shields GA, Skillman ED, Kennicutt RC, Zaritsky DF. High chemical abundances in H I deficient spirals of the virgo cluster. In Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias. Vol. 3. 1995. p. 149-152
Shields, Gregory A. ; Skillman, Evan D. ; Kennicutt, Robert C. ; Zaritsky, Dennis F. / High chemical abundances in H I deficient spirals of the virgo cluster. Revista Mexicana de Astronomia y Astrofisica: Serie de Conferencias. Vol. 3 1995. pp. 149-152
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