Optical identifications of the IRAS faint sources in the Virgo cluster area.

Details Optical identifications of the IRAS faint sources in the Virgo cluster area. Optical identifications of the IRAS faint sources in the Virgo cluster area.

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26as..115..267y&link_type=abstract

Astronomy and Astrophysics Supplement, v.115, p.267

Astronomy and Astrophysics

Astrophysics

3

Clusters Of Galaxies: Virgo Cluster, Infrared: Galaxies, Surveys

Scientific paper

This paper presents a study on the deep optical identifications of 369 IRAS faint sources in a 102 square degree area centered on the Virgo cluster. We obtained the positions and magnitudes of candidates from four UK Schmidt Telescope IIIa-J direct plates. 89 (24%) are identified as stars and 276 (75%) as galaxies. There are 4 (1%) empty fields to the plate limit of B=~22. The infrared-optical database for 193 FSC-only sources is given. Most of the IRAS galaxy sources are spirals. There are 83 IRAS galaxy sources being regarded as the cluster members by Binggeli et al. (1985). In our sample, a correlation between the luminosity ratio L_IR_/L_B_ and the infrared flux ratio F(100μm)/F(60μm) is evident. For the member galaxies, a weak correlation between L_IR_/L_B_ and L_IR_ is also found.

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