FAUST observations of ultraviolet sources in the direction of Coma

Noah Brosch*, Eran O. Ofek, Elhanan Almoznino, Timothy Sasseen, Michael Lampton, Stuart Bowyer

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We analyse an ultraviolet observation toward the Coma cluster by means of the FAUST shuttle-borne telescope. We detect 56 candidate sources to a signal-to-noise ratio of 6.5. Most sources have optical counterparts in existing catalogues and are stars. 10 sources with no listed counterparts were observed at the Wise Observatory. We present identifications based on low-resolution spectrophotometry, and discuss the foreground stars and the galaxies, all in the foreground of the Coma cluster. The FAUST image yields a higher fraction of hot evolved stars than either of the North Galactic Pole or the Virgo regions, analysed previously. We identify these tentatively as cooling white dwarfs in the Coma Berenices (Mel 111) open cluster.

Original languageEnglish
Pages (from-to)959-969
Number of pages11
JournalMonthly Notices of the Royal Astronomical Society
Volume295
Issue number4
DOIs
StatePublished - 21 Apr 1998

Keywords

  • Galaxies: clusters: individual: Coma
  • Open clusters and associations: individual: Coma Berenices
  • Ultraviolet: stars
  • White dwarfs

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