2002/07/03 by Mike Irwin, Eline Tolstoy · 3 citations
Physics and Astronomy · #Astronomy and Astrophysical Research #Brightness #Dwarf galaxy #Galaxies: Formation, Evolution, Phenomena #Galaxy #Phoenix #Radial velocity #Spectral line #Stellar, planetary, and galactic studies #Telescope #astro-ph
paper · pdf · doi:10.1046/j.1365-8711.2002.05802.x
published as Mon.Not.Roy.Astron.Soc. 336 (2002) 643 · Aceepted for publication in MNRAS
arxiv created 2002/07/03 · openalex publication_date 2002/10/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present the results of a Very Large Telescope observing programme carried out in service mode using FORS1 on ANTU in long-slit mode to determine the optical velocities of nearby low surface brightness galaxies. As part of our programme of service observations we obtained long-slit spectra of several members of the Phoenix dwarf galaxy from which we derive an optical heliocentric radial velocity of −13 ± 9 km s−1. This agrees very well with the velocity of the most promising of the H i clouds seen around Phoenix, which has a heliocentric velocity of −23 km s−1, but is significantly different from the recently published optical heliocentric velocity of Phoenix of −52 ± 6km s−1 by Gallart et al.