The metallicities of UM151, UM408 and A1228+12 revisited

Abstract

We present the results of new spectrophotometry and heavy element abundance determinations for 3 dwarf galaxies UM151, UM408 and A1228+12 (RMB132). These galaxies have been claimed in the literature to have very low metallicities, corresponding to log(O/H)+12 < 7.65, that are in the metallicity range of some candidate local young galaxies. We present higher S/N data for these three galaxies. UM151 and UM408 have significantly larger metallicities: log(O/H)+12 = 8.5 and 7.93, respectively. For A1228+12 our new log(O/H)+12 = 7.73 is close to that recalculated from earlier data (7.68). Thus, the rederived metallicities allow us to remove these objects from the list of galaxies with Z < 1/20 Z_Sun.

LaTeX, 8 pages with 3 Postscript figures, A&A in press

References in corpus (6)

• New light on the search for low metallicity galaxies I. The N2 method
• The Void Phenomenon
• Oxygen abundances in dwarf irregular galaxies and the metallicity - luminosity relationship
• On the metallicities of UM 133, UM 283 and UM 382
• The Hamburg/SAO Survey for Emission--Line Galaxies. V. The Fifth List of 161 Galaxies
• The Hamburg/SAO survey for emission-line galaxies. VI. The sixth list of 126 galaxies

Cited by in corpus (15)

• The Mass-Metallicity Relation with the Direct Method on Stacked Spectra of SDSS Galaxies
• Mid Infrared Properties of Low Metallicity Blue Compact Dwarf Galaxies From Spitzer/IRS
• [CII] 158$\mu$m Emission and Metallicity in PDRs
• Strong Emission Line HII Galaxies in the Sloan Digital Sky Survey. I. Catalog of DR1 Objects with Oxygen Abundances from Te easurements
• "Counterpart" method for abundance determinations in HII regions
• Discovery of Eight New Extremely Metal--Poor Galaxies in the Sloan Digital Sky Survey
• Uncovering Additional Clues to Galaxy Evolution. II. The Environmental Impact of the Virgo Cluster on the Evolution of Dwarf Irregular Galaxies
• Luminosity-Metallicity Relations for Blue Compact Dwarf Galaxies in the Optical and Near-Infrared
• The L-sigma Relation of Local HII Galaxies
• HI study of extremely metal-deficient dwarf galaxies. I. The Nancay Radio Telescope observations of twenty-two objects
• Studies of galaxies in voids. I. HI observations of Blue Compact Galaxies
• The Hamburg/SAO survey for low metallicity blue compact/HII-galaxies (HSS-LM). I. The first list of 46 strong-lined galaxies
• On the compact HII galaxy UM 408 as seen by GMOS-IFU: Physical conditions
• Possibly interacting Vorontsov-Velyaminov galaxies. II. The 6m telescope spectroscopy of VV 080, 131, 499, 523 and 531
• A sample of metal-poor galaxies identified from the LAMOST spectral survey