VLT/X-shooter observations of PHL293B Virtual Observatory Resource

Authors

1. Izotov Y.I.
2. Guseva N.G.
3. Fricke K.J.
4. Henkel C.

Published by

CDS

Abstract

We present VLT/X-shooter spectroscopic observations in the wavelength range {lambda}{lambda}3000-23000{AA} of the extremely metal-deficient blue compact dwarf (BCD) galaxy PHL 293B containing a luminous blue variable (LBV) star and compare them with previous data. This BCD is one of the two lowest-metallicity galaxies where LBV stars were detected, allowing us to study the LBV phenomenon in the extremely low metallicity regime. We determine abundances of nitrogen, oxygen, neon, sulfur, argon, and iron by analyzing the fluxes of narrow components of the emission lines using empirical methods and study the properties of the LBV from the fluxes and widths of broad emission lines.

Keywords

1. galaxies
2. spectroscopy
3. ultraviolet-astronomy
4. infrared-astronomy

Bibliographic source Bibcode

2011A&A...533A..25I

See also HTML

https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/533/A25

IVOA Identifier IVOID

ivo://CDS.VizieR/J/A+A/533/A25

Document Object Identifer DOI

doi:10.26093/cds/vizier.35330025

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