Luminous and Variable Stars in NGC 2403 and M81
Journal Article
·
· The Astronomical Journal (Online)
We present the results of spectroscopy and multi-wavelength photometry of luminous and variable star candidates in the nearby spiral galaxies NGC 2403 and M81. We discuss specific classes of stars, the Luminous Blue Variables (LBVs), B[e] supergiants (sgB[e]), and the high-luminosity yellow hypergiants. We identify two new LBV candidates, and three sgB[e] stars in M81. We also find that some stars that were previously considered LBV candidates are actually field stars. The confirmed and candidate LBVs and sgB[e] stars together with the other confirmed members are shown on the HR Diagrams for their respective galaxies. We also present the HR Diagrams for the two “SN impostors”, V37 (SN2002kg) and V12(SN1954J) in NGC 2403 and the stars in their immediate environments.
- OSTI ID:
- 22897232
- Journal Information:
- The Astronomical Journal (Online), Journal Name: The Astronomical Journal (Online) Journal Issue: 1 Vol. 157; ISSN 1538-3881
- Country of Publication:
- United States
- Language:
- English
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