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2015AJ....149..152G - Astron. J., 149, 152 (2015/May-0)
The massive star population in M101. III. Spectra and photometry of the luminous and variable stars.
GRAMMER S.H., HUMPHREYS R.M. and GERKE J.
Abstract (from CDS):
We discuss moderate-resolution spectra, multicolor photometry, and light curves of 31 of the most luminous stars and variables in the giant spiral M101. The majority are intermediate A- to F-type supergiants. We present new photometry and light curves for three known ''irregular blue variables,'' V2, V4, and V9, and identify a new candidate. Their spectra and variability confirm that they are luminous blue variable (LBV) candidates and V9 may be in an LBV-like maximum light state or eruption.
Abstract Copyright: ∼
Journal keyword(s): galaxies: individual: M101 - supergiants
Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.
Simbad objects: 64
