Multi-Epoch BVRI Photometry of Luminous Stars in M31 and M33

Abstract

We present the first four years of BVRI photometry from an on-going survey to annually monitor the photometric behavior of evolved luminous stars in M31 and M33. Photometry was measured for 199 stars at multiple epochs, including 9 classic Luminous Blue Variables (LBVs), 22 LBV candidates, 10 post-RGB A/F type hypergiants, and 18 B[e] supergiants. At all epochs the brightness is measured in V and at least one other band to a precision of 0.04 -- 0.10 magnitudes down to a limiting magnitude of 19.0 -- 19.5. Thirty three (33) stars in our survey exhibit significant variability, including at least two classic LBVs caught in S Doradus type outbursts. A hyper-linked version of the photometry catalog is at: http://go.uis.edu/m31m33photcat/.

22 pages, 7 tables, 5 figures, accepted for publication in Astronomical Journal

References in corpus (6)

• A Survey of Local Group Galaxies Currently Forming Stars. I. UBVRI Photometry of Stars in M31 and M33
• Deep CFHT Photometric Survey of the Entire M33 Galaxy I: Catalogue of 36000 Variable Point Sources
• Luminous and Variable Stars in M31 and M33. II. Luminous Blue Variables, Candidate LBVs, Fe II Emission Line Stars, and Other Supergiants
• Luminous and Variable Stars in M31 and M33. IV. Luminous Blue Variables, Candidate LBVs, and the B[e] Supergiants; How to Tell Them Apart
• Properties of M31. IV: Candidate Luminous Blue Variables from PAndromeda
• A New Luminous Blue Variable in M31

Cited by in corpus (6)

• A machine-learning photometric classifier for massive stars in nearby galaxies I. The method
• Discovering new B[e] supergiants and candidate Luminous Blue Variables in nearby galaxies
• Photometric and spectroscopic analysis of LBV candidate J004341.84+411112.0 in M31
• A New LBV Candidate in M33
• A machine-learning photometric classifier for massive stars in nearby galaxies II. The catalog
• New Blue and Red Variable Stars in NGC 247