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A new sample of red supergiants in the Inner Galaxy

Published online by Cambridge University Press:  28 July 2017

M. Messineo ,
Q. Zhu ,
D. F. Figer ,
K. M. Menten ,
V. D. Ivanov ,
R.-P. Kudritzki  and
C.-H. Rosie Chen
M. Messineo
Affiliation:
Key Laboratory for Researches in Galaxies and Cosmology, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, Anhui, 230026, China
Q. Zhu
Affiliation:
Key Laboratory for Researches in Galaxies and Cosmology, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, Anhui, 230026, China
D. F. Figer
Affiliation:
Center for Detectors, Rochester Institute of Technology, 54 Memorial Drive, Rochester, NY 14623, USA
K. M. Menten
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany
V. D. Ivanov
Affiliation:
European Southern Observatory, Karl Schwarzschild-Strasse 2, D-85748 Garching bei Munchen, Germany
R.-P. Kudritzki
Affiliation:
Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822
C.-H. Rosie Chen
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, D-53121 Bonn, Germany
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Abstract

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We carried out a pivot experiment to select distant luminous late-type stars on the basis on their 2MASS and GLIMPSE photometry. Low-resolution infrared spectra enabled us to measure the equivalent widths (EWs) of their CO band-heads at 2.293 μm, and to confirm an extraordinarily high detection rate of red supergiants (RSGs), i.e. 61% (Messineo et al. (2016)).

Keywords

Galaxy: diskstars: late-typesupergiants
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S329: The Lives and Death-Throes of Massive Stars , November 2016 , pp. 425
Copyright
Copyright © International Astronomical Union 2017 

References

Messineo, M., Menten, K. M., Churchwell, E., & Habing, H., 2012, A&A, 537, A10 Google Scholar
Messineo, M., Zhu, Q., Menten, K. M., et al. 2016, ApJL, 822, L5 CrossRefGoogle Scholar