A not so massive cluster hosting a very massive star
S. Ram\'irez Alegr\'ia (1,2), A.-N. Chen\'e (3), J. Borissova (1,2),, R. Kurtev (1,2), C. Navarro (1,2), M. Kuhn (2), J. A. Carballo-Bello (1,2), ((1) Millennium Institute of Astrophysics, Santiago, Chile (2) Instituto de, Astronom\'ia, Universidad de Valpara\'iso
TL;DR
This paper characterizes the young open cluster VVV CL041 and its very massive star candidate WR62-2, revealing its high luminosity and mass through spectroscopic analysis and modeling.
Contribution
It provides the first physical characterization of VVV CL041 and confirms WR62-2 as a very luminous and massive star using near-infrared spectroscopy and modeling.
Findings
WR62-2 is a very luminous star with 10^6.4 solar luminosities.
WR62-2 has an estimated mass of approximately 80 solar masses.
The cluster VVV CL041 is a young open cluster with a notable massive star.
Abstract
We present the first physical characterization of the young open cluster VVV CL041. We spectroscopically observed the cluster main-sequence stellar population and a very-massive star candidate: WR62-2. CMFGEN modeling to our near-infrared spectra indicates that WR62-2 is a very luminous (10) and massive () star.
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Taxonomy
TopicsStellar, planetary, and galactic studies · Astronomy and Astrophysical Research · Astrophysics and Star Formation Studies