1. Analysis of Red Supergiants in VDBH 222
- Author
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Asa’d, Randa, Kovalev, M, Davies, B, Ivanov, VD, Rejkuba, M, Gonneau, A, Hernandez, S, Lardo, C, Bergemann, M, Asa’d, Randa [0000-0003-4861-6624], Kovalev, M [0000-0002-9975-7833], Davies, B [0000-0002-2010-2122], Ivanov, VD [0000-0002-5963-1283], Rejkuba, M [0000-0002-6577-2787], Gonneau, A [0000-0001-9091-5666], Hernandez, S [0000-0003-4857-8699], Lardo, C [0000-0002-4295-8773], Bergemann, M [0000-0002-9908-5571], Apollo - University of Cambridge Repository, Asa'D R., Kovalev M., Davies B., Ivanov V.D., Rejkuba M., Gonneau A., Hernandez S., Lardo C., and Bergemann M.
- Subjects
Chemical abundances (224) ,010504 meteorology & atmospheric sciences ,Star clusters (1567) ,Infrared ,Milky Way ,Extinction (astronomy) ,main-sequence ,globular-clusters ,Chemical abundances ,FOS: Physical sciences ,Astrophysics ,multiple stellar populations ,Galaxies and Cosmology ,01 natural sciences ,Red supergiant stars (1375) ,Red supergiant stars ,massive stars ,evolution ,0103 physical sciences ,patterns ,Red supergiant ,010303 astronomy & astrophysics ,galactic-center ,0105 earth and related environmental sciences ,Physics ,Star formation ,Astronomy and Astrophysics ,Galactic plane ,Astrophysics - Astrophysics of Galaxies ,Galaxy ,Star cluster ,5101 Astronomical Sciences ,Space and Planetary Science ,Astrophysics of Galaxies (astro-ph.GA) ,atmospheres ,Star clusters ,51 Physical Sciences ,magellanic-cloud clusters - Abstract
Recent surveys uncovered new Young Massive Clusters (YMCs) that host dozens of Red Supergiants (RSGs) in the inner Milky Way. These clusters are ideal for studying the most recent and violent star formation events in the inner Galaxy. However, due to the high extinction that affects the Galactic plane, they need to be studied through infrared (IR) spectroscopy. IR spectra of RSGs have proven to be powerful tools for obtaining chemical abundances. We present the first [Fe$/$H] measurement ($-$0.07$\pm$0.02) for the YMC VdBH 222 through analysis of its RSGs using VLT/X-shooter spectra. We find no evidence for Multiple Stellar Populations (MSPs) in this YMC, contrary to what is routinely observed in older massive clusters., Comment: 9 pages, 5 figures, Accepted for Publication in ApJ
- Published
- 2020
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