Assessing the Stellar Population and the Environment of an H II Region on the Far Side of the Galaxy

Bibcode
2021ApJ...911...91C
DOI
10.3847/1538-4357/abec6f
Chené, André-Nicolas; Benjamin, Robert A.; Ramírez-Alegría, Sebastian; Borissova, Jura; Kurtev, Radostin; Moni Bidin, Christian; Mauro, Francesco; Lucas, Phil; Guo, Zhen; Smith, Leigh C.; Gonzalez-Fernandez, Carlos; Ivanov, Valentin D.; Minniti, Dante; Anderson, Loren. D.; Armentrout, William. P.; Gonzalez, Danilo; Herrero, Artemio; Peña Ramírez, Karla
Bibliographical reference

The Astrophysical Journal

Advertised on:
4
2021
Journal
The Astrophysical Journal
Number of authors
18
IAC number of authors
1
Citations
0
Refereed citations
0
Description
We have investigated the stellar and interstellar content of the distant star formation region IRAS 17591-2228 (WISE H II region GAL 007.47+0.06). It is associated with a water maser, whose parallax distance is $d={20.4}_{-2.2}^{+2.8}$ kpc, supported by independent measurements of proper motion and radial velocity. It is projected in the same direction as an extremely red (J-KS ∼ 6 mag) group of stars, and a shell of mid-infrared emission. We qualify the group of stars as a cluster candidate, VVV CL177. Its radius spans between 0'45 and 1' and contains at least two young stellar objects with an extreme extinction near ${A}_{{\rm{V}}}\sim 40$ mag. Yet more analysis will be required to determine if it is a real single cluster associated with the water maser. The 13CO emissions at the radial velocity of the maser corresponds to the mid-infrared emission. * Refers As VVV CL177.
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Projets' image
Physical properties and evolution of Massive Stars

This project aims at the searching, observation and analysis of massive stars in nearby galaxies to provide a solid empirical ground to understand their physical properties as a function of those key parameters that gobern their evolution (i.e. mass, spin, metallicity, mass loss, and binary interaction). Massive stars are central objects to

Sergio
Simón Díaz
In progress
Type
Refereed
Star clusters
Open star clusters
Young stellar objects
Stellar & Interstellar Physics (FEEI)
The Milky Way and the Local Group (MWLG)

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