Assessing the stellar population and the environment of an HII region on the far side of the Galaxy

A. -N. Chené; R. A. Benjamin; S. Ramírez Alegría; J. Borissova; R. Kurtev; C. Moni Bidin; F. Mauro; P. Lucas; Z. Guo; L. C. Smith; C. Gonzalez-Fernandez; V. D. Ivanov; D. Minniti; L. D. Anderson; W. P. Armentrout; D. Gonzalez; A. Herrero; K. Peña Ramírez

doi:10.3847/1538-4357/abec6f

Assessing the stellar population and the environment of an HII region on the far side of the Galaxy

A. -N. Chené, R. A. Benjamin, S. Ramírez Alegría, J. Borissova, R. Kurtev, C. Moni Bidin, F. Mauro, P. Lucas, Z. Guo, L. C. Smith, C. Gonzalez-Fernandez, V. D. Ivanov, D. Minniti, L. D. Anderson, W. P. Armentrout, D. Gonzalez, A. Herrero, K. Peña Ramírez

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Abstract

We have investigated the stellar and interstellar content of the distant star formation region IRAS 17591-2228 (WISE HII region GAL 007.47+0.06). It is associated to a water maser, whose parallax distance is d=20.4^{+2.8} {-2.2} 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 Av ~ 40 mag. Yet more analysis will be required to determine is 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.

Original language	English
Article number	91
Number of pages	8
Journal	The Astrophysical Journal
Volume	911
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/abec6f
Publication status	Published - 20 Apr 2021

Keywords

astro-ph.GA
astro-ph.SR

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© 2021. The American Astronomical Society. All rights reserved. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.3847/1538-4357/abec6f
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Chené, A. .-N., Benjamin, R. A., Alegría, S. R., Borissova, J., Kurtev, R., Bidin, C. M., Mauro, F., Lucas, P., Guo, Z., Smith, L. C., Gonzalez-Fernandez, C., Ivanov, V. D., Minniti, D., Anderson, L. D., Armentrout, W. P., Gonzalez, D., Herrero, A., & Ramírez, K. P. (2021). Assessing the stellar population and the environment of an HII region on the far side of the Galaxy. The Astrophysical Journal, 911(2), Article 91. https://doi.org/10.3847/1538-4357/abec6f

@article{7dacb1e4c148437591cad59add63c74f,

title = "Assessing the stellar population and the environment of an HII region on the far side of the Galaxy",

abstract = "We have investigated the stellar and interstellar content of the distant star formation region IRAS 17591-2228 (WISE HII region GAL 007.47+0.06). It is associated to a water maser, whose parallax distance is d=20.4\textasciicircum{}\{+2.8\} \{-2.2\} kpc, supported by independent measurements of proper motion and radial velocity. It is projected in the same direction as an extremely red (J-Ks \textasciitilde{} 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 Av \textasciitilde{} 40 mag. Yet more analysis will be required to determine is 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. ",

keywords = "astro-ph.GA, astro-ph.SR",

author = "Chen{\'e}, \{A. -N.\} and Benjamin, \{R. A.\} and Alegr{\'i}a, \{S. Ram{\'i}rez\} and J. Borissova and R. Kurtev and Bidin, \{C. Moni\} and F. Mauro and P. Lucas and Z. Guo and Smith, \{L. C.\} and C. Gonzalez-Fernandez and Ivanov, \{V. D.\} and D. Minniti and Anderson, \{L. D.\} and Armentrout, \{W. P.\} and D. Gonzalez and A. Herrero and Ram{\'i}rez, \{K. Pe{\~n}a\}",

note = "{\textcopyright} 2021. The American Astronomical Society. All rights reserved. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.3847/1538-4357/abec6f",

year = "2021",

month = apr,

day = "20",

doi = "10.3847/1538-4357/abec6f",

language = "English",

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Chené, A-N, Benjamin, RA, Alegría, SR, Borissova, J, Kurtev, R, Bidin, CM, Mauro, F, Lucas, P, Guo, Z, Smith, LC, Gonzalez-Fernandez, C, Ivanov, VD, Minniti, D, Anderson, LD, Armentrout, WP, Gonzalez, D, Herrero, A & Ramírez, KP 2021, 'Assessing the stellar population and the environment of an HII region on the far side of the Galaxy', The Astrophysical Journal, vol. 911, no. 2, 91. https://doi.org/10.3847/1538-4357/abec6f

TY - JOUR

T1 - Assessing the stellar population and the environment of an HII region on the far side of the Galaxy

AU - Chené, A. -N.

AU - Benjamin, R. A.

AU - Alegría, S. Ramírez

AU - Borissova, J.

AU - Kurtev, R.

AU - Bidin, C. Moni

AU - Mauro, F.

AU - Lucas, P.

AU - Guo, Z.

AU - Smith, L. C.

AU - Gonzalez-Fernandez, C.

AU - Ivanov, V. D.

AU - Minniti, D.

AU - Anderson, L. D.

AU - Armentrout, W. P.

AU - Gonzalez, D.

AU - Herrero, A.

AU - Ramírez, K. Peña

N1 - © 2021. The American Astronomical Society. All rights reserved. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.3847/1538-4357/abec6f

PY - 2021/4/20

Y1 - 2021/4/20

N2 - We have investigated the stellar and interstellar content of the distant star formation region IRAS 17591-2228 (WISE HII region GAL 007.47+0.06). It is associated to a water maser, whose parallax distance is d=20.4^{+2.8} {-2.2} 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 Av ~ 40 mag. Yet more analysis will be required to determine is 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.

AB - We have investigated the stellar and interstellar content of the distant star formation region IRAS 17591-2228 (WISE HII region GAL 007.47+0.06). It is associated to a water maser, whose parallax distance is d=20.4^{+2.8} {-2.2} 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 Av ~ 40 mag. Yet more analysis will be required to determine is 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.

KW - astro-ph.GA

KW - astro-ph.SR

U2 - 10.3847/1538-4357/abec6f

DO - 10.3847/1538-4357/abec6f

M3 - Article

SN - 0004-637X

VL - 911

JO - The Astrophysical Journal

JF - The Astrophysical Journal

IS - 2

M1 - 91

ER -

Assessing the stellar population and the environment of an HII region on the far side of the Galaxy

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Keywords

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