Proper motions of water masers in the star-forming region IRAS 23139+5939-Reference-Cited by-同舟云学术

Proper motions of water masers in the star-forming region IRAS 23139+5939

Published:2021-11-03 Issue:6 Volume:73 Page:1669-1680
ISSN:0004-6264
Container-title:Publications of the Astronomical Society of Japan
language:en
Short-container-title:

Author:

Trinidad Miguel A¹,Imai Hiroshi²³^ORCID,de la Fuente Eduardo⁴⁵⁶^ORCID,Toledano-Juárez Ivan⁶⁷,Masqué Joseph M¹,Rodríguez-Esnard Tatianna¹

Affiliation:

1. Departamento de Astronomía, Universidad de Guanajuato, Apartado Postal 144, 36000, Guanajuato, Guanajuato, México

2. Amanogawa Galaxy Astronomy Research Center, Graduate School of Science and Engineering, Kagoshima University, 1-21-35 Korimoto, Kagoshima, Kagoshima 890-0065, Japan

3. Center for General Education, Institute for Comprehensive Education, Kagoshima University, 1-21-30 Korimoto, Kagoshima 890-0065, Japan

4. Departamento de Física, CUCEI, Universidad de Guadalajara, Blvd. Marcelino García Barragan 1420, Olímpica, 44430, Guadalajara, Jalisco, México

5. Institute for Cosmic Ray Research (ICRR), The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8582, Japan

6. Maestría en Ciencias de Datos, CUCEA, Universidad de Guadalajara, Periférico Norte 799 Núcleo Universitario, Los Belenes, 45100 Zapopan, Jalisco, México

7. Doctorado en Ciencias Físicas, CUCEI, Universidad de Guadalajara, Blvd. Marcelino García Barragan 1420, Olímpica, 44430, Guadalajara, Jalisco, México

Abstract

Abstract We observed H2O (616→523) maser emission associated with the high-mass star-forming region IRAS 23139+5959 using the KaVA, a combination of very long baseline interferometry (VLBI) arrays between the Korean VLBI Network and the VLBI Exploration of Radio Astrometry (Japan). Through multi-epoch KaVA observations, we detected three groups of maser features, two of which coincide with those previously detected by the Karl G. Jansky Very Large Array. By determining the maser proper motions, we found that the first of maser groups exhibits an expanding motion that traces a wide-angle outflow almost along the line of sight, while the second one seems to be associated with the envelope of an H ii region. We discuss the star formation activity in IRAS 23139+5939, which may be reflected in the high variability of H2O masers associated with an outflow seen from the front.

Funder

National Astronomical Observatory of Japan

National Institutes of Natural Sciences

Korea Astronomy and Space Science Institute

JSPS

CONACYT

Kagoshima University

Institute for Cosmic Ray Research

Publisher

Oxford University Press (OUP)

Subject

Space and Planetary Science,Astronomy and Astrophysics