Radio and IR study of the massive star-forming region IRAS 16353-4636
Context. With the latest infrared surveys, the number of massive protostellar candidates has increased significantly. New studies have posed additional questions on important issues about the formation, evolution, and other phenomena related to them. Complementary to infrared data, radio observation...
Guardado en:
| Autores principales: | , , , , , , , , |
|---|---|
| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2010
|
| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/82542 |
| Aporte de: |
| id |
I19-R120-10915-82542 |
|---|---|
| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Astronómicas radiation mechanisms: non-thermal radio continuum: stars stars: early-type |
| spellingShingle |
Ciencias Astronómicas radiation mechanisms: non-thermal radio continuum: stars stars: early-type Benaglia, Paula Ribó, M. Combi, Jorge Ariel Romero, Gustavo Esteban Chaty, S. Koribalski, B. Mirabel Miquele, Igor Félix Rodríguez, L. F. Bosch, Guillermo Luis Radio and IR study of the massive star-forming region IRAS 16353-4636 |
| topic_facet |
Ciencias Astronómicas radiation mechanisms: non-thermal radio continuum: stars stars: early-type |
| description |
Context. With the latest infrared surveys, the number of massive protostellar candidates has increased significantly. New studies have posed additional questions on important issues about the formation, evolution, and other phenomena related to them. Complementary to infrared data, radio observations are a good tool to study the nature of these objects, and to diagnose the formation stage. Aims. Here we study the far-infrared source IRAS 16353-4636 with the aim of understanding its nature and origin. In particular, we search for young stellar objects (YSOs), possible outflow structure, and the presence of non-thermal emission. Methods. Using high-resolution, multi-wavelength radio continuum data obtained with the Australia Telescope Compact Array [The Australia Telescope Compact Array is funded by the Commonwealth of Australia for operation as a National Facility by CSIRO.],* we image IRAS 16353-4636 and its environment from 1.4 to 19.6 GHz, and derive the distribution of the spectral index at maximum angular resolution. We also present new JHKs photometry and spectroscopy data obtained at ESO NTT [Based on observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere, Chile (ESO Programme 073.D-0339, PI S. Chaty).].** 13CO and archival $\ion{H}{i}$ line data, and infrared databases (MSX, GLIMPSE, MIPSGal) are also inspected. Results. The radio continuum emission associated with IRAS 16353-4636 was found to be extended (∼10 arcsec), with a bow-shaped morphology above 4.8 GHz, and a strong peak persistent at all frequencies. The NIR photometry led us to identify ten near-IR sources and classify them according to their color. We used the Hi line data to derive the source distance, and analyzed the kinematical information from the CO and NIR lines detected. Conclusions. We have identified the source IRAS 16353-4636 as a new protostellar cluster. In this cluster we recognized three distinct sources: a low-mass YSO, a high-mass YSO, and a mildly confined region of intense and non-thermal radio emission. We propose the latter corresponds to the terminal part of an outflow. |
| format |
Articulo Articulo |
| author |
Benaglia, Paula Ribó, M. Combi, Jorge Ariel Romero, Gustavo Esteban Chaty, S. Koribalski, B. Mirabel Miquele, Igor Félix Rodríguez, L. F. Bosch, Guillermo Luis |
| author_facet |
Benaglia, Paula Ribó, M. Combi, Jorge Ariel Romero, Gustavo Esteban Chaty, S. Koribalski, B. Mirabel Miquele, Igor Félix Rodríguez, L. F. Bosch, Guillermo Luis |
| author_sort |
Benaglia, Paula |
| title |
Radio and IR study of the massive star-forming region IRAS 16353-4636 |
| title_short |
Radio and IR study of the massive star-forming region IRAS 16353-4636 |
| title_full |
Radio and IR study of the massive star-forming region IRAS 16353-4636 |
| title_fullStr |
Radio and IR study of the massive star-forming region IRAS 16353-4636 |
| title_full_unstemmed |
Radio and IR study of the massive star-forming region IRAS 16353-4636 |
| title_sort |
radio and ir study of the massive star-forming region iras 16353-4636 |
| publishDate |
2010 |
| url |
http://sedici.unlp.edu.ar/handle/10915/82542 |
| work_keys_str_mv |
AT benagliapaula radioandirstudyofthemassivestarformingregioniras163534636 AT ribom radioandirstudyofthemassivestarformingregioniras163534636 AT combijorgeariel radioandirstudyofthemassivestarformingregioniras163534636 AT romerogustavoesteban radioandirstudyofthemassivestarformingregioniras163534636 AT chatys radioandirstudyofthemassivestarformingregioniras163534636 AT koribalskib radioandirstudyofthemassivestarformingregioniras163534636 AT mirabelmiqueleigorfelix radioandirstudyofthemassivestarformingregioniras163534636 AT rodriguezlf radioandirstudyofthemassivestarformingregioniras163534636 AT boschguillermoluis radioandirstudyofthemassivestarformingregioniras163534636 |
| bdutipo_str |
Repositorios |
| _version_ |
1764820488385724418 |