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...
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2010
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v523_n4_p_Benaglia http://hdl.handle.net/20.500.12110/paper_00046361_v523_n4_p_Benaglia |
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paper:paper_00046361_v523_n4_p_Benaglia2023-06-08T14:27:54Z Radio and IR study of the massive star-forming region IRAS 16353-4636 radiation mechanisms: non-thermal radio continuum: stars stars: early-type Angular resolution Australia Compact arrays Far-infrared Formation stage High resolution Infrared data Line data Low-mass Massive stars Multiwavelength Near-IR New study Nonthermal Nonthermal emission Radiation mechanisms: nonthermal Radio continuum radio continuum: stars Radio emission Radio observation Southern Hemisphere Spectral indices Spectroscopy data stars: early-type Young stellar objects Angular distribution Infrared devices Light sources Optical telescopes Photometers Photometry Stars 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. © 2010 ESO. 2010 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v523_n4_p_Benaglia http://hdl.handle.net/20.500.12110/paper_00046361_v523_n4_p_Benaglia |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
radiation mechanisms: non-thermal radio continuum: stars stars: early-type Angular resolution Australia Compact arrays Far-infrared Formation stage High resolution Infrared data Line data Low-mass Massive stars Multiwavelength Near-IR New study Nonthermal Nonthermal emission Radiation mechanisms: nonthermal Radio continuum radio continuum: stars Radio emission Radio observation Southern Hemisphere Spectral indices Spectroscopy data stars: early-type Young stellar objects Angular distribution Infrared devices Light sources Optical telescopes Photometers Photometry Stars |
| spellingShingle |
radiation mechanisms: non-thermal radio continuum: stars stars: early-type Angular resolution Australia Compact arrays Far-infrared Formation stage High resolution Infrared data Line data Low-mass Massive stars Multiwavelength Near-IR New study Nonthermal Nonthermal emission Radiation mechanisms: nonthermal Radio continuum radio continuum: stars Radio emission Radio observation Southern Hemisphere Spectral indices Spectroscopy data stars: early-type Young stellar objects Angular distribution Infrared devices Light sources Optical telescopes Photometers Photometry Stars Radio and IR study of the massive star-forming region IRAS 16353-4636 |
| topic_facet |
radiation mechanisms: non-thermal radio continuum: stars stars: early-type Angular resolution Australia Compact arrays Far-infrared Formation stage High resolution Infrared data Line data Low-mass Massive stars Multiwavelength Near-IR New study Nonthermal Nonthermal emission Radiation mechanisms: nonthermal Radio continuum radio continuum: stars Radio emission Radio observation Southern Hemisphere Spectral indices Spectroscopy data stars: early-type Young stellar objects Angular distribution Infrared devices Light sources Optical telescopes Photometers Photometry Stars |
| 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. © 2010 ESO. |
| 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 |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00046361_v523_n4_p_Benaglia http://hdl.handle.net/20.500.12110/paper_00046361_v523_n4_p_Benaglia |
| _version_ |
1768546185954459648 |