Millimeter and Submillimeter Survey of the R Corona Australis Region
Using a combination of data from the Antarctic Submillimeter Telescope and Remote Observatory (AST/RO), the Arizona Radio Observatory Kitt Peak 12m telescope and the Arizona Radio Observatory 10m Heinrich Hertz Telescope, we have studied the most active part of the R CrA molecular cloud in multiple...
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ftcern:oai:cds.cern.ch:733472 2023-05-15T13:47:45+02:00 Millimeter and Submillimeter Survey of the R Corona Australis Region Groppi, C E Kulesa, C Walker, C Martin, C 2004 http://cds.cern.ch/record/733472 eng eng http://cds.cern.ch/record/733472 astro-ph/0405037 oai:cds.cern.ch:733472 Astrophysics and Astronomy 2004 ftcern 2018-07-28T06:41:38Z Using a combination of data from the Antarctic Submillimeter Telescope and Remote Observatory (AST/RO), the Arizona Radio Observatory Kitt Peak 12m telescope and the Arizona Radio Observatory 10m Heinrich Hertz Telescope, we have studied the most active part of the R CrA molecular cloud in multiple transitions of Carbon Monoxide, HCO$^+$ and 870\micron continuum emission. Since R CrA is nearby (130 pc), we are able to obtain physical spatial resolution as high as 0.01pc over an area of 0.16 pc$^2$, with velocity resolution finer than 1 km/s. Mass estimates of the protostar driving the mm-wave emission derived from HCO$^+$, dust continuum emission and kinematic techniques point to a young, deeply embedded protostar of $\sim$0.5-0.75 M$_\odot$, with a gaseous envelope of similar mass. A molecular outflow is driven by this source that also contains at least 0.8 M$_\odot$ of molecular gas with $\sim$0.5 L$_\odot$ of mechanical luminosity. HCO$^+$ lines show the kinematic signature of infall motions as well as bulk rotation. The source is most likely a Class 0 protostellar object not yet visible at near-IR wavelengths. With the combination of spatial and spectral resolution in our data set, we are able to disentangle the effects of infall, rotation and outflow towards this young object. Other/Unknown Material Antarc* Antarctic CERN Document Server (CDS) Antarctic The Antarctic |
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CERN Document Server (CDS) |
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English |
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Astrophysics and Astronomy |
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Astrophysics and Astronomy Groppi, C E Kulesa, C Walker, C Martin, C Millimeter and Submillimeter Survey of the R Corona Australis Region |
topic_facet |
Astrophysics and Astronomy |
description |
Using a combination of data from the Antarctic Submillimeter Telescope and Remote Observatory (AST/RO), the Arizona Radio Observatory Kitt Peak 12m telescope and the Arizona Radio Observatory 10m Heinrich Hertz Telescope, we have studied the most active part of the R CrA molecular cloud in multiple transitions of Carbon Monoxide, HCO$^+$ and 870\micron continuum emission. Since R CrA is nearby (130 pc), we are able to obtain physical spatial resolution as high as 0.01pc over an area of 0.16 pc$^2$, with velocity resolution finer than 1 km/s. Mass estimates of the protostar driving the mm-wave emission derived from HCO$^+$, dust continuum emission and kinematic techniques point to a young, deeply embedded protostar of $\sim$0.5-0.75 M$_\odot$, with a gaseous envelope of similar mass. A molecular outflow is driven by this source that also contains at least 0.8 M$_\odot$ of molecular gas with $\sim$0.5 L$_\odot$ of mechanical luminosity. HCO$^+$ lines show the kinematic signature of infall motions as well as bulk rotation. The source is most likely a Class 0 protostellar object not yet visible at near-IR wavelengths. With the combination of spatial and spectral resolution in our data set, we are able to disentangle the effects of infall, rotation and outflow towards this young object. |
author |
Groppi, C E Kulesa, C Walker, C Martin, C |
author_facet |
Groppi, C E Kulesa, C Walker, C Martin, C |
author_sort |
Groppi, C E |
title |
Millimeter and Submillimeter Survey of the R Corona Australis Region |
title_short |
Millimeter and Submillimeter Survey of the R Corona Australis Region |
title_full |
Millimeter and Submillimeter Survey of the R Corona Australis Region |
title_fullStr |
Millimeter and Submillimeter Survey of the R Corona Australis Region |
title_full_unstemmed |
Millimeter and Submillimeter Survey of the R Corona Australis Region |
title_sort |
millimeter and submillimeter survey of the r corona australis region |
publishDate |
2004 |
url |
http://cds.cern.ch/record/733472 |
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Antarctic The Antarctic |
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Antarctic The Antarctic |
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Antarc* Antarctic |
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Antarc* Antarctic |
op_relation |
http://cds.cern.ch/record/733472 astro-ph/0405037 oai:cds.cern.ch:733472 |
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1766247813393416192 |