First parallax measurements toward a 6.7 GHZ methanol maser with the Australian long baseline array - Distance to G 339.884-1.259
© 2015. The American Astronomical Society. All rights reserved. We have conducted the first parallax and proper motion measurements of 6.7 GHz methanol maser emission using the Australian Long Baseline Array. The parallax of G 339.8841.259 measured from five epochs of observations is 0.48 ± 0.08 mas...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Journal Article |
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Institute of Physics Publishing
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/45977 |
| _version_ | 1848757432923193344 |
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| author | Krishnan, V. Ellingsen, S. Reid, M. Brunthaler, A. Sanna, A. McCallum, J. Reynolds, C. Bignall, H. Phillips, C. Dodson, R. Rioja, M. Caswell, J. Chen, X. Dawson, J. Fujisawa, K. Goedhart, S. Green, J. Hachisuka, K. Honma, M. Menten, K. Shen, Z. Voronkov, M. Walsh, Andrew Xu, Y. Zhang, B. Zheng, X. |
| author_facet | Krishnan, V. Ellingsen, S. Reid, M. Brunthaler, A. Sanna, A. McCallum, J. Reynolds, C. Bignall, H. Phillips, C. Dodson, R. Rioja, M. Caswell, J. Chen, X. Dawson, J. Fujisawa, K. Goedhart, S. Green, J. Hachisuka, K. Honma, M. Menten, K. Shen, Z. Voronkov, M. Walsh, Andrew Xu, Y. Zhang, B. Zheng, X. |
| author_sort | Krishnan, V. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2015. The American Astronomical Society. All rights reserved. We have conducted the first parallax and proper motion measurements of 6.7 GHz methanol maser emission using the Australian Long Baseline Array. The parallax of G 339.8841.259 measured from five epochs of observations is 0.48 ± 0.08 mas, corresponding to a distance of - 2.1+0.4 -0.3 kpc, placing it in the Scutum spiral arm. This is consistent (within the combined uncertainty) with the kinematic distance estimate for this source at 2.5 ± 0.5 kpc using the latest Solar and Galactic rotation parameters. We find from the Lyman continuum photon flux that the embedded core of the young star is of spectral type B1, demonstrating that luminous 6.7 GHz methanol masers can be associated with high-mass stars toward the lower end of the mass range. |
| first_indexed | 2025-11-14T09:28:00Z |
| format | Journal Article |
| id | curtin-20.500.11937-45977 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:28:00Z |
| publishDate | 2015 |
| publisher | Institute of Physics Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-459772017-09-13T15:05:24Z First parallax measurements toward a 6.7 GHZ methanol maser with the Australian long baseline array - Distance to G 339.884-1.259 Krishnan, V. Ellingsen, S. Reid, M. Brunthaler, A. Sanna, A. McCallum, J. Reynolds, C. Bignall, H. Phillips, C. Dodson, R. Rioja, M. Caswell, J. Chen, X. Dawson, J. Fujisawa, K. Goedhart, S. Green, J. Hachisuka, K. Honma, M. Menten, K. Shen, Z. Voronkov, M. Walsh, Andrew Xu, Y. Zhang, B. Zheng, X. © 2015. The American Astronomical Society. All rights reserved. We have conducted the first parallax and proper motion measurements of 6.7 GHz methanol maser emission using the Australian Long Baseline Array. The parallax of G 339.8841.259 measured from five epochs of observations is 0.48 ± 0.08 mas, corresponding to a distance of - 2.1+0.4 -0.3 kpc, placing it in the Scutum spiral arm. This is consistent (within the combined uncertainty) with the kinematic distance estimate for this source at 2.5 ± 0.5 kpc using the latest Solar and Galactic rotation parameters. We find from the Lyman continuum photon flux that the embedded core of the young star is of spectral type B1, demonstrating that luminous 6.7 GHz methanol masers can be associated with high-mass stars toward the lower end of the mass range. 2015 Journal Article http://hdl.handle.net/20.500.11937/45977 10.1088/0004-637X/805/2/129 Institute of Physics Publishing fulltext |
| spellingShingle | Krishnan, V. Ellingsen, S. Reid, M. Brunthaler, A. Sanna, A. McCallum, J. Reynolds, C. Bignall, H. Phillips, C. Dodson, R. Rioja, M. Caswell, J. Chen, X. Dawson, J. Fujisawa, K. Goedhart, S. Green, J. Hachisuka, K. Honma, M. Menten, K. Shen, Z. Voronkov, M. Walsh, Andrew Xu, Y. Zhang, B. Zheng, X. First parallax measurements toward a 6.7 GHZ methanol maser with the Australian long baseline array - Distance to G 339.884-1.259 |
| title | First parallax measurements toward a 6.7 GHZ methanol maser with the Australian long baseline array - Distance to G 339.884-1.259 |
| title_full | First parallax measurements toward a 6.7 GHZ methanol maser with the Australian long baseline array - Distance to G 339.884-1.259 |
| title_fullStr | First parallax measurements toward a 6.7 GHZ methanol maser with the Australian long baseline array - Distance to G 339.884-1.259 |
| title_full_unstemmed | First parallax measurements toward a 6.7 GHZ methanol maser with the Australian long baseline array - Distance to G 339.884-1.259 |
| title_short | First parallax measurements toward a 6.7 GHZ methanol maser with the Australian long baseline array - Distance to G 339.884-1.259 |
| title_sort | first parallax measurements toward a 6.7 ghz methanol maser with the australian long baseline array - distance to g 339.884-1.259 |
| url | http://hdl.handle.net/20.500.11937/45977 |