Accounting for the foreground contribution to the dust emission towards Kepler's supernova remnant
Whether or not supernovae contribute significantly to the overall dust budget is a controversial subject. Submillimetre (sub-mm) observations, sensitive to cold dust, have shown an excess at 450 and 850 μm in young remnants Cassiopeia A (Cas A) and Kepler. Some of the sub-mm emission from Cas A has...
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2009
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00358711_v397_n3_p1621_Gomez https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00358711_v397_n3_p1621_Gomez_oai |
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I28-R145-paper_00358711_v397_n3_p1621_Gomez_oai2024-08-16 Gomez, H.L. Dunne, L. Ivison, R.J. Reynoso, E.M. Thompson, M.A. Sibthorpe, B. Eales, S.A. Delaney, T.M. Maddox, S. Isaak, K. 2009 Whether or not supernovae contribute significantly to the overall dust budget is a controversial subject. Submillimetre (sub-mm) observations, sensitive to cold dust, have shown an excess at 450 and 850 μm in young remnants Cassiopeia A (Cas A) and Kepler. Some of the sub-mm emission from Cas A has been shown to be contaminated by unrelated material along the line of sight. In this paper, we explore the emission from material towards Kepler using sub-mm continuum imaging and spectroscopic observations of atomic and molecular gas, via H i, 12CO(J = 2-1) and 13CO(J = 2-1). We detect weak CO emission (peak T* A = 0.2-1 K, 1-2 km s -1 full width at half-maximum) from diffuse, optically thin gas at the locations of some of the sub-mm clumps. The contribution to the sub-mm emission from foreground molecular and atomic clouds is negligible. The revised dust mass for Kepler's remnant is 0.1-1.2 M ⊙, about half of the quoted values in the original study by Morgan et al., but still sufficient to explain the origin of dust at high redshifts. © 2009 RAS. Fil:Reynoso, E.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. application/pdf http://hdl.handle.net/20.500.12110/paper_00358711_v397_n3_p1621_Gomez info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar Mon. Not. R. Astron. Soc. 2009;397(3):1621-1632 Galaxies: abundances ISM: submillimetre dust Radio lines: ISM Submillimetre Supernovae: Kepler Accounting for the foreground contribution to the dust emission towards Kepler's supernova remnant info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00358711_v397_n3_p1621_Gomez_oai |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-145 |
| collection |
Repositorio Digital de la Universidad de Buenos Aires (UBA) |
| topic |
Galaxies: abundances ISM: submillimetre dust Radio lines: ISM Submillimetre Supernovae: Kepler |
| spellingShingle |
Galaxies: abundances ISM: submillimetre dust Radio lines: ISM Submillimetre Supernovae: Kepler Gomez, H.L. Dunne, L. Ivison, R.J. Reynoso, E.M. Thompson, M.A. Sibthorpe, B. Eales, S.A. Delaney, T.M. Maddox, S. Isaak, K. Accounting for the foreground contribution to the dust emission towards Kepler's supernova remnant |
| topic_facet |
Galaxies: abundances ISM: submillimetre dust Radio lines: ISM Submillimetre Supernovae: Kepler |
| description |
Whether or not supernovae contribute significantly to the overall dust budget is a controversial subject. Submillimetre (sub-mm) observations, sensitive to cold dust, have shown an excess at 450 and 850 μm in young remnants Cassiopeia A (Cas A) and Kepler. Some of the sub-mm emission from Cas A has been shown to be contaminated by unrelated material along the line of sight. In this paper, we explore the emission from material towards Kepler using sub-mm continuum imaging and spectroscopic observations of atomic and molecular gas, via H i, 12CO(J = 2-1) and 13CO(J = 2-1). We detect weak CO emission (peak T* A = 0.2-1 K, 1-2 km s -1 full width at half-maximum) from diffuse, optically thin gas at the locations of some of the sub-mm clumps. The contribution to the sub-mm emission from foreground molecular and atomic clouds is negligible. The revised dust mass for Kepler's remnant is 0.1-1.2 M ⊙, about half of the quoted values in the original study by Morgan et al., but still sufficient to explain the origin of dust at high redshifts. © 2009 RAS. |
| format |
Artículo Artículo publishedVersion |
| author |
Gomez, H.L. Dunne, L. Ivison, R.J. Reynoso, E.M. Thompson, M.A. Sibthorpe, B. Eales, S.A. Delaney, T.M. Maddox, S. Isaak, K. |
| author_facet |
Gomez, H.L. Dunne, L. Ivison, R.J. Reynoso, E.M. Thompson, M.A. Sibthorpe, B. Eales, S.A. Delaney, T.M. Maddox, S. Isaak, K. |
| author_sort |
Gomez, H.L. |
| title |
Accounting for the foreground contribution to the dust emission towards Kepler's supernova remnant |
| title_short |
Accounting for the foreground contribution to the dust emission towards Kepler's supernova remnant |
| title_full |
Accounting for the foreground contribution to the dust emission towards Kepler's supernova remnant |
| title_fullStr |
Accounting for the foreground contribution to the dust emission towards Kepler's supernova remnant |
| title_full_unstemmed |
Accounting for the foreground contribution to the dust emission towards Kepler's supernova remnant |
| title_sort |
accounting for the foreground contribution to the dust emission towards kepler's supernova remnant |
| publishDate |
2009 |
| url |
http://hdl.handle.net/20.500.12110/paper_00358711_v397_n3_p1621_Gomez https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&d=paper_00358711_v397_n3_p1621_Gomez_oai |
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