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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Detalles Bibliográficos
Autor principal: Reynoso, Estela Marta
Publicado: 2009
Materias:
Galaxies: abundances
ISM: submillimetre dust
Radio lines: ISM
Submillimetre
Supernovae: Kepler
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v397_n3_p1621_Gomez
http://hdl.handle.net/20.500.12110/paper_00358711_v397_n3_p1621_Gomez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00358711_v397_n3_p1621_Gomez
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spelling paper:paper_00358711_v397_n3_p1621_Gomez2023-06-08T15:01:27Z Accounting for the foreground contribution to the dust emission towards Kepler's supernova remnant Reynoso, Estela Marta Galaxies: abundances ISM: submillimetre dust Radio lines: ISM Submillimetre Supernovae: Kepler 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. 2009 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v397_n3_p1621_Gomez http://hdl.handle.net/20.500.12110/paper_00358711_v397_n3_p1621_Gomez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (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
Reynoso, Estela Marta
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.
author Reynoso, Estela Marta
author_facet Reynoso, Estela Marta
author_sort Reynoso, Estela Marta
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 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00358711_v397_n3_p1621_Gomez
http://hdl.handle.net/20.500.12110/paper_00358711_v397_n3_p1621_Gomez
work_keys_str_mv AT reynosoestelamarta accountingfortheforegroundcontributiontothedustemissiontowardskeplerssupernovaremnant
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