Chandra ACIS Survey of M33 (ChASeM33): X-Ray Imaging Spectroscopy of M33SNR 21, the Brightest X-Ray Supernova Remnant in M33
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10174/5643 https://doi.org/10.1086/518397 |
Resumo: | We present and interpret new X-ray data for M33SNR 21, the brightest X-ray supernova remnant (SNR) in M33. The SNR is in seen projection against (and appears to be interacting with) the bright H II region NGC 592. Data for this source were obtained as part of the Chandra ACIS Survey of M33 (ChASeM33) Very Large Project. The nearly on-axis Chandra data resolve the SNR into a ~5'' diameter (20 pc at our assumed M33 distance of 817 ± 58 kpc) slightly elliptical shell. The shell is brighter in the east, which suggests that it is encountering higher density material in that direction. The optical emission is coextensive with the X-ray shell in the north, but extends well beyond the X-ray rim in the southwest. Modeling the X-ray spectrum with an absorbed sedov model yields a shock temperature of 0.46img1.gif keV, with an ionization timescale of net = 2.1img2.gif × 1012 cm-3 s and half-solar abundances (0.45img3.gif). Assuming Sedov dynamics gives an average preshock H density of 1.7 ± 0.3 cm-3. The dynamical age estimate is 6500 ± 600 yr, while the best-fit net value and derived ne gives 8200 ± 1700 yr; the weighted mean of the age estimates is 6700 ± 600 yr. We estimate an X-ray luminosity (0.25-4.5 keV) of (1.2 ± 0.2) × 1037 ergs s-1 (absorbed), and (1.7 ± 0.3) × 1037 ergs s-1 (unabsorbed), in good agreement with the recent XMM-Newton determination. No significant excess hard emission was detected; the luminosity lesssim1.2 × 1035 ergs s-1 (2-8 keV) for any hard point source. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Chandra ACIS Survey of M33 (ChASeM33): X-Ray Imaging Spectroscopy of M33SNR 21, the Brightest X-Ray Supernova Remnant in M33galaxies: individual ( M33)shock wavessupernova remnantsWe present and interpret new X-ray data for M33SNR 21, the brightest X-ray supernova remnant (SNR) in M33. The SNR is in seen projection against (and appears to be interacting with) the bright H II region NGC 592. Data for this source were obtained as part of the Chandra ACIS Survey of M33 (ChASeM33) Very Large Project. The nearly on-axis Chandra data resolve the SNR into a ~5'' diameter (20 pc at our assumed M33 distance of 817 ± 58 kpc) slightly elliptical shell. The shell is brighter in the east, which suggests that it is encountering higher density material in that direction. The optical emission is coextensive with the X-ray shell in the north, but extends well beyond the X-ray rim in the southwest. Modeling the X-ray spectrum with an absorbed sedov model yields a shock temperature of 0.46img1.gif keV, with an ionization timescale of net = 2.1img2.gif × 1012 cm-3 s and half-solar abundances (0.45img3.gif). Assuming Sedov dynamics gives an average preshock H density of 1.7 ± 0.3 cm-3. The dynamical age estimate is 6500 ± 600 yr, while the best-fit net value and derived ne gives 8200 ± 1700 yr; the weighted mean of the age estimates is 6700 ± 600 yr. We estimate an X-ray luminosity (0.25-4.5 keV) of (1.2 ± 0.2) × 1037 ergs s-1 (absorbed), and (1.7 ± 0.3) × 1037 ergs s-1 (unabsorbed), in good agreement with the recent XMM-Newton determination. No significant excess hard emission was detected; the luminosity lesssim1.2 × 1035 ergs s-1 (2-8 keV) for any hard point source.The University of Chicago Press/American Astronomical Society/The Astrophysical Journal2012-11-15T14:51:07Z2012-11-152007-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10174/5643http://hdl.handle.net/10174/5643https://doi.org/10.1086/518397eng663234-243The Astrophysical Journalndndndndndndndndndndndndmavillez@galaxy.lca.uevora.ptbreitschwerdt@astro.univie.ac.at343Gaetz, TerranceBlair, WilliamHughes, JohnWinkler, FrankLong, KnoxPannuti, ThomasWilliams, BenjaminEdgar, RichardGhavamian, ParvizPlucinsky, PaulSasaki, ManamiKirshner, Kirshnerde Avillez, MiguelBreitschwerdt, Dieterinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-03T18:44:39Zoai:dspace.uevora.pt:10174/5643Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:00:40.663973Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Chandra ACIS Survey of M33 (ChASeM33): X-Ray Imaging Spectroscopy of M33SNR 21, the Brightest X-Ray Supernova Remnant in M33 |
title |
Chandra ACIS Survey of M33 (ChASeM33): X-Ray Imaging Spectroscopy of M33SNR 21, the Brightest X-Ray Supernova Remnant in M33 |
spellingShingle |
Chandra ACIS Survey of M33 (ChASeM33): X-Ray Imaging Spectroscopy of M33SNR 21, the Brightest X-Ray Supernova Remnant in M33 Gaetz, Terrance galaxies: individual ( M33) shock waves supernova remnants |
title_short |
Chandra ACIS Survey of M33 (ChASeM33): X-Ray Imaging Spectroscopy of M33SNR 21, the Brightest X-Ray Supernova Remnant in M33 |
title_full |
Chandra ACIS Survey of M33 (ChASeM33): X-Ray Imaging Spectroscopy of M33SNR 21, the Brightest X-Ray Supernova Remnant in M33 |
title_fullStr |
Chandra ACIS Survey of M33 (ChASeM33): X-Ray Imaging Spectroscopy of M33SNR 21, the Brightest X-Ray Supernova Remnant in M33 |
title_full_unstemmed |
Chandra ACIS Survey of M33 (ChASeM33): X-Ray Imaging Spectroscopy of M33SNR 21, the Brightest X-Ray Supernova Remnant in M33 |
title_sort |
Chandra ACIS Survey of M33 (ChASeM33): X-Ray Imaging Spectroscopy of M33SNR 21, the Brightest X-Ray Supernova Remnant in M33 |
author |
Gaetz, Terrance |
author_facet |
Gaetz, Terrance Blair, William Hughes, John Winkler, Frank Long, Knox Pannuti, Thomas Williams, Benjamin Edgar, Richard Ghavamian, Parviz Plucinsky, Paul Sasaki, Manami Kirshner, Kirshner de Avillez, Miguel Breitschwerdt, Dieter |
author_role |
author |
author2 |
Blair, William Hughes, John Winkler, Frank Long, Knox Pannuti, Thomas Williams, Benjamin Edgar, Richard Ghavamian, Parviz Plucinsky, Paul Sasaki, Manami Kirshner, Kirshner de Avillez, Miguel Breitschwerdt, Dieter |
author2_role |
author author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Gaetz, Terrance Blair, William Hughes, John Winkler, Frank Long, Knox Pannuti, Thomas Williams, Benjamin Edgar, Richard Ghavamian, Parviz Plucinsky, Paul Sasaki, Manami Kirshner, Kirshner de Avillez, Miguel Breitschwerdt, Dieter |
dc.subject.por.fl_str_mv |
galaxies: individual ( M33) shock waves supernova remnants |
topic |
galaxies: individual ( M33) shock waves supernova remnants |
description |
We present and interpret new X-ray data for M33SNR 21, the brightest X-ray supernova remnant (SNR) in M33. The SNR is in seen projection against (and appears to be interacting with) the bright H II region NGC 592. Data for this source were obtained as part of the Chandra ACIS Survey of M33 (ChASeM33) Very Large Project. The nearly on-axis Chandra data resolve the SNR into a ~5'' diameter (20 pc at our assumed M33 distance of 817 ± 58 kpc) slightly elliptical shell. The shell is brighter in the east, which suggests that it is encountering higher density material in that direction. The optical emission is coextensive with the X-ray shell in the north, but extends well beyond the X-ray rim in the southwest. Modeling the X-ray spectrum with an absorbed sedov model yields a shock temperature of 0.46img1.gif keV, with an ionization timescale of net = 2.1img2.gif × 1012 cm-3 s and half-solar abundances (0.45img3.gif). Assuming Sedov dynamics gives an average preshock H density of 1.7 ± 0.3 cm-3. The dynamical age estimate is 6500 ± 600 yr, while the best-fit net value and derived ne gives 8200 ± 1700 yr; the weighted mean of the age estimates is 6700 ± 600 yr. We estimate an X-ray luminosity (0.25-4.5 keV) of (1.2 ± 0.2) × 1037 ergs s-1 (absorbed), and (1.7 ± 0.3) × 1037 ergs s-1 (unabsorbed), in good agreement with the recent XMM-Newton determination. No significant excess hard emission was detected; the luminosity lesssim1.2 × 1035 ergs s-1 (2-8 keV) for any hard point source. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-07-01T00:00:00Z 2012-11-15T14:51:07Z 2012-11-15 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10174/5643 http://hdl.handle.net/10174/5643 https://doi.org/10.1086/518397 |
url |
http://hdl.handle.net/10174/5643 https://doi.org/10.1086/518397 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
663 234-243 The Astrophysical Journal nd nd nd nd nd nd nd nd nd nd nd nd mavillez@galaxy.lca.uevora.pt breitschwerdt@astro.univie.ac.at 343 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
The University of Chicago Press/American Astronomical Society/The Astrophysical Journal |
publisher.none.fl_str_mv |
The University of Chicago Press/American Astronomical Society/The Astrophysical Journal |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799136489956704256 |