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dc.contributor.author
Reynoso, Estela Marta
dc.contributor.author
Cichowolski, Silvina
dc.contributor.author
Walsh, A. J.
dc.date.available
2017-06-13T18:16:57Z
dc.date.issued
2017-01
dc.identifier.citation
Reynoso, Estela Marta; Cichowolski, Silvina; Walsh, A. J.; A high resolution HI study towards the supernova remnant Puppis A and its environments; Wiley Blackwell Publishing, Inc; Monthly Notices Of The Royal Astronomical Society; 464; 3; 1-2017; 3029-3039
dc.identifier.issn
0035-8711
dc.identifier.uri
http://hdl.handle.net/11336/18116
dc.description.abstract
We observed the supernova remnant (SNR) Puppis A in the 21 cm line with the Australia Telescope Compact Array with the aim of determining the systemic velocity and, hence, the corresponding kinematic distance. For the compact, background sources in the field, we obtain absorption spectra by applying two methods: (a) subtracting profiles on- and off-source towards continuum emission, and (b) filtering short spacial frequencies in the Fourier plane to remove large scale emission. One of the brightest features to the East of the shell of Puppis A was found to be a background source, probably extragalactic. Removing the contribution from this and the previously known unrelated sources, the systemic velocity of Puppis A turns out to be limited between 8 and 12 km/s, which places this source at a distance of 1.3 +/- 0.3 kpc. From the combined images that include both single dish and interferometric data, we analyze the distribution of the interstellar hydrogen. We suggest that an ellipsoidal ring at v ~ +8 km/s could be the relic of a bubble blown by the progenitor of Puppis A, provided the distance is <1.2 kpc. The main consequences of the new systemic velocity and distance as compared with previous publications (v = +16 km/s and d = 2.2 kpc) are the absence of a dense interacting cloud to the East to explain the morphology, and the decrease of the shell size and the neutron star velocity, which are now in better agreement with statistical values.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Ism: Supernova Remnants
dc.subject
Ism: Individual Objects: Puppis A
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Interstellar Medium
dc.subject
Neutral Hydrogen
dc.subject.classification
Astronomía
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Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
A high resolution HI study towards the supernova remnant Puppis A and its environments
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-06-13T14:15:05Z
dc.journal.volume
464
dc.journal.number
3
dc.journal.pagination
3029-3039
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Reynoso, Estela Marta. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
dc.description.fil
Fil: Cichowolski, Silvina. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
dc.description.fil
Fil: Walsh, A. J.. Curtin University; Australia
dc.journal.title
Monthly Notices Of The Royal Astronomical Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/mnras/stw2219
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/464/3/3029/2454776/A-high-resolution-H-i-study-towards-the-supernova?redirectedFrom=fulltext
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.arxiv.org/abs/1609.01779


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