Paleomagnetism and tectonics of the South Shetland Islands and the northern Antarctic Peninsula
Artículo de publicación ISI Ultraviolet, optical, and near-infrared photometry and optical spectroscopy of the broad-lined Type Ic supernova (SN) 2009bb are presented, following the flux evolution from -10 to +285 days past B-band maximum. Thanks to the very early discovery, it is possible to place...
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ftunivchile:oai:repositorio.uchile.cl:2250/125554 2023-05-15T13:41:41+02:00 Paleomagnetism and tectonics of the South Shetland Islands and the northern Antarctic Peninsula Poblete, F. Arriagada, C. Roperch, Pierrick Astudillo, N. Hervé Allamand, Francisco Kraus, S. Le Roux, Jacobus 2011 application/pdf https://doi.org/10.1016/j.epsl.2010.12.019 https://repositorio.uchile.cl/handle/2250/125554 en eng Elsevier Earth and Planetary Science Letters 302 (2011) 299–313 doi:10.1016/j.epsl.2010.12.019 https://repositorio.uchile.cl/handle/2250/125554 galaxies: individual (NGC 3278) Artículo de revista 2011 ftunivchile https://doi.org/10.1016/j.epsl.2010.12.019 2023-01-29T00:50:33Z Artículo de publicación ISI Ultraviolet, optical, and near-infrared photometry and optical spectroscopy of the broad-lined Type Ic supernova (SN) 2009bb are presented, following the flux evolution from -10 to +285 days past B-band maximum. Thanks to the very early discovery, it is possible to place tight constraints on the SN explosion epoch. The expansion velocities measured from near maximum spectra are found to be only slightly smaller than those measured from spectra of the prototype broad-lined SN 1998bw associated with GRB 980425. Fitting an analytical model to the pseudobolometric light curve of SN 2009bb suggests that 4.1 +/- 1.9M(circle dot) of material was ejected with 0.22 +/- 0.06 M(circle dot) of it being (56)Ni. The resulting kinetic energy is 1.8 +/- 0.7 x 10(52) erg. This, together with an absolute peak magnitude of M(B) = -18.36 +/- 0.44, places SN 2009bb on the energetic and luminous end of the broad-lined Type Ic (SN Ic) sequence. Detection of helium in the early time optical spectra accompanied with strong radio emission and high metallicity of its environment makes SN 2009bb a peculiar object. Similar to the case for gamma-ray bursts (GRBs), we find that the bulk explosion parameters of SN 2009bb cannot account for the copious energy coupled to relativistic ejecta, and conclude that another energy reservoir (a central engine) is required to power the radio emission. Nevertheless, the analysis of the SN 2009bb nebular spectrum suggests that the failed GRB detection is not imputable to a large angle between the line-of-sight and the GRB beamed radiation. Therefore, if a GRB was produced during the SN 2009bb explosion, it was below the threshold of the current generation of gamma-ray instruments. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula South Shetland Islands Universidad de Chile: Repositorio académico Antarctic Antarctic Peninsula South Shetland Islands Isi ENVELOPE(-38.550,-38.550,65.617,65.617) Earth and Planetary Science Letters 302 3-4 299 313 |
institution |
Open Polar |
collection |
Universidad de Chile: Repositorio académico |
op_collection_id |
ftunivchile |
language |
English |
topic |
galaxies: individual (NGC 3278) |
spellingShingle |
galaxies: individual (NGC 3278) Poblete, F. Arriagada, C. Roperch, Pierrick Astudillo, N. Hervé Allamand, Francisco Kraus, S. Le Roux, Jacobus Paleomagnetism and tectonics of the South Shetland Islands and the northern Antarctic Peninsula |
topic_facet |
galaxies: individual (NGC 3278) |
description |
Artículo de publicación ISI Ultraviolet, optical, and near-infrared photometry and optical spectroscopy of the broad-lined Type Ic supernova (SN) 2009bb are presented, following the flux evolution from -10 to +285 days past B-band maximum. Thanks to the very early discovery, it is possible to place tight constraints on the SN explosion epoch. The expansion velocities measured from near maximum spectra are found to be only slightly smaller than those measured from spectra of the prototype broad-lined SN 1998bw associated with GRB 980425. Fitting an analytical model to the pseudobolometric light curve of SN 2009bb suggests that 4.1 +/- 1.9M(circle dot) of material was ejected with 0.22 +/- 0.06 M(circle dot) of it being (56)Ni. The resulting kinetic energy is 1.8 +/- 0.7 x 10(52) erg. This, together with an absolute peak magnitude of M(B) = -18.36 +/- 0.44, places SN 2009bb on the energetic and luminous end of the broad-lined Type Ic (SN Ic) sequence. Detection of helium in the early time optical spectra accompanied with strong radio emission and high metallicity of its environment makes SN 2009bb a peculiar object. Similar to the case for gamma-ray bursts (GRBs), we find that the bulk explosion parameters of SN 2009bb cannot account for the copious energy coupled to relativistic ejecta, and conclude that another energy reservoir (a central engine) is required to power the radio emission. Nevertheless, the analysis of the SN 2009bb nebular spectrum suggests that the failed GRB detection is not imputable to a large angle between the line-of-sight and the GRB beamed radiation. Therefore, if a GRB was produced during the SN 2009bb explosion, it was below the threshold of the current generation of gamma-ray instruments. |
format |
Article in Journal/Newspaper |
author |
Poblete, F. Arriagada, C. Roperch, Pierrick Astudillo, N. Hervé Allamand, Francisco Kraus, S. Le Roux, Jacobus |
author_facet |
Poblete, F. Arriagada, C. Roperch, Pierrick Astudillo, N. Hervé Allamand, Francisco Kraus, S. Le Roux, Jacobus |
author_sort |
Poblete, F. |
title |
Paleomagnetism and tectonics of the South Shetland Islands and the northern Antarctic Peninsula |
title_short |
Paleomagnetism and tectonics of the South Shetland Islands and the northern Antarctic Peninsula |
title_full |
Paleomagnetism and tectonics of the South Shetland Islands and the northern Antarctic Peninsula |
title_fullStr |
Paleomagnetism and tectonics of the South Shetland Islands and the northern Antarctic Peninsula |
title_full_unstemmed |
Paleomagnetism and tectonics of the South Shetland Islands and the northern Antarctic Peninsula |
title_sort |
paleomagnetism and tectonics of the south shetland islands and the northern antarctic peninsula |
publisher |
Elsevier |
publishDate |
2011 |
url |
https://doi.org/10.1016/j.epsl.2010.12.019 https://repositorio.uchile.cl/handle/2250/125554 |
long_lat |
ENVELOPE(-38.550,-38.550,65.617,65.617) |
geographic |
Antarctic Antarctic Peninsula South Shetland Islands Isi |
geographic_facet |
Antarctic Antarctic Peninsula South Shetland Islands Isi |
genre |
Antarc* Antarctic Antarctic Peninsula South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula South Shetland Islands |
op_relation |
Earth and Planetary Science Letters 302 (2011) 299–313 doi:10.1016/j.epsl.2010.12.019 https://repositorio.uchile.cl/handle/2250/125554 |
op_doi |
https://doi.org/10.1016/j.epsl.2010.12.019 |
container_title |
Earth and Planetary Science Letters |
container_volume |
302 |
container_issue |
3-4 |
container_start_page |
299 |
op_container_end_page |
313 |
_version_ |
1766153846703259648 |