TY - JOUR
T1 - Studying supernovae in the near-ultraviolet with the nasa swift UVOT instrument
AU - Milne, Peter A.
AU - Brown, P. J.
PY - 2011
Y1 - 2011
N2 - Observations in the near- and mid-ultraviolet (NUV: 2000-3500) performed with the NASA Swift UVOT instrument have revealed that optically-normal SNe Ia feature NUV-optical color evolution that can be divided into NUV-blue and NUV-red groups, with roughly one-third of the observed events exhibiting NUV-blue color curves. Combined with an apparent correlation between NUVblue events and the detection of unburned carbon in the optical spectra, the grouping might point to a fundamental difference within the normal SN Ia classfication. Recognizing the dramatic temporal evolution of the NUV-optical colors for all SNe Ia, as well as the existence of this subdivision, is important for studies that compare nearby SNe Ia with intermediate or high-z events, for the purpose of the cosmological utilization of SNe Ia. SN 2011fe is shown to be of the NUVblue groups, which will be useful towards interpretation of the gamma-ray line results from the INTEGRAL SPI campaign on SN 2011fe.
AB - Observations in the near- and mid-ultraviolet (NUV: 2000-3500) performed with the NASA Swift UVOT instrument have revealed that optically-normal SNe Ia feature NUV-optical color evolution that can be divided into NUV-blue and NUV-red groups, with roughly one-third of the observed events exhibiting NUV-blue color curves. Combined with an apparent correlation between NUVblue events and the detection of unburned carbon in the optical spectra, the grouping might point to a fundamental difference within the normal SN Ia classfication. Recognizing the dramatic temporal evolution of the NUV-optical colors for all SNe Ia, as well as the existence of this subdivision, is important for studies that compare nearby SNe Ia with intermediate or high-z events, for the purpose of the cosmological utilization of SNe Ia. SN 2011fe is shown to be of the NUVblue groups, which will be useful towards interpretation of the gamma-ray line results from the INTEGRAL SPI campaign on SN 2011fe.
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M3 - Conference article
AN - SCOPUS:84890662674
SN - 1824-8039
JO - Proceedings of Science
JF - Proceedings of Science
T2 - INTEGRAL - A Science Workshop in Sardinia: The Extreme and Variable High Energy Sky, Extremesky 2011
Y2 - 19 September 2011 through 23 September 2011
ER -