Astronomy and Astrophysics – Astrophysics – Cosmology and Extragalactic Astrophysics
Scientific paper
2012-01-05
Astronomy and Astrophysics
Astrophysics
Cosmology and Extragalactic Astrophysics
To appear in conference proceedings for "Extreme and Variable High Energy Sky 2011"
Scientific paper
Observations in the near- and mid-ultraviolet (NUV: 2000--3500$\AA$) 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 NUV-blue 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 sub-division, 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 NUV-blue groups, which will be useful towards interpretation of the gamma-ray line results from the INTEGRAL SPI campaign on SN 2011fe.
Brown Peter J.
Milne Peter A.
No associations
LandOfFree
Studying Supernovae in the Near-Ultraviolet with the NASA Swift UVOT Instrument does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Studying Supernovae in the Near-Ultraviolet with the NASA Swift UVOT Instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Studying Supernovae in the Near-Ultraviolet with the NASA Swift UVOT Instrument will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-661083