abstracts[] |
{'sha1': '7cf73db9260ab2e888c35f4196976d8c803926c1', 'content': 'Observations of many SNe Ia with the UVOT instrument on the Swift satellite\nhas revealed that there exists order to the differences in the UV-OPT colors of\nnormal SNe. We examine UV-OPT color curves for 25 SNe Ia, dividing them into 4\ngroups, finding that ~1/3 of these SNe Ia have bluer UV-OPT colors than the\nlarger group, with these "NUV-blue" SNe Ia 0.4 mag bluer than the "NUV-red" SNe\nIa in u-v. Another group of events feature colors similar to NUV-red SNe Ia in\nthe u-v to uvw1-v colors, but similar to the NUV-blue SNe Ia in the uvm2-v\ncolor. We name these events "MUV-blue". The last group initially has colors\nsimilar to NUV-red SNe Ia, but with color curves that feature more modest\nchanges than the larger NUV-red group. These "irregular" events are comprised\nof all the NUV-red events with the broadest optical peaks, which leads us to\nconsider this minor group a subset of the NUV-red group. When so separated and\nthe accounting is made for the rapid time evolution of the UV-OPT colors, we\nfind that the scatter in two NUV-OPT colors, u-v & uvw1-v, is at the level of\nthe scatter in b-v. This finding is promising for extending the cosmological\nutilization of SNe Ia into the NUV. We generate spectrophotometry of SNe Ia\nthat have been observed with HST and argue that there is a fundamental spectral\ndifference in the 2900-3500A wavelength range, a range suggested to be\ndominated by absorption from iron-peak elements. The NUV-blue SNe Ia feature\nless NUV absorption than the NUV-red SNe Ia. We show that all the NUV-blue SNe\nIa in this sample have also featured evidence of unburned carbon in optical\nspectra, whereas only one NUV-red SN Ia features that absorption line. Every\nNUV-blue event also exhibits a low gradient of the SiII 6355A absorption\nfeature, but many NUV-red events also exhibit a low gradient, perhaps\nsuggestive that NUV-blue events are a subset of the larger LVG group.', 'mimetype': 'text/plain', 'lang': 'en'}
|
container |
|
container_id |
|
contribs[] |
{'index': 0, 'creator_id': None, 'creator': None, 'raw_name': 'Peter A.Milne', 'given_name': None, 'surname': None, 'role': 'author', 'raw_affiliation': None, 'extra': None}
{'index': 1, 'creator_id': None, 'creator': None, 'raw_name': 'Peter J. Brown', 'given_name': None, 'surname': None, 'role': 'author', 'raw_affiliation': None, 'extra': None}
{'index': 2, 'creator_id': None, 'creator': None, 'raw_name': 'Peter W. A. Roming', 'given_name': None, 'surname': None, 'role': 'author', 'raw_affiliation': None, 'extra': None}
{'index': 3, 'creator_id': None, 'creator': None, 'raw_name': 'Filomena Bufano,\n Neil Gehrels', 'given_name': None, 'surname': None, 'role': 'author', 'raw_affiliation': None, 'extra': None}
|
ext_ids |
{'doi': None, 'wikidata_qid': None, 'isbn13': None, 'pmid': None, 'pmcid': None, 'core': None, 'arxiv': '1308.2703v1', 'jstor': None, 'ark': None, 'mag': None, 'doaj': None, 'dblp': None, 'oai': None, 'hdl': None}
|
files[] |
{'state': 'active', 'ident': '7s633a5i5fhoflfogcaef3mhx4', 'revision': '7f4432f7-94a5-4bd6-9429-73e2568a88fa', 'redirect': None, 'extra': None, 'edit_extra': None, 'size': 1899437, 'md5': '35a25f168294101dc32144d319182309', 'sha1': 'c07634c58a6804a29db85c6e7aad3eaf02cd445c', 'sha256': '1300ba4c7e05bfbe23783ca16a1f09c5ae68aee3f6405a12eb367283fada991a', 'urls': [{'url': 'https://arxiv.org/pdf/1308.2703v1.pdf', 'rel': 'repository'}, {'url': 'https://web.archive.org/web/20200823032329/https://arxiv.org/pdf/1308.2703v1.pdf', 'rel': 'webarchive'}], 'mimetype': 'application/pdf', 'content_scope': None, 'release_ids': ['ms3tdd7qv5hyjjssqd4lhoajwu'], 'releases': None}
|
filesets |
[]
|
issue |
|
language |
en
|
license_slug |
ARXIV-1.0
|
number |
|
original_title |
|
pages |
|
publisher |
|
refs |
[]
|
release_date |
2013-08-12
|
release_stage |
submitted
|
release_type |
article
|
release_year |
2013
|
subtitle |
|
title |
Grouping Normal Type Ia Supernovae by UV to Optical Color Differences
|
version |
v1
|
volume |
|
webcaptures |
[]
|
withdrawn_date |
|
withdrawn_status |
|
withdrawn_year |
|
work_id |
x55mpnowwnfqtfojht4ug4fvuq
|