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- Andrews, Jennifer E. (author)
SN 2017gmr : An Energetic Type II-P Supernova with Asymmetries
- Article/chapterEnglish2019
Publisher, publication year, extent ...
- 2019-11-01
- American Astronomical Society,2019
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:su-177513
- https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-177513URI
- https://doi.org/10.3847/1538-4357/ab43e3DOI
Supplementary language notes
- Language:English
- Summary in:English
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- SwePubSwePub
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- We present high-cadence UV, optical, and near-infrared data on the luminous Type II-P supernova SN;2017gmr from hours after discovery through the first 180 days. SN;2017gmr does not show signs of narrow, high-ionization emission lines in the early optical spectra, yet the optical light-curve evolution suggests that an extra energy source from circumstellar medium (CSM) interaction must be present for at least 2 days after explosion. Modeling of the early light curve indicates a ?500 R progenitor radius, consistent with a rather compact red supergiant, and late-time luminosities indicate that up to 0.130;;0.026 M of Ni-56 are present, if the light curve is solely powered by radioactive decay, although the Ni-56 mass may be lower if CSM interaction contributes to the post-plateau luminosity. Prominent multipeaked emission lines of H? and [O i] emerge after day 154, as a result of either an asymmetric explosion or asymmetries in the CSM. The lack of narrow lines within the first 2 days of explosion in the likely presence of CSM interaction may be an example of close, dense, asymmetric CSM that is quickly enveloped by the spherical supernova ejecta.
Subject headings and genre
- NATURVETENSKAP Fysik hsv//swe
- NATURAL SCIENCES Physical Sciences hsv//eng
- Type II supernovae
- Core-collapse supernovae
- Massive stars
Added entries (persons, corporate bodies, meetings, titles ...)
- Sand, D. J. (author)
- Valenti, S. (author)
- Smith, Nathan (author)
- Dastidar, Raya (author)
- Sahu, D. K. (author)
- Misra, Kuntal (author)
- Singh, Avinash (author)
- Hiramatsu, D. (author)
- Brown, P. J. (author)
- Hosseinzadeh, G. (author)
- Wyatt, S. (author)
- Vinko, J. (author)
- Anupama, G. C. (author)
- Arcavi, I. (author)
- Ashall, Chris (author)
- Benetti, S. (author)
- Berton, Marco (author)
- Bostroem, K. A. (author)
- Bulla, MattiaStockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)mbull (author)
- Burke, J. (author)
- Chen, S. (author)
- Chomiuk, L. (author)
- Cikota, A. (author)
- Congiu, E. (author)
- Cseh, B. (author)
- Davis, Scott (author)
- Elias-Rosa, N. (author)
- Faran, T. (author)
- Fraser, Morgan (author)
- Galbany, L. (author)
- Gall, C. (author)
- Gal-Yam, A. (author)
- Gangopadhyay, Anjasha (author)
- Gromadzki, M. (author)
- Haislip, J. (author)
- Howell, D. A. (author)
- Hsiao, E. Y. (author)
- Inserra, C. (author)
- Kankare, E. (author)
- Kuncarayakti, H. (author)
- Kouprianov, V. (author)
- Kumar, Brajesh (author)
- Li, Xue (author)
- Lin, Han (author)
- Maguire, K. (author)
- Mazzali, P. (author)
- McCully, C. (author)
- Milne, P. (author)
- Mo, Jun (author)
- Morrell, N. (author)
- Nicholl, M. (author)
- Ochner, P. (author)
- Olivares, F. (author)
- Pastorello, A. (author)
- Patat, F. (author)
- Phillips, M. (author)
- Pignata, G. (author)
- Prentice, S. (author)
- Reguitti, A. (author)
- Reichart, D. E. (author)
- Rodriguez, O. (author)
- Rui, Liming (author)
- Sanwal, Pankaj (author)
- Sarneczky, K. (author)
- Shahbandeh, M. (author)
- Singh, Mridweeka (author)
- Smartt, S. (author)
- Strader, J. (author)
- Stritzinger, M. D. (author)
- Szakats, R. (author)
- Tartaglia, LeonardoStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)leta1160 (author)
- Wang, Huijuan (author)
- Wang, Lingzhi (author)
- Wang, Xiaofeng (author)
- Wheeler, J. C. (author)
- Xiang, Danfeng (author)
- Yaron, O. (author)
- Young, D. R. (author)
- Zhang, Junbo (author)
- Stockholms universitetFysikum (creator_code:org_t)
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- In:Astrophysical Journal: American Astronomical Society885:10004-637X1538-4357
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- Misra, Kuntal
- Singh, Avinash
- Hiramatsu, D.
- Brown, P. J.
- Hosseinzadeh, G.
- Wyatt, S.
- Vinko, J.
- Anupama, G. C.
- Arcavi, I.
- Ashall, Chris
- Benetti, S.
- Berton, Marco
- Bostroem, K. A.
- Bulla, Mattia
- Burke, J.
- Chen, S.
- Chomiuk, L.
- Cikota, A.
- Congiu, E.
- Cseh, B.
- Davis, Scott
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- Gall, C.
- Gal-Yam, A.
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- Gromadzki, M.
- Haislip, J.
- Howell, D. A.
- Hsiao, E. Y.
- Inserra, C.
- Kankare, E.
- Kuncarayakti, H.
- Kouprianov, V.
- Kumar, Brajesh
- Li, Xue
- Lin, Han
- Maguire, K.
- Mazzali, P.
- McCully, C.
- Milne, P.
- Mo, Jun
- Morrell, N.
- Nicholl, M.
- Ochner, P.
- Olivares, F.
- Pastorello, A.
- Patat, F.
- Phillips, M.
- Pignata, G.
- Prentice, S.
- Reguitti, A.
- Reichart, D. E.
- Rodriguez, O.
- Rui, Liming
- Sanwal, Pankaj
- Sarneczky, K.
- Shahbandeh, M.
- Singh, Mridweeka
- Smartt, S.
- Strader, J.
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- Tartaglia, Leona ...
- Wang, Huijuan
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