WFRF:(Mahabal A. A.)
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 05880naa a2200913 4500 | |
| 001 | oai:DiVA.org:su-185646 | |
| 003 | SwePub | |
| 008 | 201022s2020 | |||||||||||000 ||eng| | |
| 009 | oai:DiVA.org:kth-279410 | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1856462 URI |
| 024 | 7 | a https://doi.org/10.3847/1538-4357/ab9e052 DOI |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2794102 URI |
| 040 | a (SwePub)sud (SwePub)kth | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a Miller, A. A.u Northwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, 1800 Sherman Rd, Evanston, IL 60201 USA.;Northwestern Univ, Dept Phys & Astron, 1800 Sherman Rd, Evanston, IL 60201 USA.;Adler Planetarium, Chicago, IL 60605 USA.4 aut |
| 245 | 1 0 | a The Spectacular Ultraviolet Flash from the Peculiar Type Ia Supernova 2019yvq |
| 264 | c 2020-07-23 | |
| 264 | 1 | b American Astronomical Society,c 2020 |
| 338 | a print2 rdacarrier | |
| 500 | a QC 20200820 | |
| 520 | a Early observations of Type Ia supernovae (SNe Ia) provide essential clues for understanding the progenitor system that gave rise to the terminal thermonuclear explosion. We present exquisite observations of SN 2019yvq, the second observed SN Ia, after iPTF 14atg, to display an early flash of emission in the ultraviolet (UV) and optical. Our analysis finds that SN 2019yvq was unusual, even when ignoring the initial flash, in that it was moderately underluminous for an SN Ia ( mag at peak) yet featured very high absorption velocities ( km s−1 for Si ii λ6355 at peak). We find that many of the observational features of SN 2019yvq, aside from the flash, can be explained if the explosive yield of radioactive 56Ni is relatively low (we measure ) and it and other iron-group elements are concentrated in the innermost layers of the ejecta. To explain both the UV/optical flash and peak properties of SN 2019yvq we consider four different models: interaction between the SN ejecta and a nondegenerate companion, extended clumps of 56Ni in the outer ejecta, a double-detonation explosion, and the violent merger of two white dwarfs. Each of these models has shortcomings when compared to the observations; it is clear additional tuning is required to better match SN 2019yvq. In closing, we predict that the nebular spectra of SN 2019yvq will feature either H or He emission, if the ejecta collided with a companion, strong [Ca ii] emission, if it was a double detonation, or narrow [O i] emission, if it was due to a violent merger. | |
| 650 | 7 | a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng |
| 650 | 7 | a NATURVETENSKAPx Fysikx Astronomi, astrofysik och kosmologi0 (SwePub)103052 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Astronomy, Astrophysics and Cosmology0 (SwePub)103052 hsv//eng |
| 700 | 1 | a Magee, M. R.4 aut |
| 700 | 1 | a Polin, A.4 aut |
| 700 | 1 | a Maguire, K.4 aut |
| 700 | 1 | a Zimmerman, E.4 aut |
| 700 | 1 | a Yao, Y.4 aut |
| 700 | 1 | a Sollerman, Jesperu Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)solle |
| 700 | 1 | a Schulze, S.u CALTECH, Cahill Ctr Astrophys, 1200 E Calif Blvd, Pasadena, CA 91125 USA.4 aut |
| 700 | 1 | a Perley, D. A.4 aut |
| 700 | 1 | a Kromer, M.4 aut |
| 700 | 1 | a Dhawan, Suhailu Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)sdhaw |
| 700 | 1 | a Bulla, Mattiau KTH,Stockholms universitet,Nordiska institutet för teoretisk fysik (Nordita),Nordic Institute for Theoretical Physics NORDITA4 aut0 (Swepub:kth)u1g6gftj |
| 700 | 1 | a Andreoni, I4 aut |
| 700 | 1 | a Bellm, E. C.4 aut |
| 700 | 1 | a De, K.4 aut |
| 700 | 1 | a Dekany, R.4 aut |
| 700 | 1 | a Delacroix, A.4 aut |
| 700 | 1 | a Fremling, C.4 aut |
| 700 | 1 | a Gal-Yam, A.4 aut |
| 700 | 1 | a Goldstein, D. A.4 aut |
| 700 | 1 | a Golkhou, V. Z.4 aut |
| 700 | 1 | a Goobar, Arielu Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)ariel |
| 700 | 1 | a Graham, M. J.4 aut |
| 700 | 1 | a Irani, I.4 aut |
| 700 | 1 | a Kasliwal, M. M.4 aut |
| 700 | 1 | a Kaye, S.4 aut |
| 700 | 1 | a Kim, Y-L4 aut |
| 700 | 1 | a Laher, R. R.4 aut |
| 700 | 1 | a Mahabal, A. A.4 aut |
| 700 | 1 | a Masci, F. J.4 aut |
| 700 | 1 | a Nugent, P. E.4 aut |
| 700 | 1 | a Ofek, E.4 aut |
| 700 | 1 | a Phinney, E. S.4 aut |
| 700 | 1 | a Prentice, S. J.4 aut |
| 700 | 1 | a Riddle, R.4 aut |
| 700 | 1 | a Rigault, M.4 aut |
| 700 | 1 | a Rusholme, B.4 aut |
| 700 | 1 | a Schweyer, Tassilou Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)tasc1536 |
| 700 | 1 | a Shupe, D. L.4 aut |
| 700 | 1 | a Soumagnac, M. T.4 aut |
| 700 | 1 | a Terreran, G.4 aut |
| 700 | 1 | a Walters, R.4 aut |
| 700 | 1 | a Yan, L.4 aut |
| 700 | 1 | a Zolkower, J.4 aut |
| 700 | 1 | a Kulkarni, S. R.4 aut |
| 710 | 2 | a Northwestern Univ, Ctr Interdisciplinary Explorat & Res Astrophys CI, 1800 Sherman Rd, Evanston, IL 60201 USA.;Northwestern Univ, Dept Phys & Astron, 1800 Sherman Rd, Evanston, IL 60201 USA.;Adler Planetarium, Chicago, IL 60605 USA.b Institutionen för astronomi4 org |
| 773 | 0 | t Astrophysical Journald : American Astronomical Societyg 898:1q 898:1x 0004-637Xx 1538-4357 |
| 856 | 4 | u https://doi.org/10.3847/1538-4357/ab9e05y Fulltext |
| 856 | 4 | u https://authors.library.caltech.edu/103709/2/Miller_2020_ApJ_898_56.pdf |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-185646 |
| 856 | 4 8 | u https://doi.org/10.3847/1538-4357/ab9e05 |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279410 |
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- Miller, A. A.
- Magee, M. R.
- Polin, A.
- Maguire, K.
- Zimmerman, E.
- Yao, Y.
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- Sollerman, Jespe ...
- Schulze, S.
- Perley, D. A.
- Kromer, M.
- Dhawan, Suhail
- Bulla, Mattia
- Andreoni, I
- Bellm, E. C.
- De, K.
- Dekany, R.
- Delacroix, A.
- Fremling, C.
- Gal-Yam, A.
- Goldstein, D. A.
- Golkhou, V. Z.
- Goobar, Ariel
- Graham, M. J.
- Irani, I.
- Kasliwal, M. M.
- Kaye, S.
- Kim, Y-L
- Laher, R. R.
- Mahabal, A. A.
- Masci, F. J.
- Nugent, P. E.
- Ofek, E.
- Phinney, E. S.
- Prentice, S. J.
- Riddle, R.
- Rigault, M.
- Rusholme, B.
- Schweyer, Tassil ...
- Shupe, D. L.
- Soumagnac, M. T.
- Terreran, G.
- Walters, R.
- Yan, L.
- Zolkower, J.
- Kulkarni, S. R.
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