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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 04177naa a2200733 4500 | |
| 001 | oai:DiVA.org:su-176569 | |
| 003 | SwePub | |
| 008 | 191216s2019 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1765692 URI |
| 024 | 7 | a https://doi.org/10.3847/2041-8213/ab4dae2 DOI |
| 040 | a (SwePub)su | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a ref2 swepub-contenttype |
| 072 | 7 | a art2 swepub-publicationtype |
| 100 | 1 | a McBrien, Owen R.4 aut |
| 245 | 1 0 | a SN2018kzr :b A Rapidly Declining Transient from the Destruction of a White Dwarf |
| 264 | c 2019-10-31 | |
| 264 | 1 | b American Astronomical Society,c 2019 |
| 338 | a print2 rdacarrier | |
| 520 | a We present SN2018kzr, the fastest declining supernova-like transient, second only to the kilonova, AT2017gfo. SN2018kzr is characterized by a peak magnitude of M-r & xfffd;=& xfffd;?17.98, a peak bolometric luminosity of ?1.4 & xfffd;& x5e0;10(43) erg s(?1), and a rapid decline rate of 0.48 & xfffd;& xfffd;0.03 mag day(?1) in the r band. The bolometric luminosity evolves too quickly to be explained by pure Ni-56 heating, necessitating the inclusion of an alternative powering source. Incorporating the spin-down of a magnetized neutron star adequately describes the lightcurve and we estimate a small ejecta mass of M-ej & xfffd;=& xfffd;0.10 & xfffd;& xfffd;0.05 M. Our spectral modeling suggests the ejecta is composed of intermediate mass elements including O, Si, and Mg and trace amounts of Fe-peak elements, which disfavors a binary neutron star merger. We discuss three explosion scenarios for SN2018kzr, given the low ejecta mass, intermediate mass element composition, and high likelihood of additional powering?the core collapse of an ultra-stripped progenitor, the accretion induced collapse (AIC) of a white dwarf, and the merger of a white dwarf and neutron star. The requirement for an alternative input energy source favors either the AIC with magnetar powering or a white dwarf?neutron star merger with energy from disk wind shocks. | |
| 650 | 7 | a NATURVETENSKAPx Fysik0 (SwePub)1032 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Physical Sciences0 (SwePub)1032 hsv//eng |
| 653 | a Magnetars | |
| 653 | a Supernovae | |
| 653 | a White dwarf stars | |
| 700 | 1 | a Smartt, Stephen J.4 aut |
| 700 | 1 | a Chen, Ting-Wan4 aut |
| 700 | 1 | a Inserra, Cosimo4 aut |
| 700 | 1 | a Gillanders, James H.4 aut |
| 700 | 1 | a Sim, Stuart A.4 aut |
| 700 | 1 | a Jerkstrand, Anders4 aut |
| 700 | 1 | a Rest, Armin4 aut |
| 700 | 1 | a Valenti, Stefano4 aut |
| 700 | 1 | a Roy, Rupak4 aut |
| 700 | 1 | a Gromadzki, Mariusz4 aut |
| 700 | 1 | a Taubenberger, Stefan4 aut |
| 700 | 1 | a Flörs, Andreas4 aut |
| 700 | 1 | a Huber, Mark E.4 aut |
| 700 | 1 | a Chambers, Ken C.4 aut |
| 700 | 1 | a Gal-Yam, Avishay4 aut |
| 700 | 1 | a Young, David R.4 aut |
| 700 | 1 | a Nicholl, Matt4 aut |
| 700 | 1 | a Kankare, Erkki4 aut |
| 700 | 1 | a Smith, Ken W.4 aut |
| 700 | 1 | a Maguire, Kate4 aut |
| 700 | 1 | a Mandel, Ilya4 aut |
| 700 | 1 | a Prentice, Simon4 aut |
| 700 | 1 | a Rodríguez, Ósmar4 aut |
| 700 | 1 | a Pineda Garcia, Jonathan4 aut |
| 700 | 1 | a Gutiérrez, Claudia P.4 aut |
| 700 | 1 | a Galbany, Lluís4 aut |
| 700 | 1 | a Barbarino, Cristinau Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)4 aut0 (Swepub:su)cbarb |
| 700 | 1 | a Clark, Peter S. J.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 Kulkarni, Shrinivas R.4 aut |
| 700 | 1 | a De, Kishalay4 aut |
| 700 | 1 | a Buckley, David A. H.4 aut |
| 700 | 1 | a Rau, Arne4 aut |
| 710 | 2 | a Stockholms universitetb Institutionen för astronomi4 org |
| 773 | 0 | t Astrophysical Journal Lettersd : American Astronomical Societyg 885:1q 885:1x 2041-8205x 2041-8213 |
| 856 | 4 | u https://pureadmin.qub.ac.uk/ws/files/193766857/McBrien_2019_ApJL_885_L23.pdf |
| 856 | 4 8 | u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-176569 |
| 856 | 4 8 | u https://doi.org/10.3847/2041-8213/ab4dae |
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