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Progenitor, environ...
Progenitor, environment, and modelling of the interacting transient AT 2016jbu (Gaia16cfr)
- Article/chapterEnglish2022
Publisher, publication year, extent ...
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2022-05-06
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Oxford University Press (OUP),2022
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:su-207105
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-207105URI
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https://doi.org/10.1093/mnras/stac1228DOI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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We present the bolometric light curve, identification and analysis of the progenitor candidate, and preliminary modelling of AT 2016jbu (Gaia16cfr). We find a progenitor consistent with a ∼ 22–25 M⊙ yellow hypergiant surrounded by a dusty circumstellar shell, in agreement with what has been previously reported. We see evidence for significant photometric variability in the progenitor, as well as strong Hα emission consistent with pre-existing circumstellar material. The age of the environment, as well as the resolved stellar population surrounding AT 2016jbu, supports a progenitor age of >10 Myr, consistent with a progenitor mass of ∼22 M⊙. A joint analysis of the velocity evolution of AT 2016jbu and the photospheric radius inferred from the bolometric light curve shows the transient is consistent with two successive outbursts/explosions. The first outburst ejected material with velocity ∼650 km s−1, while the second, more energetic event ejected material at ∼4500 km s−1. Whether the latter is the core collapse of the progenitor remains uncertain. We place a limit on the ejected 56Ni mass of <0.016 M⊙. Using the Binary Population And Spectral Synthesis (BPASS) code, we explore a wide range of possible progenitor systems and find that the majority of these are in binaries, some of which are undergoing mass transfer or common-envelope evolution immediately prior to explosion. Finally, we use the SuperNova Explosion Code (SNEC) to demonstrate that the low-energy explosions within some of these binary systems, together with sufficient circumstellar material, can reproduce the overall morphology of the light curve of AT 2016jbu.
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Fraser, M.
(author)
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Johansson, Joel,1984-Stockholms universitet,Fysikum,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)joeljo
(author)
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Pastorello, A.
(author)
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Kotak, R.
(author)
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Stevance, H. F.
(author)
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Chen, Ting-WanStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC),Max-Planck-Institut für Extraterrestrische Physik, Germany(Swepub:su)jach1916
(author)
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Eldridge, J. J.
(author)
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Bose, S.
(author)
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Brown, P. J.
(author)
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Callis, E.
(author)
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Cartier, R.
(author)
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Dennefeld, M.
(author)
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Dong, Subo
(author)
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Duffy, P.
(author)
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Elias-Rosa, N.
(author)
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Hosseinzadeh, G.
(author)
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Hsiao, E.
(author)
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Kuncarayakti, H.
(author)
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Martin-Carrillo, A.
(author)
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Monard, B.
(author)
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Pignata, G.
(author)
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Sand, D.
(author)
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Shappee, B. J.
(author)
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Smartt, S. J.
(author)
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Tucker, B. E.
(author)
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Wyrzykowski, L.
(author)
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Abbot, H.
(author)
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Benetti, S.
(author)
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Bento, J.
(author)
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Blondin, S.
(author)
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Chen, Ping
(author)
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Delgado, A.
(author)
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Galbany, L.
(author)
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Gromadzki, M.
(author)
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Gutiérrez, C. P.
(author)
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Hanlon, L.
(author)
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Harrison, D. L.
(author)
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Hiramatsu, D.
(author)
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Hodgkin, S. T.
(author)
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Holoien, T. W.-S.
(author)
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Howell, D. A.
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Inserra, C.
(author)
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Kankare, E.
(author)
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Kozłowski, S.
(author)
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Müller-Bravo, T. E.
(author)
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Maguire, K.
(author)
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McCully, C.
(author)
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Meintjes, P.
(author)
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Morrell, N.
(author)
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Nicholl, M.
(author)
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O'Neill, D.
(author)
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Pietrukowicz, P.
(author)
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Poleski, R.
(author)
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Prieto, J. L.
(author)
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Rau, A.
(author)
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Reichart, D. E.
(author)
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Schweyer, TassiloStockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)tasc1536
(author)
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Shahbandeh, M.
(author)
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Skowron, J.
(author)
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Sollerman, Jesper,1968-Stockholms universitet,Institutionen för astronomi,Oskar Klein-centrum för kosmopartikelfysik (OKC)(Swepub:su)solle
(author)
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Soszyński, I.
(author)
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Stritzinger, M. D.
(author)
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Szymański, M.
(author)
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Tartaglia, L.
(author)
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Udalski, A.
(author)
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Ulaczyk, K.
(author)
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Young, D. R.
(author)
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van Leeuwen, M.
(author)
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van Soelen, B.
(author)
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Stockholms universitetFysikum
(creator_code:org_t)
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In:Monthly notices of the Royal Astronomical Society: Oxford University Press (OUP)513:4, s. 5666-56850035-87111365-2966
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Brennan, S. J.
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Fraser, M.
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Johansson, Joel, ...
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Pastorello, A.
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Kotak, R.
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Stevance, H. F.
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Chen, Ting-Wan
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Eldridge, J. J.
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Bose, S.
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Brown, P. J.
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Callis, E.
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Cartier, R.
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Dennefeld, M.
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Dong, Subo
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Duffy, P.
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Elias-Rosa, N.
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Hosseinzadeh, G.
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Hsiao, E.
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Kuncarayakti, H.
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Martin-Carrillo, ...
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Monard, B.
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Pignata, G.
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Sand, D.
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Shappee, B. J.
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Smartt, S. J.
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Tucker, B. E.
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Wyrzykowski, L.
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Abbot, H.
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Benetti, S.
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Bento, J.
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Blondin, S.
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Chen, Ping
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Delgado, A.
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Galbany, L.
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Gromadzki, M.
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Gutiérrez, C. P.
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Hanlon, L.
-
Harrison, D. L.
-
Hiramatsu, D.
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Hodgkin, S. T.
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Holoien, T. W.-S ...
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Howell, D. A.
-
Inserra, C.
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Kankare, E.
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Kozłowski, S.
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Müller-Bravo, T. ...
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Maguire, K.
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McCully, C.
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Meintjes, P.
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Morrell, N.
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Nicholl, M.
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O'Neill, D.
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Pietrukowicz, P.
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Poleski, R.
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Prieto, J. L.
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Rau, A.
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Reichart, D. E.
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Schweyer, Tassil ...
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Shahbandeh, M.
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Skowron, J.
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Sollerman, Jespe ...
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Soszyński, I.
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Stritzinger, M. ...
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Szymański, M.
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Tartaglia, L.
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Udalski, A.
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Ulaczyk, K.
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Young, D. R.
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van Leeuwen, M.
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van Soelen, B.
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