THE PROGENITOR MASS OF SN 2011dh FROM STELLAR POPULATION ANALYSIS
Jeremiah W. Murphy,Zachary G. Jennings,Benjamin F. Williams,Julianne J. Dalcanton,Andrew E. Dolphin +4 more
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In this article, the age of the stellar association in the vicinity of supernova 2011dh and use it to infer the zero-age main-sequence mass (M ZAMS) of the progenitor star.Abstract:
Using Hubble Space Telescope photometry, we characterize the age of the stellar association in the vicinity of supernova (SN) 2011dh and use it to infer the zero-age main-sequence mass (M ZAMS) of the progenitor star. We find two distinct and significant star formation (SF) events with ages of 29 and 13+2 ? 1 M ?, respectively. These two bursts represent 18+4 ? 9% (young) and 64+10 ? 14% (old) of the total SF in the last 50?Myr. Adopting these fractions as probabilities suggests that the most probable M ZAMS is 13+2 ? 1 M ?. These results are most sensitive to the luminosity function along the well-understood main sequence (MS) and are less sensitive to uncertain late-stage stellar evolution. Therefore, they stand even if the progenitor suffered disruptive post-MS evolution (e.g., eruptive mass loss or binary Roche-lobe overflow). Progenitor identification will help to further constrain the appropriate population. Even though pre-explosion images show a yellow supergiant (YSG) at the site of the SN, panchromatic SN light curves suggest a more compact star as the progenitor. In spite of this, our results suggest an association between the YSG and the SN. Not only was the star located at the SN site, but reinforcing an association, the star's bolometric luminosity is consistent with the final evolutionary stage of the 17?Myr old starburst. If the YSG disappears, then M ZAMS = 13+2 ? 1 M ?, but if it persists, then our results allow the possibility that the progenitor was an unseen star of >29 M ?.read more
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Journal ArticleDOI
The type IIB supernova 2011DH from a supergiant progenitor
Melina C. Bersten,Omar Gustavo Benvenuto,Ken'ichi Nomoto,Mattias Ergon,Gastón Folatelli,Jesper Sollerman,Stefano Benetti,Maria Teresa Botticella,Morgan Fraser,Rubina Kotak,Keiichi Maeda,P. Ochner,L. Tomasella +12 more
TL;DR: In this article, a set of hydrodynamical models based on stellar evolutionary progenitors is used to study the nature of SN 2011dh, and it is shown that a large progenitor star with R {approx} 200 R{sub Sun }-is needed to reproduce the early light curve (LC) of SN2011dh.
Journal ArticleDOI
Legacy extragalactic UV survey (LEGUS) with the hubble space telescope. I. Survey description
Daniela Calzetti,J. C. Lee,J. C. Lee,Elena Sabbi,Angela Adamo,Linda J. Smith,Jennifer E. Andrews,Jennifer E. Andrews,Leonardo Ubeda,S. N. Bright,David A. Thilker,Alessandra Aloisi,Thomas M. Brown,Rupali Chandar,Carol Christian,Michele Cignoni,Geoffrey C. Clayton,R. da Silva,S. E. de Mink,S. E. de Mink,S. E. de Mink,Clare Dobbs,Bruce G. Elmegreen,Debra Meloy Elmegreen,Aaron S. Evans,Aaron S. Evans,Michele Fumagalli,Michele Fumagalli,John S. Gallagher,Dimitrios A. Gouliermis,Dimitrios A. Gouliermis,Eva K. Grebel,A. Herrero,A. Herrero,Deidre A. Hunter,K. E. Johnson,Robert C. Kennicutt,Hwihyun Kim,Hwihyun Kim,Mark R. Krumholz,D. J. Lennon,K. Levay,Crystal L. Martin,P. Nair,Antonella Nota,Göran Östlin,Anne Pellerin,J. L. Prieto,Michael W. Regan,J. E. Ryon,Daniel Schaerer,David Schiminovich,Monica Tosi,S. D. Van Dyk,Rene A. M. Walterbos,B. C. Whitmore,Aida Wofford +56 more
TL;DR: The Legacy ExtraGalactic UV Survey (LEGUS) as discussed by the authors is a Cycle 21 Treasury program on the Hubble Space Telescope aimed at the investigation of star formation and its relation with galactic environment in nearby galaxies, from the scales of individual stars to those of ~kiloparsec-size clustered structures.
Journal ArticleDOI
Delay-time distribution of core-collapse supernovae with late events resulting from binary interaction
Emmanouil Zapartas,S. E. de Mink,Robert G. Izzard,Sung-Chul Yoon,Carles Badenes,Y. Götberg,A. de Koter,A. de Koter,Coenraad J. Neijssel,Mathieu Renzo,A. Schootemeijer,Tushar Shrotriya +11 more
TL;DR: In this article, a population synthesis study was conducted to compute the delay-time distribution of core-collapse supernovae, that is, the supernova rate versus time following a starburst, taking into account binary interactions.
Journal ArticleDOI
Optical and near-infrared observations of SN 2011dh – The first 100 days
Mattias Ergon,Jesper Sollerman,Morgan Fraser,A. Pastorello,S. Taubenberger,Nancy Elias-Rosa,Melina C. Bersten,Anders Jerkstrand,Stefano Benetti,M. T. Botticella,Claes Fransson,Avet Harutyunyan,Rubina Kotak,Stephen Smartt,Stefano Valenti,Filomena Bufano,Filomena Bufano,Enrico Cappellaro,M. Fiaschi,A. Howell,Erkki Kankare,L. Magill,Seppo Mattila,Justyn R. Maund,R. Naves,P. Ochner,J. Ruiz,K. W. Smith,L. Tomasella,Massimo Turatto +29 more
TL;DR: In this paper, the authors present optical and near-infrared (NIR) photometry and spectroscopy of the Type IIb supernova 2011dh for the first 100 days.
Journal ArticleDOI
The Type IIb Supernova 2013df and its Cool Supergiant Progenitor
Schuyler D. Van Dyk,WeiKang Zheng,Ori D. Fox,S. Bradley Cenko,Kelsey I. Clubb,Alexei V. Filippenko,Ryan J. Foley,Ryan J. Foley,Adam A. Miller,Nathan Smith,Patrick L. Kelly,William H. Lee,Sagi Ben-Ami,Avishay Gal-Yam +13 more
TL;DR: In this paper, an early-time photometry and spectroscopy of supernova (SN) 2013df in NGC 4414 has been obtained, with notable similarities to SN 1993J.
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