SN 2017dio: A Type-Ic Supernova Exploding in a Hydrogen-rich Circumstellar Medium
SN 2017dio shows both spectral characteristics of a type-Ic supernova (SN) and signs of a hydrogen-rich circumstellar medium (CSM). Prominent, narrow emission lines of H and He are superposed on the continuum. Subsequent evolution revealed that the SN ejecta are interacting with the CSM. The initial...
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| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
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| Formato: | Articulo Preprint |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/93601 https://iopscience.iop.org/article/10.3847/2041-8213/aaaa1a |
| Aporte de: |
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I19-R120-10915-93601 |
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dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Astronomía Física Ciencias Naturales Ciencias Exactas Supernovae: general Supernovae: individual (SN 2017dio) |
| spellingShingle |
Astronomía Física Ciencias Naturales Ciencias Exactas Supernovae: general Supernovae: individual (SN 2017dio) Kuncarayakti, Hanindyo Maeda, Keiichi Ashall, Christopher J. Prentice, Simon J. Mattila, Seppo Kankare, Erkki Fransson, Claes Lundqvist, Peter Pastorello, Andrea Leloudas, Giorgos Anderson, Joseph P. Benetti, Stefano Bersten, Melina Cecilia Cappellaro, Enrico Cartier, Régis Denneau, Larry Della Valle, Massimo Elias Rosa, Nancy Folatelli, Gastón Fraser, Morgan Galbany, Lluís Gall, Christa Gal-Yam, Avishay Gutiérrez, Claudia P. Hamanowicz, Aleksandra Heinze, Ari Inserra, Cosimo Kangas, Tuomas Mazzali, Paolo Melandri, Andrea Pignata, Giuliano Rest, Armin Reynolds, Thomas Roy, Rupak Smartt, Stephen J. Smith, Ken W. Sollerman, Jesper Somero, Auni Stalder, Brian Stritzinger, Maximilian Taddia, Francesco Tomasella, Lina Tonry, John Weiland, Henry Young, David R. SN 2017dio: A Type-Ic Supernova Exploding in a Hydrogen-rich Circumstellar Medium |
| topic_facet |
Astronomía Física Ciencias Naturales Ciencias Exactas Supernovae: general Supernovae: individual (SN 2017dio) |
| description |
SN 2017dio shows both spectral characteristics of a type-Ic supernova (SN) and signs of a hydrogen-rich circumstellar medium (CSM). Prominent, narrow emission lines of H and He are superposed on the continuum. Subsequent evolution revealed that the SN ejecta are interacting with the CSM. The initial SN Ic identification was confirmed by removing the CSM interaction component from the spectrum and comparing with known SNe Ic and, reversely, adding a CSM interaction component to the spectra of known SNe Ic and comparing them to SN 2017dio. Excellent agreement was obtained with both procedures, reinforcing the SN Ic classification. The light curve constrains the pre-interaction SN Ic peak absolute magnitude to be around M<sub>g</sub> = -17.6 mag. No evidence of significant extinction is found, ruling out a brighter luminosity required by an SN Ia classification. These pieces of evidence support the view that SN 2017dio is an SN Ic, and therefore the first firm case of an SN Ic with signatures of hydrogen-rich CSM in the early spectrum. The CSM is unlikely to have been shaped by steady-state stellar winds. The mass loss of the progenitor star must have been intense, M ∼ 0.02 (ϵ<sub>Hα</sub>/0.01) -1 (v<sub>wind</sub> /500 km s -1 ) (v<sub>shock</sub> /10,000 km s-1 ) -3 M☉ yr -1 , peaking at a few decades before the SN. Such a high mass-loss rate might have been experienced by the progenitor through eruptions or binary stripping. |
| format |
Articulo Preprint |
| author |
Kuncarayakti, Hanindyo Maeda, Keiichi Ashall, Christopher J. Prentice, Simon J. Mattila, Seppo Kankare, Erkki Fransson, Claes Lundqvist, Peter Pastorello, Andrea Leloudas, Giorgos Anderson, Joseph P. Benetti, Stefano Bersten, Melina Cecilia Cappellaro, Enrico Cartier, Régis Denneau, Larry Della Valle, Massimo Elias Rosa, Nancy Folatelli, Gastón Fraser, Morgan Galbany, Lluís Gall, Christa Gal-Yam, Avishay Gutiérrez, Claudia P. Hamanowicz, Aleksandra Heinze, Ari Inserra, Cosimo Kangas, Tuomas Mazzali, Paolo Melandri, Andrea Pignata, Giuliano Rest, Armin Reynolds, Thomas Roy, Rupak Smartt, Stephen J. Smith, Ken W. Sollerman, Jesper Somero, Auni Stalder, Brian Stritzinger, Maximilian Taddia, Francesco Tomasella, Lina Tonry, John Weiland, Henry Young, David R. |
| author_facet |
Kuncarayakti, Hanindyo Maeda, Keiichi Ashall, Christopher J. Prentice, Simon J. Mattila, Seppo Kankare, Erkki Fransson, Claes Lundqvist, Peter Pastorello, Andrea Leloudas, Giorgos Anderson, Joseph P. Benetti, Stefano Bersten, Melina Cecilia Cappellaro, Enrico Cartier, Régis Denneau, Larry Della Valle, Massimo Elias Rosa, Nancy Folatelli, Gastón Fraser, Morgan Galbany, Lluís Gall, Christa Gal-Yam, Avishay Gutiérrez, Claudia P. Hamanowicz, Aleksandra Heinze, Ari Inserra, Cosimo Kangas, Tuomas Mazzali, Paolo Melandri, Andrea Pignata, Giuliano Rest, Armin Reynolds, Thomas Roy, Rupak Smartt, Stephen J. Smith, Ken W. Sollerman, Jesper Somero, Auni Stalder, Brian Stritzinger, Maximilian Taddia, Francesco Tomasella, Lina Tonry, John Weiland, Henry Young, David R. |
| author_sort |
Kuncarayakti, Hanindyo |
| title |
SN 2017dio: A Type-Ic Supernova Exploding in a Hydrogen-rich Circumstellar Medium |
| title_short |
SN 2017dio: A Type-Ic Supernova Exploding in a Hydrogen-rich Circumstellar Medium |
| title_full |
SN 2017dio: A Type-Ic Supernova Exploding in a Hydrogen-rich Circumstellar Medium |
| title_fullStr |
SN 2017dio: A Type-Ic Supernova Exploding in a Hydrogen-rich Circumstellar Medium |
| title_full_unstemmed |
SN 2017dio: A Type-Ic Supernova Exploding in a Hydrogen-rich Circumstellar Medium |
| title_sort |
sn 2017dio: a type-ic supernova exploding in a hydrogen-rich circumstellar medium |
| publishDate |
2018 |
| url |
http://sedici.unlp.edu.ar/handle/10915/93601 https://iopscience.iop.org/article/10.3847/2041-8213/aaaa1a |
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