Muestra métricas de impacto externas asociadas a la publicación. Para mayor detalle:
Departamento Gestión de Conocimiento, Monitoreo y Prospección
Consultas o comentarios: productividad@anid.cl
Consultas o comentarios: productividad@anid.cl
Hα emission in the nebular spectrum of the Type Ia supernova ASASSN-18tb
| Indexado |
|
||||
| DOI | 10.1093/MNRAS/STZ953 | ||||
| Año | 2019 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
As part of the 100IAS survey, a program aimed to obtain nebular-phase spectra for a volume-limited and homogeneous sample of Type Ia supernovae (SNe Ia), we observed ASASSN-18tb (SN 2018fhw) at 139 d past maximum light. ASASSN-18tb was a fast-declining, sub-luminous event that fits well within the observed photometric and spectroscopic distributions of the SN Ia population. We detect a prominent H alpha emission line (L-H alpha = 2.2 +/- 0.2 x 10(38) ergs s(-1)) with FWHM approximate to 1100 km s(-1) in the nebular-phase spectrum of this SN Ia. High-luminosity H alpha emission (L-H alpha greater than or similar to 10(40) ergs s(-1)) has previously been discovered in a rare class of SNe Ia-like objects showing circum-stellar medium (CSM) interactions (SNe Ia-CSM). They predominantly belong to overluminous (M-max <-19 mag in optical) 1991T-like SNe Ia and are exclusively found in star-forming galaxies. By contrast, ASASSN-18tb is a sub-luminous SN Ia (M-B,M-max similar to-17.7mag) found in an early-type galaxy dominated by old stellar populations. We discuss possible origins for the observed hydrogen. Of the 75 SNe Ia for which we have so far obtained nebular spectra in 100IAS, no other SN shows a similar to 1000 km s(-1) H alpha emission line with comparable line luminosity as ASASSN-18tb, emphasizing the rarity of such emission in the nebular phase. Based on preliminary results from our survey, the rate for ASASSN-18tb-like nebular H alpha emission could be as high as similar to 10 per cent among sub-luminous SNe Ia.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Kollmeier, Juna | Mujer |
Observ Carnegie Inst Sci - Estados Unidos
Observatorio Las Campanas - Estados Unidos |
| 2 | Chen, P. | - |
Peking Univ - China
Peking University - China |
| 3 | Dong, Subo | - |
Peking Univ - China
Peking University - China |
| 4 | MORRELL, NIDIA IRENE | Mujer |
Observatorio Las Campanas - Chile
Las Campanas Observatory - Chile Carnegie Observ - Chile |
| 5 | Phillips, Mark M. | Hombre |
Observatorio Las Campanas - Chile
Las Campanas Observatory - Chile Carnegie Observ - Chile |
| 6 | Kushnir, Doron | Hombre |
Weizmann Inst Sci - Israel
Weizmann Institute of Science Israel - Israel |
| 7 | PRIETO-KATUNARIC, JOSE LUIS | Hombre |
Universidad Diego Portales - Chile
Instituto Milenio de Astrofísica - Chile |
| 8 | Piro, Anthony L. | Hombre |
Observ Carnegie Inst Sci - Estados Unidos
Observatorio Las Campanas - Estados Unidos |
| 9 | Simon, Joshua D. | Hombre |
Observ Carnegie Inst Sci - Estados Unidos
Observatorio Las Campanas - Estados Unidos |
| Fuente |
|---|
| FONDECYT |
| National Natural Science Foundation of China |
| National Science Foundation |
| Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro |
| Conselho Nacional de Desenvolvimento Científico e Tecnológico |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| Chinese Academy of Sciences |
| NSFC |
| Deutsche Forschungsgemeinschaft |
| Financiadora de Estudos e Projetos |
| Ministry of Education and Science of Ukraine |
| U.S. Department of Energy |
| U.S. National Science Foundation |
| Ohio State University |
| Science and Technology Facilities Council |
| Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica |
| Lawrence Berkeley National Laboratory |
| University of Portsmouth |
| University of Chicago |
| Science and Technology Facilities Council of the United Kingdom |
| University of Cambridge |
| Ministry of Economy, Trade and Industry |
| African Mathematics Millennium Science Initiative |
| University of Michigan |
| National Astronomical Observatories of China |
| Ministry of Science and Education of Spain |
| Higher Education Funding Council for England |
| National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign |
| Kavli Institute of Cosmological Physics at the University of Chicago |
| Center for Cosmology and Astro-Particle Physics at the Ohio State University |
| Mitchell Institute for Fundamental Physics and Astronomy at Texas AM University |
| Ministerio da Ciencia, Tecnologia e Inovacao |
| Argonne National Laboratory |
| University College London |
| DESBrazil Consortium |
| University of Edinburgh |
| Eidgenossische Technische Hochschule (ETH) Zurich |
| Fermi National Accelerator Laboratory |
| Institut de Ciencies de l'Espai (IEEC/CSIC) |
| Institut de Fisica d'Altes Energies |
| Ludwig-Maximilians Universitat Munchen |
| National Optical Astronomy Observatory |
| University of Nottingham |
| OzDES Membership Consortium |
| University of Pennsylvania |
| SLAC National Accelerator Laboratory |
| University of Sussex |
| Texas AM University |
| University of California at Santa Cruz |
| Stanford University |
| DES-Brazil Consortium |
| Centro de Investigaciones Energeticas |
| Medioambientales y Tecnologicas-Madrid |
| Fondo Nacional de Desarrollo CientÃfico, Tecnológico y de Innovación Tecnológica |
| National Astronomical Observatories, Chinese Academy of Sciences |
| Association of Canadian Universities for Research in Astronomy |
| Ministry of Finance |
| Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro |
| Ministry of Economy, Development, and Tourisms Millennium Science Initiative |
| Special Fund for Astronomy from the Ministry of Finance |
| Collaborating Institutions in the Dark Energy Survey |
| Conselho Nacional de Desenvolvimento CientÃfico e Tecnológico |
| University of Illinois atUrbana-Champaign |
| DES |
| Texas A and M University |
| Center for Cosmology and Astroparticle Physics, Ohio State University |
| Special Fund for Astronomy |
| Kavli Institute for Theoretical Physics, University of California, Santa Barbara |
| Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University |
| Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas |
| National Centre for Supercomputing Applications |
| Ministério da Ciência e Tecnologia |
| Ministry of Economy, Development |
| University of California, Santa Cruz |
| Eidgenössische Technische Hochschule Zürich |
| Universidade do Estado do Rio de Janeiro |
| Ministerio da Ciencia |
| Minist?rio da Ci?ncia |
| Institut de Ci?ncies de l'Espai |
| Ludwig-Maximilians Universit?t M?nchen |
| Institut de F?sica d'Altes Energies |
| Center for Advanced Study, University of Illinois at Urbana-Champaign |
| Ministero dello Sviluppo Economico |
| Ministério da Ciência, Tecnologia e Ensino Superior |
| Kavli Institute of Cosmological Physics |
| Conselho Nacional deDesenvolvimento Cient?fico e Tecnol?gico |
| Agradecimiento |
|---|
| We thank Boaz Katz for important discussions and insights as well as significant contributions to this paper. PC and SD acknowledge Project 11573003 supported by NSFC. Support for JLP is provided in part by FONDECYT through the grant 1191038 and by the Ministry of Economy, Development, and Tourisms Millennium Science Initiative through grant IC120009, awarded to The Millennium Institute of Astrophysics, MAS. This paper includes data gathered with the 6.5m Magellan Telescopes located at Las Campanas Observatory, Chile. This project used public archival data from the Dark Energy Survey (DES). Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at the University of Chicago, the Center for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro, Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and the Ministerio da Ciencia, Tecnologia e Inovacao, the Deutsche Forschungsgemeinschaft, and the Collaborating Institutions in the Dark Energy Survey. The Collaborating Institutions are the Argonne National Laboratory, the University of California at Santa Cruz, the University of Cambridge, the Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas-Madrid, the University of Chicago, the University College London, the DES-Brazil Consortium, theUniversity of Edinburgh, the Eidgenossische Technische Hochschule (ETH) Zurich, the Fermi National Accelerator Laboratory, theUniversity of Illinois atUrbana-Champaign, the Institut de Ciencies de l'Espai (IEEC/CSIC), the Institut de Fisica d'Altes Energies, the Lawrence Berkeley National Laboratory, the Ludwig-Maximilians Universitat Munchen, and the associated Excellence Cluster Universe, the University of Michigan, the National Optical Astronomy Observatory, the University of Nottingham, the Ohio State University, the OzDES Membership Consortium, the University of Pennsylvania, the University of Portsmouth, the SLAC National Accelerator Laboratory, Stanford University, the University of Sussex, and the Texas A&M University. This research uses data obtained through the Telescope Access Program (TAP), which has been funded by the National Astronomical Observatories of China, the Chinese Academy of Sciences, and the Special Fund for Astronomy from the Ministry of Finance. Based in part on observations at the Cerro Tololo Inter-American Observatory, the National Optical Astronomy Observatory, which is operated by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation. |
| We thank Boaz Katz for important discussions and insights as well as significant contributions to this paper. PC and SD acknowledge Project 11573003 supported by NSFC. Support for JLP is provided in part by FONDECYT through the grant 1191038 and by the Ministry of Economy, Development, and Tourisms Millennium Science Initiative through grant IC120009, awarded to The Millennium Institute of Astrophysics, MAS. This paper includes data gathered with the 6.5m Magellan Telescopes located at Las Campanas Observatory, Chile. This project used public archival data from the Dark Energy Survey (DES). Funding for the DES Projects has been provided by the U.S. Department of Energy, the U.S. National Science Foundation, the Ministry of Science and Education of Spain, the Science and Technology Facilities Council of the United Kingdom, the Higher Education Funding Council for England, the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign, the Kavli Institute of Cosmological Physics at theUniversity of Chicago, theCenter for Cosmology and Astro-Particle Physics at the Ohio State University, the Mitchell Institute for Fundamental Physics and Astronomy at Texas A&M University, Financiadora de Estudos e Projetos, Funda??o Carlos Chagas Filho de Amparo ? Pesquisa do Estado do Rio de Janeiro, Conselho Nacional deDesenvolvimento Cient?fico e Tecnol?gico and the Minist?rio da Ci?ncia, Tecnologia e Inova??o, the Deutsche Forschungsgemeinschaft, and the Collaborating Institutions in the Dark Energy Survey. The Collaborating Institutions are the Argonne National Laboratory, the University of California at Santa Cruz, the University of Cambridge, the Centro de Investigaciones Energ?ticas, Medioambientales y Tecnol?gicas-Madrid, the University of Chicago, the University College London, the DESBrazil Consortium, theUniversity of Edinburgh, the Eidgen?ssische Technische Hochschule (ETH) Z?rich, the Fermi National Accelerator Laboratory, theUniversity of Illinois atUrbana-Champaign, the Institut de Ci?ncies de l'Espai (IEEC/CSIC), the Institut de F?sica d'Altes Energies, the Lawrence Berkeley National Laboratory, the Ludwig-Maximilians Universit?t M?nchen, and the associated Excellence Cluster Universe, the University of Michigan, the National Optical Astronomy Observatory, the University of Nottingham, the Ohio State University, the OzDES Membership Consortium, the University of Pennsylvania, the University of Portsmouth, the SLAC National Accelerator Laboratory, Stanford University, the University of Sussex, and the Texas A&M University. This research uses data obtained through the Telescope Access Program (TAP), which has been funded by the National Astronomical Observatories of China, the Chinese Academy of Sciences, and the Special Fund for Astronomy from the Ministry of Finance. Based in part on observations at the Cerro Tololo Inter-American Observatory, the National Optical Astronomy Observatory, which is operated by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with the National Science Foundation. |
