Dataciencia

Colección SciELO Chile

Strongly Bipolar Inner Ejecta of the Normal Type IIP Supernova ASASSN-16at

Indexado

WoS	WOS:000459993200002
Scopus	SCOPUS_ID:85063487155

DOI

10.3847/2041-8213/AB0558

Año

2019

Tipo

artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras

Abstract

We report distinctly double-peaked H alpha and H beta emission lines in the late-time, nebular-phase spectra (greater than or similar to 200 days) of the otherwise normal at early phases (less than or similar to 100 days) type IIP supernova ASASSN-16at (SN 2016X). Such distinctly double-peaked nebular Balmer lines have never been observed for a type II SN. The nebular-phase Balmer emission is driven by the radioactive Co-56 decay, so the observed line profile bifurcation suggests a strong bipolarity in the Ni-56 distribution or in the line-forming region of the inner ejecta. The strongly bifurcated blueshifted and redshifted peaks are separated by similar to 3 x 10(3) km s(-1) and are roughly symmetrically positioned with respect to the host-galaxy rest frame, implying that the inner ejecta are composed of two almost-detached blobs. The red peak progressively weakens relative to the blue peak, and disappears in the 740 days spectrum. One possible reason for the line-ratio evolution is increasing differential extinction from continuous formation of dust within the envelope, which is also supported by the near-infrared flux excess that develops after similar to 100 days.

Revista

Revista	ISSN
Astrophysical #Journal Letters	2041-8205

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Disciplinas de Investigación

WOS
Astronomy & Astrophysics

Scopus
Sin Disciplinas

SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional

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Autores - Afiliación

Ord.	Autor	Género	Institución - País
1	Bose, S.	Hombre	Peking Univ - China Peking University - China
2	Dong, Subo	-	Peking Univ - China Peking University - China
3	Elias-Rosa, Nancy	Mujer	CSIC - España IEEC - España Consejo Superior de Investigaciones Científicas - España Instituto de Estudios Espaciales de Cataluña - España CSIC - Instituto de Ciencias del Espacio (ICE) - España
4	Shappee, Benjamin	Hombre	Univ Hawaii - Estados Unidos University of Hawaii at Manoa - Estados Unidos University of Hawaiʻi at Mānoa - Estados Unidos University Hawaii Institute for Astronomy - Estados Unidos
5	Bersier, D.	Hombre	Liverpool Sci Pk - Reino Unido Astrophysics Research Institute - Reino Unido Liverpool John Moores University - Reino Unido
6	Benetti, Stefano	Hombre	Osserv Astron Padova - Italia Osservatorio Astronomico di Padova - Italia
7	Stritzinger, M. D.	Hombre	Aarhus Univ - Dinamarca Aarhus Universitet - Dinamarca
8	Grupe, Dirk	Hombre	Morehead State Univ - Estados Unidos Morehead State University - Estados Unidos
9	Kochanek, C. S.	Hombre	OHIO STATE UNIV - Estados Unidos The Ohio State University - Estados Unidos
10	PRIETO-KATUNARIC, JOSE LUIS	Hombre	Universidad Diego Portales - Chile Instituto Milenio de Astrofísica - Chile
11	Chen, P.	-	Peking Univ - China Peking University - China
12	Kuncarayakti, Hanindyo	-	Univ Turku - Finlandia Turun yliopisto - Finlandia Tuorla Observatory - Finlandia Tuorlan observatorio - Finlandia
13	Mattila, S.	Hombre	Univ Turku - Finlandia Tuorla Observatory - Finlandia Tuorlan observatorio - Finlandia
14	Morales-Garoffolo, Antonia	Mujer	UNIV CADIZ - España University of Cáidiz - España
15	MORRELL, NIDIA IRENE	Mujer	Observatorio Las Campanas - Chile Las Campanas Observatory - Chile
16	Onori, F.	Mujer	Ist Astrofis & Planetol Spaziali - Italia Istituto di Astrofisica e Planetologia Spaziali - Italia
17	Reynolds, T. M.	Hombre	Univ Turku - Finlandia Tuorla Observatory - Finlandia Tuorlan observatorio - Finlandia
18	Siviero, A.	Hombre	Univ Padua - Italia Università degli Studi di Padova - Italia
19	Somero, Auni	-	Univ Turku - Finlandia Tuorla Observatory - Finlandia Tuorlan observatorio - Finlandia
20	Stanek, K. Z.	-	OHIO STATE UNIV - Estados Unidos
21	Terreran, Giacomo	Hombre	NORTHWESTERN UNIV - Estados Unidos Northwestern University - Estados Unidos
22	Thompson, Todd A.	Hombre	OHIO STATE UNIV - Estados Unidos Inst Adv Study - Estados Unidos The Ohio State University - Estados Unidos Institute for Advanced Studies - Estados Unidos Institute for Advanced Study - Estados Unidos
23	Tomasella, Lina	Mujer	Osserv Astron Padova - Italia Osservatorio Astronomico di Padova - Italia
24	Ashall, C.	Hombre	FLORIDA STATE UNIV - Estados Unidos Florida State University - Estados Unidos College of Arts and Sciences - Estados Unidos
25	Gall, Christa	Mujer	Univ Copenhagen - Dinamarca Niels Bohr Institute - Dinamarca Niels Bohr Institutet - Dinamarca
26	Gromadzki, Mariusz	Hombre	Warsaw Univ - Polonia University of Warsaw - Polonia
27	Holoien, Thomas W. -S.	Hombre	Observatorio Las Campanas - Estados Unidos Carnegie Observ - Estados Unidos

Muestra la afiliación y género (detectado) para los co-autores de la publicación.

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Citas identificadas: Las citas provienen de documentos incluidos en la base de datos de DATACIENCIA

Citas Identificadas: 11.11 %
Citas No-identificadas: 88.89 %

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Citas identificadas: Las citas provienen de documentos incluidos en la base de datos de DATACIENCIA

Citas Identificadas: 11.11 %
Citas No-identificadas: 88.89 %

Financiamiento

Fuente
National Science Foundation
China Postdoctoral Science Foundation
European Regional Development Fund
Ministerio de Ciencia e Innovación
NSFC
NSF
Spanish MICINN
Ohio State University
Ministerio de Ciencia e InnovaciÃ³n
Gordon and Betty Moore Foundation
Mt. Cuba Astronomical Foundation
Villum Foundation
Narodowe Centrum Nauki
FEDER funds
VILLUM FONDEN
Simons Foundation
Polish National Science Centre
Institute for Advanced Study
IBM Einstein Fellowship from the Institute for Advanced Study, Princeton
Smithsonian Astrophysical Observatory
Instrument Center for Danish Astrophysics (IDA)
PRIN-INAF 2016
Center for Cosmology and Astroparticle Physics, Ohio State University
Simons Foundation Fellowship
Carlsberg Foundation funding
CCAPP at OSU
CAS-SACA
SAO
Instrument center for Danish Astrophysics
Directorate for Mathematical and Physical Sciences

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos

Agradecimiento
We thank Juna A. Kollmeier, who enabled our Magellan observations of this target during her program. We thank Andrea Pastorello for help in acquiring observational data, and Eran Ofek and Boaz Katz for useful discussions. We thank Belinda Wilkes, late Neil Gehrels, and the Swift team for Chandra DDT and Swift ToO requests. We acknowledge the SN spectral repository WISeREP (http://wiserep.weizmann.ac.il). S.B., S.D., and P.C. acknowledge NSFC Project 11573003. S.B. is partially supported by China postdoctoral science foundation grant No. 2018T110006. M.S. is supported in part by a grant (13261) from VILLUM FONDEN. D.G. acknowledges support by SAO grant #DD6-17079X. This Letter is also partially based on observations collected at the INAF Copernico 1.82m telescope and the Galileo 1.22m telescope of the University of Padova. S.B. and L.T. are partially supported by the PRIN-INAF 2016 with the project "Toward the SKA and CTA era: discovery, localization, and physics of transient sources." T.A.T. is partially supported by a Simons Foundation Fellowship and an IBM Einstein Fellowship from the Institute for Advanced Study, Princeton. N.E.R. acknowledges support from the Spanish MICINN grant ESP2017-82674-R and FEDER funds. C.G. appreciates the Carlsberg Foundation funding. M.G. is supported by the Polish National Science Centre grant OPUS 2015/17/B/ST9/03167. This research uses data obtained through TAP. This work is partly based on observations made with GTC, installed in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias (IAC). NUTS is funded in part by the Instrument center for Danish Astrophysics (IDA). ASAS-SN is supported by the Gordon and Betty Moore Foundation through grant GBMF5490 to OSU and NSF grant AST-1515927. Development of ASAS-SN has been supported by NSF grant AST-0908816, the Mt. Cuba Astronomical Foundation, CCAPP at OSU, CAS-SACA, the Villum Foundation, and George Skestos. This work is also partly based on observations made with the NOT, operated by the Nordic Optical Telescope Scientific Association at the Observatorio del Roque de los Muchachos, La Palma, Spain, of IAC. The data presented here were obtained [in part] with ALFOSC, which is provided by the Instituto de Astrofisica de Andalucia (IAA) under a joint agreement with the University of Copenhagen and NOTSA.
We thank Juna A. Kollmeier, who enabled our Magellan observations of this target during her program. We thank Andrea Pastorello for help in acquiring observational data, and Eran Ofek and Boaz Katz for useful discussions. We thank Belinda Wilkes, late Neil Gehrels, and the Swift team for Chandra DDT and Swift ToO requests. We acknowledge the SN spectral repository WISeREP (http://wiserep.weizmann.ac.il). S.B., S.D., and P.C. acknowledge NSFC Project 11573003. S.B. is partially supported by China postdoctoral science foundation grant No. 2018T110006. M.S. is supported in part by a grant (13261) from VILLUM FONDEN. D.G. acknowledges support by SAO grant #DD6-17079X. This Letter is also partially based on observations collected at the INAF Copernico 1.82 m telescope and the Galileo 1.22 m telescope of the University of Padova. S.B. and L.T. are partially supported by the PRIN-INAF 2016 with the project “Toward the SKA and CTA era: discovery, localization, and physics of transient sources.” T.A.T. is partially supported by a Simons Foundation Fellowship and an IBM Einstein Fellowship from the Institute for Advanced Study, Princeton. N.E.R. acknowledges support from the Spanish MICINN grant ESP2017-82674-R and FEDER funds. C.G. appreciates the Carlsberg Foundation funding. M.G. is supported by the Polish National Science Centre grant OPUS 2015/17/B/ST9/03167. This research uses data obtained through TAP. This work is partly based on observations made with GTC, installed in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias (IAC). NUTS is funded in part by the Instrument center for Danish Astrophysics (IDA). ASAS-SN is supported by the Gordon and Betty Moore Foundation through grant GBMF5490 to OSU and NSF grant AST-1515927. Development of ASAS-SN has been supported by NSF grant AST-0908816, the Mt. Cuba Astronomical Foundation, CCAPP at OSU, CAS-SACA, the Villum Foundation, and George Skestos. This work is also partly based on observations made with the NOT, operated by the Nordic Optical Telescope Scientific Association at the Observatorio del Roque de los Muchachos, La Palma, Spain, of IAC. The data presented here were obtained [in part] with ALFOSC, which is provided by the Instituto de Astrofisica de Andalucia (IAA) under a joint agreement with the University of Copenhagen and NOTSA.

Agradecimiento

We thank Juna A. Kollmeier, who enabled our Magellan observations of this target during her program. We thank Andrea Pastorello for help in acquiring observational data, and Eran Ofek and Boaz Katz for useful discussions. We thank Belinda Wilkes, late Neil Gehrels, and the Swift team for Chandra DDT and Swift ToO requests. We acknowledge the SN spectral repository WISeREP (http://wiserep.weizmann.ac.il). S.B., S.D., and P.C. acknowledge NSFC Project 11573003. S.B. is partially supported by China postdoctoral science foundation grant No. 2018T110006. M.S. is supported in part by a grant (13261) from VILLUM FONDEN. D.G. acknowledges support by SAO grant #DD6-17079X. This Letter is also partially based on observations collected at the INAF Copernico 1.82m telescope and the Galileo 1.22m telescope of the University of Padova. S.B. and L.T. are partially supported by the PRIN-INAF 2016 with the project "Toward the SKA and CTA era: discovery, localization, and physics of transient sources." T.A.T. is partially supported by a Simons Foundation Fellowship and an IBM Einstein Fellowship from the Institute for Advanced Study, Princeton. N.E.R. acknowledges support from the Spanish MICINN grant ESP2017-82674-R and FEDER funds. C.G. appreciates the Carlsberg Foundation funding. M.G. is supported by the Polish National Science Centre grant OPUS 2015/17/B/ST9/03167. This research uses data obtained through TAP. This work is partly based on observations made with GTC, installed in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias (IAC). NUTS is funded in part by the Instrument center for Danish Astrophysics (IDA). ASAS-SN is supported by the Gordon and Betty Moore Foundation through grant GBMF5490 to OSU and NSF grant AST-1515927. Development of ASAS-SN has been supported by NSF grant AST-0908816, the Mt. Cuba Astronomical Foundation, CCAPP at OSU, CAS-SACA, the Villum Foundation, and George Skestos. This work is also partly based on observations made with the NOT, operated by the Nordic Optical Telescope Scientific Association at the Observatorio del Roque de los Muchachos, La Palma, Spain, of IAC. The data presented here were obtained [in part] with ALFOSC, which is provided by the Instituto de Astrofisica de Andalucia (IAA) under a joint agreement with the University of Copenhagen and NOTSA.

We thank Juna A. Kollmeier, who enabled our Magellan observations of this target during her program. We thank Andrea Pastorello for help in acquiring observational data, and Eran Ofek and Boaz Katz for useful discussions. We thank Belinda Wilkes, late Neil Gehrels, and the Swift team for Chandra DDT and Swift ToO requests. We acknowledge the SN spectral repository WISeREP (http://wiserep.weizmann.ac.il). S.B., S.D., and P.C. acknowledge NSFC Project 11573003. S.B. is partially supported by China postdoctoral science foundation grant No. 2018T110006. M.S. is supported in part by a grant (13261) from VILLUM FONDEN. D.G. acknowledges support by SAO grant #DD6-17079X. This Letter is also partially based on observations collected at the INAF Copernico 1.82 m telescope and the Galileo 1.22 m telescope of the University of Padova. S.B. and L.T. are partially supported by the PRIN-INAF 2016 with the project “Toward the SKA and CTA era: discovery, localization, and physics of transient sources.” T.A.T. is partially supported by a Simons Foundation Fellowship and an IBM Einstein Fellowship from the Institute for Advanced Study, Princeton. N.E.R. acknowledges support from the Spanish MICINN grant ESP2017-82674-R and FEDER funds. C.G. appreciates the Carlsberg Foundation funding. M.G. is supported by the Polish National Science Centre grant OPUS 2015/17/B/ST9/03167. This research uses data obtained through TAP. This work is partly based on observations made with GTC, installed in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias (IAC). NUTS is funded in part by the Instrument center for Danish Astrophysics (IDA). ASAS-SN is supported by the Gordon and Betty Moore Foundation through grant GBMF5490 to OSU and NSF grant AST-1515927. Development of ASAS-SN has been supported by NSF grant AST-0908816, the Mt. Cuba Astronomical Foundation, CCAPP at OSU, CAS-SACA, the Villum Foundation, and George Skestos. This work is also partly based on observations made with the NOT, operated by the Nordic Optical Telescope Scientific Association at the Observatorio del Roque de los Muchachos, La Palma, Spain, of IAC. The data presented here were obtained [in part] with ALFOSC, which is provided by the Instituto de Astrofisica de Andalucia (IAA) under a joint agreement with the University of Copenhagen and NOTSA.

Muestra la fuente de financiamiento declarada en la publicación.

Abstract

Revista

Métricas Externas

Disciplinas de Investigación

Colaboración Institucional

Autores - Afiliación

Origen de Citas Identificadas

Financiamiento

Agradecimientos

Departamento Gestión de Conocimiento, Monitoreo y Prospección