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Probing the Shock Breakout Signal of SN 2024ggi from the Transformation of Early Flash Spectroscopy
Indexado
WoS WOS:001272151800001
Scopus SCOPUS_ID:85199359321
DOI 10.3847/2041-8213/AD5DA4
Año 2024
Tipo artículo de investigación

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



We present early-time, hour-to-day cadence spectroscopy of the nearby Type II supernova (SN II) 2024ggi, which was discovered at a phase when the SN shock had just emerged from the red supergiant (RSG) progenitor star. Over the first few days after the first light, SN 2024ggi exhibited prominent narrow emission lines formed through intense and persistent photoionization of the nearby circumstellar material (CSM). In the first 63 hr, spectral lines of He, C, N, and O revealed a rapid rise in ionization as a result of the progressive sweeping up of the CSM by the shock. The duration of the IIn-like spectra indicates a dense and relatively confined CSM distribution extending up to similar to 4 x 1014 cm. Spectral modeling reveals that a CSM mass-loss rate at this region exceeding 5 x 10-3 M circle dot yr-1 is required to reproduce low-ionization emissions, which dramatically exceeds that of an RSG. Analyzing the H alpha emission shift implies the velocity of the unshocked outer CSM to be between 20 and 40 km s-1, matching the typical wind velocity of an RSG. The differences between the inner and outer layers of the CSM and an RSG progenitor highlight a complex mass-loss history before the explosion of SN 2024ggi.

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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 Zhang, J. - CASSACA - China
Yunnan Key Lab - China
Yunnan Observatories - China
International Centre of Supernovae - China
Chinese Academy of Sciences - China
2 Dessart, Luc - Sorbonne Univ - Francia
Institut d’Astrophysique de Paris - Francia
3 Wang, Xiaofeng - Tsinghua Univ - China
Tsinghua University - China
4 Zhai, Qian - CASSACA - China
Yunnan Observatories - China
Chinese Academy of Sciences - China
5 Yang, Y. - Tsinghua Univ - China
UNIV CALIF BERKELEY - Estados Unidos
Tsinghua University - China
University of California, Berkeley - Estados Unidos
6 Li, Liping - CASSACA - China
Yunnan Key Lab - China
Yunnan Observatories - China
International Centre of Supernovae - China
Chinese Academy of Sciences - China
7 Lin, Han - CASSACA - China
Yunnan Key Lab - China
Yunnan Observatories - China
International Centre of Supernovae - China
Chinese Academy of Sciences - China
8 Valerin, G. Hombre INAF Osservatorio Astron Padova - Italia
Osservatorio Astronomico di Padova - Italia
9 Cai, Y. Z. - CASSACA - China
Yunnan Key Lab - China
Yunnan Observatories - China
International Centre of Supernovae - China
Chinese Academy of Sciences - China
10 Guo, Z. - Universidad de Valparaíso - Chile
Univ Hertfordshire - Reino Unido
Instituto Milenio de Astrofísica - Chile
University of Hertfordshire - Reino Unido
11 Wang, Lingzhi - CASSACA - China
Chinese Academy of Sciences South America Center for Astronomy - Chile
Chinese Academy of Sciences - China
12 Zhao, Zeyi - CASSACA - China
Yunnan Key Lab - China
Yunnan Observatories - China
International Centre of Supernovae - China
Chinese Academy of Sciences - China
13 Wang, Zhenyu - CASSACA - China
Yunnan Key Lab - China
Yunnan Observatories - China
International Centre of Supernovae - China
Chinese Academy of Sciences - China
14 Yan, Shengyu - Tsinghua Univ - China
Tsinghua University - China

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

Financiamiento



Fuente
National Natural Science Foundation of China
National Key R&D Program of China
National Key Research and Development Program of China
Chinese Academy of Sciences
National Natural Science Foundation of China (NSFC)
Millennium Science Initiative
Chinese Academy of Sciences (CAS)
People's Government of Yunnan Province
Chinese Academy of Sciences South America Center for Astronomy
CAS South America Center for Astronomy (CASSACA) in Santiago, Chile
ANID Fondecyt
Agencia Nacional de Investigación y Desarrollo
ANID, Millennium Science Initiative
Yunnan Fundamental Research Projects
China Manned Space Project
Tencent XPLORER Prize
ANID Fondecyt Postdoctoral
International Centre of Supernovae, and Yunnan Key Laboratory
Light of West China Program provided by the Chinese Academy of Sciences
Top-notch Young Talents Program of Yunnan Province

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos



Agradecimiento
This work is supported by the National Key R&D Program of China with No. 2021YFA1600404, the National Natural Science Foundation of China (12173082), the science research grants from the China Manned Space Project with No. CMS-CSST-2021-A12, the Yunnan Fundamental Research Projects (grants 202201AT070069 and 202401BC070007), the Top-notch Young Talents Program of Yunnan Province, the Light of West China Program provided by the Chinese Academy of Sciences, the International Centre of Supernovae, and Yunnan Key Laboratory (No. 202302AN360001). X.W. is supported by the National Natural Science Foundation of China (NSFC grants 12288102 and 1203300) and the Tencent Xplorer Prize. Y.-Z.C. is supported by the National Natural Science Foundation of China (NSFC; grant No. 12303054) and the Yunnan Fundamental Research Projects (grant No. 202401AU070063). Z.G. is supported by the ANID FONDECYT Postdoctoral program No. 3220029. This work was funded by ANID, Millennium Science Initiative, AIM23-0001. This work has made use of the University of Hertfordshire's high-performance computing facility (http://uhhpc.herts.ac.uk). L.W. is sponsored (in part) by the Chinese Academy of Sciences (CAS), through a grant to the CAS South America Center for Astronomy (CASSACA) in Santiago, Chile.
This work is supported by the National Key R&D Program of China with No. 2021YFA1600404, the National Natural Science Foundation of China (12173082), the science research grants from the China Manned Space Project with No. CMS-CSST-2021-A12, the Yunnan Fundamental Research Projects (grants 202201AT070069 and 202401BC070007), the Top-notch Young Talents Program of Yunnan Province, the Light of West China Program provided by the Chinese Academy of Sciences, the International Centre of Supernovae, and Yunnan Key Laboratory (No. 202302AN360001). X.W. is supported by the National Natural Science Foundation of China (NSFC grants 12288102 and 1203300) and the Tencent Xplorer Prize. Y.-Z.C. is supported by the National Natural Science Foundation of China (NSFC; grant No. 12303054) and the Yunnan Fundamental Research Projects (grant No. 202401AU070063). Z.G. is supported by the ANID FONDECYT Postdoctoral program No. 3220029. This work was funded by ANID, Millennium Science Initiative, AIM23-0001. This work has made use of the University of Hertfordshire\u2019s high-performance computing facility (http://uhhpc.herts.ac.uk). L.W. is sponsored (in part) by the Chinese Academy of Sciences (CAS), through a grant to the CAS South America Center for Astronomy (CASSACA) in Santiago, Chile.
This work is supported by the National Key R&D Program of China with No. 2021YFA1600404, the National Natural Science Foundation of China (12173082), the science research grants from the China Manned Space Project with No. CMS-CSST-2021-A12, the Yunnan Fundamental Research Projects (grants 202201AT070069 and 202401BC070007), the Top-notch Young Talents Program of Yunnan Province, the Light of West China Program provided by the Chinese Academy of Sciences, the International Centre of Supernovae, and Yunnan Key Laboratory (No. 202302AN360001). X.W. is supported by the National Natural Science Foundation of China (NSFC grants 12288102 and 1203300) and the Tencent Xplorer Prize. Y.-Z.C. is supported by the National Natural Science Foundation of China (NSFC; grant No. 12303054) and the Yunnan Fundamental Research Projects (grant No. 202401AU070063). Z.G. is supported by the ANID FONDECYT Postdoctoral program No. 3220029. This work was funded by ANID, Millennium Science Initiative, AIM23-0001. This work has made use of the University of Hertfordshire\u2019s high-performance computing facility (http://uhhpc.herts.ac.uk). L.W. is sponsored (in part) by the Chinese Academy of Sciences (CAS), through a grant to the CAS South America Center for Astronomy (CASSACA) in Santiago, Chile.

Muestra la fuente de financiamiento declarada en la publicación.