The Carnegie Supernova Project I
- Autores
- Holmbo, S.; Stritzinger, Maximilian; Karamehmetoglu, E.; Burns, Christopher R.; Morrell, Nidia Irene; Ashall, Chris; Hsiao, Eric; Galbany, Lluís; Folatelli, Gaston; Phillips, M. M.; Baron, E.; Gutiérrez, C. P.; Leloudas, G.; Müller Bravo, T. E.; Hoeflich, Peter; Taddia, F.; Suntzeff, Nicholas B.
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- An analysis leveraging 170 optical spectra of 35 stripped-envelope (SE) core-collapse supernovae (SNe) observed by the Carnegie Supernova Project I and published in a companion paper is presented. Mean template spectra were constructed for the SNe IIb, Ib, and Ic subtypes, and parent ions associated with designated spectral features are identified with the aid of the spectral synthesis code SYNAPPS. Our modeled mean spectra suggest the ∼6150 Å feature in SNe IIb may have an underlying contribution due to silicon, while the same feature in some SNe Ib may have an underlying contribution due to hydrogen. Standard spectral line diagnostics consisting of pseudo-equivalent widths (pEWs) and blue-shifted Doppler velocity were measured for each of the spectral features. Correlation matrices and rolling mean values of both spectral diagnostics were constructed. A principle component analysis (PCA) was applied to various wavelength ranges of the entire dataset and suggests clear separation among the different SE SN subtypes, which follows from trends previously identified in the literature. In addition, our findings reveal the presence of two SNe IIb subtypes, a select number of SNe Ib displaying signatures of weak, high-velocity hydrogen, and a single SN Ic with evidence of weak helium features. Our PCA results can be leveraged to obtain robust subtyping of SE SNe based on a single spectrum taken during the so-called photospheric phase, separating SNe IIb from SNe Ib with ∼80% completion.
Fil: Holmbo, S.. Carnegie Observatories; Chile
Fil: Stritzinger, Maximilian. Carnegie Observatories; Chile
Fil: Karamehmetoglu, E.. Carnegie Observatories; Chile
Fil: Burns, Christopher R.. Carnegie Observatories; Chile
Fil: Morrell, Nidia Irene. Carnegie Observatories; Chile
Fil: Ashall, Chris. Carnegie Observatories; Chile
Fil: Hsiao, Eric. Carnegie Observatories; Chile
Fil: Galbany, Lluís. Carnegie Observatories; Chile
Fil: Folatelli, Gaston. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Phillips, M. M.. Carnegie Observatories; Chile
Fil: Baron, E.. Carnegie Observatories; Chile
Fil: Gutiérrez, C. P.. Carnegie Observatories; Chile
Fil: Leloudas, G.. Carnegie Observatories; Chile
Fil: Müller Bravo, T. E.. Carnegie Observatories; Chile
Fil: Hoeflich, Peter. Carnegie Observatories; Chile
Fil: Taddia, F.. Carnegie Observatories; Chile
Fil: Suntzeff, Nicholas B.. Carnegie Observatories; Chile - Materia
- Supernovae
- Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
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- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/250111
Ver los metadatos del registro completo
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The Carnegie Supernova Project IHolmbo, S.Stritzinger, MaximilianKaramehmetoglu, E.Burns, Christopher R.Morrell, Nidia IreneAshall, ChrisHsiao, EricGalbany, LluísFolatelli, GastonPhillips, M. M.Baron, E.Gutiérrez, C. P.Leloudas, G.Müller Bravo, T. E.Hoeflich, PeterTaddia, F.Suntzeff, Nicholas B.Supernovaehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1An analysis leveraging 170 optical spectra of 35 stripped-envelope (SE) core-collapse supernovae (SNe) observed by the Carnegie Supernova Project I and published in a companion paper is presented. Mean template spectra were constructed for the SNe IIb, Ib, and Ic subtypes, and parent ions associated with designated spectral features are identified with the aid of the spectral synthesis code SYNAPPS. Our modeled mean spectra suggest the ∼6150 Å feature in SNe IIb may have an underlying contribution due to silicon, while the same feature in some SNe Ib may have an underlying contribution due to hydrogen. Standard spectral line diagnostics consisting of pseudo-equivalent widths (pEWs) and blue-shifted Doppler velocity were measured for each of the spectral features. Correlation matrices and rolling mean values of both spectral diagnostics were constructed. A principle component analysis (PCA) was applied to various wavelength ranges of the entire dataset and suggests clear separation among the different SE SN subtypes, which follows from trends previously identified in the literature. In addition, our findings reveal the presence of two SNe IIb subtypes, a select number of SNe Ib displaying signatures of weak, high-velocity hydrogen, and a single SN Ic with evidence of weak helium features. Our PCA results can be leveraged to obtain robust subtyping of SE SNe based on a single spectrum taken during the so-called photospheric phase, separating SNe IIb from SNe Ib with ∼80% completion.Fil: Holmbo, S.. Carnegie Observatories; ChileFil: Stritzinger, Maximilian. Carnegie Observatories; ChileFil: Karamehmetoglu, E.. Carnegie Observatories; ChileFil: Burns, Christopher R.. Carnegie Observatories; ChileFil: Morrell, Nidia Irene. Carnegie Observatories; ChileFil: Ashall, Chris. Carnegie Observatories; ChileFil: Hsiao, Eric. Carnegie Observatories; ChileFil: Galbany, Lluís. Carnegie Observatories; ChileFil: Folatelli, Gaston. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Phillips, M. M.. Carnegie Observatories; ChileFil: Baron, E.. Carnegie Observatories; ChileFil: Gutiérrez, C. P.. Carnegie Observatories; ChileFil: Leloudas, G.. Carnegie Observatories; ChileFil: Müller Bravo, T. E.. Carnegie Observatories; ChileFil: Hoeflich, Peter. Carnegie Observatories; ChileFil: Taddia, F.. Carnegie Observatories; ChileFil: Suntzeff, Nicholas B.. Carnegie Observatories; ChileEDP Sciences2023-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/250111Holmbo, S.; Stritzinger, Maximilian; Karamehmetoglu, E.; Burns, Christopher R.; Morrell, Nidia Irene; et al.; The Carnegie Supernova Project I; EDP Sciences; Astronomy and Astrophysics; 675; A83; 7-2023; 1-290004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202245334info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202245334info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:52:55Zoai:ri.conicet.gov.ar:11336/250111instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:52:56.07CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
The Carnegie Supernova Project I |
| title |
The Carnegie Supernova Project I |
| spellingShingle |
The Carnegie Supernova Project I Holmbo, S. Supernovae |
| title_short |
The Carnegie Supernova Project I |
| title_full |
The Carnegie Supernova Project I |
| title_fullStr |
The Carnegie Supernova Project I |
| title_full_unstemmed |
The Carnegie Supernova Project I |
| title_sort |
The Carnegie Supernova Project I |
| dc.creator.none.fl_str_mv |
Holmbo, S. Stritzinger, Maximilian Karamehmetoglu, E. Burns, Christopher R. Morrell, Nidia Irene Ashall, Chris Hsiao, Eric Galbany, Lluís Folatelli, Gaston Phillips, M. M. Baron, E. Gutiérrez, C. P. Leloudas, G. Müller Bravo, T. E. Hoeflich, Peter Taddia, F. Suntzeff, Nicholas B. |
| author |
Holmbo, S. |
| author_facet |
Holmbo, S. Stritzinger, Maximilian Karamehmetoglu, E. Burns, Christopher R. Morrell, Nidia Irene Ashall, Chris Hsiao, Eric Galbany, Lluís Folatelli, Gaston Phillips, M. M. Baron, E. Gutiérrez, C. P. Leloudas, G. Müller Bravo, T. E. Hoeflich, Peter Taddia, F. Suntzeff, Nicholas B. |
| author_role |
author |
| author2 |
Stritzinger, Maximilian Karamehmetoglu, E. Burns, Christopher R. Morrell, Nidia Irene Ashall, Chris Hsiao, Eric Galbany, Lluís Folatelli, Gaston Phillips, M. M. Baron, E. Gutiérrez, C. P. Leloudas, G. Müller Bravo, T. E. Hoeflich, Peter Taddia, F. Suntzeff, Nicholas B. |
| author2_role |
author author author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Supernovae |
| topic |
Supernovae |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
An analysis leveraging 170 optical spectra of 35 stripped-envelope (SE) core-collapse supernovae (SNe) observed by the Carnegie Supernova Project I and published in a companion paper is presented. Mean template spectra were constructed for the SNe IIb, Ib, and Ic subtypes, and parent ions associated with designated spectral features are identified with the aid of the spectral synthesis code SYNAPPS. Our modeled mean spectra suggest the ∼6150 Å feature in SNe IIb may have an underlying contribution due to silicon, while the same feature in some SNe Ib may have an underlying contribution due to hydrogen. Standard spectral line diagnostics consisting of pseudo-equivalent widths (pEWs) and blue-shifted Doppler velocity were measured for each of the spectral features. Correlation matrices and rolling mean values of both spectral diagnostics were constructed. A principle component analysis (PCA) was applied to various wavelength ranges of the entire dataset and suggests clear separation among the different SE SN subtypes, which follows from trends previously identified in the literature. In addition, our findings reveal the presence of two SNe IIb subtypes, a select number of SNe Ib displaying signatures of weak, high-velocity hydrogen, and a single SN Ic with evidence of weak helium features. Our PCA results can be leveraged to obtain robust subtyping of SE SNe based on a single spectrum taken during the so-called photospheric phase, separating SNe IIb from SNe Ib with ∼80% completion. Fil: Holmbo, S.. Carnegie Observatories; Chile Fil: Stritzinger, Maximilian. Carnegie Observatories; Chile Fil: Karamehmetoglu, E.. Carnegie Observatories; Chile Fil: Burns, Christopher R.. Carnegie Observatories; Chile Fil: Morrell, Nidia Irene. Carnegie Observatories; Chile Fil: Ashall, Chris. Carnegie Observatories; Chile Fil: Hsiao, Eric. Carnegie Observatories; Chile Fil: Galbany, Lluís. Carnegie Observatories; Chile Fil: Folatelli, Gaston. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina Fil: Phillips, M. M.. Carnegie Observatories; Chile Fil: Baron, E.. Carnegie Observatories; Chile Fil: Gutiérrez, C. P.. Carnegie Observatories; Chile Fil: Leloudas, G.. Carnegie Observatories; Chile Fil: Müller Bravo, T. E.. Carnegie Observatories; Chile Fil: Hoeflich, Peter. Carnegie Observatories; Chile Fil: Taddia, F.. Carnegie Observatories; Chile Fil: Suntzeff, Nicholas B.. Carnegie Observatories; Chile |
| description |
An analysis leveraging 170 optical spectra of 35 stripped-envelope (SE) core-collapse supernovae (SNe) observed by the Carnegie Supernova Project I and published in a companion paper is presented. Mean template spectra were constructed for the SNe IIb, Ib, and Ic subtypes, and parent ions associated with designated spectral features are identified with the aid of the spectral synthesis code SYNAPPS. Our modeled mean spectra suggest the ∼6150 Å feature in SNe IIb may have an underlying contribution due to silicon, while the same feature in some SNe Ib may have an underlying contribution due to hydrogen. Standard spectral line diagnostics consisting of pseudo-equivalent widths (pEWs) and blue-shifted Doppler velocity were measured for each of the spectral features. Correlation matrices and rolling mean values of both spectral diagnostics were constructed. A principle component analysis (PCA) was applied to various wavelength ranges of the entire dataset and suggests clear separation among the different SE SN subtypes, which follows from trends previously identified in the literature. In addition, our findings reveal the presence of two SNe IIb subtypes, a select number of SNe Ib displaying signatures of weak, high-velocity hydrogen, and a single SN Ic with evidence of weak helium features. Our PCA results can be leveraged to obtain robust subtyping of SE SNe based on a single spectrum taken during the so-called photospheric phase, separating SNe IIb from SNe Ib with ∼80% completion. |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023-07 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/250111 Holmbo, S.; Stritzinger, Maximilian; Karamehmetoglu, E.; Burns, Christopher R.; Morrell, Nidia Irene; et al.; The Carnegie Supernova Project I; EDP Sciences; Astronomy and Astrophysics; 675; A83; 7-2023; 1-29 0004-6361 CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/250111 |
| identifier_str_mv |
Holmbo, S.; Stritzinger, Maximilian; Karamehmetoglu, E.; Burns, Christopher R.; Morrell, Nidia Irene; et al.; The Carnegie Supernova Project I; EDP Sciences; Astronomy and Astrophysics; 675; A83; 7-2023; 1-29 0004-6361 CONICET Digital CONICET |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202245334 info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202245334 |
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info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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openAccess |
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
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application/pdf application/pdf |
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EDP Sciences |
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EDP Sciences |
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