Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSat

Autores
Bhargava, Yash; Dewangan, Gulab Chand; Anupama, G. C.; Kamath, U. S.; Sonith, L. S.; Pal Singh, Kulinder; Drake, J. J.; Beardmore, A; Luna, Gerardo Juan Manuel; Orio, M.; Page, K. L.
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nova Her 2021 or V1674 Her was one of the fastest novae to be observed so far. We report here the results from our timing and spectral studies of the source observed at multiple epochs with AstroSat. We report the detection of a periodicity in the source in soft X-rays at a period of 501.4–501.5 s which was detected with high significance after the peak of the super-soft phase, but was not detected in the far ultraviolet (FUV) band of AstroSat. The shape of the phase-folded X-ray light curves has varied significantly as the nova evolved. The phase-resolved spectral studies reveal the likely presence of various absorption features in the soft X-ray band of 0.5–2 keV, and suggest that the optical depth of these absorption features may be marginally dependent on the pulse phase. Strong emission lines from Si, N, and O are detected in the FUV, and their strength declined continuously as the nova evolved and went through a bright X-ray state.
Fil: Bhargava, Yash. No especifíca;
Fil: Dewangan, Gulab Chand. International Centre Of Theoretical Science. Tata Institute Of Fundamental Research; España
Fil: Anupama, G. C.. No especifíca;
Fil: Kamath, U. S.. No especifíca;
Fil: Sonith, L. S.. No especifíca;
Fil: Pal Singh, Kulinder. ndian Institute of Science Education and Research Mohali; India
Fil: Drake, J. J.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Beardmore, A. University of Leicester; Reino Unido
Fil: Luna, Gerardo Juan Manuel. Secretaria de Investigacion ; Universidad Nacional de Hurlingham; . Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Orio, M.. Istituto Nazionale di Astrofisica; Italia
Fil: Page, K. L.. University of Leicester; Reino Unido
Materia
METHODS: OBSERVATIONAL
NOVAE, CATACLYSMIC VARIABLES
ULTRAVIOLET: GENERAL
X-RAYS: BINARIES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/224396
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/224396
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSatBhargava, YashDewangan, Gulab ChandAnupama, G. C.Kamath, U. S.Sonith, L. S.Pal Singh, KulinderDrake, J. J.Beardmore, ALuna, Gerardo Juan ManuelOrio, M.Page, K. L.METHODS: OBSERVATIONALNOVAE, CATACLYSMIC VARIABLESULTRAVIOLET: GENERALX-RAYS: BINARIEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Nova Her 2021 or V1674 Her was one of the fastest novae to be observed so far. We report here the results from our timing and spectral studies of the source observed at multiple epochs with AstroSat. We report the detection of a periodicity in the source in soft X-rays at a period of 501.4–501.5 s which was detected with high significance after the peak of the super-soft phase, but was not detected in the far ultraviolet (FUV) band of AstroSat. The shape of the phase-folded X-ray light curves has varied significantly as the nova evolved. The phase-resolved spectral studies reveal the likely presence of various absorption features in the soft X-ray band of 0.5–2 keV, and suggest that the optical depth of these absorption features may be marginally dependent on the pulse phase. Strong emission lines from Si, N, and O are detected in the FUV, and their strength declined continuously as the nova evolved and went through a bright X-ray state.Fil: Bhargava, Yash. No especifíca;Fil: Dewangan, Gulab Chand. International Centre Of Theoretical Science. Tata Institute Of Fundamental Research; EspañaFil: Anupama, G. C.. No especifíca;Fil: Kamath, U. S.. No especifíca;Fil: Sonith, L. S.. No especifíca;Fil: Pal Singh, Kulinder. ndian Institute of Science Education and Research Mohali; IndiaFil: Drake, J. J.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Beardmore, A. University of Leicester; Reino UnidoFil: Luna, Gerardo Juan Manuel. Secretaria de Investigacion ; Universidad Nacional de Hurlingham; . Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Orio, M.. Istituto Nazionale di Astrofisica; ItaliaFil: Page, K. L.. University of Leicester; Reino UnidoWiley Blackwell Publishing, Inc2023-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/224396Bhargava, Yash; Dewangan, Gulab Chand; Anupama, G. C.; Kamath, U. S.; Sonith, L. S.; et al.; Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSat; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 528; 1; 12-2023; 28-380035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stad3870/7478008info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stad3870info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:58:54Zoai:ri.conicet.gov.ar:11336/224396instacron: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:34982025-09-03 09:58:54.638CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSat
title Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSat
spellingShingle Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSat
Bhargava, Yash
METHODS: OBSERVATIONAL
NOVAE, CATACLYSMIC VARIABLES
ULTRAVIOLET: GENERAL
X-RAYS: BINARIES
title_short Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSat
title_full Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSat
title_fullStr Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSat
title_full_unstemmed Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSat
title_sort Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSat
dc.creator.none.fl_str_mv Bhargava, Yash
Dewangan, Gulab Chand
Anupama, G. C.
Kamath, U. S.
Sonith, L. S.
Pal Singh, Kulinder
Drake, J. J.
Beardmore, A
Luna, Gerardo Juan Manuel
Orio, M.
Page, K. L.
author Bhargava, Yash
author_facet Bhargava, Yash
Dewangan, Gulab Chand
Anupama, G. C.
Kamath, U. S.
Sonith, L. S.
Pal Singh, Kulinder
Drake, J. J.
Beardmore, A
Luna, Gerardo Juan Manuel
Orio, M.
Page, K. L.
author_role author
author2 Dewangan, Gulab Chand
Anupama, G. C.
Kamath, U. S.
Sonith, L. S.
Pal Singh, Kulinder
Drake, J. J.
Beardmore, A
Luna, Gerardo Juan Manuel
Orio, M.
Page, K. L.
author2_role author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv METHODS: OBSERVATIONAL
NOVAE, CATACLYSMIC VARIABLES
ULTRAVIOLET: GENERAL
X-RAYS: BINARIES
topic METHODS: OBSERVATIONAL
NOVAE, CATACLYSMIC VARIABLES
ULTRAVIOLET: GENERAL
X-RAYS: BINARIES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Nova Her 2021 or V1674 Her was one of the fastest novae to be observed so far. We report here the results from our timing and spectral studies of the source observed at multiple epochs with AstroSat. We report the detection of a periodicity in the source in soft X-rays at a period of 501.4–501.5 s which was detected with high significance after the peak of the super-soft phase, but was not detected in the far ultraviolet (FUV) band of AstroSat. The shape of the phase-folded X-ray light curves has varied significantly as the nova evolved. The phase-resolved spectral studies reveal the likely presence of various absorption features in the soft X-ray band of 0.5–2 keV, and suggest that the optical depth of these absorption features may be marginally dependent on the pulse phase. Strong emission lines from Si, N, and O are detected in the FUV, and their strength declined continuously as the nova evolved and went through a bright X-ray state.
Fil: Bhargava, Yash. No especifíca;
Fil: Dewangan, Gulab Chand. International Centre Of Theoretical Science. Tata Institute Of Fundamental Research; España
Fil: Anupama, G. C.. No especifíca;
Fil: Kamath, U. S.. No especifíca;
Fil: Sonith, L. S.. No especifíca;
Fil: Pal Singh, Kulinder. ndian Institute of Science Education and Research Mohali; India
Fil: Drake, J. J.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Beardmore, A. University of Leicester; Reino Unido
Fil: Luna, Gerardo Juan Manuel. Secretaria de Investigacion ; Universidad Nacional de Hurlingham; . Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Orio, M.. Istituto Nazionale di Astrofisica; Italia
Fil: Page, K. L.. University of Leicester; Reino Unido
description Nova Her 2021 or V1674 Her was one of the fastest novae to be observed so far. We report here the results from our timing and spectral studies of the source observed at multiple epochs with AstroSat. We report the detection of a periodicity in the source in soft X-rays at a period of 501.4–501.5 s which was detected with high significance after the peak of the super-soft phase, but was not detected in the far ultraviolet (FUV) band of AstroSat. The shape of the phase-folded X-ray light curves has varied significantly as the nova evolved. The phase-resolved spectral studies reveal the likely presence of various absorption features in the soft X-ray band of 0.5–2 keV, and suggest that the optical depth of these absorption features may be marginally dependent on the pulse phase. Strong emission lines from Si, N, and O are detected in the FUV, and their strength declined continuously as the nova evolved and went through a bright X-ray state.
publishDate 2023
dc.date.none.fl_str_mv 2023-12
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/11336/224396
Bhargava, Yash; Dewangan, Gulab Chand; Anupama, G. C.; Kamath, U. S.; Sonith, L. S.; et al.; Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSat; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 528; 1; 12-2023; 28-38
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/224396
identifier_str_mv Bhargava, Yash; Dewangan, Gulab Chand; Anupama, G. C.; Kamath, U. S.; Sonith, L. S.; et al.; Soft X-ray and FUV observations of Nova Her 2021 (V1674 Her) with AstroSat; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 528; 1; 12-2023; 28-38
0035-8711
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://academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stad3870/7478008
info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/stad3870
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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