Very high energy observations of the binaries V 404 CYG AND 4U 0115+634 during giant X-Ray outbursts
- Autores
- Archer, A.; Benbow, W.; Bird, R.; Bourbeau, E.; Buchovecky, M.; Buckley, J. H.; Bugaev, V.; Byrum, K.; Cerruti, M.; Connolly, M. P.; Cui, W.; Errando, M.; Falcone, A.; Feng, Q.; Fernandez Alonso, Mateo; Finley, J. P.; Fleischhack, H.; Flinders, A.; Fortson, L.; Furniss, A.; Griffin, S.; Grube, J.; Hütten, M.; Hanna, D.; Hervet, O.; Holder, J.; Humensky, T. B.; Johnson, C. A.; Kaaret, P.; Rovero, Adrian Carlos; The Veritas Collaboration
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Transient X-ray binaries produce major outbursts in which the X-ray flux can increase over the quiescent level by factors as large as 107. The low-mass X-ray binary V 404 Cyg and the high-mass system 4U 0115+634 underwent such major outbursts in 2015 June and October, respectively. We present here observations at energies above hundreds of GeV with the VERITAS observatory taken during some of the brightest X-ray activity ever observed from these systems. No gamma-ray emission has been detected by VERITAS in 2.5 hr of observations of the microquasar V 404 Cyg from 2015, June 20–21. The upper flux limits derived from these observations on the gamma-ray flux above 200 GeV of F $\lt \,4.4\times {10}^{-12}$ cm−2 s−1 correspond to a tiny fraction (about 10−6) of the Eddington luminosity of the system, in stark contrast to that seen in the X-ray band. No gamma-rays have been detected during observations of 4U 0115+634 in the period of major X-ray activity in 2015 October. The flux upper limit derived from our observations is F $\lt \,2.1\times {10}^{-12}$ cm−2 s−1 for gamma-rays above 300 GeV, setting an upper limit on the ratio of gamma-ray to X-ray luminosity of less than 4%.
Fil: Archer, A.. University of Washington; Estados Unidos
Fil: Benbow, W.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Bird, R.. University College Dublin; Irlanda
Fil: Bourbeau, E.. McGill University; Canadá
Fil: Buchovecky, M.. University of California; Estados Unidos
Fil: Buckley, J. H.. University of Washington; Estados Unidos
Fil: Bugaev, V.. University of Washington; Estados Unidos
Fil: Byrum, K.. Argonne National Laboratory; Estados Unidos
Fil: Cerruti, M.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Connolly, M. P.. National University of Ireland Galway,; Irlanda
Fil: Cui, W.. Purdue University; Estados Unidos
Fil: Errando, M.. University of Washington; Estados Unidos
Fil: Falcone, A.. Pennsylvania State University; Estados Unidos
Fil: Feng, Q.. Purdue University; Estados Unidos
Fil: Fernandez Alonso, Mateo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Finley, J. P.. Purdue University; Estados Unidos
Fil: Fleischhack, H.. Desy; Alemania
Fil: Flinders, A.. State University Of Utah; Estados Unidos
Fil: Fortson, L.. University of Minnesota; Estados Unidos
Fil: Furniss, A.. University of California; Estados Unidos
Fil: Griffin, S.. McGill University; Canadá
Fil: Grube, J.. Adler Planetarium and Astronomy Museum; Estados Unidos
Fil: Hütten, M.. Purdue University; Estados Unidos
Fil: Hanna, D.. McGill University; Canadá
Fil: Hervet, O.. University of California; Estados Unidos
Fil: Holder, J.. University of Delaware; Estados Unidos
Fil: Humensky, T. B.. Columbia University; Estados Unidos
Fil: Johnson, C. A.. University of California; Estados Unidos
Fil: Kaaret, P.. University of Iowa; Estados Unidos
Fil: Rovero, Adrian Carlos. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: The Veritas Collaboration. - Materia
-
VERY HIGH ENERGY GAMMA RAYS
BINARY STARS
X-RAY TRANSIENTS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/18880
Ver los metadatos del registro completo
| id |
CONICETDig_8472955b80394c683acf88d7fcdb175b |
|---|---|
| oai_identifier_str |
oai:ri.conicet.gov.ar:11336/18880 |
| network_acronym_str |
CONICETDig |
| repository_id_str |
3498 |
| network_name_str |
CONICET Digital (CONICET) |
| spelling |
Very high energy observations of the binaries V 404 CYG AND 4U 0115+634 during giant X-Ray outburstsArcher, A.Benbow, W.Bird, R.Bourbeau, E.Buchovecky, M.Buckley, J. H.Bugaev, V.Byrum, K.Cerruti, M.Connolly, M. P.Cui, W.Errando, M.Falcone, A.Feng, Q.Fernandez Alonso, MateoFinley, J. P.Fleischhack, H.Flinders, A.Fortson, L.Furniss, A.Griffin, S.Grube, J.Hütten, M.Hanna, D.Hervet, O.Holder, J.Humensky, T. B.Johnson, C. A.Kaaret, P.Rovero, Adrian CarlosThe Veritas CollaborationVERY HIGH ENERGY GAMMA RAYSBINARY STARSX-RAY TRANSIENTShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Transient X-ray binaries produce major outbursts in which the X-ray flux can increase over the quiescent level by factors as large as 107. The low-mass X-ray binary V 404 Cyg and the high-mass system 4U 0115+634 underwent such major outbursts in 2015 June and October, respectively. We present here observations at energies above hundreds of GeV with the VERITAS observatory taken during some of the brightest X-ray activity ever observed from these systems. No gamma-ray emission has been detected by VERITAS in 2.5 hr of observations of the microquasar V 404 Cyg from 2015, June 20–21. The upper flux limits derived from these observations on the gamma-ray flux above 200 GeV of F $\lt \,4.4\times {10}^{-12}$ cm−2 s−1 correspond to a tiny fraction (about 10−6) of the Eddington luminosity of the system, in stark contrast to that seen in the X-ray band. No gamma-rays have been detected during observations of 4U 0115+634 in the period of major X-ray activity in 2015 October. The flux upper limit derived from our observations is F $\lt \,2.1\times {10}^{-12}$ cm−2 s−1 for gamma-rays above 300 GeV, setting an upper limit on the ratio of gamma-ray to X-ray luminosity of less than 4%.Fil: Archer, A.. University of Washington; Estados UnidosFil: Benbow, W.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Bird, R.. University College Dublin; IrlandaFil: Bourbeau, E.. McGill University; CanadáFil: Buchovecky, M.. University of California; Estados UnidosFil: Buckley, J. H.. University of Washington; Estados UnidosFil: Bugaev, V.. University of Washington; Estados UnidosFil: Byrum, K.. Argonne National Laboratory; Estados UnidosFil: Cerruti, M.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Connolly, M. P.. National University of Ireland Galway,; IrlandaFil: Cui, W.. Purdue University; Estados UnidosFil: Errando, M.. University of Washington; Estados UnidosFil: Falcone, A.. Pennsylvania State University; Estados UnidosFil: Feng, Q.. Purdue University; Estados UnidosFil: Fernandez Alonso, Mateo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Finley, J. P.. Purdue University; Estados UnidosFil: Fleischhack, H.. Desy; AlemaniaFil: Flinders, A.. State University Of Utah; Estados UnidosFil: Fortson, L.. University of Minnesota; Estados UnidosFil: Furniss, A.. University of California; Estados UnidosFil: Griffin, S.. McGill University; CanadáFil: Grube, J.. Adler Planetarium and Astronomy Museum; Estados UnidosFil: Hütten, M.. Purdue University; Estados UnidosFil: Hanna, D.. McGill University; CanadáFil: Hervet, O.. University of California; Estados UnidosFil: Holder, J.. University of Delaware; Estados UnidosFil: Humensky, T. B.. Columbia University; Estados UnidosFil: Johnson, C. A.. University of California; Estados UnidosFil: Kaaret, P.. University of Iowa; Estados UnidosFil: Rovero, Adrian Carlos. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: The Veritas Collaboration.Iop Publishing2016-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/18880Archer, A.; Benbow, W.; Bird, R.; Bourbeau, E.; Buchovecky, M.; et al.; Very high energy observations of the binaries V 404 CYG AND 4U 0115+634 during giant X-Ray outbursts; Iop Publishing; Astrophysical Journal; 831; 1; 1-11-2016; 113,1-50004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3847/0004-637X/831/1/113info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1608.06464info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.3847/0004-637X/831/1/113/metainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:01:07Zoai:ri.conicet.gov.ar:11336/18880instacron: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:34982025-09-29 10:01:08.165CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Very high energy observations of the binaries V 404 CYG AND 4U 0115+634 during giant X-Ray outbursts |
| title |
Very high energy observations of the binaries V 404 CYG AND 4U 0115+634 during giant X-Ray outbursts |
| spellingShingle |
Very high energy observations of the binaries V 404 CYG AND 4U 0115+634 during giant X-Ray outbursts Archer, A. VERY HIGH ENERGY GAMMA RAYS BINARY STARS X-RAY TRANSIENTS |
| title_short |
Very high energy observations of the binaries V 404 CYG AND 4U 0115+634 during giant X-Ray outbursts |
| title_full |
Very high energy observations of the binaries V 404 CYG AND 4U 0115+634 during giant X-Ray outbursts |
| title_fullStr |
Very high energy observations of the binaries V 404 CYG AND 4U 0115+634 during giant X-Ray outbursts |
| title_full_unstemmed |
Very high energy observations of the binaries V 404 CYG AND 4U 0115+634 during giant X-Ray outbursts |
| title_sort |
Very high energy observations of the binaries V 404 CYG AND 4U 0115+634 during giant X-Ray outbursts |
| dc.creator.none.fl_str_mv |
Archer, A. Benbow, W. Bird, R. Bourbeau, E. Buchovecky, M. Buckley, J. H. Bugaev, V. Byrum, K. Cerruti, M. Connolly, M. P. Cui, W. Errando, M. Falcone, A. Feng, Q. Fernandez Alonso, Mateo Finley, J. P. Fleischhack, H. Flinders, A. Fortson, L. Furniss, A. Griffin, S. Grube, J. Hütten, M. Hanna, D. Hervet, O. Holder, J. Humensky, T. B. Johnson, C. A. Kaaret, P. Rovero, Adrian Carlos The Veritas Collaboration |
| author |
Archer, A. |
| author_facet |
Archer, A. Benbow, W. Bird, R. Bourbeau, E. Buchovecky, M. Buckley, J. H. Bugaev, V. Byrum, K. Cerruti, M. Connolly, M. P. Cui, W. Errando, M. Falcone, A. Feng, Q. Fernandez Alonso, Mateo Finley, J. P. Fleischhack, H. Flinders, A. Fortson, L. Furniss, A. Griffin, S. Grube, J. Hütten, M. Hanna, D. Hervet, O. Holder, J. Humensky, T. B. Johnson, C. A. Kaaret, P. Rovero, Adrian Carlos The Veritas Collaboration |
| author_role |
author |
| author2 |
Benbow, W. Bird, R. Bourbeau, E. Buchovecky, M. Buckley, J. H. Bugaev, V. Byrum, K. Cerruti, M. Connolly, M. P. Cui, W. Errando, M. Falcone, A. Feng, Q. Fernandez Alonso, Mateo Finley, J. P. Fleischhack, H. Flinders, A. Fortson, L. Furniss, A. Griffin, S. Grube, J. Hütten, M. Hanna, D. Hervet, O. Holder, J. Humensky, T. B. Johnson, C. A. Kaaret, P. Rovero, Adrian Carlos The Veritas Collaboration |
| author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
VERY HIGH ENERGY GAMMA RAYS BINARY STARS X-RAY TRANSIENTS |
| topic |
VERY HIGH ENERGY GAMMA RAYS BINARY STARS X-RAY TRANSIENTS |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
Transient X-ray binaries produce major outbursts in which the X-ray flux can increase over the quiescent level by factors as large as 107. The low-mass X-ray binary V 404 Cyg and the high-mass system 4U 0115+634 underwent such major outbursts in 2015 June and October, respectively. We present here observations at energies above hundreds of GeV with the VERITAS observatory taken during some of the brightest X-ray activity ever observed from these systems. No gamma-ray emission has been detected by VERITAS in 2.5 hr of observations of the microquasar V 404 Cyg from 2015, June 20–21. The upper flux limits derived from these observations on the gamma-ray flux above 200 GeV of F $\lt \,4.4\times {10}^{-12}$ cm−2 s−1 correspond to a tiny fraction (about 10−6) of the Eddington luminosity of the system, in stark contrast to that seen in the X-ray band. No gamma-rays have been detected during observations of 4U 0115+634 in the period of major X-ray activity in 2015 October. The flux upper limit derived from our observations is F $\lt \,2.1\times {10}^{-12}$ cm−2 s−1 for gamma-rays above 300 GeV, setting an upper limit on the ratio of gamma-ray to X-ray luminosity of less than 4%. Fil: Archer, A.. University of Washington; Estados Unidos Fil: Benbow, W.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Bird, R.. University College Dublin; Irlanda Fil: Bourbeau, E.. McGill University; Canadá Fil: Buchovecky, M.. University of California; Estados Unidos Fil: Buckley, J. H.. University of Washington; Estados Unidos Fil: Bugaev, V.. University of Washington; Estados Unidos Fil: Byrum, K.. Argonne National Laboratory; Estados Unidos Fil: Cerruti, M.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Connolly, M. P.. National University of Ireland Galway,; Irlanda Fil: Cui, W.. Purdue University; Estados Unidos Fil: Errando, M.. University of Washington; Estados Unidos Fil: Falcone, A.. Pennsylvania State University; Estados Unidos Fil: Feng, Q.. Purdue University; Estados Unidos Fil: Fernandez Alonso, Mateo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina Fil: Finley, J. P.. Purdue University; Estados Unidos Fil: Fleischhack, H.. Desy; Alemania Fil: Flinders, A.. State University Of Utah; Estados Unidos Fil: Fortson, L.. University of Minnesota; Estados Unidos Fil: Furniss, A.. University of California; Estados Unidos Fil: Griffin, S.. McGill University; Canadá Fil: Grube, J.. Adler Planetarium and Astronomy Museum; Estados Unidos Fil: Hütten, M.. Purdue University; Estados Unidos Fil: Hanna, D.. McGill University; Canadá Fil: Hervet, O.. University of California; Estados Unidos Fil: Holder, J.. University of Delaware; Estados Unidos Fil: Humensky, T. B.. Columbia University; Estados Unidos Fil: Johnson, C. A.. University of California; Estados Unidos Fil: Kaaret, P.. University of Iowa; Estados Unidos Fil: Rovero, Adrian Carlos. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina Fil: The Veritas Collaboration. |
| description |
Transient X-ray binaries produce major outbursts in which the X-ray flux can increase over the quiescent level by factors as large as 107. The low-mass X-ray binary V 404 Cyg and the high-mass system 4U 0115+634 underwent such major outbursts in 2015 June and October, respectively. We present here observations at energies above hundreds of GeV with the VERITAS observatory taken during some of the brightest X-ray activity ever observed from these systems. No gamma-ray emission has been detected by VERITAS in 2.5 hr of observations of the microquasar V 404 Cyg from 2015, June 20–21. The upper flux limits derived from these observations on the gamma-ray flux above 200 GeV of F $\lt \,4.4\times {10}^{-12}$ cm−2 s−1 correspond to a tiny fraction (about 10−6) of the Eddington luminosity of the system, in stark contrast to that seen in the X-ray band. No gamma-rays have been detected during observations of 4U 0115+634 in the period of major X-ray activity in 2015 October. The flux upper limit derived from our observations is F $\lt \,2.1\times {10}^{-12}$ cm−2 s−1 for gamma-rays above 300 GeV, setting an upper limit on the ratio of gamma-ray to X-ray luminosity of less than 4%. |
| publishDate |
2016 |
| dc.date.none.fl_str_mv |
2016-11-01 |
| 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/11336/18880 Archer, A.; Benbow, W.; Bird, R.; Bourbeau, E.; Buchovecky, M.; et al.; Very high energy observations of the binaries V 404 CYG AND 4U 0115+634 during giant X-Ray outbursts; Iop Publishing; Astrophysical Journal; 831; 1; 1-11-2016; 113,1-5 0004-637X CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/18880 |
| identifier_str_mv |
Archer, A.; Benbow, W.; Bird, R.; Bourbeau, E.; Buchovecky, M.; et al.; Very high energy observations of the binaries V 404 CYG AND 4U 0115+634 during giant X-Ray outbursts; Iop Publishing; Astrophysical Journal; 831; 1; 1-11-2016; 113,1-5 0004-637X CONICET Digital CONICET |
| dc.language.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.3847/0004-637X/831/1/113 info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1608.06464 info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.3847/0004-637X/831/1/113/meta |
| 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 application/pdf |
| dc.publisher.none.fl_str_mv |
Iop Publishing |
| publisher.none.fl_str_mv |
Iop Publishing |
| 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 |
| _version_ |
1844613801838641152 |
| score |
13.070432 |