TeV and Multi-wavelength Observations of Mrk 421 in 2006-2008
- Autores
- Acciari, V. A.; Aliu, E.; Arlen, T.; Aune, T.; Beilicke, M.; Benbow, W.; Boltuch, D.; Bradbury, S. M.; Buckley, J. H.; Bugaev, V.; Byrum, K.; Cannon, A.; Cesarini, A.; Ciupik, L.; Cui, W.; Dickherber, R.; Duke, C.; Falcone, A.; Finley, J. P.; Finnegan, G.; Fortson, L.; Furniss, A.; Galante, N.; Gall, D.; Gillanders, G. H.; Godambe, S.; Grube, J.; Guenette, R.; Pichel, Ana Carolina; Rovero, Adrian Carlos; The Veritas Collaboration
- Año de publicación
- 2011
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We report on TeV gamma-ray observations of the blazar Mrk 421 (redshift of 0.031) with the VERITAS observatory and the Whipple 10m Cherenkov telescope. The excellent sensitivity of VERITAS allowed us to sample the TeV gamma-ray fluxes and energy spectra with unprecedented accuracy where Mrk 421 was detected in each of the pointings. A total of 47.3 hrs of VERITAS and 96 hrs of Whipple 10m data were acquired between January 2006 and June 2008. We present the results of a study of the TeV gamma-ray energy spectra as a function of time, and for different flux levels. On May 2nd and 3rd, 2008, bright TeV gamma-ray flares were detected with fluxes reaching the level of 10 Crab. The TeV gamma-ray data were complemented with radio, optical, and Xray observations, with flux variability found in all bands except for the radio waveband. The combination of the RXTE and Swift X-ray data reveal spectral hardening with increasing flux levels, often correlated with an increase of the source activity in TeV gamma-rays. Contemporaneous spectral energy distributions were generated for 18 nights, each of which are reasonably described by a one-zone SSC model.
Fil: Acciari, V. A.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Aliu, E.. Columbia University; Estados Unidos
Fil: Arlen, T.. University of California; Estados Unidos
Fil: Aune, T.. University of California; Estados Unidos
Fil: Beilicke, M.. University of Washington; Estados Unidos
Fil: Benbow, W.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Boltuch, D.. University of Delaware; Estados Unidos
Fil: Bradbury, S. M.. University of Leeds; Reino Unido
Fil: Buckley, J. H.. Washington University; Estados Unidos
Fil: Bugaev, V.. Washington University; Estados Unidos
Fil: Byrum, K.. Argonne National Laboratory; Estados Unidos
Fil: Cannon, A.. University College Dublin; Irlanda
Fil: Cesarini, A.. National University of Ireland Galway; Irlanda
Fil: Ciupik, L.. Adler Planetarium and Astronomy Museum,; Estados Unidos
Fil: Cui, W.. Purdue University; Estados Unidos
Fil: Dickherber, R.. University of Washington; Estados Unidos
Fil: Duke, C.. Grinnell College; Estados Unidos
Fil: Falcone, A.. University of Pennsylvania; Estados Unidos
Fil: Finley, J. P.. Purdue University; Estados Unidos
Fil: Finnegan, G.. University of Utah; Estados Unidos
Fil: Fortson, L.. Adler Planetarium and Astronomy Museum; Estados Unidos
Fil: Furniss, A.. University of California; Estados Unidos
Fil: Galante, N.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos
Fil: Gall, D.. University of Iowa; Estados Unidos
Fil: Gillanders, G. H.. National University of Ireland Galway; Irlanda
Fil: Godambe, S.. University of Utah; Estados Unidos
Fil: Grube, J.. Adler Planetarium and Astronomy Museum; Estados Unidos
Fil: Guenette, R.. McGill University; Canadá
Fil: Pichel, Ana Carolina. 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: 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
-
BL Lacertae objects: individual (Mrk 421)
Galaxies: jets
Galaxies: nuclei
Gamma rays: galaxies - 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:11336/20155
Ver los metadatos del registro completo
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TeV and Multi-wavelength Observations of Mrk 421 in 2006-2008Acciari, V. A.Aliu, E.Arlen, T.Aune, T.Beilicke, M.Benbow, W.Boltuch, D.Bradbury, S. M.Buckley, J. H.Bugaev, V.Byrum, K.Cannon, A.Cesarini, A.Ciupik, L.Cui, W.Dickherber, R.Duke, C.Falcone, A.Finley, J. P.Finnegan, G.Fortson, L.Furniss, A.Galante, N.Gall, D.Gillanders, G. H.Godambe, S.Grube, J.Guenette, R.Pichel, Ana CarolinaRovero, Adrian CarlosThe Veritas CollaborationBL Lacertae objects: individual (Mrk 421)Galaxies: jetsGalaxies: nucleiGamma rays: galaxieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We report on TeV gamma-ray observations of the blazar Mrk 421 (redshift of 0.031) with the VERITAS observatory and the Whipple 10m Cherenkov telescope. The excellent sensitivity of VERITAS allowed us to sample the TeV gamma-ray fluxes and energy spectra with unprecedented accuracy where Mrk 421 was detected in each of the pointings. A total of 47.3 hrs of VERITAS and 96 hrs of Whipple 10m data were acquired between January 2006 and June 2008. We present the results of a study of the TeV gamma-ray energy spectra as a function of time, and for different flux levels. On May 2nd and 3rd, 2008, bright TeV gamma-ray flares were detected with fluxes reaching the level of 10 Crab. The TeV gamma-ray data were complemented with radio, optical, and Xray observations, with flux variability found in all bands except for the radio waveband. The combination of the RXTE and Swift X-ray data reveal spectral hardening with increasing flux levels, often correlated with an increase of the source activity in TeV gamma-rays. Contemporaneous spectral energy distributions were generated for 18 nights, each of which are reasonably described by a one-zone SSC model.Fil: Acciari, V. A.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Aliu, E.. Columbia University; Estados UnidosFil: Arlen, T.. University of California; Estados UnidosFil: Aune, T.. University of California; Estados UnidosFil: Beilicke, M.. University of Washington; Estados UnidosFil: Benbow, W.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Boltuch, D.. University of Delaware; Estados UnidosFil: Bradbury, S. M.. University of Leeds; Reino UnidoFil: Buckley, J. H.. Washington University; Estados UnidosFil: Bugaev, V.. Washington University; Estados UnidosFil: Byrum, K.. Argonne National Laboratory; Estados UnidosFil: Cannon, A.. University College Dublin; IrlandaFil: Cesarini, A.. National University of Ireland Galway; IrlandaFil: Ciupik, L.. Adler Planetarium and Astronomy Museum,; Estados UnidosFil: Cui, W.. Purdue University; Estados UnidosFil: Dickherber, R.. University of Washington; Estados UnidosFil: Duke, C.. Grinnell College; Estados UnidosFil: Falcone, A.. University of Pennsylvania; Estados UnidosFil: Finley, J. P.. Purdue University; Estados UnidosFil: Finnegan, G.. University of Utah; Estados UnidosFil: Fortson, L.. Adler Planetarium and Astronomy Museum; Estados UnidosFil: Furniss, A.. University of California; Estados UnidosFil: Galante, N.. Harvard-Smithsonian Center for Astrophysics; Estados UnidosFil: Gall, D.. University of Iowa; Estados UnidosFil: Gillanders, G. H.. National University of Ireland Galway; IrlandaFil: Godambe, S.. University of Utah; Estados UnidosFil: Grube, J.. Adler Planetarium and Astronomy Museum; Estados UnidosFil: Guenette, R.. McGill University; CanadáFil: Pichel, Ana Carolina. 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: 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 Publishing2011-09-01info: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/11336/20155Acciari, V. A.; Aliu, E.; Arlen, T.; Aune, T.; Beilicke, M.; et al.; TeV and Multi-wavelength Observations of Mrk 421 in 2006-2008; IOP Publishing; Astrophysical Journal; 738; 1; 1-9-2011; 1-19; 250004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/0004-637X/738/1/25info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0004-637X/738/1/25info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1106.1210info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:53:09Zoai:ri.conicet.gov.ar:11336/20155instacron: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 09:53:09.775CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
TeV and Multi-wavelength Observations of Mrk 421 in 2006-2008 |
| title |
TeV and Multi-wavelength Observations of Mrk 421 in 2006-2008 |
| spellingShingle |
TeV and Multi-wavelength Observations of Mrk 421 in 2006-2008 Acciari, V. A. BL Lacertae objects: individual (Mrk 421) Galaxies: jets Galaxies: nuclei Gamma rays: galaxies |
| title_short |
TeV and Multi-wavelength Observations of Mrk 421 in 2006-2008 |
| title_full |
TeV and Multi-wavelength Observations of Mrk 421 in 2006-2008 |
| title_fullStr |
TeV and Multi-wavelength Observations of Mrk 421 in 2006-2008 |
| title_full_unstemmed |
TeV and Multi-wavelength Observations of Mrk 421 in 2006-2008 |
| title_sort |
TeV and Multi-wavelength Observations of Mrk 421 in 2006-2008 |
| dc.creator.none.fl_str_mv |
Acciari, V. A. Aliu, E. Arlen, T. Aune, T. Beilicke, M. Benbow, W. Boltuch, D. Bradbury, S. M. Buckley, J. H. Bugaev, V. Byrum, K. Cannon, A. Cesarini, A. Ciupik, L. Cui, W. Dickherber, R. Duke, C. Falcone, A. Finley, J. P. Finnegan, G. Fortson, L. Furniss, A. Galante, N. Gall, D. Gillanders, G. H. Godambe, S. Grube, J. Guenette, R. Pichel, Ana Carolina Rovero, Adrian Carlos The Veritas Collaboration |
| author |
Acciari, V. A. |
| author_facet |
Acciari, V. A. Aliu, E. Arlen, T. Aune, T. Beilicke, M. Benbow, W. Boltuch, D. Bradbury, S. M. Buckley, J. H. Bugaev, V. Byrum, K. Cannon, A. Cesarini, A. Ciupik, L. Cui, W. Dickherber, R. Duke, C. Falcone, A. Finley, J. P. Finnegan, G. Fortson, L. Furniss, A. Galante, N. Gall, D. Gillanders, G. H. Godambe, S. Grube, J. Guenette, R. Pichel, Ana Carolina Rovero, Adrian Carlos The Veritas Collaboration |
| author_role |
author |
| author2 |
Aliu, E. Arlen, T. Aune, T. Beilicke, M. Benbow, W. Boltuch, D. Bradbury, S. M. Buckley, J. H. Bugaev, V. Byrum, K. Cannon, A. Cesarini, A. Ciupik, L. Cui, W. Dickherber, R. Duke, C. Falcone, A. Finley, J. P. Finnegan, G. Fortson, L. Furniss, A. Galante, N. Gall, D. Gillanders, G. H. Godambe, S. Grube, J. Guenette, R. Pichel, Ana Carolina 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 |
BL Lacertae objects: individual (Mrk 421) Galaxies: jets Galaxies: nuclei Gamma rays: galaxies |
| topic |
BL Lacertae objects: individual (Mrk 421) Galaxies: jets Galaxies: nuclei Gamma rays: galaxies |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
We report on TeV gamma-ray observations of the blazar Mrk 421 (redshift of 0.031) with the VERITAS observatory and the Whipple 10m Cherenkov telescope. The excellent sensitivity of VERITAS allowed us to sample the TeV gamma-ray fluxes and energy spectra with unprecedented accuracy where Mrk 421 was detected in each of the pointings. A total of 47.3 hrs of VERITAS and 96 hrs of Whipple 10m data were acquired between January 2006 and June 2008. We present the results of a study of the TeV gamma-ray energy spectra as a function of time, and for different flux levels. On May 2nd and 3rd, 2008, bright TeV gamma-ray flares were detected with fluxes reaching the level of 10 Crab. The TeV gamma-ray data were complemented with radio, optical, and Xray observations, with flux variability found in all bands except for the radio waveband. The combination of the RXTE and Swift X-ray data reveal spectral hardening with increasing flux levels, often correlated with an increase of the source activity in TeV gamma-rays. Contemporaneous spectral energy distributions were generated for 18 nights, each of which are reasonably described by a one-zone SSC model. Fil: Acciari, V. A.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Aliu, E.. Columbia University; Estados Unidos Fil: Arlen, T.. University of California; Estados Unidos Fil: Aune, T.. University of California; Estados Unidos Fil: Beilicke, M.. University of Washington; Estados Unidos Fil: Benbow, W.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Boltuch, D.. University of Delaware; Estados Unidos Fil: Bradbury, S. M.. University of Leeds; Reino Unido Fil: Buckley, J. H.. Washington University; Estados Unidos Fil: Bugaev, V.. Washington University; Estados Unidos Fil: Byrum, K.. Argonne National Laboratory; Estados Unidos Fil: Cannon, A.. University College Dublin; Irlanda Fil: Cesarini, A.. National University of Ireland Galway; Irlanda Fil: Ciupik, L.. Adler Planetarium and Astronomy Museum,; Estados Unidos Fil: Cui, W.. Purdue University; Estados Unidos Fil: Dickherber, R.. University of Washington; Estados Unidos Fil: Duke, C.. Grinnell College; Estados Unidos Fil: Falcone, A.. University of Pennsylvania; Estados Unidos Fil: Finley, J. P.. Purdue University; Estados Unidos Fil: Finnegan, G.. University of Utah; Estados Unidos Fil: Fortson, L.. Adler Planetarium and Astronomy Museum; Estados Unidos Fil: Furniss, A.. University of California; Estados Unidos Fil: Galante, N.. Harvard-Smithsonian Center for Astrophysics; Estados Unidos Fil: Gall, D.. University of Iowa; Estados Unidos Fil: Gillanders, G. H.. National University of Ireland Galway; Irlanda Fil: Godambe, S.. University of Utah; Estados Unidos Fil: Grube, J.. Adler Planetarium and Astronomy Museum; Estados Unidos Fil: Guenette, R.. McGill University; Canadá Fil: Pichel, Ana Carolina. 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: 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 |
We report on TeV gamma-ray observations of the blazar Mrk 421 (redshift of 0.031) with the VERITAS observatory and the Whipple 10m Cherenkov telescope. The excellent sensitivity of VERITAS allowed us to sample the TeV gamma-ray fluxes and energy spectra with unprecedented accuracy where Mrk 421 was detected in each of the pointings. A total of 47.3 hrs of VERITAS and 96 hrs of Whipple 10m data were acquired between January 2006 and June 2008. We present the results of a study of the TeV gamma-ray energy spectra as a function of time, and for different flux levels. On May 2nd and 3rd, 2008, bright TeV gamma-ray flares were detected with fluxes reaching the level of 10 Crab. The TeV gamma-ray data were complemented with radio, optical, and Xray observations, with flux variability found in all bands except for the radio waveband. The combination of the RXTE and Swift X-ray data reveal spectral hardening with increasing flux levels, often correlated with an increase of the source activity in TeV gamma-rays. Contemporaneous spectral energy distributions were generated for 18 nights, each of which are reasonably described by a one-zone SSC model. |
| publishDate |
2011 |
| dc.date.none.fl_str_mv |
2011-09-01 |
| 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/11336/20155 Acciari, V. A.; Aliu, E.; Arlen, T.; Aune, T.; Beilicke, M.; et al.; TeV and Multi-wavelength Observations of Mrk 421 in 2006-2008; IOP Publishing; Astrophysical Journal; 738; 1; 1-9-2011; 1-19; 25 0004-637X CONICET Digital CONICET |
| url |
http://hdl.handle.net/11336/20155 |
| identifier_str_mv |
Acciari, V. A.; Aliu, E.; Arlen, T.; Aune, T.; Beilicke, M.; et al.; TeV and Multi-wavelength Observations of Mrk 421 in 2006-2008; IOP Publishing; Astrophysical Journal; 738; 1; 1-9-2011; 1-19; 25 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/10.1088/0004-637X/738/1/25 info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0004-637X/738/1/25 info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1106.1210 |
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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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IOP Publishing |
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IOP Publishing |
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