Tev Observations of the Variability and Spectrum of Markarian 421

The TeV energy spectrum of Markarian 421 measured in a high flaring state

Konopelko, A.
Cui, W.
Duke, C.
Finley, J. P.

January 2008

The BL Lac object (blazar) Mrk 421 was observed during its outburst in 2004 April wi...

The TeV energy spectrum of Markarian 421 measured in a high flaring state

Konopelko, A.
Cui, W.
Duke, C.
Finley, J. P.

January 2008

The BL Lac object (blazar) Mrk 421 was observed during its outburst in 2004 April wi...

Very high energy gamma-ray emission from the blazar Markarian 421

Schubnell, M S
Akerlof, Carl W
Buckley, S B J
Carter-Lewis, D A
Cawley, M F
Chantell, M C
Connaughton, V
Fegan, D J
Fennell, S
Gaidos, J A
Hillas, A M
Meyer, D I
Mohanty, G B
Rose, J
Rovero, A C
Sembroski, G H
Weekes, T C
Wilson, C
Zweerink, J A

February 1996

Very high energy gamma-ray emission from the BL Lac object Markarian 421 has been detected over thre...

TeV Observations of the Variability and Spectrum of Markarian 501

Quinn, J
Bond, IH
Boyle, PJ
Buckley, JH
Bradbury, SM
Breslin, AC
Burdett, AM
Gordo, J Bussons
Carter-Lewis, DA
Catanese, M
Cawley, MF
Fegan, DJ
Finley, JP
Gaidos, JA
Hall, A
Hillas, AM
Krennrich, F
Lamb, RC
Lessard, RW
Masterson, C
McEnery, JE
Mohanty, G
Moriarty, P
Rodgers, AJ
Rose, HJ
Samuelson, FW
Sembroski, GH
Srinivasan, R
Weeke, TC
Zweerink, J

January 1997

Markarian 501 is only the second extragalactic source to be detected with high statistical certainty...

Observation of Markarian 421 in TeV gamma rays over a 14-year time span

Acciari, V. A.
Arlen, T.
Aune, T.
Benbow, W.
Bird, R.
Bouvier, A.
Bradbury, S. M.
Buckley, J. H.
Bugaev, V.
de la Calle Perez, I.
Carter Lewis, D. A.
Cesarini, A.
Ciupik, L.
Collins Hughes, E.
Connolly, M. P.
Cui, W.
Duke, C.
Dumm, J.
Falcone, A.
Federici, S.
Fegan, D. J.
Fegan, S. J.
Finley, J. P.
Finnegan, G.
Fortson, L.
Gaidos, J.
Galante, N.
Gall, D.
Pichel, Ana Carolina
Rovero, Adrian Carlos
The Veritas Collaboration

August 2017

The variability of the blazar Markarian 421 in TeV gamma rays over a 14-year time period has been ex...

TEV gamma ray emission from the active galactic nucleus Markarian 421

Schubnell, M. S. (Michael S.)
Akerlof, Carl W.
Cawley, M. F.
Chantell, M.
Connaughton, V.
Fegan, D. J.
Fennell, S.
Gaidos, J. A.
Hillas, A. M.
Kerrick, A. D.
Kwok, P.
Lamb, R. C.
Lewis, D. A.
Meyer, D. I.
Mohanty, G.
Rose, J.
Rovero, A. C.
Sembroski, G. H.
Weekes, T. C.
West, M.
Whitaker, T.
Wilson, C. L.

June 1994

TeV energy gamma ray emission from the blazar Markarian 421 was detected with the Whipple 10 meter i...

Observation of Markarian 421 in TeV Gamma Rays Over a 14-Year Time Span

Acciari, V. A.
McEnery, Julie E.
Bugaev, V.
Bouvier, A.
Arlen, T.
Bradbury, S. M.
Bird, R.
Benbow, W.
Buckley, J. H.
Aune, T.

January 2013

The variability of the blazar Markarian 421 in TeV gamma rays over a 14-year time period has been ex...

The TeV Gamma-Ray Spectrum of Markarian 421 During an Intense Flare

Zweerink, J.
Akerlof, C. W.
Biller, S. D.
Boyle, P.
Buckley, J. H.
Burdett, A.
Bussons Gordo, J.
Carter-Lewis, D. A.
Catanese, M.
Cawley, M. F.
Fegan, D. J.
Finley, John P.
Gaidos, J. A.
Hillas, A. M.
Krennrich, F.
Lamb, R. C.
Lessard, R. W.
McEnery, J. E.
Mohanty, G.
Quinn, J.
Rodgers, A. J.
Rose, H. J.
Samuelson, F. W.
Schubnell, S.
Sembroski, G.
Srinivasan, R.
Weekes, T. C.
Wilson, C.

December 1997

We present the gamma-ray spectrum of the BL Lacertae object, Markarian 421, above 500 GeV during its...

The TeV Gamma-Ray Spectrum of Markarian 421 During an Intense Flare

Zweerink, J.
Akerlof, C. W.
Biller, S. D.
Boyle, P.
Buckley, J. H.
Burdett, A.
Bussons Gordo, J.
Carter-Lewis, D. A.
Catanese, M.
Cawley, M. F.
Fegan, D. J.
Finley, John P.
Gaidos, J. A.
Hillas, A. M.
Krennrich, F.
Lamb, R. C.
Lessard, R. W.
McEnery, J. E.
Mohanty, G.
Quinn, J.
Rodgers, A. J.
Rose, H. J.
Samuelson, F. W.
Schubnell, S.
Sembroski, G.
Srinivasan, R.
Weekes, T. C.
Wilson, C.

December 1997

We present the gamma-ray spectrum of the BL Lacertae object, Markarian 421, above 500 GeV during its...

Discovery Of Spectral Variability Of Markarian 421 At Tev Energies

Reynolds, P. T.
al., Et.

August 2002

The detection of spectral variability of the γ-ray blazar Mrk 421 at TeV energies is reported. Obser...

Observation of Markarian 421 in TeV gamma rays over a 14-year time span

Acciari, V. A.
Arlen, T.
Carter-Lewis, D. A.
Cesarini, A.
Ciupik, L.
Collins-Hughes, E.
Connolly, M. P.
Cui, W.
Duke, C.
Dumm, J.
Falcone, A.
Federici, S.
Aune, T.
Fegan, D. J.
Fegan, S. J.
Finley, J. P.
Finnegan, G.
Fortson, L.
Gaidos, J.
Galante, N.
Gall, D.
Gibbs, K.
Gillanders, G. H.
Benbow, W.
Griffin, S.
Grube, J.
Gyuk, G.
Hanna, D.
Horan, D.
Humensky, T. B.
Kaaret, P.
Kertzman, M.
Khassen, Y.
Kieda, D.
Bird, R.
Krawczynski, H.
Krennrich, F.
Lang, M. J.
McEnery, J. E.
Madhavan, A. S.
Moriarty, P.
Nelson, T.
O’Faoláin de Bhróithe, A.
Ong, R. A.
Orr, M.
Bouvier, A.
Otte, A. N.
Perkins, J. S.
Petry, D.
Pichel, A.
Pohl, M.
Quinn, J.
Ragan, K.
Reynolds, T.
Roache, E.
Rovero, A.
Bradbury, S. M.
Schroedter, M.
Sembroski, G. H.
Smith, A.
Telezhinsky, I.
Theiling, M.
Toner, J.
Tyler, J.
Varlotta, A.
Vivier, M.
Wakely, S. P.
Buckley, J. H.
Ward, J. E.
Weekes, T. C.
Weinstein, A.
Welsing, R.
Williams, D. A.
Wissel, S.
Bugaev, V.
de la Calle Perez, I.

January 2014

The variability of the blazar Markarian 421 in TeV gamma rays over a 14-year time period has been ex...

Observation of Markarian 421 in TeV gamma rays over a 14-year time span

Acciari, V. A.
Arlen, T.
Carter-Lewis, D. A.
Cesarini, A.
Ciupik, L.
Collins-Hughes, E.
Connolly, M. P.
Cui, W.
Duke, C.
Dumm, J.
Falcone, A.
Federici, S.
Aune, T.
Fegan, D. J.
Fegan, S. J.
Finley, J. P.
Finnegan, G.
Fortson, L.
Gaidos, J.
Galante, N.
Gall, D.
Gibbs, K.
Gillanders, G. H.
Benbow, W.
Griffin, S.
Grube, J.
Gyuk, G.
Hanna, D.
Horan, D.
Humensky, T. B.
Kaaret, P.
Kertzman, M.
Khassen, Y.
Kieda, D.
Bird, R.
Krawczynski, H.
Krennrich, F.
Lang, M. J.
McEnery, J. E.
Madhavan, A. S.
Moriarty, P.
Nelson, T.
O’Faoláin de Bhróithe, A.
Ong, R. A.
Orr, M.
Bouvier, A.
Otte, A. N.
Perkins, J. S.
Petry, D.
Pichel, A.
Pohl, M.
Quinn, J.
Ragan, K.
Reynolds, T.
Roache, E.
Rovero, A.
Bradbury, S. M.
Schroedter, M.
Sembroski, G. H.
Smith, A.
Telezhinsky, I.
Theiling, M.
Toner, J.
Tyler, J.
Varlotta, A.
Vivier, M.
Wakely, S. P.
Buckley, J. H.
Ward, J. E.
Weekes, T. C.
Weinstein, A.
Welsing, R.
Williams, D. A.
Wissel, S.
Bugaev, V.
de la Calle Perez, I.

January 2014

The variability of the blazar Markarian 421 in TeV gamma rays over a 14-year time period has been ex...

Discovery of Spectral Variability of Markarian 421 at TeV Energies

Lang, Mark
Gillanders, Gary

January 2002

The detection of spectral variability of the gamma-ray blazar Mrk 421 at TeV energies is reported. O...

Detection of TeV gamma rays from the AGN Markarian 421

Schubnell, M. S. (Michael S.)
Akerlof, Carl W.
Cawley, M. F.
Chantell, M.
Fegan, D. J.
Fennell, S.
O’Flaherty, K. S.
Gaidos, J. A.
Hagan, J.
Hillas, A. M.
Jiang, Y.
Kerrick, A. D.
Lamb, R. C.
Lawrence, M. A.
Lewis, D. A.
Meyer, D. I.
Mohanty, G.
Punch, M.
Reynolds, P. T.
Rovero, A. C.
Sembroski, G. H.
Weekes, T. C.
Whitaker, T.
Wilson, C. L.

June 1993

We present here the detection of TeV gamma rays from the extragalactic source Markarian 421. Observa...

Hour-Scale Multiwavelength Variability in Markarian 421

Catanese, M
Bond, I H
Bradbury, S M
Breslin, A C
Buckley, J H
Burdett, A M
Carter-Lewis, D A
Cawley, M F
Dunlea, S
D'Vali, M
Fegan, D J
Fegan, S J
Finley, J P
Gaidos, J A
Hall, T A
Hillas, A M
Horan, D
Knapp, J
Krennrich, F
Le Bohec, S
Lessard, R W
Masterson, C
Moriarty, P
Quinn, J
Rose, H J
Samuelson, F W
Sembroski, G H
Vasilev, V
Weekes, T C
Maraschi, L
Fossati, G
Tavecchio, F
Chiappetti, L
Celotti, A
Ghisellini, G
Grandi, P
Pian, E
Tagliaferri, G
Treves, A

January 1999

Markarian 421 was observed for about four days with BeppoSAX and the Whipple Observatory gamma-ray t...

The TeV energy spectrum of Markarian 421 measured in a high flaring state

Konopelko, A.
Cui, W.
Duke, C.
Finley, J. P.

January 2008

The BL Lac object (blazar) Mrk 421 was observed during its outburst in 2004 April wi...

The TeV energy spectrum of Markarian 421 measured in a high flaring state

Konopelko, A.
Cui, W.
Duke, C.
Finley, J. P.

January 2008

The BL Lac object (blazar) Mrk 421 was observed during its outburst in 2004 April wi...

Very high energy gamma-ray emission from the blazar Markarian 421

Schubnell, M S
Akerlof, Carl W
Buckley, S B J
Carter-Lewis, D A
Cawley, M F
Chantell, M C
Connaughton, V
Fegan, D J
Fennell, S
Gaidos, J A
Hillas, A M
Meyer, D I
Mohanty, G B
Rose, J
Rovero, A C
Sembroski, G H
Weekes, T C
Wilson, C
Zweerink, J A

February 1996

Very high energy gamma-ray emission from the BL Lac object Markarian 421 has been detected over thre...

TeV Observations of the Variability and Spectrum of Markarian 501

Quinn, J
Bond, IH
Boyle, PJ
Buckley, JH
Bradbury, SM
Breslin, AC
Burdett, AM
Gordo, J Bussons
Carter-Lewis, DA
Catanese, M
Cawley, MF
Fegan, DJ
Finley, JP
Gaidos, JA
Hall, A
Hillas, AM
Krennrich, F
Lamb, RC
Lessard, RW
Masterson, C
McEnery, JE
Mohanty, G
Moriarty, P
Rodgers, AJ
Rose, HJ
Samuelson, FW
Sembroski, GH
Srinivasan, R
Weeke, TC
Zweerink, J

January 1997

Markarian 501 is only the second extragalactic source to be detected with high statistical certainty...

Observation of Markarian 421 in TeV gamma rays over a 14-year time span

Acciari, V. A.
Arlen, T.
Aune, T.
Benbow, W.
Bird, R.
Bouvier, A.
Bradbury, S. M.
Buckley, J. H.
Bugaev, V.
de la Calle Perez, I.
Carter Lewis, D. A.
Cesarini, A.
Ciupik, L.
Collins Hughes, E.
Connolly, M. P.
Cui, W.
Duke, C.
Dumm, J.
Falcone, A.
Federici, S.
Fegan, D. J.
Fegan, S. J.
Finley, J. P.
Finnegan, G.
Fortson, L.
Gaidos, J.
Galante, N.
Gall, D.
Pichel, Ana Carolina
Rovero, Adrian Carlos
The Veritas Collaboration

August 2017

The variability of the blazar Markarian 421 in TeV gamma rays over a 14-year time period has been ex...

TEV gamma ray emission from the active galactic nucleus Markarian 421

Schubnell, M. S. (Michael S.)
Akerlof, Carl W.
Cawley, M. F.
Chantell, M.
Connaughton, V.
Fegan, D. J.
Fennell, S.
Gaidos, J. A.
Hillas, A. M.
Kerrick, A. D.
Kwok, P.
Lamb, R. C.
Lewis, D. A.
Meyer, D. I.
Mohanty, G.
Rose, J.
Rovero, A. C.
Sembroski, G. H.
Weekes, T. C.
West, M.
Whitaker, T.
Wilson, C. L.

June 1994

TeV energy gamma ray emission from the blazar Markarian 421 was detected with the Whipple 10 meter i...

Observation of Markarian 421 in TeV Gamma Rays Over a 14-Year Time Span

Acciari, V. A.
McEnery, Julie E.
Bugaev, V.
Bouvier, A.
Arlen, T.
Bradbury, S. M.
Bird, R.
Benbow, W.
Buckley, J. H.
Aune, T.

January 2013

The variability of the blazar Markarian 421 in TeV gamma rays over a 14-year time period has been ex...

The TeV Gamma-Ray Spectrum of Markarian 421 During an Intense Flare

Zweerink, J.
Akerlof, C. W.
Biller, S. D.
Boyle, P.
Buckley, J. H.
Burdett, A.
Bussons Gordo, J.
Carter-Lewis, D. A.
Catanese, M.
Cawley, M. F.
Fegan, D. J.
Finley, John P.
Gaidos, J. A.
Hillas, A. M.
Krennrich, F.
Lamb, R. C.
Lessard, R. W.
McEnery, J. E.
Mohanty, G.
Quinn, J.
Rodgers, A. J.
Rose, H. J.
Samuelson, F. W.
Schubnell, S.
Sembroski, G.
Srinivasan, R.
Weekes, T. C.
Wilson, C.

December 1997

We present the gamma-ray spectrum of the BL Lacertae object, Markarian 421, above 500 GeV during its...

The TeV Gamma-Ray Spectrum of Markarian 421 During an Intense Flare

Zweerink, J.
Akerlof, C. W.
Biller, S. D.
Boyle, P.
Buckley, J. H.
Burdett, A.
Bussons Gordo, J.
Carter-Lewis, D. A.
Catanese, M.
Cawley, M. F.
Fegan, D. J.
Finley, John P.
Gaidos, J. A.
Hillas, A. M.
Krennrich, F.
Lamb, R. C.
Lessard, R. W.
McEnery, J. E.
Mohanty, G.
Quinn, J.
Rodgers, A. J.
Rose, H. J.
Samuelson, F. W.
Schubnell, S.
Sembroski, G.
Srinivasan, R.
Weekes, T. C.
Wilson, C.

December 1997

We present the gamma-ray spectrum of the BL Lacertae object, Markarian 421, above 500 GeV during its...

Discovery Of Spectral Variability Of Markarian 421 At Tev Energies

Reynolds, P. T.
al., Et.

August 2002

The detection of spectral variability of the γ-ray blazar Mrk 421 at TeV energies is reported. Obser...

Observation of Markarian 421 in TeV gamma rays over a 14-year time span

Acciari, V. A.
Arlen, T.
Carter-Lewis, D. A.
Cesarini, A.
Ciupik, L.
Collins-Hughes, E.
Connolly, M. P.
Cui, W.
Duke, C.
Dumm, J.
Falcone, A.
Federici, S.
Aune, T.
Fegan, D. J.
Fegan, S. J.
Finley, J. P.
Finnegan, G.
Fortson, L.
Gaidos, J.
Galante, N.
Gall, D.
Gibbs, K.
Gillanders, G. H.
Benbow, W.
Griffin, S.
Grube, J.
Gyuk, G.
Hanna, D.
Horan, D.
Humensky, T. B.
Kaaret, P.
Kertzman, M.
Khassen, Y.
Kieda, D.
Bird, R.
Krawczynski, H.
Krennrich, F.
Lang, M. J.
McEnery, J. E.
Madhavan, A. S.
Moriarty, P.
Nelson, T.
O’Faoláin de Bhróithe, A.
Ong, R. A.
Orr, M.
Bouvier, A.
Otte, A. N.
Perkins, J. S.
Petry, D.
Pichel, A.
Pohl, M.
Quinn, J.
Ragan, K.
Reynolds, T.
Roache, E.
Rovero, A.
Bradbury, S. M.
Schroedter, M.
Sembroski, G. H.
Smith, A.
Telezhinsky, I.
Theiling, M.
Toner, J.
Tyler, J.
Varlotta, A.
Vivier, M.
Wakely, S. P.
Buckley, J. H.
Ward, J. E.
Weekes, T. C.
Weinstein, A.
Welsing, R.
Williams, D. A.
Wissel, S.
Bugaev, V.
de la Calle Perez, I.

January 2014

The variability of the blazar Markarian 421 in TeV gamma rays over a 14-year time period has been ex...

Observation of Markarian 421 in TeV gamma rays over a 14-year time span

Acciari, V. A.
Arlen, T.
Carter-Lewis, D. A.
Cesarini, A.
Ciupik, L.
Collins-Hughes, E.
Connolly, M. P.
Cui, W.
Duke, C.
Dumm, J.
Falcone, A.
Federici, S.
Aune, T.
Fegan, D. J.
Fegan, S. J.
Finley, J. P.
Finnegan, G.
Fortson, L.
Gaidos, J.
Galante, N.
Gall, D.
Gibbs, K.
Gillanders, G. H.
Benbow, W.
Griffin, S.
Grube, J.
Gyuk, G.
Hanna, D.
Horan, D.
Humensky, T. B.
Kaaret, P.
Kertzman, M.
Khassen, Y.
Kieda, D.
Bird, R.
Krawczynski, H.
Krennrich, F.
Lang, M. J.
McEnery, J. E.
Madhavan, A. S.
Moriarty, P.
Nelson, T.
O’Faoláin de Bhróithe, A.
Ong, R. A.
Orr, M.
Bouvier, A.
Otte, A. N.
Perkins, J. S.
Petry, D.
Pichel, A.
Pohl, M.
Quinn, J.
Ragan, K.
Reynolds, T.
Roache, E.
Rovero, A.
Bradbury, S. M.
Schroedter, M.
Sembroski, G. H.
Smith, A.
Telezhinsky, I.
Theiling, M.
Toner, J.
Tyler, J.
Varlotta, A.
Vivier, M.
Wakely, S. P.
Buckley, J. H.
Ward, J. E.
Weekes, T. C.
Weinstein, A.
Welsing, R.
Williams, D. A.
Wissel, S.
Bugaev, V.
de la Calle Perez, I.

January 2014

The variability of the blazar Markarian 421 in TeV gamma rays over a 14-year time period has been ex...

Discovery of Spectral Variability of Markarian 421 at TeV Energies

Lang, Mark
Gillanders, Gary

January 2002

The detection of spectral variability of the gamma-ray blazar Mrk 421 at TeV energies is reported. O...

Detection of TeV gamma rays from the AGN Markarian 421

Schubnell, M. S. (Michael S.)
Akerlof, Carl W.
Cawley, M. F.
Chantell, M.
Fegan, D. J.
Fennell, S.
O’Flaherty, K. S.
Gaidos, J. A.
Hagan, J.
Hillas, A. M.
Jiang, Y.
Kerrick, A. D.
Lamb, R. C.
Lawrence, M. A.
Lewis, D. A.
Meyer, D. I.
Mohanty, G.
Punch, M.
Reynolds, P. T.
Rovero, A. C.
Sembroski, G. H.
Weekes, T. C.
Whitaker, T.
Wilson, C. L.

June 1993

We present here the detection of TeV gamma rays from the extragalactic source Markarian 421. Observa...

Hour-Scale Multiwavelength Variability in Markarian 421

Catanese, M
Bond, I H
Bradbury, S M
Breslin, A C
Buckley, J H
Burdett, A M
Carter-Lewis, D A
Cawley, M F
Dunlea, S
D'Vali, M
Fegan, D J
Fegan, S J
Finley, J P
Gaidos, J A
Hall, T A
Hillas, A M
Horan, D
Knapp, J
Krennrich, F
Le Bohec, S
Lessard, R W
Masterson, C
Moriarty, P
Quinn, J
Rose, H J
Samuelson, F W
Sembroski, G H
Vasilev, V
Weekes, T C
Maraschi, L
Fossati, G
Tavecchio, F
Chiappetti, L
Celotti, A
Ghisellini, G
Grandi, P
Pian, E
Tagliaferri, G
Treves, A

January 1999

Markarian 421 was observed for about four days with BeppoSAX and the Whipple Observatory gamma-ray t...

The TeV energy spectrum of Markarian 421 measured in a high flaring state

Konopelko, A.
Cui, W.
Duke, C.
Finley, J. P.

January 2008

The BL Lac object (blazar) Mrk 421 was observed during its outburst in 2004 April wi...

The TeV energy spectrum of Markarian 421 measured in a high flaring state

Konopelko, A.
Cui, W.
Duke, C.
Finley, J. P.

January 2008

The BL Lac object (blazar) Mrk 421 was observed during its outburst in 2004 April wi...

Very high energy gamma-ray emission from the blazar Markarian 421

Schubnell, M S
Akerlof, Carl W
Buckley, S B J
Carter-Lewis, D A
Cawley, M F
Chantell, M C
Connaughton, V
Fegan, D J
Fennell, S
Gaidos, J A
Hillas, A M
Meyer, D I
Mohanty, G B
Rose, J
Rovero, A C
Sembroski, G H
Weekes, T C
Wilson, C
Zweerink, J A

February 1996

Very high energy gamma-ray emission from the BL Lac object Markarian 421 has been detected over thre...

Tev Observations of the Variability and Spectrum of Markarian 421

Abstract

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Tev Observations of the Variability and Spectrum of Markarian 421

Abstract

Extracted data

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