Very High Energy Outburst of Markarian 501 in May 2009

Aliu, E.; Archambault, S.; Archer, A.; Arlen, T.; Aune, T.; Barnacka, A.; Behera, B.; Beilicke, M.; Benbow, W.; Berger, K.; Bird, R.; Boettcher, M.; Bouvier, A.; Buchovecky, M.; Buckley, J. H.; Bugaev, V.; Cardenzana, J. V.; Cerruti, M.; Cesarini, A.; Chen, X.; Ciupik, L.; Collins-Hughes, E.; Connolly, M. P.; Cui, W.; Dumm, J.; Eisch, J. D.; Falcone, A.; Federici, S.; Feng, Q.; Finley, J. P.; Fleischhack, H.; Fortin, P.; Fortson, L.; Furniss, A.; Galante, N.; Gall, D.; Gillanders, G. H.; Griffin, S.; Griffith, S. T.; Grube, J.; Gyuk, G.; Huetten, M.; Hakansson, N.; Holder, Y.; Hughes, G.; Humensky, T. B.; Johnson, C. A.; Kaaret, P.; Kar, P.; Kelley-Hoskins, N.; Kertzman, M.; Khassen, Y.; Kieda, D.; Krause, M.; Krawczynski, H.; Krennrich, F.; Lang, M. J.; Madhavan, A. S.; Maier, G.; McArthur, S.; McCann, A.; Meagher, K.; Millis, J.; Moriarty, P.; Mukherjee, R.; Nieto, D.; de Bhroithe, O'Faolain; Ong, R. A.; Orr, M.; Otte, A. N.; Pandel, D.; Park, N.; Pelassa, V.; Perkins, J. S.; Pichel, A.; Pohl, M.; Popkow, A.; Quinn, J.; Ragan, K.; Reyes, L. C.; Reynolds, P. T.; Roache, E.; Rousselle, J.; Rovero, A. C.; Saxon, D. B.; Sembroski, G. H.; Shahinyan, K.; Sheidaei, F.; Skole, C.; Smith, A. W.; Staszak, D.; Telezhinsky, I.; Theiling, M.; Todd, N. W.; Tucci, J. V.; Tyler, J.; Varlotta, A.; Vassilev, V. V.; Vincent, S,; Wakely, S. P.; Weiner, O. M.; Weinstein, A.; Williams, D. A.; Zitzer, B.; Baring, M. G.; Becerra Gonzalex, J.; Cillis, A. N.; Horan, D.; Paneque, D.

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help

Back to Results

Very High Energy Outburst of Markarian 501 in May 2009

The very high energy (VHE; E great than 100 GeV) blazar Markarian 501 was observed between April 17 and May 5 (MJD 5493854956), 2009, as part of an extensive multi-wavelength campaign from radio to VHE. Strong VHE -ray activity was detected on May 1st with Whipple and VERITAS, when the flux (E greater than 400 GeV) increased to 10 times the pre-flare baseline flux (3.9 x 10(exp -11 ph cm(exp -2 S(exp -1), reaching five times the flux of the Crab Nebula. This coincided with a decrease in the optical polarization and a rotation of the polarization angle by 15deg. This VHE flare showed a fast flux variation with an increase of a factor approximately 4 in 25 min, and a falling time of approximately 50 min. We present the observations of the quiescent state previous to the flare and of the high state after the flare, focusing on the flux and spectral variability from Whipple, VERITAS, Fermi-LAT, RXTE, and Swift combined with optical and radio data.

Document ID

20170006231

Acquisition Source

Goddard Space Flight Center

Document Type

Reprint (Version printed in journal)

External Source(s)

doi:10.1051/0004-6361/201628744

Authors

Aliu, E.

(Columbia Univ. New York, NY, United States)

Archambault, S.

(McGill Univ. Montreal, Quebec, Canada)

Archer, A.

(Washington Univ. Saint Louis, MO, United States)

Arlen, T.

(California Univ. Los Angeles, CA, United States)

Aune, T.

(California Univ. Los Angeles, CA, United States)

Barnacka, A.

(Harvard-Smithsonian Center for Astrophysics Cambridge, MA, United States)

Behera, B.

(Deutsches Elektronen-Synchrotron Zeuthen, Germany)

Beilicke, M.

(Washington Univ. Saint Louis, MO, United States)

Benbow, W.

(Harvard-Smithsonian Center for Astrophysics Amado, AZ, United States)

Berger, K.

(Delaware Univ. Newark, DE, United States)

Bird, R.

(University Coll. Dublin, Ireland)

Boettcher, M.

(North-West Univ. Potchefstroom, South Africa)

Bouvier, A.

(California Univ. Santa Cruz, CA, United States)

Buchovecky, M.

(California Univ. Los Angeles, CA, United States)

Buckley, J. H.

(Washington Univ. Saint Louis, MO, United States)

Bugaev, V.

(Washington Univ. Saint Louis, MO, United States)

Cardenzana, J. V.

(Iowa State Univ. Ames, IA, United States)

Cerruti, M.

(Harvard-Smithsonian Center for Astrophysics Amado, AZ, United States)

Cesarini, A.

(National Univ. of Ireland Galway, Ireland)

Chen, X.

(Potsdam Univ. Potsdam, Germany)

Ciupik, L.

(Adler Planetarium Chicago, IL, United States)

Collins-Hughes, E.

(University Coll. Dublin, Ireland)

Connolly, M. P.

(National Univ. of Ireland Galway, Ireland)

Cui, W.

(Purdue Univ. West Lafayette, IN, United States)

Dumm, J.

(Minnesota Univ. Minneapolis, MN, United States)

Eisch, J. D.

(Iowa State Univ. Ames, IA, United States)

Falcone, A.

(Pennsylvania State Univ. University Park, PA, United States)

Federici, S.

(Deutsches Elektronen-Synchrotron Zeuthen, Germany)

Feng, Q.

(Purdue Univ. West Lafayette, IN, United States)

Finley, J. P.

(Purdue Univ. West Lafayette, IN, United States)

Fleischhack, H.

(Deutsches Elektronen-Synchrotron Zeuthen, Germany)

Fortin, P.

(Harvard-Smithsonian Center for Astrophysics Amado, AZ, United States)

Fortson, L.

(Minnesota Univ. Minneapolis, MN, United States)

Furniss, A.

(California State University, East Bay Hayward, CA, United States)

Galante, N.

(Harvard-Smithsonian Center for Astrophysics Amado, AZ, United States)

Gall, D.

(Iowa Univ. Iowa City, IA, United States)

Gillanders, G. H.

(National Univ. of Ireland Galway, Ireland)

Griffin, S.

(McGill Univ. Montreal, Quebec, Canada)

Griffith, S. T.

(Iowa State Univ. Ames, IA, United States)

Grube, J.

(Adler Planetarium Chicago, IL, United States)

Gyuk, G.

(Adler Planetarium Chicago, IL, United States)

Huetten, M.

(Deutsches Elektronen-Synchrotron Zeuthen, Germany)

Hakansson, N.

(Potsdam Univ. Potsdam, Germany)

Holder, Y.

(Delaware Univ. Newark, DE, United States)

Hughes, G.

(Deutsches Elektronen-Synchrotron Zeuthen, Germany)

Humensky, T. B.

(Columbia Univ. New York, NY, United States)

Johnson, C. A.

(California Univ. Santa Cruz, CA, United States)

Kaaret, P.

(Iowa State Univ. Ames, IA, United States)

Kar, P.

(Utah Univ. Salt Lake City, UT, United States)

Kelley-Hoskins, N.

(Deutsches Elektronen-Synchrotron Zeuthen, Germany)

Kertzman, M.

(DePauw Univ. Greencastle, IN, United States)

Khassen, Y.

(University Coll. Dublin, Ireland)

Kieda, D.

(Utah Univ. Salt Lake City, UT, United States)

Krause, M.

(Deutsches Elektronen-Synchrotron Zeuthen, Germany)

Krawczynski, H.

(Washington Univ. Saint Louis, MO, United States)

Krennrich, F.

(Iowa State Univ. Ames, IA, United States)

Lang, M. J.

(National Univ. of Ireland Galway, Ireland)

Madhavan, A. S.

(Iowa State Univ. Ames, IA, United States)

Maier, G.

(Deutsches Elektronen-Synchrotron Zeuthen, Germany)

McArthur, S.

(Purdue Univ. West Lafayette, IN, United States)

McCann, A.

(McGill Univ. Montreal, Quebec, Canada)

Meagher, K.

(Georgia Inst. of Tech. Atlanta, GA, United States)

Millis, J.

(Anderson Univ. Anderson, IN, United States)

Moriarty, P.

(Galway-Mayo Inst. of Technology (GMIT) Galway, Ireland)

Mukherjee, R.

(Columbia Univ. New York, NY, United States)

Nieto, D.

(Columbia Univ. New York, NY, United States)

de Bhroithe, O'Faolain

(Deutsches Elektronen-Synchrotron Zeuthen, Germany)

Ong, R. A.

(California Univ. Los Angeles, CA, United States)

Orr, M.

(Iowa State Univ. Ames, IA, United States)

Otte, A. N.

(Georgia Inst. of Tech. Atlanta, GA, United States)

Pandel, D.

(Grand Valley State Univ. Allendale, MI, United States)

Park, N.

(Chicago Univ. Chicago, IL, United States)

Pelassa, V.

(Harvard-Smithsonian Center for Astrophysics Amado, AZ, United States)

Perkins, J. S.

(NASA Goddard Space Flight Center Greenbelt, MD, United States)

Pichel, A.

(Instituto de Astronomia y Fisica del Espacio Buenos Aires, Argentina)

Pohl, M.

(Potsdam Univ. Potsdam, Germany)

Popkow, A.

(California Univ. Los Angeles, CA, United States)

Quinn, J.

(University Coll. Dublin, Ireland)

Ragan, K.

(McGill Univ. Montreal, Quebec, Canada)

Reyes, L. C.

(California Polytechnic State Univ. San Luis Obispo, CA, United States)

Reynolds, P. T.

(Cork Inst. of Tech. Cork, Ireland)

Roache, E.

(Harvard-Smithsonian Center for Astrophysics Amado, AZ, United States)

Rousselle, J.

(California Univ. Los Angeles, CA, United States)

Rovero, A. C.

(Instituto de Astronomia y Fisica del Espacio Buenos Aires, Argentina)

Saxon, D. B.

(University Coll. Dublin, Ireland)

Sembroski, G. H.

(Purdue Univ. West Lafayette, IN, United States)

Shahinyan, K.

(Minnesota Univ. Minneapolis, MN, United States)

Sheidaei, F.

(Utah Univ. Salt Lake City, UT, United States)

Skole, C.

(Deutsches Elektronen-Synchrotron Zeuthen, Germany)

Smith, A. W.

(Argonne National Lab. IL, United States)

Staszak, D.

(Chicago Univ. Chicago, IL, United States)

Telezhinsky, I.

(Potsdam Univ. Potsdam, Germany)

Theiling, M.

(Purdue Univ. West Lafayette, IN, United States)

Todd, N. W.

(Washington Univ. Saint Louis, MO, United States)

Tucci, J. V.

(Purdue Univ. West Lafayette, IN, United States)

Tyler, J.

(McGill Univ. Montreal, Quebec, Canada)

Varlotta, A.

(Purdue Univ. West Lafayette, IN, United States)

Vassilev, V. V.

(California Univ. Los Angeles, CA, United States)

Vincent, S,

(Deutsches Elektronen-Synchrotron Zeuthen, Germany)

Wakely, S. P.

(Chicago Univ. Chicago, IL, United States)

Weiner, O. M.

(Columbia Univ. New York, NY, United States)

Weinstein, A.

(Iowa State Univ. Ames, IA, United States)

Williams, D. A.

(California Univ. Santa Cruz, CA, United States)

Zitzer, B.

(Maryland Univ. College Park, MD, United States)

Baring, M. G.

(Rice Univ. Houston, TX, United States)

Becerra Gonzalex, J.

(Maryland Univ. College Park, MD, United States)

Cillis, A. N.

(Instituto de Astronomia y Fisica del Espacio Buenos Aires, Argentina)

Horan, D.

(Ecole Polytechnique Palaiseau, France)

Paneque, D.

(Kavli Inst. for Particle Astrophysics and Cosmology Stanford, CA, United States)

Date Acquired

July 10, 2017

Publication Date

September 20, 2016

Publication Information

Publication: Astronomy & Astrophysics

Publisher: ESO

Volume: 594

ISSN: 0004-6361

e-ISSN: 1432-0746

Subject Category

Astrophysics

Report/Patent Number

GSFC-E-DAA-TN44061

Distribution Limits

Public

Other

Keywords

BL Lacertae objects: individual: Mrk 501 / gamma rays: galaxies

Available Downloads

There are no available downloads for this record.

Related Records

There are no records associated with this record.

visibility_off

No Preview Available