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Title: Magic discovery of very high energy emission from the FSRQ PKS 1222+21

Abstract

Very high energy (VHE) γ-ray emission from the flat spectrum radio quasar (FSRQ) PKS 1222+21 (4C 21.35, z = 0.432) was detected with the MAGIC Cherenkov telescopes during a short observation (~0.5 hr) performed on 2010 June 17. The MAGIC detection coincides with high-energy MeV/GeV γ-ray activity measured by the Large Area Telescope (LAT) on board the Fermi satellite. The VHE spectrum measured by MAGIC extends from about 70 GeV up to at least 400 GeV and can be well described by a power-law dN/dE ∝ E –Γ with a photon index Γ = 3.75 ± 0.27stat ± 0.2syst. The averaged integral flux above 100 GeV is (4.6 ± 0.5) × 10–10 cm–2 s–1 (~1 Crab Nebula flux). The VHE flux measured by MAGIC varies significantly within the 30 minute exposure implying a flux doubling time of about 10 minutes. The VHE and MeV/GeV spectra, corrected for the absorption by the extragalactic background light (EBL), can be described by a single power law with photon index 2.72 ± 0.34 between 3 GeV and 400 GeV, and is consistent with emission belonging to a single component in the jet. The absence of a spectral cutoff constrains the γ-ray emission region tomore » lie outside the broad-line region, which would otherwise absorb the VHE γ-rays. Together with the detected fast variability, this challenges present emission models from jets in FSRQs. Furthermore, the combined Fermi/LAT and MAGIC spectral data yield constraints on the density of the EBL in the UV-optical to near-infrared range that are compatible with recent models.« less

Authors:
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Publication Date:
Research Org.:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
Contributing Org.:
MAGIC Collaboration
OSTI Identifier:
1357264
Grant/Contract Number:  
AC02-76SF00515
Resource Type:
Accepted Manuscript
Journal Name:
The Astrophysical Journal. Letters
Additional Journal Information:
Journal Volume: 730; Journal Issue: 1; Journal ID: ISSN 2041-8205
Publisher:
Institute of Physics (IOP)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; cosmic background radiation; galaxies: active; galaxies: jets; gamma rays: galaxies; quasars: individual (PKS 1222+21)

Citation Formats

Aleksić, J., Antonelli, L. A., Antoranz, P., Backes, M., Barrio, J. A., Bastieri, D., Becerra González, J., Bednarek, W., Berdyugin, A., Berger, K., Bernardini, E., Biland, A., Blanch, O., Bock, R. K., Boller, A., Bonnoli, G., Borla Tridon, D., Braun, I., Bretz, T., Cañellas, A., Carmona, E., Carosi, A., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Cossio, L., Covino, S., Dazzi, F., De Angelis, A., De Cea del Pozo, E., De Lotto, B., Delgado Mendez, C., Diago Ortega, A., Doert, M., Domínguez, A., Dominis Prester, D., Dorner, D., Doro, M., Elsaesser, D., Ferenc, D., Fonseca, M. V., Font, L., Fruck, C., García López, R. J., Garczarczyk, M., Garrido, D., Giavitto, G., Godinović, N., Hadasch, D., Häfner, D., Herrero, A., Hildebrand, D., Höhne-Mönch, D., Hose, J., Hrupec, D., Huber, B., Jogler, T., Klepser, S., Krähenbühl, T., Krause, J., La Barbera, A., Lelas, D., Leonardo, E., Lindfors, E., Lombardi, S., López, M., Lorenz, E., Makariev, M., Maneva, G., Mankuzhiyil, N., Mannheim, K., Maraschi, L., Mariotti, M., Martínez, M., Mazin, D., Meucci, M., Miranda, J. M., Mirzoyan, R., Miyamoto, H., Moldón, J., Moralejo, A., Nieto, D., Nilsson, K., Orito, R., Oya, I., Paneque, D., Paoletti, R., Pardo, S., Paredes, J. M., Partini, S., Pasanen, M., Pauss, F., Perez-Torres, M. A., Persic, M., Peruzzo, L., Pilia, M., Pochon, J., Prada, F., Prada Moroni, P. G., Prandini, E., Puljak, I., Reichardt, I., Reinthal, R., Rhode, W., Ribó, M., Rico, J., Rügamer, S., Saggion, A., Saito, K., Saito, T. Y., Salvati, M., Satalecka, K., Scalzotto, V., Scapin, V., Schultz, C., Schweizer, T., Shayduk, M., Shore, S. N., Sillanpää, A., Sitarek, J., Sobczynska, D., Spanier, F., Spiro, S., Stamerra, A., Steinke, B., Storz, J., Strah, N., Surić, T., Takalo, L., Tavecchio, F., Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Thom, M., Tibolla, O., Torres, D. F., Treves, A., Vankov, H., Vogler, P., Wagner, R. M., Weitzel, Q., Zabalza, V., Zandanel, F., Zanin, R., Tanaka, Y. T., Wood, D. L., and Buson, S. Magic discovery of very high energy emission from the FSRQ PKS 1222+21. United States: N. p., 2011. Web. doi:10.1088/2041-8205/730/1/L8.
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Aleksić, J., Antonelli, L. A., Antoranz, P., Backes, M., Barrio, J. A., Bastieri, D., Becerra González, J., Bednarek, W., Berdyugin, A., Berger, K., Bernardini, E., Biland, A., Blanch, O., Bock, R. K., Boller, A., Bonnoli, G., Borla Tridon, D., Braun, I., Bretz, T., Cañellas, A., Carmona, E., Carosi, A., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Cossio, L., Covino, S., Dazzi, F., De Angelis, A., De Cea del Pozo, E., De Lotto, B., Delgado Mendez, C., Diago Ortega, A., Doert, M., Domínguez, A., Dominis Prester, D., Dorner, D., Doro, M., Elsaesser, D., Ferenc, D., Fonseca, M. V., Font, L., Fruck, C., García López, R. J., Garczarczyk, M., Garrido, D., Giavitto, G., Godinović, N., Hadasch, D., Häfner, D., Herrero, A., Hildebrand, D., Höhne-Mönch, D., Hose, J., Hrupec, D., Huber, B., Jogler, T., Klepser, S., Krähenbühl, T., Krause, J., La Barbera, A., Lelas, D., Leonardo, E., Lindfors, E., Lombardi, S., López, M., Lorenz, E., Makariev, M., Maneva, G., Mankuzhiyil, N., Mannheim, K., Maraschi, L., Mariotti, M., Martínez, M., Mazin, D., Meucci, M., Miranda, J. M., Mirzoyan, R., Miyamoto, H., Moldón, J., Moralejo, A., Nieto, D., Nilsson, K., Orito, R., Oya, I., Paneque, D., Paoletti, R., Pardo, S., Paredes, J. M., Partini, S., Pasanen, M., Pauss, F., Perez-Torres, M. A., Persic, M., Peruzzo, L., Pilia, M., Pochon, J., Prada, F., Prada Moroni, P. G., Prandini, E., Puljak, I., Reichardt, I., Reinthal, R., Rhode, W., Ribó, M., Rico, J., Rügamer, S., Saggion, A., Saito, K., Saito, T. Y., Salvati, M., Satalecka, K., Scalzotto, V., Scapin, V., Schultz, C., Schweizer, T., Shayduk, M., Shore, S. N., Sillanpää, A., Sitarek, J., Sobczynska, D., Spanier, F., Spiro, S., Stamerra, A., Steinke, B., Storz, J., Strah, N., Surić, T., Takalo, L., Tavecchio, F., Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Thom, M., Tibolla, O., Torres, D. F., Treves, A., Vankov, H., Vogler, P., Wagner, R. M., Weitzel, Q., Zabalza, V., Zandanel, F., Zanin, R., Tanaka, Y. T., Wood, D. L., & Buson, S. Magic discovery of very high energy emission from the FSRQ PKS 1222+21. United States. https://doi.org/10.1088/2041-8205/730/1/L8
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Aleksić, J., Antonelli, L. A., Antoranz, P., Backes, M., Barrio, J. A., Bastieri, D., Becerra González, J., Bednarek, W., Berdyugin, A., Berger, K., Bernardini, E., Biland, A., Blanch, O., Bock, R. K., Boller, A., Bonnoli, G., Borla Tridon, D., Braun, I., Bretz, T., Cañellas, A., Carmona, E., Carosi, A., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Cossio, L., Covino, S., Dazzi, F., De Angelis, A., De Cea del Pozo, E., De Lotto, B., Delgado Mendez, C., Diago Ortega, A., Doert, M., Domínguez, A., Dominis Prester, D., Dorner, D., Doro, M., Elsaesser, D., Ferenc, D., Fonseca, M. V., Font, L., Fruck, C., García López, R. J., Garczarczyk, M., Garrido, D., Giavitto, G., Godinović, N., Hadasch, D., Häfner, D., Herrero, A., Hildebrand, D., Höhne-Mönch, D., Hose, J., Hrupec, D., Huber, B., Jogler, T., Klepser, S., Krähenbühl, T., Krause, J., La Barbera, A., Lelas, D., Leonardo, E., Lindfors, E., Lombardi, S., López, M., Lorenz, E., Makariev, M., Maneva, G., Mankuzhiyil, N., Mannheim, K., Maraschi, L., Mariotti, M., Martínez, M., Mazin, D., Meucci, M., Miranda, J. M., Mirzoyan, R., Miyamoto, H., Moldón, J., Moralejo, A., Nieto, D., Nilsson, K., Orito, R., Oya, I., Paneque, D., Paoletti, R., Pardo, S., Paredes, J. M., Partini, S., Pasanen, M., Pauss, F., Perez-Torres, M. A., Persic, M., Peruzzo, L., Pilia, M., Pochon, J., Prada, F., Prada Moroni, P. G., Prandini, E., Puljak, I., Reichardt, I., Reinthal, R., Rhode, W., Ribó, M., Rico, J., Rügamer, S., Saggion, A., Saito, K., Saito, T. Y., Salvati, M., Satalecka, K., Scalzotto, V., Scapin, V., Schultz, C., Schweizer, T., Shayduk, M., Shore, S. N., Sillanpää, A., Sitarek, J., Sobczynska, D., Spanier, F., Spiro, S., Stamerra, A., Steinke, B., Storz, J., Strah, N., Surić, T., Takalo, L., Tavecchio, F., Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Thom, M., Tibolla, O., Torres, D. F., Treves, A., Vankov, H., Vogler, P., Wagner, R. M., Weitzel, Q., Zabalza, V., Zandanel, F., Zanin, R., Tanaka, Y. T., Wood, D. L., and Buson, S. Fri . "Magic discovery of very high energy emission from the FSRQ PKS 1222+21". United States. https://doi.org/10.1088/2041-8205/730/1/L8. https://www.osti.gov/servlets/purl/1357264.
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@article{osti_1357264,
title = {Magic discovery of very high energy emission from the FSRQ PKS 1222+21},
author = {Aleksić, J. and Antonelli, L. A. and Antoranz, P. and Backes, M. and Barrio, J. A. and Bastieri, D. and Becerra González, J. and Bednarek, W. and Berdyugin, A. and Berger, K. and Bernardini, E. and Biland, A. and Blanch, O. and Bock, R. K. and Boller, A. and Bonnoli, G. and Borla Tridon, D. and Braun, I. and Bretz, T. and Cañellas, A. and Carmona, E. and Carosi, A. and Colin, P. and Colombo, E. and Contreras, J. L. and Cortina, J. and Cossio, L. and Covino, S. and Dazzi, F. and De Angelis, A. and De Cea del Pozo, E. and De Lotto, B. and Delgado Mendez, C. and Diago Ortega, A. and Doert, M. and Domínguez, A. and Dominis Prester, D. and Dorner, D. and Doro, M. and Elsaesser, D. and Ferenc, D. and Fonseca, M. V. and Font, L. and Fruck, C. and García López, R. J. and Garczarczyk, M. and Garrido, D. and Giavitto, G. and Godinović, N. and Hadasch, D. and Häfner, D. and Herrero, A. and Hildebrand, D. and Höhne-Mönch, D. and Hose, J. and Hrupec, D. and Huber, B. and Jogler, T. and Klepser, S. and Krähenbühl, T. and Krause, J. and La Barbera, A. and Lelas, D. and Leonardo, E. and Lindfors, E. and Lombardi, S. and López, M. and Lorenz, E. and Makariev, M. and Maneva, G. and Mankuzhiyil, N. and Mannheim, K. and Maraschi, L. and Mariotti, M. and Martínez, M. and Mazin, D. and Meucci, M. and Miranda, J. M. and Mirzoyan, R. and Miyamoto, H. and Moldón, J. and Moralejo, A. and Nieto, D. and Nilsson, K. and Orito, R. and Oya, I. and Paneque, D. and Paoletti, R. and Pardo, S. and Paredes, J. M. and Partini, S. and Pasanen, M. and Pauss, F. and Perez-Torres, M. A. and Persic, M. and Peruzzo, L. and Pilia, M. and Pochon, J. and Prada, F. and Prada Moroni, P. G. and Prandini, E. and Puljak, I. and Reichardt, I. and Reinthal, R. and Rhode, W. and Ribó, M. and Rico, J. and Rügamer, S. and Saggion, A. and Saito, K. and Saito, T. Y. and Salvati, M. and Satalecka, K. and Scalzotto, V. and Scapin, V. and Schultz, C. and Schweizer, T. and Shayduk, M. and Shore, S. N. and Sillanpää, A. and Sitarek, J. and Sobczynska, D. and Spanier, F. and Spiro, S. and Stamerra, A. and Steinke, B. and Storz, J. and Strah, N. and Surić, T. and Takalo, L. and Tavecchio, F. and Temnikov, P. and Terzić, T. and Tescaro, D. and Teshima, M. and Thom, M. and Tibolla, O. and Torres, D. F. and Treves, A. and Vankov, H. and Vogler, P. and Wagner, R. M. and Weitzel, Q. and Zabalza, V. and Zandanel, F. and Zanin, R. and Tanaka, Y. T. and Wood, D. L. and Buson, S.},
abstractNote = {Very high energy (VHE) γ-ray emission from the flat spectrum radio quasar (FSRQ) PKS 1222+21 (4C 21.35, z = 0.432) was detected with the MAGIC Cherenkov telescopes during a short observation (~0.5 hr) performed on 2010 June 17. The MAGIC detection coincides with high-energy MeV/GeV γ-ray activity measured by the Large Area Telescope (LAT) on board the Fermi satellite. The VHE spectrum measured by MAGIC extends from about 70 GeV up to at least 400 GeV and can be well described by a power-law dN/dE ∝ E –Γ with a photon index Γ = 3.75 ± 0.27stat ± 0.2syst. The averaged integral flux above 100 GeV is (4.6 ± 0.5) × 10–10 cm–2 s–1 (~1 Crab Nebula flux). The VHE flux measured by MAGIC varies significantly within the 30 minute exposure implying a flux doubling time of about 10 minutes. The VHE and MeV/GeV spectra, corrected for the absorption by the extragalactic background light (EBL), can be described by a single power law with photon index 2.72 ± 0.34 between 3 GeV and 400 GeV, and is consistent with emission belonging to a single component in the jet. The absence of a spectral cutoff constrains the γ-ray emission region to lie outside the broad-line region, which would otherwise absorb the VHE γ-rays. Together with the detected fast variability, this challenges present emission models from jets in FSRQs. Furthermore, the combined Fermi/LAT and MAGIC spectral data yield constraints on the density of the EBL in the UV-optical to near-infrared range that are compatible with recent models.},
doi = {10.1088/2041-8205/730/1/L8},
journal = {The Astrophysical Journal. Letters},
number = 1,
volume = 730,
place = {United States},
year = {Fri Feb 25 00:00:00 EST 2011},
month = {Fri Feb 25 00:00:00 EST 2011}
}
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Works referenced in this record:

FERMI OBSERVATIONS OF TeV-SELECTED ACTIVE GALACTIC NUCLEI
journal, December 2009

FERMI LARGE AREA TELESCOPE CONSTRAINTS ON THE GAMMA-RAY OPACITY OF THE UNIVERSE
journal, October 2010

FERMI /LARGE AREA TELESCOPE BRIGHT GAMMA-RAY SOURCE LIST
journal, June 2009

  • Abdo, A. A.; Ackermann, M.; Ajello, M.
  • The Astrophysical Journal Supplement Series, Vol. 183, Issue 1
  • DOI: 10.1088/0067-0049/183/1/46

VHE γ -ray emission of PKS 2155–304: spectral and temporal variability
journal, September 2010

A low level of extragalactic background light as revealed by γ-rays from blazars
journal, April 2006

  • Aharonian, F.; Akhperjanian, A. G.; Bazer-Bachi, A. R.
  • Nature, Vol. 440, Issue 7087
  • DOI: 10.1038/nature04680

Unfolding of differential energy spectra in the MAGIC experiment
journal, December 2007

  • Albert, J.; Aliu, E.; Anderhub, H.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 583, Issue 2-3
  • DOI: 10.1016/j.nima.2007.09.048

Very-High-Energy Gamma Rays from a Distant Quasar: How Transparent Is the Universe?
journal, June 2008

Observations of the Blazar 3c 66a with the Magic Telescopes in Stereoscopic mode
journal, December 2010

Recollimation and Radiative Focusing of Relativistic Jets: Applications to Blazars and m87
journal, June 2009

Observations of the BL Lacertae Object 3C 66A with STACEE
journal, August 2005

  • Bramel, D. A.; Carson, J.; Covault, C. E.
  • The Astrophysical Journal, Vol. 629, Issue 1
  • DOI: 10.1086/431294

Extragalactic background light inferred from AEGIS galaxy-SED-type fractions: EBL from AEGIS galaxy-SED-type fractions
journal, October 2010

Gamma-ray-loud blazars and beaming
journal, April 1995

  • Dondi, Laura; Ghisellini, Gabriele
  • Monthly Notices of the Royal Astronomical Society, Vol. 273, Issue 3
  • DOI: 10.1093/mnras/273.3.583

Radiation fields of disk, BLR and torus in quasars and blazars: implications for γ-ray absorption
journal, January 2003

A Test of External Compton Models for Gamma‐Ray Active Galactic Nuclei
journal, July 2006

  • Fan, Zhonghui; Cao, Xinwu; Gu, Minfeng
  • The Astrophysical Journal, Vol. 646, Issue 1
  • DOI: 10.1086/504864

Constraints on the Extragalactic Background Light from very high Energy Gamma-Ray Observations of Blazars
journal, June 2009

Extragalactic optical-infrared background radiation, its time evolution and the cosmic photon-photon opacity
journal, June 2008

Radiation Spectral Synthesis of Relativistic Filamentation
journal, September 2010

  • Frederiksen, Jacob Trier; Haugbølle, Troels; Medvedev, Mikhail V.
  • The Astrophysical Journal, Vol. 722, Issue 1
  • DOI: 10.1088/2041-8205/722/1/L114

A METHOD FOR SETTING UPPER LIMITS TO THE EXTRAGALACTIC BACKGROUND LIGHT WITH FERMI -LAT AND TeV OBSERVATIONS OF BLAZARS
journal, April 2010

Rapid variability in TeV blazars: the case of PKS 2155−304
journal, May 2008

Canonical high-power blazars
journal, August 2009

Fast TeV variability in blazars: jets in a jet
journal, May 2009

  • Giannios, Dimitrios; Uzdensky, Dmitri A.; Begelman, Mitchell C.
  • Monthly Notices of the Royal Astronomical Society: Letters, Vol. 395, Issue 1
  • DOI: 10.1111/j.1745-3933.2009.00635.x

GeV gamma-ray attenuation and the high-redshift UV background
journal, November 2009

The Cosmic Infrared Background: Measurements and Implications
journal, September 2001

Upper Limits on TeV Gamma-Ray Emission from Active Galactic Nuclei
journal, October 1995

  • Kerrick, A. D.; Akerlof, C. W.; Biller, S.
  • The Astrophysical Journal, Vol. 452
  • DOI: 10.1086/176331

A lower-limit flux for the extragalactic background light
journal, June 2010

Parameter estimation in X-ray astronomy
journal, August 1976

  • Lampton, M.; Margon, B.; Bowyer, S.
  • The Astrophysical Journal, Vol. 208
  • DOI: 10.1086/154592

Analysis methods for results in gamma-ray astronomy
journal, September 1983

  • Li, T. -P.; Ma, Y. -Q.
  • The Astrophysical Journal, Vol. 272
  • DOI: 10.1086/161295

Mojave: Monitoring of jets in Active Galactic Nuclei with vlba Experiments. vi. Kinematics Analysis of a Complete Sample of Blazar jets
journal, November 2009

Absorption of 10–200 GeV Gamma Rays by Radiation from Broad‐Line Regions in Blazars
journal, December 2006

  • Liu, H. T.; Bai, J. M.
  • The Astrophysical Journal, Vol. 653, Issue 2
  • DOI: 10.1086/509097

Relativistic jets and the continuum emission in QSOs
journal, January 1980

  • Marscher, A. P.
  • The Astrophysical Journal, Vol. 235
  • DOI: 10.1086/157642

A structure and energy dissipation efficiency of relativistic reconfinement shocks
journal, January 2009

Optical spectra of narrow emission line Palomar-Green galaxies
journal, December 1987

  • Osterbrock, Donald E.; Pogge, Richard W.
  • The Astrophysical Journal, Vol. 323
  • DOI: 10.1086/165810

GeV BREAKS IN BLAZARS AS A RESULT OF GAMMA-RAY ABSORPTION WITHIN THE BROAD-LINE REGION
journal, June 2010

The Redshift Dependence of Gamma‐Ray Absorption in the Environments of Strong‐Line AGNs
journal, August 2007

  • Reimer, A.
  • The Astrophysical Journal, Vol. 665, Issue 2
  • DOI: 10.1086/519766

3C 454.3 Reveals the Structure and Physics of Its “Blazar Zone”
journal, March 2008

  • Sikora, Marek; Moderski, RafaŁ; Madejski, Greg M.
  • The Astrophysical Journal, Vol. 675, Issue 1
  • DOI: 10.1086/526419

Modification of the gamma-ray spectra by internal absorption in optically violently variable blazars: the example cases of 3C 273 and 3C 279
journal, December 2008

Dynamics and high-energy emission of the flaring HST-1 knot in the M 87 jet
journal, August 2006

Constraining the location of the emitting region in Fermi blazars through rapid γ-ray variability: Rapid γ-ray variability in blazars
journal, April 2010

  • Tavecchio, F.; Ghisellini, G.; Bonnoli, G.
  • Monthly Notices of the Royal Astronomical Society: Letters, Vol. 405, Issue 1
  • DOI: 10.1111/j.1745-3933.2010.00867.x

Intrinsic absorption in 3C 279 at GeV-TeV energies and consequences for estimates of the extragalactic background light
journal, January 2009

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    Works referencing / citing this record:

    Magnetoluminescence
    book, January 2017

    • Blandford, R.; Yuan, Y.; Hoshino, M.
    • Jets and Winds in Pulsar Wind Nebulae, Gamma-Ray Bursts and Blazars
    • DOI: 10.1007/978-94-024-1292-5_9

    Energetic and Broad Band Spectral Distribution of Emission from Astronomical Jets
    journal, July 2013

    Magnetoluminescence
    journal, June 2017

    Limits on the extragalactic background light in the Fermi era
    journal, June 2012

    Discovery of TeV γ -ray emission from PKS 0447-439 and derivation of an upper limit on its redshift
    journal, April 2013

    H.E.S.S. discovery of VHE γ -rays from the quasar PKS 1510−089
    journal, June 2013

    Discovery of very high energy γ -ray emission from the BL Lacertae object PKS 0301−243 with H.E.S.S.
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    Fermi /LAT detection of extraordinary variability in the gamma-ray emission of the blazar PKS 1510-089
    journal, July 2013

    Multiwavelength observations of a VHE gamma-ray flare from PKS 1510−089 in 2015
    journal, July 2017

    Luminous and high-frequency peaked blazars: the origin of the γ -ray emission from PKS 1424+240
    journal, October 2017

    The flat-spectrum radio quasar 3C 345 from the high to the low emission state
    journal, June 2018

    The mid-2016 flaring activity of the flat spectrum radio quasar PKS 2023-07
    journal, August 2018

    A fast, very-high-energy γ -ray flare from BL Lacertae during a period of multi-wavelength activity in June 2015
    journal, March 2019

    F-GAMMA: Multi-frequency radio monitoring of Fermi blazars : The 2.64 to 43 GHz Effelsberg light curves from 2007–2015⋆
    journal, June 2019

    Study of the variable broadband emission of Markarian 501 during the most extreme Swift X-ray activity
    journal, May 2020

    Origin of the multiwavelength emission of PKS 0502+049
    journal, February 2019

    Broadband X-ray observations of four gamma-ray narrow-line Seyfert 1 galaxies
    journal, December 2019

    Extragalactic Background Light from Hierarchical Galaxy Formation: Gamma-Ray Attenuation up to the Epoch of Cosmic Reionization and the First Stars
    journal, April 2013

    • Inoue, Yoshiyuki; Inoue, Susumu; Kobayashi, Masakazu A. R.
    • The Astrophysical Journal, Vol. 768, Issue 2
    • DOI: 10.1088/0004-637x/768/2/197

    Axion-like particle imprint in cosmological very-high-energy sources
    journal, November 2011

    • Domínguez, A.; Sánchez-Conde, M. A.; Prada, F.
    • Journal of Cosmology and Astroparticle Physics, Vol. 2011, Issue 11
    • DOI: 10.1088/1475-7516/2011/11/020

    Indications for a pair-production anomaly from the propagation of VHE gamma-rays
    journal, February 2012

    Hints of an axion-like particle mixing in the GeV gamma-ray blazar data?
    journal, November 2013

    VERY RAPID HIGH-AMPLITUDE GAMMA-RAY VARIABILITY IN LUMINOUS BLAZAR PKS 1510–089 STUDIED WITH FERMI -LAT
    journal, March 2013

    The most powerful flaring activity from the NLSy1 PMN J0948+0022
    journal, November 2014

    • D'Ammando, F.; Orienti, M.; Finke, J.
    • Monthly Notices of the Royal Astronomical Society, Vol. 446, Issue 3
    • DOI: 10.1093/mnras/stu2251

    Bethe–Heitler emission in BL Lacs: filling the gap between X-rays and γ-rays
    journal, December 2014

    • Petropoulou, M.; Mastichiadis, A.
    • Monthly Notices of the Royal Astronomical Society, Vol. 447, Issue 1
    • DOI: 10.1093/mnras/stu2364

    Particle diffusion and localized acceleration in inhomogeneous AGN jets – I. Steady-state spectra
    journal, December 2014

    • Chen, Xuhui; Pohl, Martin; Böttcher, Markus
    • Monthly Notices of the Royal Astronomical Society, Vol. 447, Issue 1
    • DOI: 10.1093/mnras/stu2438

    Magnetic field amplification and flat spectrum radio quasars
    journal, May 2014

    • Chen, X.; Chatterjee, R.; Zhang, H.
    • Monthly Notices of the Royal Astronomical Society, Vol. 441, Issue 3
    • DOI: 10.1093/mnras/stu713

    MHD simulations of three-dimensional resistive reconnection in a cylindrical plasma column
    journal, July 2016

    • Striani, E.; Mignone, A.; Vaidya, B.
    • Monthly Notices of the Royal Astronomical Society, Vol. 462, Issue 3
    • DOI: 10.1093/mnras/stw1848

    Prospects for gamma-ray observations of narrow-line Seyfert 1 galaxies with the Cherenkov Telescope Array
    journal, September 2018

    • Romano, P.; Vercellone, S.; Foschini, L.
    • Monthly Notices of the Royal Astronomical Society, Vol. 481, Issue 4
    • DOI: 10.1093/mnras/sty2484

    On the origin of gamma-rays in Fermi blazars: beyondthe broad-line region
    journal, May 2018

    • Costamante, L.; Cutini, S.; Tosti, G.
    • Monthly Notices of the Royal Astronomical Society, Vol. 477, Issue 4
    • DOI: 10.1093/mnras/sty887

    Jet kinematics of the quasar 4C+21.35 from observations with the KaVA very long baseline interferometry array
    journal, April 2019

    • Lee, Taeseok; Trippe, Sascha; Kino, Motoki
    • Monthly Notices of the Royal Astronomical Society, Vol. 486, Issue 2
    • DOI: 10.1093/mnras/stz970

    Towards discrimination between galactic and intergalactic axion-photon mixing
    journal, February 2016

    Semi-analytic modelling of the extragalactic background light and consequences for extragalactic gamma-ray spectra: Modelling of the EBL and gamma-ray spectra
    journal, April 2012

    • Gilmore, Rudy C.; Somerville, Rachel S.; Primack, Joel R.
    • Monthly Notices of the Royal Astronomical Society, Vol. 422, Issue 4
    • DOI: 10.1111/j.1365-2966.2012.20841.x

    Energetic constraints on a rapid gamma-ray flare in PKS 1222+216: Energetics of a VHE flare in PKS 1222+216
    journal, August 2012

    • Nalewajko, Krzysztof; Begelman, Mitchell C.; Cerutti, Benoît
    • Monthly Notices of the Royal Astronomical Society, Vol. 425, Issue 4
    • DOI: 10.1111/j.1365-2966.2012.21721.x

    Very-high energy gamma-ray astronomy: A 23-year success story in high-energy astroparticle physics
    journal, July 2012

    Physics potential of the International Axion Observatory (IAXO)
    text, January 2019

    Gamma-ray Emitting Narrow-Line Seyfert 1 Galaxies: Past, Present, and Future
    text, January 2019

    Fast γ-ray Variability: A Common Feature and Powerful Probe for Jetted AGNs
    journal, July 2018

    On the Connection of Radio and γ-Ray Emission in Blazars
    journal, December 2018

    • Boula, Stella; Petropoulou, Maria; Mastichiadis, Apostolos
    • Galaxies, Vol. 7, Issue 1
    • DOI: 10.3390/galaxies7010003

    The VHE γ-Ray View of the FSRQ PKS 1510-089
    journal, March 2019

    • Zacharias, Michael; Dominis Prester, Dijana; Jankowsky, Felix
    • Galaxies, Vol. 7, Issue 1
    • DOI: 10.3390/galaxies7010041

    Relativistic Jets in Gamma-Ray-Emitting Narrow-Line Seyfert 1 Galaxies
    journal, November 2019

    Kinematics of Parsec-scale Jets of Gamma-Ray Blazars at 43 GHz within the VLBA-BU-BLAZAR Program
    journal, September 2017

    • Jorstad, Svetlana G.; Marscher, Alan P.; Morozova, Daria A.
    • The Astrophysical Journal, Vol. 846, Issue 2
    • DOI: 10.3847/1538-4357/aa8407

    General Physical Properties of CGRaBS Blazars
    journal, December 2017

    • Paliya, Vaidehi S.; Marcotulli, L.; Ajello, M.
    • The Astrophysical Journal, Vol. 851, Issue 1
    • DOI: 10.3847/1538-4357/aa98e1

    Extremely Rapid X-Ray Flares of TeV Blazars in the RXTE Era
    journal, January 2018

    A Steady-state Spectral Model for Electron Acceleration and Cooling in Blazar Jets: Application to 3C 279
    journal, January 2018

    • Lewis, Tiffany R.; Finke, Justin D.; Becker, Peter A.
    • The Astrophysical Journal, Vol. 853, Issue 1
    • DOI: 10.3847/1538-4357/aaa19a

    Fast γ -Ray Variability in Blazars beyond Redshift 3
    journal, February 2018

    Leptonic and Hadronic Modeling of Fermi -LAT Hard Spectrum Quasars and Predictions for High-energy Polarization
    journal, August 2018

    • Paliya, Vaidehi S.; Zhang, Haocheng; Böttcher, Markus
    • The Astrophysical Journal, Vol. 863, Issue 1
    • DOI: 10.3847/1538-4357/aad1f0

    On the Multiwavelength Emission from CTA 102
    journal, August 2018

    • Gasparyan, S.; Sahakyan, N.; Baghmanyan, V.
    • The Astrophysical Journal, Vol. 863, Issue 2
    • DOI: 10.3847/1538-4357/aad234

    Stochastic Modeling of Multiwavelength Variability of the Classical BL Lac Object OJ 287 on Timescales Ranging from Decades to Hours
    journal, August 2018

    Missing Gamma-Ray Halos and the Need for New Physics in the Gamma-Ray Sky
    journal, November 2018

    • Broderick, Avery E.; Tiede, Paul; Chang, Philip
    • The Astrophysical Journal, Vol. 868, Issue 2
    • DOI: 10.3847/1538-4357/aae5f2

    Characterizing the Gamma-Ray Variability of the Brightest Flat Spectrum Radio Quasars Observed with the Fermi LAT
    journal, May 2019

    • Meyer, Manuel; Scargle, Jeffrey D.; Blandford, Roger D.
    • The Astrophysical Journal, Vol. 877, Issue 1
    • DOI: 10.3847/1538-4357/ab1651

    Ejection of Double Knots from the Radio Core of PKS 1510–089 during the Strong Gamma-Ray Flares in 2015
    journal, May 2019

    • Park, Jongho; Lee, Sang-Sung; Kim, Jae-Young
    • The Astrophysical Journal, Vol. 877, Issue 2
    • DOI: 10.3847/1538-4357/ab1b27

    Meeting the Challenge from Bright and Fast Gamma-Ray Flares of 3C 279
    journal, July 2017

    Short-timescale γ -Ray Variability in CTA 102
    journal, February 2018

    Energetic and Broad Band Spectral Distribution of Emission from Astronomical Jets
    book, January 2013

    Gamma-ray emitting narrow-line Seyfert 1 galaxies: Past, present, and future
    journal, October 2019

    Physics potential of the International Axion Observatory (IAXO)
    journal, June 2019

    Discovery of very high energy γ -ray emission from the BL Lacertae object PKS 0301−243 with H.E.S.S.
    text, January 2013

    • Abramowski, A.; Acero, F.; Aharonian, F.
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
    • DOI: 10.3204/desy-2014-00655

    The most powerful flaring activity from the NLSy1 PMN J0948+0022
    text, January 2015

    Magnetic Field Amplification and Flat Spectrum Radio Quasars
    text, January 2014

    • Chen, Xuhui; Chatterjee, Ritaban; Zhang, Haocheng
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
    • DOI: 10.3204/pubdb-2015-01142

    Particle diffusion and localized acceleration in inhomogeneous AGN jets - I. Steady-state spectra
    text, January 2015

    Limits on the extragalactic background light in the Fermi era
    conference, January 2012

    • Meyer, Manuel; Raue, Martin; Mazin, Daniel
    • HIGH ENERGY GAMMA-RAY ASTRONOMY: 5th International Meeting on High Energy Gamma-Ray Astronomy, AIP Conference Proceedings
    • DOI: 10.1063/1.4772332

    Discovery of TeV γ -ray emission from PKS 0447-439 and derivation of an upper limit on its redshift
    text, January 2013

    • Collaboration, H. E. S. S.; Abramowski, A.; Acero, F.
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
    • DOI: 10.3204/desy-2014-00637

    Minute-Timescale > 100 MeV $\gamma$-Ray Variability During the Giant Outburst of Quasar 3C 279 Observed by FERMI-LAT in 2015 June
    text, January 2016

    • Ackermann, Markus; Anantua, R.; Asano, K.
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
    • DOI: 10.3204/pubdb-2016-06149

    Multiwavelength observations of a VHE gamma-ray flare from PKS 1510-089 in 2015
    text, January 2016

    • Collaboration, Magic; Ahnen, M. L.; Ansoldi, S.
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
    • DOI: 10.3204/pubdb-2016-06249

    Luminous and high-frequency peaked blazars: the origin of the $\gamma$-ray emission from PKS 1424+240
    text, January 2017

    Physics potential of the International Axion Observatory (IAXO)
    text, January 2019

    Very High Energy Gamma‐Ray Astronomy
    journal, October 1999

    • Catanese, Michael; Weekes, Trevor C.
    • Publications of the Astronomical Society of the Pacific, Vol. 111, Issue 764
    • DOI: 10.1086/316435

    Multiwavelength observations of a VHE gamma-ray flare from PKS 1510−089 in 2015
    text, January 2017

    • Ahnen, M. L.; Ansoldi, S.; Antonelli, L. A.
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
    • DOI: 10.3204/pubdb-2018-00435

    H.E.S.S. discovery of VHE γ -rays from the quasar PKS 1510−089
    text, January 2013

    • Abramowski, A.; Acero, F.; Aharonian, F.
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
    • DOI: 10.3204/desy-2014-00645

    The VHE $\gamma$-Ray View of the FSRQ PKS 1510-089
    text, January 2019

    • Zacharias, Michael; Dominis Prester, Dijana; Jankowsky, Felix
    • Deutsches Elektronen-Synchrotron, DESY, Hamburg
    • DOI: 10.3204/pubdb-2019-01897

    Axion-like particle imprint in cosmological very-high-energy sources
    text, January 2011

    The 2010 very high energy gamma-ray flare & 10 years of multi-wavelength observations of M 87
    text, January 2011

    Limits on the extragalactic background light in the Fermi era
    text, January 2012

    The Firm Redshift Lower Limit of the Most Distant TeV-Detected Blazar PKS 1424+240
    text, January 2013

    Constraining the Location of Gamma-Ray Flares in Luminous Blazars
    text, January 2014

    MHD simulations of three-dimensional Resistive Reconnection in a cylindrical plasma column
    text, January 2016

    Multiwavelength observations of a VHE gamma-ray flare from PKS 1510-089 in 2015
    text, January 2016

    The flat-spectrum radio quasar 3C 345 from the high to the low emission state
    text, January 2017

    A Steady-State Spectral Model For Electron Acceleration And Cooling In Blazar Jets: Application To 3C 279
    text, January 2017

    General Physical Properties of CGRaBS Blazars
    text, January 2017

    Extremely rapid x-ray flares of tev blazars in the rxte era
    text, January 2017

    On the origin of gamma rays in Fermi blazars: beyond the broad line region
    text, January 2018

    On the multi-wavelength Emission from CTA 102
    text, January 2018

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