Discovery of very high energy gamma-ray emission from the blazar 1ES 1727+502 with the MAGIC Telescopes

Motivated by the Costamante & Ghisellini (2002) predictions we investigated if the blazar 1ES 1727+502 (z = 0.055) is emitting very high energy(VHE, E>100GeV) rays.We observed the BL Lac object 1ES 1727+502 in stereoscopic mode with the two MAGIC telescopes during 14 nightsbetween May 6t...

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Main Authors:	Aleksic, J., Antonelli, L., Antoranz, P., Asensio, M., Backes, M., Barres de Almeida, U., Barrio, J., Becerra, J., Bednarek, W., Berger, K., Bernardini, E., Biland, A., Blanch Bigas, O., Bock, R., Boller, A., Bonnefoy, S., Bonnoli, G., Borla Tridon, D., Borracci, F., Bretz, T., Carmona, E., Carosi, A., Carreto Fidalgo, D., Colin, P., Colombo, E., Contreras, J., Cortina, J., Cossio, L., Covino, S., Da Vela, P., Dazzi, F., de Angelis, A., De Caneva, G., De Lotto, B., Delgado, C., Doert, M., Dominguez, A., Dominis Prester, D., Dorner, D., Doro, M., Eisenacher, D., Elsaesser, D., Farina, E., Ferenc, D., Fonseca, M., Font, L., Fruck, C., Garcia López, R., Garczarczyk, M., Garrido Terrats, D., Gaug, M., Giavitto, G., Godinovic, N., González Muñoz, A., Gozzini, S., Hadamek, A., Hadasch, D., Häfner, D., Herrero, A., Hose, J., Hrupec, D., Idec, W., Jankowski, F., Kadenius, V., Klepser, S., Knoetig, M., Krähenbühl, T., Krause, J., Kushida, J., La Barbera, A., Lelas, D., Lewandowska, N., Lindfors, E., Lombardi, S., López, M., López-Coto, R., López-Oramas, A., Lorenz, E., Lozano, I., Makariev, M., Mallot, K., Maneva, G., Mankuzhiyil, N., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martínez, M., Masbou, J., Mazin, D., Meucci, M., Miranda, J., Mirzoyan, R., Moldon, J., Moralejo Olaizola, A., Munar-Adrover, P., Nakajima, D., Niedzwiecki, A., Nilsson, K., Nowak, N., Orito, R., Paiano, S., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J., Partini, S., Persic, M., Prada, F., Prada Moroni, P., Prandini, E., Puljak, I., Reichardt, I., Reinthal, R., Rhode, W., Ribo, M., Rico, J., Rugamer, S., Saggion, A., Saito, K., Saito, T., Salvati, M., Satalecka, K., Scalzotto, V., Scapin, V., Schultz, C., Schweizer, T., Shore, S., Sillanpää, A., Sitarek, J., Snidaric, I., Sobczynska, D., Spanier, F., Spiro, S., Stamatescu, V., Stamerra, A., Steinke, B., Storz, J., Sun, S., Suric, T., Takalo, L., Takami, H., Tavecchio, F., Temnikov, P., Terzic, T., Tescaro, D., Teshima, M., Tibolla, Omar, Torres, D., Toyama, T., Treves, A., Uellenbeck, M., Vogler, P., Wagner, R., Weitzel, Q., Zandanel, F., Zanin, R., Buson, S.
Format:	Journal Article
Published:	EDP Sciences 2014
Subjects:	BL Lac objects: individual(1ES 1727+502) – galaxies: active – gamma rays
Online Access:	http://hdl.handle.net/20.500.11937/33071

_version_	1848753843920175104
author	Aleksic, J. Antonelli, L. Antoranz, P. Asensio, M. Backes, M. Barres de Almeida, U. Barrio, J. Becerra, J. Bednarek, W. Berger, K. Bernardini, E. Biland, A. Blanch Bigas, O. Bock, R. Boller, A. Bonnefoy, S. Bonnoli, G. Borla Tridon, D. Borracci, F. Bretz, T. Carmona, E. Carosi, A. Carreto Fidalgo, D. Colin, P. Colombo, E. Contreras, J. Cortina, J. Cossio, L. Covino, S. Da Vela, P. Dazzi, F. de Angelis, A. De Caneva, G. De Lotto, B. Delgado, C. Doert, M. Dominguez, A. Dominis Prester, D. Dorner, D. Doro, M. Eisenacher, D. Elsaesser, D. Farina, E. Ferenc, D. Fonseca, M. Font, L. Fruck, C. Garcia López, R. Garczarczyk, M. Garrido Terrats, D. Gaug, M. Giavitto, G. Godinovic, N. González Muñoz, A. Gozzini, S. Hadamek, A. Hadasch, D. Häfner, D. Herrero, A. Hose, J. Hrupec, D. Idec, W. Jankowski, F. Kadenius, V. Klepser, S. Knoetig, M. Krähenbühl, T. Krause, J. Kushida, J. La Barbera, A. Lelas, D. Lewandowska, N. Lindfors, E. Lombardi, S. López, M. López-Coto, R. López-Oramas, A. Lorenz, E. Lozano, I. Makariev, M. Mallot, K. Maneva, G. Mankuzhiyil, N. Mannheim, K. Maraschi, L. Marcote, B. Mariotti, M. Martínez, M. Masbou, J. Mazin, D. Meucci, M. Miranda, J. Mirzoyan, R. Moldon, J. Moralejo Olaizola, A. Munar-Adrover, P. Nakajima, D. Niedzwiecki, A. Nilsson, K. Nowak, N. Orito, R. Paiano, S. Palatiello, M. Paneque, D. Paoletti, R. Paredes, J. Partini, S. Persic, M. Prada, F. Prada Moroni, P. Prandini, E. Puljak, I. Reichardt, I. Reinthal, R. Rhode, W. Ribo, M. Rico, J. Rugamer, S. Saggion, A. Saito, K. Saito, T. Salvati, M. Satalecka, K. Scalzotto, V. Scapin, V. Schultz, C. Schweizer, T. Shore, S. Sillanpää, A. Sitarek, J. Snidaric, I. Sobczynska, D. Spanier, F. Spiro, S. Stamatescu, V. Stamerra, A. Steinke, B. Storz, J. Sun, S. Suric, T. Takalo, L. Takami, H. Tavecchio, F. Temnikov, P. Terzic, T. Tescaro, D. Teshima, M. Tibolla, Omar Torres, D. Toyama, T. Treves, A. Uellenbeck, M. Vogler, P. Wagner, R. Weitzel, Q. Zandanel, F. Zanin, R. Buson, S.
author_facet	Aleksic, J. Antonelli, L. Antoranz, P. Asensio, M. Backes, M. Barres de Almeida, U. Barrio, J. Becerra, J. Bednarek, W. Berger, K. Bernardini, E. Biland, A. Blanch Bigas, O. Bock, R. Boller, A. Bonnefoy, S. Bonnoli, G. Borla Tridon, D. Borracci, F. Bretz, T. Carmona, E. Carosi, A. Carreto Fidalgo, D. Colin, P. Colombo, E. Contreras, J. Cortina, J. Cossio, L. Covino, S. Da Vela, P. Dazzi, F. de Angelis, A. De Caneva, G. De Lotto, B. Delgado, C. Doert, M. Dominguez, A. Dominis Prester, D. Dorner, D. Doro, M. Eisenacher, D. Elsaesser, D. Farina, E. Ferenc, D. Fonseca, M. Font, L. Fruck, C. Garcia López, R. Garczarczyk, M. Garrido Terrats, D. Gaug, M. Giavitto, G. Godinovic, N. González Muñoz, A. Gozzini, S. Hadamek, A. Hadasch, D. Häfner, D. Herrero, A. Hose, J. Hrupec, D. Idec, W. Jankowski, F. Kadenius, V. Klepser, S. Knoetig, M. Krähenbühl, T. Krause, J. Kushida, J. La Barbera, A. Lelas, D. Lewandowska, N. Lindfors, E. Lombardi, S. López, M. López-Coto, R. López-Oramas, A. Lorenz, E. Lozano, I. Makariev, M. Mallot, K. Maneva, G. Mankuzhiyil, N. Mannheim, K. Maraschi, L. Marcote, B. Mariotti, M. Martínez, M. Masbou, J. Mazin, D. Meucci, M. Miranda, J. Mirzoyan, R. Moldon, J. Moralejo Olaizola, A. Munar-Adrover, P. Nakajima, D. Niedzwiecki, A. Nilsson, K. Nowak, N. Orito, R. Paiano, S. Palatiello, M. Paneque, D. Paoletti, R. Paredes, J. Partini, S. Persic, M. Prada, F. Prada Moroni, P. Prandini, E. Puljak, I. Reichardt, I. Reinthal, R. Rhode, W. Ribo, M. Rico, J. Rugamer, S. Saggion, A. Saito, K. Saito, T. Salvati, M. Satalecka, K. Scalzotto, V. Scapin, V. Schultz, C. Schweizer, T. Shore, S. Sillanpää, A. Sitarek, J. Snidaric, I. Sobczynska, D. Spanier, F. Spiro, S. Stamatescu, V. Stamerra, A. Steinke, B. Storz, J. Sun, S. Suric, T. Takalo, L. Takami, H. Tavecchio, F. Temnikov, P. Terzic, T. Tescaro, D. Teshima, M. Tibolla, Omar Torres, D. Toyama, T. Treves, A. Uellenbeck, M. Vogler, P. Wagner, R. Weitzel, Q. Zandanel, F. Zanin, R. Buson, S.
author_sort	Aleksic, J.
building	Curtin Institutional Repository
collection	Online Access
description	Motivated by the Costamante & Ghisellini (2002) predictions we investigated if the blazar 1ES 1727+502 (z = 0.055) is emitting very high energy(VHE, E>100GeV) rays.We observed the BL Lac object 1ES 1727+502 in stereoscopic mode with the two MAGIC telescopes during 14 nightsbetween May 6th and June 10th 2011, for a total effective observing time of 12.6 hours. For the study of the multiwavelength spectral energydistribution (SED) we use simultaneous optical R-band data from the KVA telescope, archival UV/optical and X-ray observations by instrumentsUVOT and XRT on board of the Swift satellite and high energy (HE, 0.1GeV - 100GeV) –ray data from the Fermi-LAT instrument. We detect,for the first time, VHE –ray emission from 1ES 1727+502 at a statistical significance of 5.5. The integral flux above 150 GeV is estimated tobe (2.1 ± 0.4)% of the Crab Nebula flux and the de-absorbed VHE spectrum has a photon index of (2.7 ± 0.5). No significant short-term variabilitywas found in any of the wavebands presented here. We model the SED using a one-zone synchrotron self-Compton model obtaining parameterstypical for this class of sources.
first_indexed	2025-11-14T08:30:58Z
format	Journal Article
id	curtin-20.500.11937-33071
institution	Curtin University Malaysia
institution_category	Local University
last_indexed	2025-11-14T08:30:58Z
publishDate	2014
publisher	EDP Sciences
recordtype	eprints
repository_type	Digital Repository
spelling	curtin-20.500.11937-330712017-09-13T15:29:35Z Discovery of very high energy gamma-ray emission from the blazar 1ES 1727+502 with the MAGIC Telescopes Aleksic, J. Antonelli, L. Antoranz, P. Asensio, M. Backes, M. Barres de Almeida, U. Barrio, J. Becerra, J. Bednarek, W. Berger, K. Bernardini, E. Biland, A. Blanch Bigas, O. Bock, R. Boller, A. Bonnefoy, S. Bonnoli, G. Borla Tridon, D. Borracci, F. Bretz, T. Carmona, E. Carosi, A. Carreto Fidalgo, D. Colin, P. Colombo, E. Contreras, J. Cortina, J. Cossio, L. Covino, S. Da Vela, P. Dazzi, F. de Angelis, A. De Caneva, G. De Lotto, B. Delgado, C. Doert, M. Dominguez, A. Dominis Prester, D. Dorner, D. Doro, M. Eisenacher, D. Elsaesser, D. Farina, E. Ferenc, D. Fonseca, M. Font, L. Fruck, C. Garcia López, R. Garczarczyk, M. Garrido Terrats, D. Gaug, M. Giavitto, G. Godinovic, N. González Muñoz, A. Gozzini, S. Hadamek, A. Hadasch, D. Häfner, D. Herrero, A. Hose, J. Hrupec, D. Idec, W. Jankowski, F. Kadenius, V. Klepser, S. Knoetig, M. Krähenbühl, T. Krause, J. Kushida, J. La Barbera, A. Lelas, D. Lewandowska, N. Lindfors, E. Lombardi, S. López, M. López-Coto, R. López-Oramas, A. Lorenz, E. Lozano, I. Makariev, M. Mallot, K. Maneva, G. Mankuzhiyil, N. Mannheim, K. Maraschi, L. Marcote, B. Mariotti, M. Martínez, M. Masbou, J. Mazin, D. Meucci, M. Miranda, J. Mirzoyan, R. Moldon, J. Moralejo Olaizola, A. Munar-Adrover, P. Nakajima, D. Niedzwiecki, A. Nilsson, K. Nowak, N. Orito, R. Paiano, S. Palatiello, M. Paneque, D. Paoletti, R. Paredes, J. Partini, S. Persic, M. Prada, F. Prada Moroni, P. Prandini, E. Puljak, I. Reichardt, I. Reinthal, R. Rhode, W. Ribo, M. Rico, J. Rugamer, S. Saggion, A. Saito, K. Saito, T. Salvati, M. Satalecka, K. Scalzotto, V. Scapin, V. Schultz, C. Schweizer, T. Shore, S. Sillanpää, A. Sitarek, J. Snidaric, I. Sobczynska, D. Spanier, F. Spiro, S. Stamatescu, V. Stamerra, A. Steinke, B. Storz, J. Sun, S. Suric, T. Takalo, L. Takami, H. Tavecchio, F. Temnikov, P. Terzic, T. Tescaro, D. Teshima, M. Tibolla, Omar Torres, D. Toyama, T. Treves, A. Uellenbeck, M. Vogler, P. Wagner, R. Weitzel, Q. Zandanel, F. Zanin, R. Buson, S. BL Lac objects: individual(1ES 1727+502) – galaxies: active – gamma rays Motivated by the Costamante & Ghisellini (2002) predictions we investigated if the blazar 1ES 1727+502 (z = 0.055) is emitting very high energy(VHE, E>100GeV) rays.We observed the BL Lac object 1ES 1727+502 in stereoscopic mode with the two MAGIC telescopes during 14 nightsbetween May 6th and June 10th 2011, for a total effective observing time of 12.6 hours. For the study of the multiwavelength spectral energydistribution (SED) we use simultaneous optical R-band data from the KVA telescope, archival UV/optical and X-ray observations by instrumentsUVOT and XRT on board of the Swift satellite and high energy (HE, 0.1GeV - 100GeV) –ray data from the Fermi-LAT instrument. We detect,for the first time, VHE –ray emission from 1ES 1727+502 at a statistical significance of 5.5. The integral flux above 150 GeV is estimated tobe (2.1 ± 0.4)% of the Crab Nebula flux and the de-absorbed VHE spectrum has a photon index of (2.7 ± 0.5). No significant short-term variabilitywas found in any of the wavebands presented here. We model the SED using a one-zone synchrotron self-Compton model obtaining parameterstypical for this class of sources. 2014 Journal Article http://hdl.handle.net/20.500.11937/33071 10.1051/0004-6361/201321360 EDP Sciences unknown
spellingShingle	BL Lac objects: individual(1ES 1727+502) – galaxies: active – gamma rays Aleksic, J. Antonelli, L. Antoranz, P. Asensio, M. Backes, M. Barres de Almeida, U. Barrio, J. Becerra, J. Bednarek, W. Berger, K. Bernardini, E. Biland, A. Blanch Bigas, O. Bock, R. Boller, A. Bonnefoy, S. Bonnoli, G. Borla Tridon, D. Borracci, F. Bretz, T. Carmona, E. Carosi, A. Carreto Fidalgo, D. Colin, P. Colombo, E. Contreras, J. Cortina, J. Cossio, L. Covino, S. Da Vela, P. Dazzi, F. de Angelis, A. De Caneva, G. De Lotto, B. Delgado, C. Doert, M. Dominguez, A. Dominis Prester, D. Dorner, D. Doro, M. Eisenacher, D. Elsaesser, D. Farina, E. Ferenc, D. Fonseca, M. Font, L. Fruck, C. Garcia López, R. Garczarczyk, M. Garrido Terrats, D. Gaug, M. Giavitto, G. Godinovic, N. González Muñoz, A. Gozzini, S. Hadamek, A. Hadasch, D. Häfner, D. Herrero, A. Hose, J. Hrupec, D. Idec, W. Jankowski, F. Kadenius, V. Klepser, S. Knoetig, M. Krähenbühl, T. Krause, J. Kushida, J. La Barbera, A. Lelas, D. Lewandowska, N. Lindfors, E. Lombardi, S. López, M. López-Coto, R. López-Oramas, A. Lorenz, E. Lozano, I. Makariev, M. Mallot, K. Maneva, G. Mankuzhiyil, N. Mannheim, K. Maraschi, L. Marcote, B. Mariotti, M. Martínez, M. Masbou, J. Mazin, D. Meucci, M. Miranda, J. Mirzoyan, R. Moldon, J. Moralejo Olaizola, A. Munar-Adrover, P. Nakajima, D. Niedzwiecki, A. Nilsson, K. Nowak, N. Orito, R. Paiano, S. Palatiello, M. Paneque, D. Paoletti, R. Paredes, J. Partini, S. Persic, M. Prada, F. Prada Moroni, P. Prandini, E. Puljak, I. Reichardt, I. Reinthal, R. Rhode, W. Ribo, M. Rico, J. Rugamer, S. Saggion, A. Saito, K. Saito, T. Salvati, M. Satalecka, K. Scalzotto, V. Scapin, V. Schultz, C. Schweizer, T. Shore, S. Sillanpää, A. Sitarek, J. Snidaric, I. Sobczynska, D. Spanier, F. Spiro, S. Stamatescu, V. Stamerra, A. Steinke, B. Storz, J. Sun, S. Suric, T. Takalo, L. Takami, H. Tavecchio, F. Temnikov, P. Terzic, T. Tescaro, D. Teshima, M. Tibolla, Omar Torres, D. Toyama, T. Treves, A. Uellenbeck, M. Vogler, P. Wagner, R. Weitzel, Q. Zandanel, F. Zanin, R. Buson, S. Discovery of very high energy gamma-ray emission from the blazar 1ES 1727+502 with the MAGIC Telescopes
title	Discovery of very high energy gamma-ray emission from the blazar 1ES 1727+502 with the MAGIC Telescopes
title_full	Discovery of very high energy gamma-ray emission from the blazar 1ES 1727+502 with the MAGIC Telescopes
title_fullStr	Discovery of very high energy gamma-ray emission from the blazar 1ES 1727+502 with the MAGIC Telescopes
title_full_unstemmed	Discovery of very high energy gamma-ray emission from the blazar 1ES 1727+502 with the MAGIC Telescopes
title_short	Discovery of very high energy gamma-ray emission from the blazar 1ES 1727+502 with the MAGIC Telescopes
title_sort	discovery of very high energy gamma-ray emission from the blazar 1es 1727+502 with the magic telescopes
topic	BL Lac objects: individual(1ES 1727+502) – galaxies: active – gamma rays
url	http://hdl.handle.net/20.500.11937/33071

Discovery of very high energy gamma-ray emission from the blazar 1ES 1727+502 with the MAGIC Telescopes

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