Discovery of variability in the very high energy γ-ray emission of 1ES 1218+304 with veritas
We present results from an intensive VERITAS monitoring campaign of the high-frequency peaked BL Lac object 1ES 1218+304 in 2008/2009. Although 1ES 1218+304 was detected previously by MAGIC and VERITAS at a persistent level of ∼ 6% of the Crab Nebula flux, the new VERITAS data reveal a prominent fla...
Guardado en:
Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
---|---|
Formato: | Capítulo de libro |
Lenguaje: | Inglés |
Publicado: |
The American Astronomical Society
2010
|
Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
Aporte de: | Registro referencial: Solicitar el recurso aquí |
LEADER | 11079caa a22018977a 4500 | ||
---|---|---|---|
001 | PAPER-27571 | ||
003 | AR-BaUEN | ||
005 | 20230711124141.0 | ||
008 | 190410s2010 xx ||||fo|||| 00| 0 eng|d | ||
024 | 7 | |2 scopus |a 2-s2.0-77949525253 | |
040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
100 | 1 | |a Acciari, V.A. |4 aut |e autor | |
245 | 1 | 0 | |a Discovery of variability in the very high energy γ-ray emission of 1ES 1218+304 with veritas |
260 | |b The American Astronomical Society |c 2010 | ||
270 | 1 | 0 | |m Acciari, V. A.; Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, United States |
506 | |2 openaire |e Política editorial |f info:eu-repo/semantics/openAccess | ||
504 | |a Abdo, A.A., (2009) ApJ, 707, p. 1310 | ||
504 | |a Abdo, A.A., (2009) ApJS, 183, p. 46 | ||
504 | |a Acciari, V.A., (2008) ApJ, 684, p. 73 | ||
504 | |a Acciari, V.A., (2008) ApJ, 693, p. 104 | ||
504 | |a Acciari, V., (2009) ApJ, 695, p. 1370 | ||
504 | |a Acciari, V., (2009) ApJ, 707, p. 612 | ||
504 | |a Aharonian, F., (2000) New Astron., 5, p. 377 | ||
504 | |a Aharonian, F., (2006) Nature, 440, p. 1018 | ||
504 | |a Aharonian, F., (2006) A&A, 457, p. 899 | ||
504 | |a Aharonian, F., (2007) A&A, 475, p. 9 | ||
504 | |a Aharonian, F., (2007) A&A, 473, p. 25 | ||
504 | |a Aharonian, F., (2008) MNRAS, 387, p. 1206 | ||
504 | |a Albert, J., (2006) ApJ, 642, p. 119 | ||
504 | |a Albert, J., (2007) ApJ, 666, p. 17 | ||
504 | |a Berge, D., Funk, S., Hinton, J., (2007) A&A, 466, p. 1219 | ||
504 | |a Bloom, S.D., Marscher, A.P., (1996) ApJ, 461, p. 657 | ||
504 | |a Böttcher, M., Dermer, C., Finke, J., (2008) ApJ, 679, p. 9 | ||
504 | |a Hillas, M., (1985) Proc. 19th ICRC (La Jolla), 3, p. 445 | ||
504 | |a Holder, J., (2006) Astropart. Phys., 25, p. 391 | ||
504 | |a Katarzyński, K., (2006) MNRAS, 368, p. 52 | ||
504 | |a Krennrich, F., Dwek, E., Imran, A., (2008) ApJ, 689, p. 23 | ||
504 | |a Levenson, L., Wright, E., (2008) ApJ, 683, p. 585 | ||
504 | |a Li, T., Ma, Y., (1983) ApJ, 272, p. 317 | ||
504 | |a Malkov, M., Drury, O'C., (2001) Rep. Prog. Phys., 64, p. 429 | ||
504 | |a Mannheim, K., Biermann, P.L., (1992) A&A, 253, p. 21 | ||
504 | |a Maraschi, L., Ghisellini, G., Celotti, A., (1992) ApJ, 397, p. 5 | ||
504 | |a Marscher, A., (2006) Relativistic Jets: The Common Physics of AGN, Microquasars, and Gamma-Ray Bursts, p. 1. , (AIP Conf. Proc. 856), ed. P. A. Hughes & J. N. Bregman (Melville, NY: AIP) | ||
504 | |a Ong, R.A., (2009) ATel, 2098, p. 1 | ||
504 | |a Perkins, J., (2009), arXiv:0907.4978; Rüger, M., Spanier, F., Mannheim, K., (2010) MNRAS, 401, p. 973 | ||
504 | |a Snchez-Conde, M., (2009) Phys. Rev. D, 79, p. 1235 | ||
504 | |a Sato, R., (2008) ApJ, 680, p. 9 | ||
504 | |a Stecker, F., (2007) ApJ, 667, p. 29 | ||
504 | |a Tavecchio, F., (2007) ApJ, 665, p. 980 | ||
504 | |a Teshima, M., (2008) ATel, 1500, p. 1 | ||
504 | |a Urry, C., Padovani, P., (1995) PASP, 107, p. 803 | ||
520 | 3 | |a We present results from an intensive VERITAS monitoring campaign of the high-frequency peaked BL Lac object 1ES 1218+304 in 2008/2009. Although 1ES 1218+304 was detected previously by MAGIC and VERITAS at a persistent level of ∼ 6% of the Crab Nebula flux, the new VERITAS data reveal a prominent flare reaching ∼ 20% of the Crab. While very high energy (VHE) flares are quite common in many nearby blazars, the case of 1ES 1218+304 (redshift z = 0.182) is particularly interesting since it belongs to a group of blazars that exhibit unusually hard VHE spectra considering their redshifts. When correcting the measured spectra for absorption by the extragalactic background light, 1ES 1218+304 and a number of other blazars are found to have differential photon indices Γ≤ 1.5. The difficulty in modeling these hard spectral energy distributions in blazar jets has led to a range of theoretical γ-ray emission scenarios, one of which is strongly constrained by these new VERITAS observations. We consider the implications of the observed light curve of 1ES 1218+304, which shows day scale flux variations, for shock acceleration scenarios in relativistic jets, and in particular for the viability of kiloparsec-scale jet emission scenarios. © 2010. The American Astronomical Society. All rights reserved. |l eng | |
593 | |a Fred Lawrence Whipple Observatory, Harvard-Smithsonian Center for Astrophysics, Amado, AZ 85645, United States | ||
593 | |a Department of Physics and Astronomy, Barnard College, Columbia University, NY 10027, United States | ||
593 | |a Department of Physics, Washington University, St. Louis, MO 63130, United States | ||
593 | |a Department of Physics and Astronomy, Bartol Research Institute, University of Delaware, Newark, DE 19716, United States | ||
593 | |a Astrophysical Institute, Department of Physics and Astronomy, Ohio University, Athens, OH 45701, United States | ||
593 | |a School of Physics and Astronomy, University of Leeds, LS2 9JT Leeds, United Kingdom | ||
593 | |a Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, United States | ||
593 | |a School of Physics, National University of Ireland Galway, University Road, Galway, Ireland | ||
593 | |a Astronomy Department, Adler Planetarium and Astronomy Museum, Chicago, IL 60605, United States | ||
593 | |a Physics Department, McGill University, Montreal, QC H3A 2T8, Canada | ||
593 | |a Department of Physics, Purdue University, West Lafayette, IN 47907, United States | ||
593 | |a Department of Physics, Grinnell College, Grinnell, IA 50112-1690, United States | ||
593 | |a Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, United States | ||
593 | |a Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112, United States | ||
593 | |a Santa Cruz Institute for Particle Physics, Department of Physics, University of California, Santa Cruz, CA 95064, United States | ||
593 | |a School of Physics, University College Dublin, Belfield, Dublin 4, Ireland | ||
593 | |a Enrico Fermi Institute, University of Chicago, Chicago, IL 60637, United States | ||
593 | |a Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, United States | ||
593 | |a Department of Physics and Astronomy, University of Iowa, Van Allen Hall, Iowa City, IA 52242, United States | ||
593 | |a Department of Physics and Astronomy, DePauw University, Greencastle, IN 46135-0037, United States | ||
593 | |a Department of Life and Physical Sciences, Galway-Mayo Institute of Technology, Dublin Road, Galway, Ireland | ||
593 | |a Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, United States | ||
593 | |a Instituto de Astronomia y Fisica Del Espacio, Casilla de Correo, 67-Sucursal 28, (C1428ZAA) Ciudad Autónoma de Buenos Aires, Argentina | ||
593 | |a Kavli Institute for Cosmological Physics, University of Chicago, Chicago, IL 60637, United States | ||
593 | |a Department of Applied Physics and Instrumentation, Cork Institute of Technology, Bishopstown, Cork, Ireland | ||
690 | 1 | 0 | |a GALAXIES: ACTIVE |
690 | 1 | 0 | |a GAMMA RAYS:GALAXIES |
700 | 1 | |a Aliu, E. |4 aut |e autor | |
700 | 1 | |a Beilicke, M. |4 aut |e autor | |
700 | 1 | |a Benbow, W. |4 aut |e autor | |
700 | 1 | |a Boltuch, D. |4 aut |e autor | |
700 | 1 | |a Böttcher, M. |4 aut |e autor | |
700 | 1 | |a Bradbury, S.M. |4 aut |e autor | |
700 | 1 | |a Bugaev, V. |4 aut |e autor | |
700 | 1 | |a Byrum, K. |4 aut |e autor | |
700 | 1 | |a Cesarini, A. |4 aut |e autor | |
700 | 1 | |a Ciupik, L. |4 aut |e autor | |
700 | 1 | |a Cogan, P. |4 aut |e autor | |
700 | 1 | |a Cui, W. |4 aut |e autor | |
700 | 1 | |a Dickherber, R. |4 aut |e autor | |
700 | 1 | |a Duke, C. |4 aut |e autor | |
700 | 1 | |a Falcone, A. |4 aut |e autor | |
700 | 1 | |a Finley, J.P. |4 aut |e autor | |
700 | 1 | |a Finnegan, G. |4 aut |e autor | |
700 | 1 | |a Fortson, L. |4 aut |e autor | |
700 | 1 | |a Furniss, A. |4 aut |e autor | |
700 | 1 | |a Galante, N. |4 aut |e autor | |
700 | 1 | |a Gall, D. |4 aut |e autor | |
700 | 1 | |a Gibbs, K. |4 aut |e autor | |
700 | 1 | |a Guenette, R. |4 aut |e autor | |
700 | 1 | |a Gillanders, G.H. |4 aut |e autor | |
700 | 1 | |a Godambe, S. |4 aut |e autor | |
700 | 1 | |a Grube, J. |4 aut |e autor | |
700 | 1 | |a Hanna, D. |4 aut |e autor | |
700 | 1 | |a Hui, C.M. |4 aut |e autor | |
700 | 1 | |a Humensky, T.B. |4 aut |e autor | |
700 | 1 | |a Imran, A. |4 aut |e autor | |
700 | 1 | |a Kaaret, P. |4 aut |e autor | |
700 | 1 | |a Karlsson, N. |4 aut |e autor | |
700 | 1 | |a Kertzman, M. |4 aut |e autor | |
700 | 1 | |a Kieda, D. |4 aut |e autor | |
700 | 1 | |a Krawczynski, H. |4 aut |e autor | |
700 | 1 | |a Krennrich, F. |4 aut |e autor | |
700 | 1 | |a Lang, M.J. |4 aut |e autor | |
700 | 1 | |a Lebohec, S. |4 aut |e autor | |
700 | 1 | |a Maier, G. |4 aut |e autor | |
700 | 1 | |a McArthur, S. |4 aut |e autor | |
700 | 1 | |a McCann, A. |4 aut |e autor | |
700 | 1 | |a Moriarty, P. |4 aut |e autor | |
700 | 1 | |a Nagai, T. |4 aut |e autor | |
700 | 1 | |a Ong, R.A. |4 aut |e autor | |
700 | 1 | |a Otte, A.N. |4 aut |e autor | |
700 | 1 | |a Pandel, D. |4 aut |e autor | |
700 | 1 | |a Perkins, J.S. |4 aut |e autor | |
700 | 1 | |a Pichel, A. |4 aut |e autor | |
700 | 1 | |a Pohl, M. |4 aut |e autor | |
700 | 1 | |a Quinn, J. |4 aut |e autor | |
700 | 1 | |a Ragan, K. |4 aut |e autor | |
700 | 1 | |a Reyes, L.C. |4 aut |e autor | |
700 | 1 | |a Reynolds, P.T. |4 aut |e autor | |
700 | 1 | |a Roache, E. |4 aut |e autor | |
700 | 1 | |a Rose, H.J. |4 aut |e autor | |
700 | 1 | |a Schroedter, M. |4 aut |e autor | |
700 | 1 | |a Sembroski, G.H. |4 aut |e autor | |
700 | 1 | |a Smith, A.W. |4 aut |e autor | |
700 | 1 | |a Steele, D. |4 aut |e autor | |
700 | 1 | |a Swordy, S.P. |4 aut |e autor | |
700 | 1 | |a Theiling, M. |4 aut |e autor | |
700 | 1 | |a Thibadeau, S. |4 aut |e autor | |
700 | 1 | |a Vassiliev, V.V. |4 aut |e autor | |
700 | 1 | |a Vincent, S. |4 aut |e autor | |
700 | 1 | |a Wakely, S.P. |4 aut |e autor | |
700 | 1 | |a Weekes, T.C. |4 aut |e autor | |
700 | 1 | |a Weinstein, A. |4 aut |e autor | |
700 | 1 | |a Weisgarber, T. |4 aut |e autor | |
700 | 1 | |a Williams, D.A. |4 aut |e autor | |
773 | 0 | |d Institute of Physics Publishing, 2010 |g v. 709 |h pp. L163-L167 |k n. 2 PART 2 |p Astrophys. J. Lett. |x 20418205 |t Astrophysical Journal Letters | |
856 | 4 | 1 | |u https://www.scopus.com/inward/record.uri?eid=2-s2.0-77949525253&doi=10.1088%2f2041-8205%2f709%2f2%2fL163&partnerID=40&md5=9d84da93400ac54d6c26bceae44fa8cb |x registro |y Registro en Scopus |
856 | 4 | 0 | |u https://doi.org/10.1088/2041-8205/709/2/L163 |x doi |y DOI |
856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_20418205_v709_n2PART2_pL163_Acciari |x handle |y Handle |
856 | 4 | 0 | |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_20418205_v709_n2PART2_pL163_Acciari |x registro |y Registro en la Biblioteca Digital |
901 | |a PAPER |n 10 |q Margarita Zelaya | ||
942 | |c ASER |n 0 | ||
961 | |a paper_20418205_v709_n2PART2_pL163_Acciari |b paper |c PU | ||
962 | |a info:eu-repo/semantics/article |a info:ar-repo/semantics/artículo |b info:eu-repo/semantics/publishedVersion | ||
963 | |a AAS | ||
976 | |a AEX | ||
997 | |a ARTICULO | ||
999 | |c 88524 |d 88524 |