A. ABDO, A.; ACKERMANN, Markus; AJELLO, Marco; AXELSSON, Magnus; BALDINI, Luca; BALLET, Jean; BARBIELLINI, Guido; BASTIERI, D.; BAUGHMANN, B.M.; BECHTOL, K.; BELLAZZINI, R.; BERENJI, B.; BLOOM, E.D.; BONAMENTE, E.; BORGLAND, A.W.; BREGEON, J.; BREZ, A.; BRIGIDA, M.; BRUEL, Pascal; BURNETT, T.H.; CALIANDRO, G.A.; CAMERON, R.A.; CARAVEO, P. A.; CASANDJIAN, J.M.; CAVAZZUTI, E.; CECCHI, C.; CELIK, O.; CELOTTI, A.; CHEKHTMAN, A.; CHIANG, J.; CIPRINI, S.; CLAUS, R.; COHEN-TANUGI, J.; COLLMAR, W.; CONRAD, J.; COSTAMANTE, L.; CUTINI, S.; DE ANGELIS, A.; DE PALMA, F.; DO COUTO E SILVA, E.; DRELL, P.S.; DUMORA, D.; FARNIER, C.; FAVUZZI, C.; FEGAN, S.J.; FOCKE, W.B.; FORTIN, P.; FOSCHINI, L.; FRAILIS, M.; FUHRMANN, L.; FUKAZAWA, Y.; FUNK, S.; FUSCO, P.; GARGANO, F.; GEHRELS, N.; GERMANI, S.; GIGLIETTO, N.; GIORDANO, F.; GIROLETTI, M.; GLANZMAN, T.; GODFREY, G.; GRENIER, I.A.; GROVE, J.E.; GUILLEMOT, L.; GUIRIEC, S.; HANABATA, Y.; HAYS, E.; HUGUES, R.E.; JACKSON, M.S.; JÓHANNESSON, G.; JOHNSON, A.S.; JOHNSON, W.N.; KADLER, M.; KAMAE, T.; KATAGIRI, H.; KATAOKA, J.; KAWAI, N.; KERR, M.; KNÖDLSEDER, Jürgen; KOCIAN, M. L.; KUSS, M.; LANDE, J.; LATRONICO, L.; LONGO, F.; LOPARCO, F.; LOTT, B.; LOVELLETTE, M.N.; LUBRANO, P.; MADJESKI, G.M.; MAKEEV, A.; MAX-MOERBECK, W.; MAZZIOTTA, M.N.; MCCONVILLE, W.; MCENERY, J.E.; MCGLYNN, S.; MEURER, C.; MICHELSON, P.F.; MITTHUMSIRI, W.; MIZUNO, T.; MOISEEV, A.A.; MONTE, C.; MONZANI, M.E.; MORSELLI, A.; MOSKALENKO, I.V.; NESTORAS, I.; NOLAN, P.L.; NORRIS, J. P.; NUSS, E.; OHSUGI, T.; OMODEI, N.; ORLANDO, E.; ORMES, J.F.; PANEQUE, D.; PARENT, D.; PAVLIDOU, V.; PELASSA, V.; PEPE, M.; PESCE-ROLLINS, M.; PIRON, F.; PORTER, T.A.; RAINÒ, S.; RANDO, R.; RAZZANO, M.; READHEAD, A.; REIMER, O.; REPOSEUR, T.; RICHARDS, J.L.; RODRIGUEZ, A. Y.; ROTH, M.; RYDE, F.; SADROZINSKI, H. F.-W.; SANCHEZ, D.; SANDER, A.; SAZ PARKINSON, P.M.; SCARGLE, J.D.; SGRO, G.; SHAW, M.; SMITH, P. D.; SPANDRE, G.; SPINELLI, P.; STRICKMAN, M.S.; SUSON, D.J.; TAGLIAFERRI, G.; TAJIMA, H.; TAKAHASHI, H.; TANAKA, T.; THAYER, J.B.; THAYER, J.G.; THOMPSON, D. J.; TIBALDO, L.; TIBOLLA, O.; TORRES, D.F.; TOSTI, G.; TRAMACERE, A.; UCHIYAMA, Y.; USHER, T.L.; VASILEIOU, V.; VILCHEZ, N.; VITALE, V.; WAITE, A. P.; WANG, P.; WEHRLE, A.E.; WINER, B. L.; WOOD, K.S.; YLINEN, T.; ZENSUS, J.A.; ZIEGLER, M.; ANGELAKIS, E.; BAILYN, C.; BIGNALL, H.; BLANCHARD, J.; BONNING, E.W.; BUXTON, M.; CANTERNA, R.; CARRAMINANA, A.; CARRASCO, L.; COLOMER, F.; DOI, A.; GHISELLINI, G.; HAUSER, M.; HONG, X.; ISLER, J.; KINO, M.; KOVALEV, Y.Y.; KOVALEV, Y.A.; KRICHBAUM, T.P.; KUTYREV, A.; LAHTEENMAKI, A.; VAN LANGEVELDE, H.J.; LISTER, M.L.; MACOMB, D.; MARASCHI, L.; MARCHILI, N.; NAGAI, H.; PARAGI, Z.; PHILLIPS, C.; PUSHKAREV, A.B.; RECILLAS, E.; ROMING, P.; SEKIDO, M.; STARK, M.A.; SZOMORU, A.; TAMMI, J.; TAVECCHIO, F.; TORNIKOSKI, M.; TZIOUMIS, A.K.; URRY, C.M.; WAGNER, S.

doi:10.1088/0004-637X/707/1/727

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

Langue

Article de revue

Ce document a été publié dans

The Astrophysical Journal. 2009-12-10, vol. 707, p. 727-737

American Astronomical Society

Résumé en anglais

Following the recent discovery of gamma rays from the radio-loud narrow-line Seyfert 1 galaxy PMN J0948+0022 (z=0.5846), we started a multiwavelength campaign from radio to gamma rays, which was carried out between the end of March and the beginning of July 2009. The source displayed activity at all the observed wavelengths: a general decreasing trend from optical to gamma-ray frequencies was followed by an increase of radio emission after less than two months from the peak of the gamma-ray emission. The largest flux change, about a factor of about 4, occurred in the X-ray band. The smallest was at ultraviolet and near-infrared frequencies, where the rate of the detected photons dropped by a factor 1.6-1.9. At optical wavelengths, where the sampling rate was the highest, it was possible to observe day-scale variability, with flux variations up to a factor of about 3. The behavior of PMN J0948+0022 observed in this campaign and the calculated power carried out by its jet in the form of protons, electrons, radiation and magnetic field are quite similar to that of blazars, specifically of flat-spectrum radio quasars. These results confirm the idea that radio-loud narrow-line Seyfert 1 galaxies host relativistic jets with power similar to that of average blazars.< Réduire

Mots clés

galaxies: active

gamma rays: observations

infrared: galaxies

quasars: individual (PMN J0948+0022)

radio continuum: galaxies

ultraviolet: galaxies

X-rays: galaxies

Métadonnées

Licence d’utilisation du document

Multiwavelength monitoring of the enigmatic Narrow-Line Seyfert 1 PMN J0948+0022 in March-July 2009

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés

DOI

Origine

Unités de recherche

Publications correspondantes

Star Formation Efficiency at Intermediate Redshift ﻿

Monitoring the Bidirectional Relativistic Jets of the Radio Galaxy 1946+708 ﻿

Révision des listes de membres, des paramètres structurels et de la cinématique des amas stellaires de la Voie Lactée. ﻿

Star Formation Efficiency at Intermediate Redshift

Monitoring the Bidirectional Relativistic Jets of the Radio Galaxy 1946+708

Révision des listes de membres, des paramètres structurels et de la cinématique des amas stellaires de la Voie Lactée.