2009ApJ...707..727A

Query : 2009ApJ...707..727A

2009ApJ...707..727A - Astrophys. J., 707, 727-737 (2009/December-2)

Multiwavelength monitoring of the enigmatic narrow-line Seyfert 1 PMN J0948+0022 in 2009 March-July.

ABDO A.A., ACKERMANN M., AJELLO M., AXELSSON M., BALDINI L., BALLET J., BARBIELLINI G., BASTIERI D., BAUGHMAN B.M., BECHTOL K., BELLAZZINI R., BERENJI B., BLOOM E.D., BONAMENTE E., BORGLAND A.W., BREGEON J., BREZ A., BRIGIDA M., BRUEL P., 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., HUGHES R.E., JACKSON M.S., JOHANNESSON G., JOHNSON A.S., JOHNSON W.N., KADLER M., KAMAE T., KATAGIRI H., KATAOKA J., KAWAI N., KERR M., KNODLSEDER J., KOCIAN M.L., KUSS M., LANDE J., LATRONICO L., LONGO F., LOPARCO F., LOTT B., LOVELLETTE M.N., LUBRANO P., MADEJSKI 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., RAINO 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 C., SHAW M.S., 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. (The Fermi-LAT Collaboration), 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 Yu.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. and WAGNER S.

Abstract (from CDS):

Following the recent discovery of γ rays from the radio-loud narrow-line Seyfert 1 galaxy PMN J0948+0022 (z = 0.5846), we started a multiwavelength campaign from radio to γ rays, which was carried out between the end of 2009 March and the beginning of July. The source displayed activity at all the observed wavelengths: a general decreasing trend from optical to γ-ray frequencies was followed by an increase of radio emission after less than two months from the peak of the γ-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.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - gamma rays: observations - infrared: galaxies - quasars: individual: PMN J0948+0022 - radio continuum: galaxies - ultraviolet: galaxies - X-rays: galaxies

Simbad objects: 5

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Number of rows : 5
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
2 QSO J0948+0022 Bla 09 48 57.32005819 +00 22 25.5596984   18.85 18.61 18.17   ~ 350 2
3 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
4 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
5 DR 21 SFR 20 39 01.6 +42 19 38           O4.5 1121 0

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