2018MNRAS.480..879M

Query : 2018MNRAS.480..879M

2018MNRAS.480..879M - Mon. Not. R. Astron. Soc., 480, 879-892 (2018/October-2)

The broad-band properties of the intermediate synchrotron peaked BL Lac S2 0109+22 from radio to VHE gamma-rays.

MAGIC COLLABORATION, ANSOLDI S., ANTONELLI L.A., ARCARO C., BAACK D., BABIC A., BANERJEE B., BANGALE P., BARRES DE ALMEIDA U., BARRIO J.A., BECERRA GONZALEZ J., BEDNAREK W., BERNARDINI E., BERSE R.C., BERTI A., BESENRIEDER J., BHATTACHARYYA W., BIGONGIARI C., BILAND A., BLANCH O., BONNOLI G., CAROSI R., CERIBELLA G., CHATTERJEE A., COLAK S.M., COLIN P., COLOMBO E., CONTRERAS J.L., CORTINA J., COVINO S., CUMANI P., D'ELIA V., DA VELA P., DAZZI F., DE ANGELIS A., DE LOTTO B., DELFINO M., DELGADO J., DI PIERRO F., DOMINGUEZ A., DOMINIS PRESTER D., DORNER D., DORO M., EINECKE S., ELSAESSER D., FALLAH RAMAZANI V., FATTORINI A., FERNANDEZ-BARRAL A., FERRARA G., FIDALGO D., FOFFANO L., FONSECA M.V., FONT L., FRUCK C., GALLOZZI S., GARCIA LOPEZ R.J., GARCZARCZYK M., GAUG M., GIAMMARIA P., GODINOVIC N., GUBERMAN D., HADASCH D., HAHN A., HASSAN T., HAYASHIDA M., HERRERA J., HOANG J., HRUPEC D., INOUE S., ISHIO K., IWAMURA Y., KONNO Y., KUBO H., KUSHIDA J., LAMASTRA A., LELAS D., LEONE F., LINDFORS E., LOMBARDI S., LONGO F., LOPEZ M., MAGGIO C., MAJUMDAR P., MAKARIEV M., MANEVA G., MANGANARO M., MANNHEIM K., MARASCHI L., MARIOTTI M., MARTINEZ M., MASUDA S., MAZIN D., MIELKE K., MINEV M., MIRANDA J.M., MIRZOYAN R., MORALEJO A., MORENO V., MORETTI E., NEUSTROEV V., NIEDZWIECKI A., NIEVAS ROSILLO M., NIGRO C., NILSSON K., NINCI D., NISHIJIMA K., NODA K., NOGUES L., PAIANO S., PALACIO J., PANEQUE D., PAOLETTI R., PAREDES J.M., PEDALETTI G., PENIL P., PERESANO M., PERSIC M., PFRANG K., PRADA MORONI P.G., PRANDINI E., PULJAK I., GARCIA J.R., RHODE W., RIBO M., RICO J., RIGHI C., RUGLIANCICH A., SAHA L., SAITO T., SATALECKA K., SCHWEIZER T., SITAREK J., SNIDARIC I., SOBCZYNSKA D., STAMERRA A., STRZYS M., SURIC T., TAVECCHIO F., TEMNIKOV P., TERZIC T., TESHIMA M., TORRES-ALBA N., TSUJIMOTO S., VANZO G., VAZQUEZ ACOSTA M., VOVK I., WARD J.E., WILL M., ZARIC D., CIPRINI S., DESIANTE R., BARCEWICZ S., HOVATTA T., JORMANAINEN J., TAKALO L., REINTHAL R., MANKUZHIYIL N., WIERDA F., LAHTEENMAKI A., TAMMI J., TORNIKOSKI M., VERA R.J.C., KIEHLMANN S., MAX-MOERBECK W. and READHEAD A.C.S.

Abstract (from CDS):

The Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescopes observed S2 0109+22 in 2015 July during its flaring activity in high-energy gamma-rays observed by Fermi-Large Area Telescope. We analyse the MAGIC data to characterize the very high energy (VHE) gamma-ray emission of S2 0109+22, which belongs to the subclass of intermediate synchrotron peak (ISP) BL Lacertae (BL Lac) objects. We study the multifrequency emission in order to investigate the source classification. Finally, we compare the source long-term behaviour to other VHE gamma-ray emitting (TeV) blazars. We performed a temporal and spectral analysis of the data centred around the MAGIC interval of observation (MJD 57225-57231). Long-term radio and optical data have also been investigated using the discrete correlation function. The redshift of the source is estimated through optical host-galaxy imaging and also using the amount of VHE gamma-ray absorption. The quasi-simultaneous multifrequency spectral energy distribution (SED) is modelled with the conventional one-zone synchrotron self-Compton (SSC) model. MAGIC observations resulted in the detection of the source at a significance level of 5.3σ. The VHE gamma-ray emission of S2 0109+22 is variable on a daily time scale. VHE gamma-ray luminosity of the source is lower than the average of TeV BL Lacs. The optical polarization and long-term optical/radio behaviour of the source are different from the general population of TeV blazars. All these findings agree with the classification of the source as an ISP BL Lac object. We estimate the source redshift as z = 0.36 ± 0.07. The SSC parameters describing the SED are rather typical for blazars.

Abstract Copyright: © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): galaxies: active - BL Lacertae objects: individual: S2 0109+22 - galaxies: jets - gamma-rays: galaxies

Simbad objects: 8

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Number of rows : 8
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 QSO B0109+224 BLL 01 12 05.8247044608 +22 44 38.785880796   16.00 15.66 15.47   ~ 373 2
2 PKS J0303-2407 BLL 03 03 26.5025589984 -24 07 11.426291220   16.55 16.18     ~ 249 1
3 8C 0716+714 BLL 07 21 53.4482942664 +71 20 36.363846516   15.5 15.50 14.27   ~ 1388 1
4 RX J1015.0+4926 BLL 10 15 04.1396533776 +49 26 00.706055496   16.56 16.15 14.58   ~ 400 3
5 RX J1217.8+3007 BLL 12 17 52.0819904040 +30 07 00.634936872   16.07 15.62 13.47   G7 516 1
6 7C 1219+2830 BLL 12 21 31.6904439888 +28 13 58.500308172   16.81 16.11 14.24   ~ 924 1
7 3C 286 Sy1 13 31 08.2883506368 +30 30 32.960091564   17.51 17.25     ~ 4558 2
8 PKS J2158-3013 BLL 21 58 52.0652249880 -30 13 32.118447792   13.36 13.09 12.62   ~ 1829 1

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