2005A&A...429..427P


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.18CEST02:03:19

2005A&A...429..427P - Astronomy and Astrophysics, volume 429, 427-431 (2005/1-2)

INTEGRAL observations of the field of the BL Lacertae object S5 0716+714.

PIAN E., FOSCHINI L., BECKMANN V., SILLANPAEAE A., SOLDI S., TAGLIAFERRI G., TAKALO L., BARR P., GHISELLINI G., MALAGUTI G., MARASCHI L., PALUMBO G.G.C., TREVES A., COURVOISIER T.J.-L., DI COCCO G., GEHRELS N., GIOMMI P., HUDEC R., LINDFORS E., MARCOWITH A., NILSSON K., PASANEN M., PURSIMO T., RAITERI C.M., SAVOLAINEN T., SIKORA M., TORNIKOSKI M., TOSTI G., TUERLER M., VALTAOJA E., VILLATA M. and WALTER R.

Abstract (from CDS):

We have performed observations of the blazar S5 0716+714 with INTEGRAL on 2-6 April 2004. In the first months of 2004, the source had increased steadily in optical brightness and had undergone two outbursts. During the latter outburst, that occurred in March, it reached the extreme level of R=12.1mag, which triggered our INTEGRAL program. The target has been detected with IBIS/ISGRI up to 60keV, with a flux of ∼3x10–11erg/s/cm2 in the 30-60keV interval, a factor of ∼2 higher than observed by the BeppoSAX PDS in October 2000. In the field of S5 0716+714 we have also detected the Flat Spectrum Radio Quasar S5 0836+710 and the two Seyfert galaxies Mkn 3 and Mkn 6. Their IBIS/ISGRI spectra are rather flat, albeit consistent with those measured by BeppoSAX. In the spectrum of Mkn 3 we find some evidence of a break between ∼60 and ∼100keV, reminiscent of the high energy cut-offs observed in other Seyfert galaxies. This is the first report of INTEGRAL spectra of weak Active Galactic Nuclei.

Abstract Copyright:

Journal keyword(s): galaxies: active - gamma-rays: observations

Simbad objects: 7

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Number of rows : 7

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 Mrk 3 Sy2 06 15 36.458 +71 02 15.24 14.21 14.03 12.97     ~ 862 3
2 IC 450 Sy1 06 52 12.32333 +74 25 37.2376   15.16 14.19     ~ 516 1
3 8C 0716+714 BLL 07 21 53.4484901266 +71 20 36.362058601   15.5 14.17 14.27   ~ 1160 1
4 4C 71.07 QSO 08 41 24.36526906 +70 53 42.1730054     16.5 16.8   ~ 710 1
5 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5420 1
6 NGC 5548 Sy1 14 17 59.5401093128 +25 08 12.600227883   14.35 13.73     ~ 2451 0
7 QSO B1830-211 Bla 18 33 39.92 -21 03 39.9     18.70 21   ~ 569 1

    Equat.    Gal    SGal    Ecl

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2021.04.18-02:03:19

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