2016A&A...596A..10M


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.10CEST10:50:08

2016A&A...596A..10M - Astronomy and Astrophysics, volume 596A, 10-10 (2016/12-1)

Looking for blazars in a sample of unidentified high-energy emitting Fermi sources.

MARCHESINI E.J., MASETTI N., CHAVUSHYAN V., CELLONE S.A., ANDRUCHOW I., BASSANI L., BAZZANO A., JIMENEZ-BAILON E., LANDI R., MALIZIA A., PALAZZI E., PATINO-ALVAREZ V., RODRIGUEZ-CASTILLO G.A., STEPHEN J.B. and UBERTINI P.

Abstract (from CDS):

Context. Based on their overwhelming dominance among associated Fermi γ-ray catalogue sources, it is expected that a large fraction of the unidentified Fermi objects are blazars. Through crossmatching between the positions of unidentified γ-ray sources from the First Fermi Catalog of γ-ray sources emitting above 10GeV (1FHL) and the ROSAT and Swift/XRT catalogues of X-ray objects and between pointed XRT observations, a sample of 36 potential associations was found in previous works with less than 15-arcsec of positional offset. One-third of them have recently been classified; the remainder, though believed to belong to the blazar class, still lack spectroscopic classifications.
Aims. We study the optical spectrum of the putative counterparts of these unidentified gamma-ray sources in order to find their redshifts and to determine their nature and main spectral characteristics.
Methods. An observational campaign was carried out on the putative counterparts of 13 1FHL sources using medium-resolution optical spectroscopy from the Osservatorio Astronomico di Bologna in Loiano, Italy; the Telescopio Nazionale Galileo and the Nordic Optical Telescope, both in the Canary Islands, Spain; and the Observatorio Astronomico Nacional San Pedro Martir in Baja California, Mexico.
Results. We were able to classify 14 new objects based on their continuum shapes and spectral features.
Conclusions. Twelve new blazars were found, along with one new quasar and one new narrow line Seyfert 1 (NLS1) to be potentially associated with the 1FHL sources of our sample. Redshifts or lower limits were obtained when possible alongside central black hole mass and luminosity estimates for the NLS1 and the quasar.

Abstract Copyright: © ESO, 2016

Journal keyword(s): gamma rays: general - X-rays: general - galaxies: active - BL Lacertae objects: general

Simbad objects: 26

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Number of rows : 26

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 PHL 2911 BLL 00 43 48.6674452900 -11 16 07.316579186   18.4   17.9   ~ 17 0
2 3FHL J0338.5+1302 BLL 03 38 27 +13 04.7           ~ 23 0
3 RX J0338.4+1302 BLL 03 38 29.2787403375 +13 02 15.443229220   19.3   18.3   ~ 6 0
4 3FHL J0439.8-1900 BLL 04 39 49.7320076443 -19 01 01.430390757   18.5   18.7   ~ 21 0
5 1FHL J0639.6-1244 gam 06 39 40 -12 44.8           ~ 3 0
6 2MASS J06400718-1253153 BLL 06 40 07.1822585021 -12 53 15.411159286           ~ 22 1
7 2FGL J0746.0-0222 BLL 07 46 27.0463444532 -02 25 49.330325272   18.6   18.4   ~ 18 0
8 3FHL J0804.9-0623 BLL 08 04 53 -06 26.1           ~ 10 0
9 1RXS J080458.3-062432 QSO 08 04 57.7392558555 -06 24 26.204484077   18.9   17.0   ~ 3 0
10 3FHL J1115.2-0705 BLL 11 15 11.60 -07 02 39.0           ~ 18 0
11 USNO-B1.0 0829-00287121 * 11 15 15.3424270095 -07 01 25.960076282   19.5   16.2   ~ 2 1
12 3FHL J1130.5-7801 BLL 11 30 31.91 -78 01 05.3           ~ 13 0
13 1FGL J1315.6-0729 BLL 13 15 52.9740651150 -07 33 02.072551599   18.8   17.8 17.78 ~ 23 0
14 2FGL J1328.5-4728 BLL 13 28 40.6232573192 -47 27 49.462392081           ~ 32 2
15 3FHL J1410.8+7406 Bz? 14 10 28 +74 08.3           ~ 22 0
16 1SXPS J141045.3+740508 Sy1 14 10 45.9526707583 +74 05 10.904406717   19.9   19.2   ~ 6 0
17 WISE J141052.02+740415.1 BLL 14 10 51.9947566271 +74 04 15.016070601   19.8   18.8   ~ 2 0
18 3FHL J1512.1-2254 BLL 15 11 57 -22 53.3           ~ 17 0
19 RXC J1512.2-2254 ClG 15 12 12.6 -22 54 59           ~ 12 0
20 2MASS J15121275-2255084 BLL 15 12 12.7550155453 -22 55 08.476856299   18.5   18.0   ~ 2 0
21 1SXPS J154952.1-065908 BLL 15 49 52.0443164256 -06 59 07.924457443   19.8   18.5   ~ 1 0
22 PSR J1549-06 BLL 15 49 53.3 -06 59 16           ~ 18 0
23 2MASX J18412170+2909404 BLL 18 41 21.7200029290 +29 09 41.030179397   17.6   16.7   ~ 19 1
24 3EG J1959+6342 BLL 20 02 38 +63 03.3           ~ 20 0
25 USNO-B1.0 1530-00317394 BLL 20 02 45.3480017708 +63 02 33.137851787   21.6   20.7   ~ 3 0
26 NAME WISEA J225815.00-364434.3 BLL 22 58 14.87 -36 44 33.5           ~ 23 0

    Equat.    Gal    SGal    Ecl

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2020.07.10-10:50:08

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