2013A&A...559A..58M


Query : 2013A&A...559A..58M

2013A&A...559A..58M - Astronomy and Astrophysics, volume 559A, 58-58 (2013/11-1)

BL Lacertae identifications in a ROSAT-selected sample of Fermi unidentified objects.

MASETTI N., SBARUFATTI B., PARISI P., JIMENEZ-BAILON E., CHAVUSHYAN V., VOGT F.P.A., SGUERA V., STEPHEN J.B., PALAZZI E., BASSANI L., BAZZANO A., FIOCCHI M., GALAZ G., LANDI R., MALIZIA A., MINNITI D., MORELLI L. and UBERTINI P.

Abstract (from CDS):

The optical spectroscopic followup of 27 sources belonging to a sample of 30 high-energy objects selected by positionally cross correlating the first Fermi/LAT Catalog and the ROSAT All-Sky Survey Bright Source Catalog is presented here. It has been found or confirmed that 25 of them are BL Lacertae objects (BL Lacs), while the remaining two are Galactic cataclysmic variables (CVs). This strongly suggests that the sources in the first group are responsible for the GeV emission detected with Fermi, while the two CVs most likely represent spurious associations. We thus find an 80% a posteriori probability that the sources selected by matching GeV and X-ray catalogs belong to the BL Lac class. We also show suggestions that the BL Lacs selected with this approach are probably high-synchrotron-peaked sources and in turn good candidates for the detection of ultra-high-energy (TeV) photons from them.

Abstract Copyright:

Journal keyword(s): gamma rays: galaxies - BL Lacertae objects: general - novae, cataclysmic variables - techniques: spectroscopic

Simbad objects: 34

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Number of rows : 34
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 2FGL J0051.4-6241 BLL 00 51 16.68 -62 42 04.3 17.50 17.42 17.38     ~ 45 0
2 3HSP J005446.7-245529 BLL 00 54 46.76 -24 55 29.0 17.06 16.85 16.78     ~ 41 0
3 2MASS J01310723+6120334 BLL 01 31 07.24 +61 20 33.5           ~ 42 1
4 2MASS J01375047+5814112 BLL 01 37 50.4761854680 +58 14 11.321731860           ~ 45 2
5 6dFGS gJ022314.3-111738 BLL 02 23 14.2526085528 -11 17 38.474757384   19.02   18.46   ~ 34 0
6 4FGL J0506.9-5435 BLL 05 06 57.81686 -54 35 03.8219 17.60 17.25 17.14     ~ 52 0
7 WISEA J060408.61-481725.1 BLL 06 04 09.40 -48 17 26.1 17.96 17.91 17.79     ~ 40 0
8 87GB 064555.8+152016 BLL 06 48 47.6488006968 +15 16 24.797585352       16.2   ~ 73 0
9 1FGL J0838.6-2828 Psr 08 38 30.15 -28 25 55.5           ~ 36 0
10 RX J0838.7-2827 CV* 08 38 43.3520551272 -28 27 01.143230076           ~ 16 0
11 HD 74208 SB* 08 41 21.3076323768 -35 57 15.453023040   8.28 7.91     F2V 13 0
12 4FGL J0841.3-3554 BLL 08 41 21.6333765672 -35 55 05.970173772           ~ 30 1
13 4FGL J0848.7+0508 Bz? 08 48 39.664 +05 06 18.56           ~ 15 0
14 XSS J12270-4859 LXB 12 27 58.7476831464 -48 53 42.824592960           ~ 248 0
15 2MASS J13042100-4353102 BLL 13 04 21.0058097184 -43 53 10.199729472 16.09 15.84 15.71     ~ 57 0
16 RX J130739.6-425939 BLL 13 07 37.9837746648 -42 59 38.986887192 16.39 16.10 15.92 15.80 14.59 ~ 53 0
17 ATPMN J135340.1-663957 Bla 13 53 40.14159 -66 39 57.6631           ~ 29 0
18 2FGL J1419.4+7730 BLL 14 19 00.5 +77 32 27           ~ 37 0
19 1FGL J1544.5-1127 Psr 15 44 14.33 -11 24 42.0           ~ 49 0
20 1RXS J154439.4-112820 X 15 44 39.4 -11 28 20           ~ 25 0
21 2FGL J1553.5-3116 BLL 15 53 33.5452374288 -31 18 31.423004316       15.7   ~ 38 0
22 4FGL J1643.5-0646 BLL 16 43 28.9223009616 -06 46 19.767702828           ~ 36 0
23 2E 4061 BLL 18 23 38.5908949409 -34 54 12.042854022           ~ 40 0
24 2MASS J18414705+3218389 BLL 18 41 47.0421791016 +32 18 39.144474684           ~ 39 0
25 W 49b SNR 19 11 09.000 +09 06 24.00           ~ 440 1
26 87GB 192614.4+614823 BLL 19 26 49.8911645880 +61 54 42.345978048           ~ 38 1
27 2FGL J1933.3+0722 BLL 19 33 20.3033241595 +07 26 21.868875195           ~ 29 0
28 4FGL J1942.7+1033 BLL 19 42 47.4841298280 +10 33 27.102911688           ~ 44 1
29 2MASS J20420604+2426523 BLL 20 42 06.0494502576 +24 26 52.336351968           ~ 39 0
30 BD+49 3420 * 20 56 41.9684258112 +49 40 17.570654508   9.50 8.82     A2 12 0
31 4C 49.35 BLL 20 56 42.7402786032 +49 40 06.604076316           ~ 60 1
32 1FGL J2146.6-1345 Bla 21 46 37.01 -13 43 59.9           ~ 34 0
33 4FGL J2322.8-4916 BLL 23 22 54.42 -49 16 30.1           ~ 32 0
34 2MASS J23291427+3754146 Bla 23 29 14.2674395856 +37 54 14.484094488           ~ 41 1

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2023.01.31-00:50:43

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