2013ApJ...765...54A

Query : 2013ApJ...765...54A

2013ApJ...765...54A - Astrophys. J., 765, 54 (2013/March-1)

Determination of the point-spread function for the Fermi large area telescope from on-orbit data and limits on pair halos of active galactic nuclei.

ACKERMANN M., AJELLO M., ALLAFORT A., ASANO K., ATWOOD W.B., BALDINI L., BALLET J., BARBIELLINI G., BASTIERI D., BECHTOL K., BELLAZZINI R., BLOOM E.D., BONAMENTE E., BORGLAND A.W., BOTTACINI E., BRANDT T.J., BREGEON J., BRIGIDA M., BRUEL P., BUEHLER R., BURNETT T.H., BUSETTO G., BUSON S., CALIANDRO G.A., CAMERON R.A., CARAVEO P.A., CASANDJIAN J.M., CECCHI C., CHARLES E., CHATY S., CHEKHTMAN A., CHEUNG C.C., CHIANG J., CILLIS A.N., CIPRINI S., CLAUS R., COHEN-TANUGI J., COLAFRANCESCO S., CONRAD J., CUTINI S., D'AMMANDO F., DE PALMA F., DERMER C.D., DO COUTO E SILVA E., DRELL P.S., DRLICA-WAGNER A., DUBOIS R., FAVUZZI C., FEGAN S.J., FERRARA E.C., FOCKE W.B., FORTIN P., FUKAZAWA Y., FUNK S., FUSCO P., GARGANO F., GASPARRINI D., GEHRELS N., GERMANI S., GIGLIETTO N., GIORDANO F., GIROLETTI M., GLANZMAN T., GODFREY G., GRANDI P., GRENIER I.A., GROVE J.E., GUIRIEC S., HADASCH D., HAYASHIDA M., HAYS E., HORAN D., HOU X., HUGHES R.E., JACKSON M.S., JOGLER T., JOHANNESSON G., JOHNSON R.P., JOHNSON A.S., KAMAE T., KATAOKA J., KERR M., KNODLSEDER J., KUSS M., LANDE J., LARSSON S., LATRONICO L., LAVALLEY C., LEE S.-H., LONGO F., LOPARCO F., LOTT B., LOVELLETTE M.N., LUBRANO P., MAZZIOTTA M.N., McCONVILLE W., McENERY J.E., MEHAULT J., MICHELSON P.F., MIGNANI R.P., MITTHUMSIRI W., MIZUNO T., MOISEEV A.A., MONTE C., MONZANI M.E., MORSELLI A., MOSKALENKO I.V., MURGIA S., NAUMANN-GODO M., NEMMEN R., NISHINO S., NORRIS J.P., NUSS E., OHSUGI T., OMODEI N., ORIENTI M., ORLANDO E., ORMES J.F., PANEQUE D., PANETTA J.H., PELASSA V., PERKINS J.S., PESCE-ROLLINS M., PIERBATTISTA M., PIRON F., PIVATO G., POON H., PORTER T.A., RAINO S., RANDO R., RAZZANO M., RAZZAQUE S., REIMER A., REIMER O., REYES L.C., RITZ S., ROCHESTER L.S., ROMOLI C., ROTH M., SANCHEZ D.A., SAZ PARKINSON P.M., SCARGLE J.D., SGRO C., SISKIND E.J., SNYDER A., SPANDRE G., SPINELLI P., STEPHENS T.E., SUSON D.J., TAJIMA H., TAKAHASHI H., TANAKA T., THAYER J.G., THAYER J.B., THOMPSON D.J., TIBALDO L., TIBOLLA O., TINIVELLA M., TOSTI G., TROJA E., USHER T.L., VANDENBROUCKE J., VASILEIOU V., VIANELLO G., VITALE V., VON KIENLIN A., WAITE A.P., WALLACE E., WELTEVREDE P., WINER B.L., WOOD K.S., WOOD M., YANG Z. and ZIMMER S.

Abstract (from CDS):

The Large Area Telescope (LAT) on the Fermi Gamma-ray Space Telescope is a pair-conversion telescope designed to detect photons with energies from ~20 MeV to >300 GeV. The pre-launch response functions of the LAT were determined through extensive Monte Carlo simulations and beam tests. The point-spread function (PSF) characterizing the angular distribution of reconstructed photons as a function of energy and geometry in the detector is determined here from two years of on-orbit data by examining the distributions of γ rays from pulsars and active galactic nuclei (AGNs). Above 3 GeV, the PSF is found to be broader than the pre-launch PSF. We checked for dependence of the PSF on the class of γ-ray source and observation epoch and found none. We also investigated several possible spatial models for pair-halo emission around BL Lac AGNs. We found no evidence for a component with spatial extension larger than the PSF and set upper limits on the amplitude of halo emission in stacked images of low- and high-redshift BL Lac AGNs and the TeV blazars 1ES0229+200 and 1ES0347-121.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - galaxies: halos - gamma rays: galaxies - instrumentation: detectors - intergalactic medium

Simbad objects: 74

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Number of rows : 74
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 KUV 00311-1938 BLL 00 33 34.3800569400 -19 21 33.134193864       16.6   ~ 125 0
2 QSO B0118-272 BLL 01 20 31.6628068344 -27 01 24.636341064   15.89 15.56 15.49   ~ 288 1
3 1RXS J013632.9+390556 BLL 01 36 32.5983798936 +39 05 59.199517428       15.5   ~ 146 2
4 6C 013354+473615 Bla 01 36 58.59480326 +47 51 29.1000720     19.50 19.25 15.21 ~ 537 1
5 QSO J0217+0144 Bla 02 17 48.95475095 +01 44 49.6990271   16.74 16.09 18.51 13.29 ~ 455 1
6 6C 021803+354230 BLL 02 21 05.4920852208 +35 56 13.848581904   20.0 20.0 19.60   ~ 603 3
7 RX J0232.8+2017 BLL 02 32 48.6148874688 +20 17 17.486717388     18.00 13.96   ~ 387 1
8 QSO B0235+1624 BLL 02 38 38.93010450 +16 36 59.2745528   16.46 15.50 15.92   ~ 1614 2
9 PKS J0303-2407 BLL 03 03 26.5025589984 -24 07 11.426291220   16.55 16.18     ~ 249 1
10 NGC 1275 Bla 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4243 3
11 ICRF J033415.4-372543 BLL 03 34 15.4249837080 -37 25 43.063647672 16.95 16.71 16.56     ~ 80 1
12 QSO B0347-121 BLL 03 49 23.1862105584 -11 59 27.366035532   18.74 18.2 17.46   ~ 245 1
13 QSO B0420-0127 Bla 04 23 15.80072217 -01 20 33.0656073   17.50 17.00 16.28   ~ 1263 3
14 WISEA J042840.41-375619.3 BLL 04 28 40.4241894720 -37 56 19.580735832   18.96 19.0 17.21   ~ 343 1
15 RX J0433.6+2906 BLL 04 33 37.82985981 +29 05 55.4770576   19.0 17.80 17.06   ~ 181 1
16 QSO B0440-003 Bla 04 42 38.66072366 -00 17 43.4209582   19.59 19.22 17.85   ~ 433 1
17 PKS J0449-4350 BLL 04 49 24.6981911928 -43 50 08.960970948 14.95 17.52 15.24 16.27   ~ 190 1
18 QSO J0457-2324 Bla 04 57 03.1791422424 -23 24 52.021129572   18.85 18.5 16.56   ~ 435 1
19 RX J0507.9+6737 BLL 05 07 56.1631660632 +67 37 24.225299292       17.2   ~ 196 1
20 PMN J0509+0541 BLL 05 09 25.9644373872 +05 41 35.333820420 15.32 14.95 14.78 15.12   ~ 589 2
21 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
22 V* CM Tau Psr 05 34 31.9474694616 +22 00 52.153698024           ~ 5476 0
23 QSO B0537-441 BLL 05 38 50.36155950 -44 05 08.9390233   15.77 16.48 16   ~ 924 2
24 PMN J0630-2406 BLL 06 30 59.5217586120 -24 06 46.204083144 16.48 16.22 16.04 16   ~ 97 1
25 PSR J0633+1746 Psr 06 33 54.153 +17 46 12.91           ~ 1308 0
26 2MASS J07003124-6610452 BLL 07 00 31.2536435688 -66 10 45.229749384 16.38 15.99 15.89     ~ 86 3
27 7C 071604.59+331243.00 BLL 07 19 19.41966120 +33 07 09.7087082   17.66 17.05     ~ 130 1
28 QSO J0730-116 Bla 07 30 19.11247452 -11 41 12.6006642     20.30 20.3   ~ 323 1
29 QSO J0738+1742 BLL 07 38 07.39375312 +17 42 18.9981506   16.76 16.22 15.78   ~ 1045 1
30 QSO B0805-077 Bla 08 08 15.53603763 -07 51 09.8865298     19.80 16.71   ~ 291 1
31 7C 081451.89+423206.00 BLL 08 18 15.99961476 +42 22 45.4148987   18.88 18.18 17.81   ~ 429 1
32 QSO B0823-223 BLL 08 26 01.5730900658 -22 30 27.204409684   16.11 16.20     ~ 224 1
33 NAME Vela X Psr 08 33 08.880 -45 11 24.36           ~ 302 1
34 NAME Vela SNR 08 34.0 -45 50           ~ 1331 2
35 NAME Vela Pulsar Psr 08 35 20.65525 -45 10 35.1545     15.10     ~ 2446 1
36 6C 091740+445437 Bla 09 20 58.45848666 +44 41 53.9850947   18.40 18.16 16.55   ~ 407 1
37 4C 55.17 Bla 09 57 38.1839604096 +55 22 57.754950636   18.24 17.89     ~ 459 1
38 RX J1015.0+4926 BLL 10 15 04.1396533776 +49 26 00.706055496   16.56 16.15 14.58   ~ 400 3
39 4C 01.28 BLL 10 58 29.60520810 +01 33 58.8237454   18.74 18.28 16.68   ~ 828 2
40 RX J1058.6+5628 BLL 10 58 37.7276569824 +56 28 11.207405028   16.80 16.31 14.58   ~ 232 1
41 Z 184-50 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2841 1
42 Ton 599 Bla 11 59 31.83391383 +29 14 43.8268224   14.80 14.41 17.652 13.39 ~ 989 1
43 7C 1219+2830 BLL 12 21 31.6904439888 +28 13 58.500308172   16.81 16.11 14.24   ~ 924 1
44 7C 122223.5+213929 Bla 12 24 54.4583146056 +21 22 46.385507388   17.56 17.50 18.2   ~ 770 2
45 QSO J1246-2547 Bla 12 46 46.80203943 -25 47 49.2889822   17.65 17.41 16.96 15.5 ~ 314 1
46 LB 2449 BLL 12 48 18.7847605224 +58 20 28.717260720   16.10 15.78 15.19   ~ 215 1
47 1RXS J125311.9+530105 BLL 12 53 11.9204702472 +53 01 11.737422696   18.07 17.51 16.4   ~ 143 1
48 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 3205 2
49 6C 131034+484447 Bla 13 12 43.35362141 +48 28 30.9405577   21.8 20.3 20.00   ~ 109 1
50 ICRF J134414.4-172340 Bla 13 44 14.40245387 -17 23 40.3956453       19.55   ~ 109 1
51 PG 1424+240 BLL 14 27 00.3917926224 +23 48 00.037510776 14.52 14.34 14.95 14.5   ~ 420 1
52 PKS J1443-3908 BLL 14 43 57.1974184800 -39 08 40.053885612       14.7   ~ 105 1
53 QSO J1457-3539 BLL 14 57 26.71171449 -35 39 09.9716148   17.95 19.50 18.93   ~ 167 1
54 QSO B1502+1041 Bla 15 04 24.97978391 +10 29 39.1985309   18.97 18.56 18.94   ~ 634 1
55 ESO 514-1 BLL 15 17 41.8134049824 -24 22 19.482207024   15.13 14.00 13.95   ~ 815 3
56 7C 1520+3154 Bla 15 22 09.99173254 +31 44 14.3819383   20.45 19.89 19.87   ~ 230 1
57 QSO B1542+614 BLL 15 42 56.9436243096 +61 29 55.346749080   16.9 16.25 16.6   ~ 159 1
58 PG 1553+113 BLL 15 55 43.0440048528 +11 11 24.365649948 14.91 14.72 14.57 13.99   ~ 672 1
59 Z 225-7 BLL 16 53 52.21668403 +39 45 36.6088754 14.09 14.15 13.29 8.26   ~ 2304 2
60 RX J1725.0+1152 BLL 17 25 04.3409350008 +11 52 15.471967296   16.29 15.77 14.45   ~ 221 1
61 ICRF J180242.6-394007 Bla 18 02 42.68005300 -39 40 07.9081646       17.3   ~ 126 1
62 ICRF J190311.6+554038 BLL 19 03 11.6077129056 +55 40 38.450387568   18.1   16.4   ~ 121 2
63 PMN J1917-1921 BLL 19 17 44.8192343976 -19 21 31.608315216       15.24   ~ 135 1
64 [VV2006] J192332.2-210433 Bla 19 23 32.18981392 -21 04 33.3331234   15.32 17.50 16.70   ~ 180 3
65 QSO B1959+650 BLL 19 59 59.8520303688 +65 08 54.652536492     12.8 11.21   ~ 699 2
66 PKS J2009-4849 BLL 20 09 25.3903899240 -48 49 53.725051056   15.75 12.81 11.41   ~ 604 1
67 QSO B2022-077 BLL 20 25 40.6602562440 -07 35 52.688047128   18.5       ~ 234 3
68 QSO B2052-474 Bla 20 56 16.35980507 -47 14 47.6277179   18.29 19.1 18.07   ~ 341 1
69 QSO B2136-428 BLL 21 39 24.1733820912 -42 35 20.465859048   16.50 16.2 15.7   ~ 97 1
70 PKS J2158-3013 BLL 21 58 52.0652249880 -30 13 32.118447792   13.36 13.09 12.62   ~ 1829 1
71 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2397 1
72 QSO B2201+1711 BLL 22 03 26.89368237 +17 25 48.2477620     19.50 14.76   ~ 221 1
73 3C 454.3 Bla 22 53 57.7480438728 +16 08 53.561508864   16.57 16.10 15.22   ~ 3004 2
74 QSO B2326-502 Bla 23 29 20.8816086312 -49 55 40.657964772   19.0 19.0 20.86   ~ 114 1

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