2016ApJ...819...44A

Query : 2016ApJ...819...44A

2016ApJ...819...44A - Astrophys. J., 819, 44 (2016/March-1)

Fermi-LAT observations of high-energy gamma-ray emission toward the Galactic Center.

AJELLO M., ALBERT A., ATWOOD W.B., BARBIELLINI G., BASTIERI D., BECHTOL K., BELLAZZINI R., BISSALDI E., BLANDFORD R.D., BLOOM E.D., BONINO R., BOTTACINI E., BRANDT T.J., BREGEON J., BRUEL P., BUEHLER R., BUSON S., CALIANDRO G.A., CAMERON R.A., CAPUTO R., CARAGIULO M., CARAVEO P.A., CECCHI C., CHEKHTMAN A., CHIANG J., CHIARO G., CIPRINI S., COHEN-TANUGI J., COMINSKY L.R., CONRAD J., CUTINI S., D'AMMANDO F., DE ANGELIS A., DE PALMA F., DESIANTE R., DI VENERE L., DRELL P.S., FAVUZZI C., FERRARA E.C., FUSCO P., GARGANO F., GASPARRINI D., GIGLIETTO N., GIOMMI P., GIORDANO F., GIROLETTI M., GLANZMAN T., GODFREY G., GOMEZ-VARGAS G.A., GRENIER I.A., GUIRIEC S., GUSTAFSSON M., HARDING A.K., HEWITT J.W., HILL A.B., HORAN D., JOGLER T., JOHANNESSON G., JOHNSON A.S., KAMAE T., KARWIN C., KNODLSEDER J., KUSS M., LARSSON S., LATRONICO L., LI J., LI L., LONGO F., LOPARCO F., LOVELLETTE M.N., LUBRANO P., MAGILL J., MALDERA S., MALYSHEV D., MANFREDA A., MAYER M., MAZZIOTTA M.N., MICHELSON P.F., MITTHUMSIRI W., MIZUNO T., MOISEEV A.A., MONZANI M.E., MORSELLI A., MOSKALENKO I.V., MURGIA S., NUSS E., OHNO M., OHSUGI T., OMODEI N., ORLANDO E., ORMES J.F., PANEQUE D., PESCE-ROLLINS M., PIRON F., PIVATO G., PORTER T.A., RAINO S., RANDO R., RAZZANO M., REIMER A., REIMER O., RITZ S., SANCHEZ-CONDE M., SAZ PARKINSON P.M., SGRO C., SISKIND E.J., SMITH D.A., SPADA F., SPANDRE G., SPINELLI P., SUSON D.J., TAJIMA H., TAKAHASHI H., THAYER J.B., TORRES D.F., TOSTI G., TROJA E., UCHIYAMA Y., VIANELLO G., WINER B.L., WOOD K.S., ZAHARIJAS G. and ZIMMER S.

Abstract (from CDS):

The Fermi Large Area Telescope (LAT) has provided the most detailed view to date of the emission toward the Galactic center (GC) in high-energy γ-rays. This paper describes the analysis of data taken during the first 62 months of the mission in the energy range 1-100 GeV from a 15°x15° region about the direction of the GC. Specialized interstellar emission models (IEMs) are constructed to enable the separation of the γ-ray emissions produced by cosmic ray particles interacting with the interstellar gas and radiation fields in the Milky Way into that from the inner ∼1 kpc surrounding the GC, and that from the rest of the Galaxy. A catalog of point sources for the 15°x15° region is self-consistently constructed using these IEMs: the First Fermi-LAT Inner Galaxy Point Source Catalog (1FIG). The spatial locations, fluxes, and spectral properties of the 1FIG sources are presented, and compared with γ-ray point sources over the same region taken from existing catalogs. After subtracting the interstellar emission and point-source contributions a residual is found. If templates that peak toward the GC are used to model the positive residual the agreement with the data improves, but none of the additional templates tried account for all of its spatial structure. The spectrum of the positive residual modeled with these templates has a strong dependence on the choice of IEM.

Abstract Copyright: ∼

Journal keyword(s): cosmic rays - Galaxy: center - gamma-rays: general - gamma-rays: ISM - radiation mechanisms: non-thermal

VizieR on-line data: <Available at CDS (J/ApJ/819/44): table3.dat table7.dat>

Nomenclature: Tables 3+7: 1FIG JHHMM.m+DDMM N=48.

Simbad objects: 65

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Number of rows : 65
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 PSR J1701-30 Psr 17 01 12.513 -30 06 30.13           ~ 18 2
2 M 62 GlC 17 01 12.60 -30 06 44.5           ~ 627 0
3 NGC 6316 GlC 17 16 37.42 -28 08 24.0   10.33 9.03     ~ 220 0
4 3EG J1717-2737 gam 17 16 42.7 -28 08 49           ~ 22 0
5 ICRF J171736.0-334208 BLL 17 17 36.02929270 -33 42 08.8296186   20.93   17.3   ~ 128 1
6 3FGL J1718.1-3056 BLL 17 18 05.2 -30 56 17           ~ 24 1
7 1FIG J1728.6-3433 gam 17 28 57.9 -34 33 19           ~ 1 0
8 1FIG J1729.1-3502 gam 17 29 11.9 -35 02 36           ~ 1 0
9 1FIG J1730.2-3351 gam 17 30 17.7 -33 51 00           ~ 1 0
10 SNR G354.1+00.1 SNR 17 30.5 -33 46           ~ 17 1
11 SNR G355.4+00.7 SNR 17 31 20.000 -32 26 00.00           ~ 19 0
12 1FIG J1731.3-3235 gam 17 31 34.1 -32 35 21           ~ 1 0
13 2FGL J1731.8-3004 Bla 17 31 46.851021 -30 03 08.93949           ~ 30 1
14 PSR J1732-31 Psr 17 32 33.551 -31 31 20.85           ~ 72 0
15 1FIG J1734.6-3228 gam 17 34 57.4 -32 28 50           ~ 1 0
16 1FIG J1735.4-3030 gam 17 35 39.5 -30 30 31           ~ 1 0
17 1FIG J1736.1-3150 gam 17 36 11.4 -31 51 06           ~ 1 0
18 1FIG J1736.1-3422 gam 17 36 16.5 -34 22 03           ~ 1 0
19 1FIG J1737.4-3144 gam 17 37 40.8 -31 44 43           ~ 1 0
20 Fermi J1740.1-3013 gam 17 40 06.0 -30 13 00           ~ 3 0
21 1FIG J1740.1-3057 gam 17 40 10.4 -30 57 28           ~ 1 0
22 NAME Tornado Nebula SNR 17 40 16.360 -30 58 18.87           ~ 144 0
23 EGR J1740-2851 gam 17 40 29.3 -28 50 48           ~ 10 0
24 3FHL J1741.8-2536 BLL 17 41 54.34 -25 37 41.3           ~ 26 0
25 PSR J1741-2054 Psr 17 41 57.282 -20 54 04.11           ~ 114 1
26 PSR J1742-3321 Psr 17 42 11.5869141 -33 21 20.552673           ~ 16 0
27 1FIG J1744.2-2930 gam 17 44 17.0 -29 30 29           ~ 1 0
28 3FHL J1746.2-2852 LXB 17 44 33.09 -28 44 27.0           ~ 537 0
29 1FIG J1745.0-2905 gam 17 45 01.5 -29 05 28           ~ 1 0
30 3FGL J1744.7-3043 N*? 17 45 08.6 -30 35 37           ~ 9 0
31 2CG 359+00 gam 17 45 11 -30 11.9           ~ 101 0
32 NAME Fermi Bubbles bub 17 45 -29.0           ~ 441 0
33 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14510 0
34 NAME Sgr A East Rad 17 45 41 -29 00.8           ~ 496 2
35 1FIG J1745.5-2859 gam 17 45 50.7 -28 59 23           ~ 1 0
36 SNR G000.3+00.0 Rad 17 46 15 -28 38.0           ~ 39 1
37 CXO J174621.6-285257 X 17 46 21.51 -28 52 56.5           ~ 23 0
38 1FIG J1746.4-2843 gam 17 46 43.3 -28 43 55           ~ 1 0
39 PSR J1746-3239 Psr 17 46 55.143 -32 39 36.36           ~ 27 0
40 3FGL J1747.0-2828 gam 17 47 06 -28 28.9           ~ 8 0
41 PSR J1747-2958 Psr 17 47 15.869 -29 58 00.93           ~ 133 1
42 1FIG J1748.2-2856 gam 17 47 46 -29 04.5           ~ 8 0
43 1FIG J1747.6-2442 gam 17 47 56.1 -24 42 42           ~ 1 0
44 Cl Terzan 5 Cl* 17 48 05.00 -24 46 48.0           ~ 855 1
45 1FIG J1748.2-2816 gam 17 48 22 -28 15.5           ~ 8 0
46 3FGL J1749.2-2911 gam 17 49 16 -29 11.6           ~ 6 0
47 NGC 6441 GlC 17 50 13.06 -37 03 05.2           ~ 891 0
48 3FGL J1750.2-3704 gam 17 50 18.8 -37 02 43           ~ 8 0
49 2FGL J1754.1-2930 gam 17 53 56.59 -29 29 53.5           ~ 20 0
50 1FGL J1754.5-2537c gam 17 54 09.74 -25 44 09.4           ~ 19 0
51 1FIG J1755.5-2511 gam 17 55 52.5 -25 11 09           ~ 1 0
52 3FGL J1758.8-2346 gam 17 59 07.4 -23 47 51           ~ 10 0
53 2FGL J1758.8-2402c Bz? 17 59 22.40 -24 01 22.3           ~ 17 0
54 SNR G006.4-00.1 SNR 18 00 31.2011719 -23 25 48.001099           ~ 741 1
55 1FGL J1800.5-2359c gam 18 00 44.2 -23 56 00           ~ 24 0
56 1FIG J1801.1-2313 gam 18 01 06.2 -23 13 06           ~ 1 0
57 1FIG J1801.2-2451 gam 18 01 22.6 -24 51 55           ~ 1 0
58 1FIG J1801.4-2330 gam 18 01 44.2 -23 30 30           ~ 1 0
59 1FIG J1801.6-2358 gam 18 01 58.8 -23 58 37           ~ 1 0
60 SNR G006.5-00.4 SNR 18 02.2 -23 34           ~ 26 0
61 3FGL J1802.4-3043 gam 18 02 27.5 -30 41 57           ~ 9 0
62 2FGL J1808.3-3356 gam 18 08 24.4 -33 58 54           ~ 17 0
63 PSR J1809-2332 Psr 18 09 50.250 -23 32 22.68     21.47 19.61 17.48 M5 94 0
64 NAME Cyg Complex reg 20 32 +45.0           ~ 602 0
65 NAME Galactic Bar reg ~ ~           ~ 1231 0

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