2018ApJ...866...24A

Query : 2018ApJ...866...24A

2018ApJ...866...24A - Astrophys. J., 866, 24-24 (2018/October-2)

VERITAS and Fermi-LAT observations of TeV gamma-ray sources discovered by HAWC in the 2HWC catalog.

ABEYSEKARA A.U., ARCHER A., BENBOW W., BIRD R., BROSE R., BUCHOVECKY M., BUCKLEY J.H., BUGAEV V., CHROMEY A.J., CONNOLLY M.P., CUI W., DANIEL M.K., FALCONE A., FENG Q., FINLEY J.P., FORTSON L., FURNISS A., HUTTEN M., HANNA D., HERVET O., HOLDER J., HUGHES G., HUMENSKY T.B., JOHNSON C.A., KAARET P., KAR P., KERTZMAN M., KIEDA D., KRAUSE M., KRENNRICH F., KUMAR S., LANG M.J., LIN T.T.Y., McARTHUR S., MORIARTY P., MUKHERJEE R., O'BRIEN S., ONG R.A., OTTE A.N., PARK N., PETRASHYK A., POHL M., PUESCHEL E., QUINN J., RAGAN K., REYNOLDS P.T., RICHARDS G.T., ROACHE E., RULTEN C., SADEH I., SANTANDER M., SEMBROSKI G.H., SHAHINYAN K., SUSHCH I., TYLER J., WAKELY S.P., WEINSTEIN A., WELLS R.M., WILCOX P., WILHELM A., WILLIAMS D.A., WILLIAMSON T.J., ZITZER B. (The VERITAS Collaboration), ABDOLLAHI S., AJELLO M., BALDINI L., BARBIELLINI G., BASTIERI D., BELLAZZINI R., BERENJI B., BISSALDI E., BLANDFORD R.D., BONINO R., BOTTACINI E., BRANDT T.J., BRUEL P., BUEHLER R., CAMERON R.A., CAPUTO R., CARAVEO P.A., CASTRO D., CAVAZZUTI E., CHARLES E., CHIARO G., CIPRINI S., COHEN-TANUGI J., COSTANTIN D., CUTINI S., D'AMMANDO F., DE PALMA F., DI LALLA N., DI MAURO M., DI VENERE L., DOMINGUEZ A., FAVUZZI C., FEGAN S.J., FRANCKOWIAK A., FUKAZAWA Y., FUNK S., FUSCO P., GARGANO F., GASPARRINI D., GIGLIETTO N., GIORDANO F., GIROLETTI M., GREEN D., GRENIER I.A., GUILLEMOT L., GUIRIEC S., HAYS E., HEWITT J.W., HORAN D., JOHANNESSON G., KENSEI S., KUSS M., LARSSON S., LATRONICO L., LEMOINE-GOUMARD M., LI J., LONGO F., LOPARCO F., LOVELLETTE M.N., LUBRANO P., MAGILL J.D., MALDERA S., MAZZIOTTA M.N., McENERY J.E., MICHELSON P.F., MITTHUMSIRI W., MIZUNO T., MONZANI M.E., MORSELLI A., MOSKALENKO I.V., NEGRO M., NUSS E., OJHA R., OMODEI N., ORIENTI M., ORLANDO E., PALATIELLO M., PALIYA V.S., PANEQUE D., PERKINS J.S., PERSIC M., PESCE-ROLLINS M., PETROSIAN V., PIRON F., PORTER T.A., PRINCIPE G., RAINO S., RANDO R., RANI B., RAZZANO M., RAZZAQUE S., REIMER A., REIMER O., REPOSEUR T., SGRO C., SISKIND E.J., SPANDRE G., SPINELLI P., SUSON D.J., TAJIMA H., THAYER J.B., THOMPSON D.J., TORRES D.F., TOSTI G., TROJA E., VALVERDE J., VIANELLO G., VOGEL M., WOOD K., YASSINE M. (The Fermi-LAT Collaboration), ALFARO R., ALVAREZ C., ALVAREZ J.D., ARCEO R., ARTEAGA-VELAZQUEZ J.C., AVILA ROJAS D., AYALA SOLARES H.A., BECERRIL A., BELMONT-MORENO E., BENZVI S.Y., BERNAL A., BRAUN J., BRISBOIS C., CABALLERO-MORA K.S., CAPISTRAN T., CARRAMINANA A., CASANOVA S., CASTILLO M., COTTI U., COTZOMI J., COUTINO DE LEON S., DE LEON C., DE LA FUENTE E., DICHIARA S., DINGUS B.L., DUVERNOIS M.A., DIAZ-VELEZ J.C., ENGEL K., ENRIQUEZ-RIVERA O., FIORINO D.W., FLEISCHHACK H., FRAIJA N., GARCIA-GONZALEZ J.A., GARFIAS F., GONZALEZ MUNOZ A., GONZALEZ M.M., GOODMAN J.A., HAMPEL-ARIAS Z., HARDING J.P., HERNANDEZ S., HERNANDEZ-ALMADA A., HONA B., HUEYOTL-ZAHUANTITLA F., HUI C.M., HUNTEMEYER P., IRIARTE A., JARDIN-BLICQ A., JOSHI V., KAUFMANN S., LARA A., LAUER R.J., LEE W.H., LENNARZ D., LEON VARGAS H., LINNEMANN J.T., LONGINOTTI A.L., LUIS-RAYA G., LUNA-GARCIA R., LOPEZ-COTO R., MALONE K., MARINELLI S.S., MARTINEZ O., MARTINEZ-CASTELLANOS I., MARTINEZ-CASTRO J., MARTINEZ-HUERTA H., MATTHEWS J.A., MIRANDA-ROMAGNOLI P., MORENO E., MOSTAFA M., NAYERHODA A., NELLEN L., NEWBOLD M., NISA M.U., NORIEGA-PAPAQUI R., PELAYO R., PRETZ J., PEREZ-PEREZ E.G., REN Z., RHO C.D., RIVIERE C., ROSA-GONZALEZ D., ROSENBERG M., RUIZ-VELASCO E., SALAZAR H., SALESA GREUS F., SANDOVAL A., SCHNEIDER M., SEGLAR ARROYO M., SINNIS G., SMITH A.J., SPRINGER R.W., SURAJBALI P., TABOADA I., TIBOLLA O., TOLLEFSON K., TORRES I., UKWATTA T.N., VILLASENOR L., WEISGARBER T., WESTERHOFF S., WISHER I.G., WOOD J., YAPICI T., YODH G., ZEPEDA A., ZHOU H. (The HAWC Collaboration)

Abstract (from CDS):

The High Altitude Water Cherenkov (HAWC) collaboration recently published their 2HWC catalog, listing 39 very high energy (VHE; >100 GeV) gamma-ray sources based on 507 days of observation. Among these, 19 sources are not associated with previously known teraelectronvolt (TeV) gamma-ray sources. We have studied 14 of these sources without known counterparts with VERITAS and Fermi-LAT. VERITAS detected weak gamma-ray emission in the 1 TeV-30 TeV band in the region of DA 495, a pulsar wind nebula coinciding with 2HWC J1953+294, confirming the discovery of the source by HAWC. We did not find any counterpart for the selected 14 new HAWC sources from our analysis of Fermi-LAT data for energies higher than 10 GeV. During the search, we detected gigaelectronvolt (GeV) gamma-ray emission coincident with a known TeV pulsar wind nebula, SNR G54.1+0.3 (VER J1930+188), and a 2HWC source, 2HWC J1930+188. The fluxes for isolated, steady sources in the 2HWC catalog are generally in good agreement with those measured by imaging atmospheric Cherenkov telescopes. However, the VERITAS fluxes for SNR G54.1+0.3, DA 495, and TeV J2032+4130 are lower than those measured by HAWC, and several new HAWC sources are not detected by VERITAS. This is likely due to a change in spectral shape, source extension, or the influence of diffuse emission in the source region.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): gamma rays: general

Simbad objects: 36

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Number of rows : 36
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 M 1 SNR 05 34 31.8 +22 01 03           ~ 6516 1
2 PSR B0656+14 Psr 06 59 48.18800 +14 14 19.2000   24.85 24.90     ~ 943 1
3 2HWC J0819+157 gam 08 19.9 +15 47           ~ 4 0
4 2HWC J1040+308 gam 10 40.9 +30 52           ~ 3 0
5 HESS J1848-018 gam 18 47 48.72 -01 45 12.5           ~ 32 0
6 2HWC J1852+013 gam 18 52 12.48 +01 20 34.8           ~ 7 0
7 2HWC J1902+048 gam 19 02.0 +04 52           ~ 4 0
8 2HWC J1907+084 gam 19 07 08.88 +08 34 26.8           ~ 8 0
9 ARGO J1907+0627 gam 19 08 12.24 +06 23 30.8           ~ 94 0
10 2HWC J1914+117 gam 19 14 42.5 +11 52 20           ~ 9 0
11 W 51 SNR 19 23 50 +14 06.0           ~ 1352 1
12 PSR J1925+1720 Psr 19 25 27.031 +17 20 27.31           ~ 40 1
13 2HWC J1928+177 gam 19 28 25.0 +17 49 04           ~ 16 0
14 3FGL J1928.4+1838 Bz? 19 28 27 +18 38.0           ~ 6 0
15 PSR J1928+1746 Psr 19 28 42.8 +17 46 27           ~ 62 0
16 SNR G054.1+00.3 SNR 19 30 10.6 +18 50 22           ~ 271 1
17 PSR J1930+1852 Psr 19 30 30.13 +18 52 14.1           ~ 110 1
18 PSR J1932+1916 Psr 19 32 19.775 +19 16 38.06           ~ 33 0
19 2HWC J1938+238 gam 19 40 11.8 +23 45 56           ~ 5 0
20 3FGL J1949.3+2433 gam 19 49 19 +24 33.9           ~ 7 0
21 2HWC J1949+244 gam 19 50 44.6 +24 15 20           ~ 6 0
22 SNR G065.7+01.2 SNR 19 52 13.70 +29 25 08.0           ~ 106 0
23 VER J1952+293 gam 19 52 15 +29 23.0           ~ 4 0
24 1WGA J1952.2+2925 X 19 52 17.0 +29 25 53           ~ 11 0
25 3FGL J1951.6+2926 gam 19 52 52.2 +29 24 02           ~ 13 0
26 2HWC J1953+294 gam 19 53.0 +29 29           ~ 10 0
27 PSR J1954+2836 Psr 19 54 19.144 +28 36 04.84           ~ 62 0
28 SNR G065.1+00.6 SNR 19 54.7 +28 35           ~ 65 0
29 2HWC J1955+285 gam 19 54 47 +28 37.9           ~ 8 0
30 PSR J1958+2846 Psr 19 58 40.1015582448 +28 45 54.108736344           ~ 81 0
31 2HWC J2006+341 gam 20 06.2 +34 11           ~ 15 0
32 1LHAASO J2018+3643u gam 20 18.6 +36 43           ~ 67 0
33 2HWC J2019+367 gam 20 19.8 +36 48           ~ 24 0
34 2HWC J2024+417 gam 20 24.2 +41 46           ~ 4 0
35 NAME Cyg X Cld 20 30 04.7973633 +40 51 36.002197           ~ 962 1
36 TeV J2032+4130 gam 20 31.7 +41 31           ~ 148 0

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