2012A&A...538A..63B


Query : 2012A&A...538A..63B

2012A&A...538A..63B - Astronomy and Astrophysics, volume 538A, 63-63 (2012/2-1)

AGILE detection of Cygnus X-3 γ-ray active states during the period mid-2009/mid-2010.

BULGARELLI A., TAVANI M., CHEN A.W., EVANGELISTA Y., TRIFOGLIO M., GIANOTTI F., PIANO G., SABATINI S., STRIANI E., POOLEY G., TRUSHKIN S., NIZHELSKIJ N.A., McCOLLOUGH M., KOLJONEN K.I.I., HANNIKAINEN D., LAEHTEENMAEKI A., TAMMI J., LAVONEN N., STEEGHS D., ABOUDAN A., ARGAN A., BARBIELLINI G., CAMPANA R., CARAVEO P., CATTANEO P.W., COCCO V., CONTESSI T., COSTA E., D'AMMANDO F., DEL MONTE E., DE PARIS G., DI COCCO G., DONNARUMMA I., FEROCI M., FIORINI M., FUSCHINO F., GALLI M., GIULIANI A., GIUSTI M., LABANTI C., LAPSHOV I., LAZZAROTTO F., LIPARI P., LONGO F., MARISALDI M., MEREGHETTI S., MORELLI E., MORETTI E., MORSELLI A., PACCIANI L., PELLIZZONI A., PEROTTI F., PICOZZA P., PILIA M., PREST M., PUCELLA G., RAPISARDA M., RAPPOLDI A., RUBINI A., SOFFITTA P., TROIS A., VALLAZZA E., VERCELLONE S., VITTORINI V., ZAMBRA A., ZANELLO D., GIOMMI P., PITTORI C., VERRECCHIA F., SANTOLAMAZZA P., LUCARELLI F., COLAFRANCESCO S. and SALOTTI L.

Abstract (from CDS):

Cygnus X-3 (Cyg X-3) is a well-known microquasar producing variable emission at all wavelengths. Cyg X-3 is a prominent X-ray binary producing relativistic jets, and studying its high energy emission is crucial for the understanding of the fundamental acceleration processes in accreting compact objects. Our goal is to study extreme particle acceleration and γ-ray production above 100MeV during special spectral states of Cyg X-3 usually characterized by a low hard X-ray flux and enhanced soft X-ray states. We observed Cyg X-3 with the AGILE satellite in extended time intervals from 2009 Jun.-Jul., and 2009 Nov.-2010 Jul. We report here the results of the AGILE γ-ray monitoring of Cyg X-3 as well as the results from extensive multiwavelength campaigns involving radio (RATAN-600, AMI-LA and Metsaehovi Radio Observatories) and X-ray monitoring data (XTE and Swift). We detect a series of repeated γ-ray flaring activity from Cyg X-3 that correlate with the soft X-ray states and episodes of decreasing or non-detectable hard X-ray emission. Furthermore, we detect γ-ray enhanced emission that tends to be associated with radio flares greater than 1Jy at 15GHz, confirming a trend already detected in previous observations. The source remained active above 100MeV for an extended period of time (almost 1.5 months in 2009 Jun.-Jul. and 1 month in 2010 May). We study in detail the short timescale γ-ray flares that occurred before or near the radio peaks. Our results confirm the transient nature of the extreme particle acceleration from the microquasar Cyg X-3. A series of repeated γ-ray flares shows correlations with radio and X-ray emission confirming a well established trend of emission. We compare our results with Fermi-LAT and MAGIC TeV observations of Cyg X-3.

Abstract Copyright:

Journal keyword(s): gamma-rays: stars - stars: individual: Cygnus X-3

Simbad objects: 33

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Number of rows : 33
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 AGL J0247+6027 gam 02 46.9 +60 27           ~ 1 1
2 PSR J0248+6021 Psr 02 48 18.642 +60 21 34.70           ~ 42 1
3 AGL J0303+7438 gam 03 03.0 +74 38           ~ 1 1
4 PSR J0308+7442 Psr 03 07 53.4 +74 43 00           ~ 19 1
5 PSR J1135-6055 Psr 11 35 08.428 -60 55 36.50           ~ 24 1
6 AGL J1136-6053 gam 11 36.2 -60 53           ~ 1 1
7 PSR J1429-5911 Psr 14 29 58.564 -59 11 36.02           ~ 27 1
8 AGL J1435-5932 gam 14 34.7 -59 33           ~ 1 1
9 AGL J1953+3254 gam 19 52.8 +32 54           ~ 1 1
10 PSR B1951+32 Psr 19 52 58.181 +32 52 40.98           ~ 569 2
11 AGL J2016+3644 gam 20 16.3 +36 44           ~ 2 0
12 AGL J2019+3816 gam 20 19.7 +38 16           ~ 2 0
13 NAME gam Cyg SNR SNR 20 20 17.100 +40 26 09.00           ~ 210 2
14 PSR J2021+3651 Psr 20 21 05.40 +36 51 04.5           ~ 161 1
15 GRO J2019+40 gam 20 21.5 +40 26           ~ 127 1
16 PSR J2021+4026 Psr 20 21 30.496 +40 26 53.56           ~ 220 2
17 AGL J2021+4029 gam 20 21.9 +40 30           ~ 6 1
18 * gam Cyg V* 20 22 13.7018357 +40 15 24.044963 3.44 2.90 2.23 1.74 1.40 F8Ib 567 0
19 AGL J2024+4027 gam 20 24.5 +40 27           ~ 2 0
20 AGL J2026+3346 gam 20 26.1 +33 46           ~ 2 0
21 NAME Cyg X Cld 20 28 41 +41 10.2           ~ 713 1
22 AGL J2029+4403 gam 20 28.9 +44 03           ~ 2 0
23 AGL J2030+4129 gam 20 30.9 +41 30           ~ 2 1
24 NAME Cyg Complex reg 20 32 +45.0           ~ 553 0
25 [MT91] 213 Be* 20 32 13.1247390384 +41 27 24.346666440 13.12 13.08 11.266     B0Vp 246 0
26 V* V1521 Cyg HXB 20 32 25.78 +40 57 27.9           WN4/5-6/7 1857 2
27 1AGL J2032+4102 gam 20 32 27.70 +41 02 00.0           ~ 8 1
28 AGL J2033+4056 gam 20 33.2 +40 57           ~ 1 1
29 AGL J2036+3954 gam 20 36.6 +39 54           ~ 2 0
30 AGL J2038+4313 gam 20 38.4 +43 14           ~ 2 0
31 AGL J2046+5032 gam 20 46.8 +50 33           ~ 2 0
32 AGL J2224+6113 gam 22 24.8 +61 13           ~ 1 1
33 PSR J2229+6114 Psr 22 29 05.262 +61 14 08.48           ~ 194 2

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2022.05.26-05:59:00

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