A search for very high energy flares from the microquasars GRS 1915+105, Circinus X-1, and V4641 Sgr using contemporaneous H.E.S.S. and RXTE observations
- ABDALLAH, H.
- AUBERT, P.
- CHEVALIER, Jérome
- FIASSON, A.
- KRAYZEL, F.
- LAMANNA, G.
- LEES, J.P.
- MAURIN, G.
- ROSIER-LEES, S.
- SANCHEZ, D.A.
- VUILLAUME, T.
- BOLMONT, J.
- CERRUTI, M.
- CHALME-CALVET, R.
- CHÉTIEN, M.
- JACHOLKOWSKA, A.
- KERSZBERG, D.
- KIEFFER, Michel
- LENAIN, J.-P.
- PERENNES, C.
- SETTIMO, M.
- TAVERNET, J.-P.
- VINCENT, P.
- BREGEON, J.
- CHAVES, R.C.G.
- DEVIN, J.
- GALLANT, Y.A.
- MARCOWITH, A.
- PADOVANI, M.
- RENAUD, M.
- VASILEIADIS, G.
- CARR, J.
- ERNENWEIN, J.-P.
- NIEMIEC, J.
- TRICHARD, C.
- BRUN, F.
- CONDON, B.
- GRONDIN, M.-H.
- LAFFON, H.
- LEMOINE-GOUMARD, M.
- DEGRANGE, B.
- FEGAN, S.
- FONTAINE, G.
- GIEBELS, B.
- HOLLER, M.
- MARIAUD, C.
- NAUROIS, M. De
- ZABOROV, D.
- ZEFI, F.
- DJANNATI-ATAÏ, A.
- GABICI, S.
- JOUVIN, L.
- KHÉLIFI, B.
- LEMIÈRE, A.
- PITA, S.
- PUNCH, M.
- TAVERNIER, T.
- TERRIER, R.
- ARRIETA, M.
- BOISSON, Catherine
- HERVET, Olivier
- LEFAUCHEUR, Julien
- RULTEN, Cameron
- SOL, Hélène
- ZECH, Andreas
DOIAbstract
Microquasars are potential γ-ray emitters. Indications of transient episodes of γ-ray emission were recently reported in at least two systems: Cyg X-1 and Cyg X-3. The identification of additional γ-ray-emitting microquasars is required to better understand how γ-ray emission can be produced in these systems. Theoretical models have predicted very high-energy (VHE) γ-ray emission from microquasars during periods of transient outburst. Observations reported herein were undertaken with the objective of observing a broadband flaring event in the γ-ray and X-ray bands. Contemporaneous observations of three microquasars, GRS 1915+105, Circinus X-1, and V4641 Sgr, were obtained using the High Energy Spectroscopic System (H.E.S.S.) telescope array...
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