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Discovery of thermal X-ray emission in the Supernova Remnant G337.8-0.1 (Kes 41)
J. A. Combi, J. F. Albacete-Colombo, J. Marti
We report here on the first detection at X-ray wavelengths of the Supernova Remnant (SNR) G337.8-0.1, carried out with the XMM-Newton Observatory. Using the X-ray observations, we…
Radio detections towards unidentified variable EGRET sources
J. M. Paredes, J. Marti, C. H. Ishwara-Chandra +6
Context. A considerable fraction of the gamma-ray sources discovered with the Energetic Gamma-Ray Experiment Telescope (EGRET) remain unidentified. The EGRET sources that have been…
Faint arc-minute extended radio emission around Cygnus X-3
J. R. Sanchez-Sutil, J. Marti, J. A. Combi +4
Aims. We revisit the vicinity of the microquasar Cygnus X-3 at radio wavelengths. We aim to improve our previous search for possible associated extended radio features/hot spots in…
A new search strategy for microquasar candidates using NVSS/2MASS and XMM-Newton data
J. A. Combi, J. F. Albacete-Colombo, J. Marti
Microquasars are ideal natural laboratories for understanding accretion/ejection processes, studying the physics of relativistic jets, and testing gravitational phenomena. Neverthe…
Extreme photo-polarimetric behaviour of the blazar AO 0235+164
Sergio A. Cellone, Gustavo E. Romero, Jorge A. Combi +1
We present optical photo-polarimetric observations with high temporal resolution of the blazar AO 0235+164. Our data, the first to test the photo-polarimetric behaviour of this obj…
New evidence on the origin of the microquasar GRO J1655-40
J. A. Combi, L. Bronfman, I. F. Mirabel
Aims. Motivated by the new determination of the distance to the microquasar GRO J1655-40 by Foellmi et al. (2006), we conduct a detailed study of the distribution of the atomic and…