Year: 2017
Type: preprint
Abstract: There are several types of Galactic sources that can potentially accelerate charged particles up to GeV and TeV energies. We present here the results of our observations of the source class of gamma-ray binaries and the subclass of binary systems known as novae with the MAGIC telescopes. Up to now novae were only detected in the GeV range. This emission can be interpreted in terms of an inverse Compton process of electrons accelerated in a shock. In this case it is expected that protons in the same conditions can be accelerated to much higher energies. Consequently they may produce a second component in the gamma-ray spectrum at TeV energies. The focus here lies on the four sources: nova V339 Del, SS433, LS I +61 303 and V404 Cygni. The binary system LS I +61 303 was observed in a long-term monitoring campaign for 8 years. We show the newest results on our search for superorbital variability, also in context with contemporaneous optical observations. Furthermore, we present the observations of the only super-critical accretion system known in our galaxy: SS433. Finally, the results of the follow-up observations of the microquasar V404 Cygni during a series of outbursts in the X-ray band and the ones of the nova V339 Del will be discussed in these proceedings.
Source: arXiv (Cornell University)
Authors: Hadasch, Daniela, Bednarek, Wlodek, Blanch, Oscar, Cortina, Juan, Wilhelmi, Emma de Oña, Fernández-Barral, Alba, López-Coto, Rúben, López-Oramas, Alicia, Moretti, Elena, Munar-Adrover, Pere, Paredes, Josep Maria, Ribó, Marc, Torres, Diego F., Sitarek, Julian, Collaboration, the MAGIC, Casares, Jorge
Institutions: Institute for Cosmic Ray Research, The University of Tokyo, University of Łódź, Institute for High Energy Physics, Max Planck Institute for Nuclear Physics, Universidad de La Laguna, Instituto de Astrofísica de Canarias, Max Planck Institute for Physics, Universitat Autònoma de Barcelona, Universitat de Barcelona, Institució Catalana de Recerca i Estudis Avançats, Consejo Superior de Investigaciones Científicas
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: Deutsche Forschungsgemeinschaft, Ministry of Education, Culture, Sports, Science and Technology, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Bundesministerium für Bildung und Forschung, Max-Planck-Gesellschaft, Japan Society for the Promotion of Science, European Regional Development Fund
OpenAlex ID: W2738566567