Observations of VHE gamma-ray binaries with the MAGIC Telescopes

TL;DR

This paper reports MAGIC telescope observations of gamma-ray binary systems, focusing on variability and potential new sources, enhancing understanding of high-energy processes in such systems.

Contribution

It provides new observational data on LS I +61 303 and HD 215227, including variability analysis and potential identification of a new gamma-ray binary.

Findings

LS I +61 303 shows variability on multiple timescales.

MAGIC observations suggest HD 215227 as a new gamma-ray binary candidate.

Multi-wavelength studies help understand emission mechanisms.

Abstract

Several binary systems, composed of a star and a compact object, have been detected in the GeV-TeV range. Several systems have been observed but only a handful of sources have shown emission at those energies. Here, we present the observations conducted by MAGIC of different {\gamma}-ray binary systems. On one hand, we show the latest studies on the binary system LS I +61 303, which displays variability on different timescales. With the latest MAGIC observations, we will try to shed light on our understanding of this source, by presenting super-orbital and multi-wavelength studies. On the other hand, we show the observational results on the binary system HD 215227. This source has been proposed as a new {\gamma}-ray binary for being spatially coincident with the gamma-ray source AGL J2241+4454 detected by AGILE at E >100 GeV.