English

INTEGRAL serendipitous observations of solar and terrestrial X-rays and gamma rays

High Energy Astrophysical Phenomena 2021-06-09 v1 Earth and Planetary Astrophysics Solar and Stellar Astrophysics Space Physics

Abstract

ESA's INTEGRAL space mission has achieved unique results for solar and terrestrial physics, although spacecraft operations nominally excluded the possibility to point at the Sun or the Earth. The Earth avoidance was, however, exceptionally relaxed for special occultation observations of the Cosmic X-ray Background (CXB), which on some occasions allowed the detection of strong X-ray auroral emission. In addition, the most intense solar flares can be bright enough to be detectable from outside the field of view of the main instruments. This article presents for the first time the auroral observations by INTEGRAL and reviews earlier studies of the most intense solar flares. We end by briefly summarising the studies of the Earth's radiation belts, which can be considered as another topic of serendipitous science with INTEGRAL.

Keywords

Cite

@article{arxiv.2104.06073,
  title  = {INTEGRAL serendipitous observations of solar and terrestrial X-rays and gamma rays},
  author = {Marc Türler and Vincent Tatischeff and Volker Beckmann and Eugene Churazov},
  journal= {arXiv preprint arXiv:2104.06073},
  year   = {2021}
}

Comments

10 pages, 8 figures, to be published in the "15 years of INTEGRAL" Volume of New Astronomy Reviews