TY - CHAP AU - Bühler, Rolf AU - Dravins, D. AU - Egberts, K. AU - Hinton, J. A. AU - Parsons, R. D. TI - Capabilities beyond Gamma Rays CY - Hackensack PB - WORLD SCIENTIFIC M1 - PUBDB-2020-00090 SN - 9789813270084 T2 - 1712966 SP - 291-299 PY - 2019 N1 - Includes bibliographical references AB - Although designed as a gamma-ray observatory, CTA is a powerful tool for a range of other astrophysics and astroparticle physics. For example, CTA can make precision studies of charged cosmic rays in the energy range from ∼100 GeV up to PeV energies, and it can be used as an instrument for optical intensity interferometry, to provide unprecedented angular resolution in the optical for bright sources. Below, we briefly summarise these possibilities. Most of the topics we discuss can be explored in parallel with gamma-ray data-taking, without interfering with the major science operations of CTA. Those studies (such as intensity interferometry) which require specific observations can likely make use of bright moonlight time, thus enhancing the CTA science return without negative impact on the key science goals. KW - Cherenkov Telescope Array (INSPIRE) KW - gamma ray (INSPIRE) KW - interferometer (INSPIRE) KW - optical (INSPIRE) KW - angular resolution (INSPIRE) KW - cosmic radiation (INSPIRE) KW - lunar (INSPIRE) KW - observatory (INSPIRE) LB - PUB:(DE-HGF)7 DO - DOI:10.1142/9789813270091_0014 UR - https://bib-pubdb1.desy.de/record/434497 ER -