High-energy and Very High-energy Constraints from Log-parabolic Spectral Models in Narrow-line Seyfert 1 Galaxies

Autor: Vercellone, Stefano, Foschini, Luigi, Romano, Patrizia, Böttcher, Markus, Boisson, Catherine, INAF, di Brera, Osservatorio Astronomico, Merate, I-23807, Italy, Research, Centre for Space, University, North-West, Potchefstroom, Africa, South, LUTH, de Paris, Observatoire, CNRS, Diderot, Universite Paris, Paris, PSL Research University, Janssen, 5 place Jules, Meudon, F-92195, France

Narrow-line Seyfert 1 galaxies (NLSy1s) are a well-established class of $\gamma$-ray sources, showing the presence of a jet like the more common flat-spectrum radio quasars. The evidence of $\gamma$-ray emission poses the issue of the location of the

Externí odkaz: http://arxiv.org/abs/2004.06549

Unusually high SO 2 emissions and plume height from Piton de la Fournaise volcano during the April 2020 eruption.

Autor: Hayer C; COMET, Department of Earth and Environmental Sciences, The University of Manchester, Manchester, M13 9PL UK., Burton M; COMET, Department of Earth and Environmental Sciences, The University of Manchester, Manchester, M13 9PL UK., Ferrazzini V; Institut de Physique du Globe de Paris, Université de Paris, CNRS, 75005 Paris, France.; Institut de Physique du Globe de Paris, Observatoire Volcanologique du Piton de La Fournaise, 97418 La Plaine Des Cafres, France., Esse B; COMET, Department of Earth and Environmental Sciences, The University of Manchester, Manchester, M13 9PL UK., Di Muro A; Institut de Physique du Globe de Paris, Université de Paris, CNRS, 75005 Paris, France.; Institut de Physique du Globe de Paris, Observatoire Volcanologique du Piton de La Fournaise, 97418 La Plaine Des Cafres, France.

Publikováno v: Bulletin of volcanology [Bull Volcanol] 2023; Vol. 85 (4), pp. 21. Date of Electronic Publication: 2023 Mar 08.