{"paper":{"title":"A year-long AGILE observation of Cygnus X-1 in hard spectral state","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"A. Argan, A. Bulgarelli, A. Chen, A. Giuliani, A. Morselli, A. Pellizzoni, A. Rappoldi, A. Trois, A. Zambra, B. Preger, C. Labanti, C. Pittori, E. Costa, E. Del Monte, E. Moretti, E. Striani, E. Vallazza, F. Boffelli, F. D'Ammando, F. Fuschino, F. Gianotti, F. Lazzarotto, F. Longo, F. Perotti, F. Verrecchia, G. Barbiellini, G. Di Cocco, G. Piano, G. Pucella, I. Donnarumma, I. Lapshov, L. A. Antonelli, L. Pacciani, L. Salotti, M. Feroci, M. Galli, M. Marisaldi, M. Pilia, M. Prest, M. Rapisarda, M. Tavani, M. Trifoglio, P. Caraveo, P. Giommi, P. Lipari, P. Picozza, P. Santolamazza, P. Soffitta, P.W. Cattaneo, S. Cutini, S. Mereghetti, S. Sabatini, S. Vercellone, V. Vittorini, Y. Evangelista","submitted_at":"2010-04-06T13:32:59Z","abstract_excerpt":"We present the observation of Cyg X-1 in hard spectral state performed during the AGILE Science Verification Phase and Observing Cycle 1 in hard X-rays (with SuperAGILE) and gamma rays (with the GRID) and lasting for about 160 days with a live time of $\\sim 6$ Ms.\n We investigate the variability of Cyg X-1 in hard X-rays at different timescales, from $\\sim 300$ s up to one day, and we apply different tools of timing analysis, such as the autocorrelation function, the first order structure function and the Lomb-Scargle periodogram, to our data (from SuperAGILE) and to the simultaneous data in s"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1004.0849","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}