{"paper":{"title":"A study in scarlet -- II. Spectroscopic properties of a sample of Intermediate Luminosity Red Transients","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"A. Fiore, A. Gangopadhyay, A. Pastorello, A. Rau, A. Reguitti, C. Barbarino, C. Inserra, C. McCully, C. Pellegrino, D. A. Howell, D. Eappachen, D. E. Reichart, D. Hiramatsu, D. J. Sand, D. R. Young, E. Callis, E. Cappellaro, E. Kankare, E. Karamehmetoglu, E. Mason, E. Padilla Gonzalez, E. Paraskeva, E. Y. Hsiao, F. Bufano, G. Leloudas, G. Pignata, G. Valerin, H. Kuncarayakti, I. Salmaso, J. E. Andrews, J. Jencson, J. P. Anderson, J. Sollerman, K. Misra, L. Galbany, L. Izzo, L. Tartaglia, L. Tomasella, M. Della Valle, M. D. Fulton, M. D. Stritzinger, M. Fraser, M. Gromadzki, M. Limongi, M. Lundquist, M. Nicholl, M. Shahbandeh, M. Singh, M. Turatto, N. Elias-Rosa, P. A. Mazzali, P. Lundqvist, P. Ochner, R. C. Amaro, R. Dastidar, R. Kotak, R. Roy, S. Benetti, S. Brennan, S. J. Prentice, S. J. Smartt, S. Valenti, S. Wyatt, T. E. M\\\"uller-Bravo, T. Heikkil\\\"a, T. M. Reynolds, T.-W. Chen, Y.-Z. Cai","submitted_at":"2024-07-31T16:42:14Z","abstract_excerpt":"We investigate the spectroscopic characteristics of Intermediate Luminosity Red Transients (ILRTs), a class of elusive objects with peak luminosity between that of classical novae and standard supernovae. We present the extensive optical and near-infrared (NIR) spectroscopic monitoring of four ILRTs, namely NGC 300 2008OT-1, AT 2019abn, AT 2019ahd and AT 2019udc. First we focus on the evolution of the most prominent spectral features observed in the low resolution spectra, then we discuss more in detail the high resolution spectrum collected for NGC 300 2008OT-1 with the Very Large Telescope e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2407.21733","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2407.21733/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}