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Journal article
Blazar Variability with the Vera C. Rubin Legacy Survey of Space and Time
The Astrophysical journal. Supplement series, v 258(1)
01 Jan 2022
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Abstract
With their emission mainly coming from a relativistic jet pointing toward us, blazars are fundamental sources for studying extragalactic jets and their central engines, consisting of supermassive black holes fed by accretion disks. They are also candidate sources of high-energy neutrinos and cosmic rays. Because of the jet orientation, the nonthermal blazar emission is Doppler beamed; its variability is unpredictable, and it occurs on timescales from less than 1 hr to years. Comprehension of the diverse mechanisms producing the flux and spectral changes requires well-sampled multiband light curves over long time periods. In particular, outbursts are the best test bench for shedding light on the underlying physics, especially when studied in a multiwavelength context. The Vera C. Rubin Legacy Survey of Space and Time (Rubin-LSST) will monitor the southern sky for 10 yr in six photometric bands, offering a formidable tool for studying blazar variability features in a statistical way. The alert system will allow us to trigger follow-up observations of outstanding events, especially at high (keV-to-GeV) and very high (TeV) energies. We here examine the simulated Rubin-LSST survey strategies with the aim of understanding which cadences are more suitable for blazar variability science. Our metrics include light curve and color sampling. We also investigate the problem of saturation, which will affect the brightest and many flaring sources, and will have a detrimental impact on follow-up observations.
Metrics
Details
- Title
- Blazar Variability with the Vera C. Rubin Legacy Survey of Space and Time
- Creators
- Claudia M. Raiteri - INAF Osservatorio Astrofis Torino, Via Osservatorio 20, I-10025 Pino Torinese, ItalyMaria Carnerero - INAF Osservatorio Astrofis Torino, Via Osservatorio 20, I-10025 Pino Torinese, ItalyBarbara Balmaverde - INAF Osservatorio Astrofis Torino, Via Osservatorio 20, I-10025 Pino Torinese, ItalyEric C. Bellm - Univ Washington, DIRAC Inst, Dept Astron, 3910 15th Ave NE, Seattle, WA 98195 USAWilliam Clarkson - Univ Michigan, Dearborn, MI 48128 USAFilippo D'Ammando - INAF Ist Radioastron, Via Gobetti 101, I-40129 Bologna, ItalyMaurizio Paolillo - Univ Napoli Federico II, I-180126 Naples, ItalyGordon T. Richards - Drexel UniversityMassimo Villata - INAF Osservatorio Astrofis Torino, Via Osservatorio 20, I-10025 Pino Torinese, ItalyPeter Yoachim - Univ Washington, Seattle, WA 98195 USAIlsang Yoon - Natl Radio Astron Observ, Charlottesville, VA USA
- Publication Details
- The Astrophysical journal. Supplement series, v 258(1)
- Publisher
- IOP Publishing Ltd
- Number of pages
- 13
- Grant note
- Vera C. Rubin Legacy Survey of Space and Time "Transients and Variable Stars" and "AGN" Science Collaborations Vera C. Rubin Observatory MAF team LSST Corporation 2021-2975 / Preparing for Astrophysics with LSST Program - Heising Simons Foundation
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000733004000001
- Scopus ID
- 2-s2.0-85123692232
- Other Identifier
- 991019169799304721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics