학술논문
The first six months of the Advanced LIGO's and Advanced Virgo's third observing run with GRANDMA
Document Type
Working Paper
Author
Antier, S.; Agayeva, S.; Aivazyan, V.; Alishov, S.; Arbouch, E.; Baransky, A.; Barynova, K.; Bai, J. M.; Basa, S.; Beradze, S.; Bertin, E.; Berthier, J.; Blazek, M.; Boer, M.; Burkhonov, O.; Burrell, A.; Cailleau, A.; Chabert, B.; Chen, J. C.; Christensen, N.; Coleiro, A.; Cordier, B.; Corre, D.; Coughlin, M. W.; Coward, D.; Crisp, H.; Delattre, C.; Dietrich, T.; Ducoin, J. -G.; Duverne, P. -A.; Marchal-Duva, G.; Gendre, B.; Eymar, L.; Fock-Hang, P.; Han, X.; Hello, P.; Howell, E. J.; Inasaridze, R.; Ismailov, N.; Kann, D. A.; Kapanadze, G.; Klotz, A.; Kochiashvili, N.; Lachaud, C.; Leroy, N.; Van Su, A. Le; Lin, W. L.; Li, W. X.; Lognone, P.; Marron, R.; Mo, J.; Moore, J.; Natsvlishvili, R.; Noysena, K.; Perrigault, S.; Peyrot, A.; Samadov, D.; Sadibekova, T.; Simon, A.; Stachie, C.; Teng, J. P.; Thierry, P.; Thone, C. C.; Tillayev, Y.; Turpin, D.; Postigo, A. de Ugarte; Vachier, F.; Vardosanidze, M.; Vasylenko, V.; Vidadi, Z.; Wang, X. F.; Wang, C. J.; Wei, J.; Yan, S. Y.; Zhang, J. C.; Zhang, J. J.; Zhang, X. H.
Source
Subject
Language
Abstract
We present the Global Rapid Advanced Network Devoted to the Multi-messenger Addicts (GRANDMA). The network consists of 21 telescopes with both photometric and spectroscopic facilities. They are connected together thanks to a dedicated infrastructure. The network aims at coordinating the observations of large sky position estimates of transient events to enhance their follow-up and reduce the delay between the initial detection and the optical confirmation. The GRANDMA program mainly focuses on follow-up of gravitational-wave alerts to find and characterise the electromagnetic counterpart during the third observational campaign of the Advanced LIGO and Advanced Virgo detectors. But it allows for any follow-up of transient alerts involving neutrinos or gamma-ray bursts, even with poor spatial localisation. We present the different facilities, tools, and methods we developed for this network, and show its efficiency using observations of LIGO/Virgo S190425z, a binary neutron star merger candidate. We furthermore report on all GRANDMA follow-up observations performed during the first six months of the LIGO-Virgo observational campaign, and we derive constraints on the kilonova properties assuming that the events' locations were imaged by our telescopes.
Comment: 26 pages, 4 figures
Comment: 26 pages, 4 figures