TOROS Optical follow-up of the Advanced LIGO–VIRGO O2 second observational campaign

ARTOLA, RODOLFO; BEROIZ, MARTIN; CABRAL, JUAN; CAMUCCIO, RICHARD; CASTILLO, MOISES; CHAVUSHYAN, VAHRAM; COLAZO, CARLOS; LARENAS, HECTOR CUEVAS; DEPOY, DARREN L; DÍAZ, MARIO C; DOMÍNGUEZ, MARIANO; DULTZIN, DEBORAH; FERNÁNDEZ, DANIELA; FERREYRA, ANTONIO C; FONROUGE, ALDO; FRANCO, JOSÉ; GRAÑA, DARÍO; GIRARDINI, CARLA; GUROVICH, SEBASTIÁN; KANAAN, ANTONIO; LAMBAS, DIEGO G; LARES, MARCELO; HINOJOSA, ALEJANDRO F; HINOJOSA, ANDREA; HINOJOSA, AMERICO F; LÓPEZ-CRUZ, OMAR; MACRI, LUCAS M; MARSHALL, JENNIFER L; MELIA, RAUL; MENDOZA, WENDY; NILO CASTELLÓN, JOSÉ L; PADILLA, NELSON; PEREZ, VICTOR; PEÑUELA, TANIA; RATTRAY, WAHLTYN; RENZI, VÍCTOR; RÍOS-LÓPEZ, EMMANUEL; RIVERA, AMELIA RAMÍREZ; RIBEIRO, TIAGO; RODRIGUEZ, HORACIO; SÁNCHEZ, BRUNO; SCHNEITER, MATÍAS; SCHOENELL, WILLIAM; STARCK, MANUEL; VRECH, RUBÉN; QUIÑONES, CECILIA; TAPIA, LUIS; TORNATORE, MARINA; TORRES-FLORES, SERGIO; VILCHIS, ERVIN; ZADRO?NY, ADAM

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY

WILEY-BLACKWELL PUBLISHING, INC

Año: 2020

0035-8711

We present the methods and results of the optical follow-up, conducted by the TOROS collaboration, of gravitational wave events detected during the Advanced LIGO-Virgo second observing run (Nov 2016 ? Aug 2017). Given the limited field of view (∼100′) of our observational instrumentation, we targeted galaxies within the area of high localization probability that were observable from our sites. We analyzed the observations using difference imaging, followed by a Random Forest algorithm to discriminate between real and spurious transients. Our observations were conducted using telescopes at Estación Astrofísica de Bosque Alegre, Cerro Tololo Inter-American Observatory, the Dr. Cristina V. Torres Memorial Astronomical Observatory and an observing station in Salta, Argentina.