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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Observations of the First Electromagnetic Counterpart to a Gravitational-wave Source by the TOROS Collaboration

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Author(s):
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Diaz, M. C. [1, 2] ; Macri, L. M. [3] ; Garcia Lambas, D. [4] ; Mendes de Oliveira, C. [5] ; Nilo Castellon, J. L. [6, 7] ; Ribeiro, T. [8] ; Sanchez, B. [4] ; Schoenell, W. [9, 5] ; Abramo, L. R. [10] ; Akras, S. [11] ; Alcaniz, J. S. [11] ; Artola, R. [4] ; Beroiz, M. [1, 2] ; Bonoli, S. [12] ; Cabral, J. [4] ; Camuccio, R. [1, 2] ; Castillo, M. [1, 2] ; Chavushyan, V. [13] ; Coelho, P. [5] ; Colazo, C. [4] ; Costa-Duarte, M. V. [5] ; Cuevas Larenas, H. [6] ; Depoy, D. L. [3] ; Dominguez Romero, M. [4] ; Dultzin, D. [14] ; Fernandez, D. [15] ; Garcia, J. [1, 2] ; Girardini, C. [4] ; Goncalves, D. R. [16] ; Goncalves, T. S. [16] ; Gurovich, S. [4] ; Jimenez-Teja, Y. [11] ; Kanaan, A. [9] ; Lares, M. [4] ; Lopes de Oliveira, R. [8, 17, 18] ; Lopez-Cruz, O. [13] ; Marshall, J. L. [3] ; Melia, R. [4] ; Molino, A. [5] ; Padilla, N. [15] ; Penuela, T. [1, 2, 19] ; Placco, V. M. [20, 21] ; Quinones, C. [4] ; Ramirez Rivera, A. [6] ; Renzi, V. [4] ; Riguccini, L. [16] ; Rios-Lopez, E. [13] ; Rodriguez, H. [4] ; Sampedro, L. [5] ; Schneiter, M. [4] ; Sodre, L. [5] ; Starck, M. [4] ; Torres-Flores, S. [6] ; Tornatore, M. [4] ; Zadrozny, A. [1, 2]
Total Authors: 55
Affiliation:
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[1] Univ Texas Rio Grande Valley, Ctr Gravitat Wave Astron, Brownsville, TX - USA
[2] Univ Texas Rio Grande Valley, Dept Phys & Astron, Brownsville, TX - USA
[3] Texas A&M Univ, George P & Cynthia W Mitchell Inst Fundamental Ph, Dept Phys & Astron, College Stn, TX - USA
[4] Univ Nacl Cordoba, IATE OAC, CONICET, Cordoba - Argentina
[5] U Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, Sao Paulo, SP - Brazil
[6] Univ La Serena, Dept Fis & Astron, La Serena - Chile
[7] Univ La Serena, Inst Invest Multidisciplinario Ciencia & Tecnol, La Serena - Chile
[8] Univ Fed Sergipe, Dept Fis, Sao Cristovao, SE - Brazil
[9] Univ Fed Santa Catarina, Dept Fis, Florianopolis, SC - Brazil
[10] Univ Sao Paulo, Inst Fis, Dept Fis Matemat, Sao Paulo, SP - Brazil
[11] Observ Nacl, Dept Astron, Rio De Janeiro, RJ - Brazil
[12] Ctr Estudios Fis Cosmos Aragon, Teruel - Spain
[13] Inst Nacl Astrofis Opt & Electr, Puebla - Mexico
[14] Univ Nacl Autonoma Mexico, Inst Astron, Mexico City, DF - Mexico
[15] Pontificia Univ Catolica Chile, Inst Astrofis, Santiago - Chile
[16] Univ Fed Rio de Janeiro, Observ Valongo, Rio de Janeiro, RJ - Brazil
[17] NASA, Goddard Space Flight Ctr, Xray Astrophys Lab, Greenbelt, MD - USA
[18] NASA, Goddard Space Flight Ctr, CRESST, Greenbelt, MD - USA
[19] Ludwig Maximilian Univ Munich, Fac Phys, Munich - Germany
[20] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 - USA
[21] Ctr Evolut Elements, Joint Inst Nucl Astrophys, E Lansing, MI - USA
Total Affiliations: 21
Document type: Journal article
Source: Astrophysical Journal Letters; v. 848, n. 2 OCT 20 2017.
Web of Science Citations: 25
Abstract

We present the results of prompt optical follow-up of the electromagnetic counterpart of the gravitational-wave event GW170817 by the Transient Optical Robotic Observatory of the South Collaboration. We detected highly significant dimming in the light curves of the counterpart (Delta g= 0.17 +/- 0.03 mag, Delta r = 0.14 +/- 0.02 mag, Delta i = 0.10 +/- 0.03 mag) over the course of only 80 minutes of observations obtained similar to 35 hr after the trigger with the T80- South telescope. A second epoch of observations, obtained similar to 59 hr after the event with the EABA 1.5 m telescope, confirms the fast fading nature of the transient. The observed colors of the counterpart suggest that this event was a ``blue kilonova{''} relatively free of lanthanides. (AU)

FAPESP's process: 09/54202-8 - Acquisition of a robotic telescope for the Brazilian astronomical community
Grantee:Claudia Lucia Mendes de Oliveira
Support Opportunities: Multi-user Equipment Program