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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

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

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Autor(es):
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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]
Número total de Autores: 55
Afiliação do(s) autor(es):
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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
Número total de Afiliações: 21
Tipo de documento: Artigo Científico
Fonte: Astrophysical Journal Letters; v. 848, n. 2 OCT 20 2017.
Citações Web of Science: 21
Resumo

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)

Processo FAPESP: 09/54202-8 - EMU: aquisição de um telescópio robótico para a comunidade astronômica brasileira
Beneficiário:Claudia Lucia Mendes de Oliveira
Linha de fomento: Auxílio à Pesquisa - Programa Equipamentos Multiusuários