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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.)

Does PSR J1417-4402 system behave as a `redback'?

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Autor(es):
De Vito, M. A. [1, 2, 3] ; Horvath, J. E. [4] ; Benvenuto, O. G. [5, 1, 2]
Número total de Autores: 3
Afiliação do(s) autor(es):
[1] UNLP, Fac Ciencias Astron & Geofis, Paseo Bosque S-N, B1900FWA, La Plata, Buenos Aires - Argentina
[2] UNLP, CONICET, CCT, IALP, Paseo Bosque S-N, B1900FWA, La Plata, Buenos Aires - Argentina
[3] Consejo Nacl Invest Cient & Tecn, Consejo Nacl Invest Cient & Tecn, Carrera Investigador Cient, Buenos Aires, DF - Argentina
[4] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer, R do Matao 1226, BR-05508090 Sao Paulo, SP - Brazil
[5] Comis Invest Cient Prov Buenos Aires CIC, Buenos Aires, DF - Argentina
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: Monthly Notices of the Royal Astronomical Society; v. 483, n. 4, p. 4495-4500, MAR 2019.
Citações Web of Science: 0
Resumo

We study the present evolutionary status of the binary system containing the 2.66 ms pulsar PSR J1417-4402 in a 5.4 d orbit. This is the pulsar in the original source 3FGL J1417.5-4402, that has undergone a transition from X-ray state to a pulsar state, just like some redbacks did. The system has many characteristics similar to redback pulsars family, but is on a much wider orbit. We show that close binary evolution including irradiation feedback driven by the luminosity due to accretion on to the neutron star component of the pair, and evaporation due to pulsar emission, is able to account for the masses of the components and the photometric data of the donor star. The tracks leading to the present PSR J1417-4402 are degenerate within a range of parameters, suggesting that the same physics invoked to explain the redback/black widows groups leads to the formation of much wider orbit systems, outside the redback region limits. (AU)

Processo FAPESP: 13/26258-4 - Matéria superdensa no universo
Beneficiário:Manuel Máximo Bastos Malheiro de Oliveira
Linha de fomento: Auxílio à Pesquisa - Temático