Evolutionary paths of binaries with a neutron star - I. The case of SAX J1808.4 - 3658

Tiziana Di Salvo, Riggio, Maselli, Sanna, Tailo, Burderi, D'Antona, Ventura, Papitto

Risultato della ricerca: Article

4 Citazioni (Scopus)

Abstract

The evolutionary status of the low-mass X-ray binary SAX J1808.4 - 3658 is simulated by following the binary evolution of its possible progenitor system through mass transfer, starting at a period of ~6.6 h. The evolution includes angular momentum losses via magnetic braking and gravitational radiation. It also takes into account the effects of illumination of the donor by both the X-ray emission and the spin down luminosity of the pulsar. The system goes through stages of mass transfer and stages during which it is detached, where only the rotationally powered pulsar irradiates the donor. We show that the pulsar irradiation is a necessary ingredient to reach SAX J1808.4 - 3658 orbital period when the donor mass is reduced to 0.04-0.06M⊙. We also show that the models reproduce important properties of the system, including the orbital period derivative, which is shown to be directly linked to the evolution through mass transfer cycles. Moreover, we find that the effects of the irradiation on the internal structure of the donor are non-negligible, causing the companion star to be noncompletely convective at the values of mass observed for the system and significantly altering its long term evolution, as the magnetic braking remains active along the whole evolution.
Lingua originaleEnglish
pagine (da-a)817-828
Numero di pagine12
RivistaMonthly Notices of the Royal Astronomical Society
Volume479
Stato di pubblicazionePublished - 2018

Fingerprint

neutron stars
pulsars
mass transfer
braking
irradiation
orbitals
companion stars
ingredients
angular momentum
gravitational waves
x rays
illumination
luminosity
cycles
radiation
effect

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cita questo

Evolutionary paths of binaries with a neutron star - I. The case of SAX J1808.4 - 3658. / Di Salvo, Tiziana; Riggio; Maselli; Sanna; Tailo; Burderi; D'Antona; Ventura; Papitto.

In: Monthly Notices of the Royal Astronomical Society, Vol. 479, 2018, pag. 817-828.

Risultato della ricerca: Article

Di Salvo, T, Riggio, Maselli, Sanna, Tailo, Burderi, D'Antona, Ventura & Papitto 2018, 'Evolutionary paths of binaries with a neutron star - I. The case of SAX J1808.4 - 3658', Monthly Notices of the Royal Astronomical Society, vol. 479, pagg. 817-828.
Di Salvo, Tiziana ; Riggio ; Maselli ; Sanna ; Tailo ; Burderi ; D'Antona ; Ventura ; Papitto. / Evolutionary paths of binaries with a neutron star - I. The case of SAX J1808.4 - 3658. In: Monthly Notices of the Royal Astronomical Society. 2018 ; Vol. 479. pagg. 817-828.
@article{ae4433dcb5cf46419fd6bcb065164974,
title = "Evolutionary paths of binaries with a neutron star - I. The case of SAX J1808.4 - 3658",
abstract = "The evolutionary status of the low-mass X-ray binary SAX J1808.4 - 3658 is simulated by following the binary evolution of its possible progenitor system through mass transfer, starting at a period of ~6.6 h. The evolution includes angular momentum losses via magnetic braking and gravitational radiation. It also takes into account the effects of illumination of the donor by both the X-ray emission and the spin down luminosity of the pulsar. The system goes through stages of mass transfer and stages during which it is detached, where only the rotationally powered pulsar irradiates the donor. We show that the pulsar irradiation is a necessary ingredient to reach SAX J1808.4 - 3658 orbital period when the donor mass is reduced to 0.04-0.06M⊙. We also show that the models reproduce important properties of the system, including the orbital period derivative, which is shown to be directly linked to the evolution through mass transfer cycles. Moreover, we find that the effects of the irradiation on the internal structure of the donor are non-negligible, causing the companion star to be noncompletely convective at the values of mass observed for the system and significantly altering its long term evolution, as the magnetic braking remains active along the whole evolution.",
author = "{Di Salvo}, Tiziana and Riggio and Maselli and Sanna and Tailo and Burderi and D'Antona and Ventura and Papitto",
year = "2018",
language = "English",
volume = "479",
pages = "817--828",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",

}

TY - JOUR

T1 - Evolutionary paths of binaries with a neutron star - I. The case of SAX J1808.4 - 3658

AU - Di Salvo, Tiziana

AU - Riggio, null

AU - Maselli, null

AU - Sanna, null

AU - Tailo, null

AU - Burderi, null

AU - D'Antona, null

AU - Ventura, null

AU - Papitto, null

PY - 2018

Y1 - 2018

N2 - The evolutionary status of the low-mass X-ray binary SAX J1808.4 - 3658 is simulated by following the binary evolution of its possible progenitor system through mass transfer, starting at a period of ~6.6 h. The evolution includes angular momentum losses via magnetic braking and gravitational radiation. It also takes into account the effects of illumination of the donor by both the X-ray emission and the spin down luminosity of the pulsar. The system goes through stages of mass transfer and stages during which it is detached, where only the rotationally powered pulsar irradiates the donor. We show that the pulsar irradiation is a necessary ingredient to reach SAX J1808.4 - 3658 orbital period when the donor mass is reduced to 0.04-0.06M⊙. We also show that the models reproduce important properties of the system, including the orbital period derivative, which is shown to be directly linked to the evolution through mass transfer cycles. Moreover, we find that the effects of the irradiation on the internal structure of the donor are non-negligible, causing the companion star to be noncompletely convective at the values of mass observed for the system and significantly altering its long term evolution, as the magnetic braking remains active along the whole evolution.

AB - The evolutionary status of the low-mass X-ray binary SAX J1808.4 - 3658 is simulated by following the binary evolution of its possible progenitor system through mass transfer, starting at a period of ~6.6 h. The evolution includes angular momentum losses via magnetic braking and gravitational radiation. It also takes into account the effects of illumination of the donor by both the X-ray emission and the spin down luminosity of the pulsar. The system goes through stages of mass transfer and stages during which it is detached, where only the rotationally powered pulsar irradiates the donor. We show that the pulsar irradiation is a necessary ingredient to reach SAX J1808.4 - 3658 orbital period when the donor mass is reduced to 0.04-0.06M⊙. We also show that the models reproduce important properties of the system, including the orbital period derivative, which is shown to be directly linked to the evolution through mass transfer cycles. Moreover, we find that the effects of the irradiation on the internal structure of the donor are non-negligible, causing the companion star to be noncompletely convective at the values of mass observed for the system and significantly altering its long term evolution, as the magnetic braking remains active along the whole evolution.

UR - http://hdl.handle.net/10447/338823

UR - https://academic.oup.com/mnras/issue

M3 - Article

VL - 479

SP - 817

EP - 828

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

ER -