Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Andrei P. Igoshev"'
Autor:
Ilya Mandel, Andrei P. Igoshev
Publikováno v:
The Astrophysical Journal, Vol 944, Iss 2, p 153 (2023)
The speeds of young isolated pulsars are generally inferred from their observed 2D velocities on the plane of the sky under the assumption that the unobserved radial velocity is not special, i.e., that the measured 2D velocity is an isotropic project
Externí odkaz:
https://doaj.org/article/9b2516130fe542f1aa3a0e8ab652b74f
Publikováno v:
Universe, Vol 7, Iss 9, p 351 (2021)
Neutron stars are natural physical laboratories allowing us to study a plethora of phenomena in extreme conditions. In particular, these compact objects can have very strong magnetic fields with non-trivial origin and evolution. In many respects, its
Externí odkaz:
https://doaj.org/article/9c3cb00244f34f18ae6558be973d4fee
Publikováno v:
Monthly Notices of the Royal Astronomical Society, 508(3), 3345-3364. Oxford University Press
Monthly Notices of the Royal Astronomical Society, 508, 3345-3364
Monthly Notices of the Royal Astronomical Society, 508, 3, pp. 3345-3364
Monthly Notices of the Royal Astronomical Society, 508, 3345-3364
Monthly Notices of the Royal Astronomical Society, 508, 3, pp. 3345-3364
Supernova explosion and the associated neutron star natal kicks are important events on a pathway of a binary to become a gravitational wave source, an X-ray binary or a millisecond radio pulsar. Weak natal kicks often lead to binary survival, while
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::caf8ebc0cd3bef8a1290dea1b88fc402
https://doi.org/10.1093/mnras/stab2734
https://doi.org/10.1093/mnras/stab2734
Testing the fossil field hypothesis: could strongly magnetized OB stars produce all known magnetars?
Publikováno v:
Monthly Notices of the Royal Astronomical Society
Stars of spectral types O and B produce neutron stars (NSs) after supernova explosions. Most of NSs are strongly magnetised including normal radio pulsars with $B \propto 10^{12}$ G and magnetars with $B\propto 10^{14}$ G. A fraction of 7-12 per cent
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::135e980d45ed01cc3f8775fa7564cd77
https://doi.org/10.1093/mnras/stab1175
https://doi.org/10.1093/mnras/stab1175
Autor:
Andrei P Igoshev, Anastasia Frantsuzova, Konstantinos N Gourgouliatos, Savina Tsichli, Lydia Konstantinou, Sergei B Popov
Initial distributions of pulsar periods and magnetic fields are essential components of multiple modern astrophysical models. Not enough work has been done to properly constrain these distributions using direct measurements. Here we aim to fill this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afff9c0db74390fec1d973c7af2d79c1
http://arxiv.org/abs/2205.06823
http://arxiv.org/abs/2205.06823
Publikováno v:
Nature Astronomy. 5:145-149
Magnetars are neutron stars (NSs) with extreme magnetic fields1 of strength 5 × 1013−1015 G. These fields are generated by dynamo action during the proto-NS phase, and are expected to have both poloidal and toroidal components2–6, although the e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b99aef452ac5823438354697a6643821
https://doi.org/10.1038/s41550-020-01220-z
https://doi.org/10.1038/s41550-020-01220-z
Central compact objects are young neutron stars emitting thermal X-rays with bolometric luminosities $L_X$ in the range $10^{32}$-$10^{34}$ erg/s. Gourgouliatos, Hollerbach and Igoshev recently suggested that peculiar emission properties of central c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5652f8f28b74237562a8551b1c81bc78
http://arxiv.org/abs/2101.08292
http://arxiv.org/abs/2101.08292
Autor:
Sergei Popov, Andrei P. Igoshev
The role of magnetic field decay in normal radio pulsars is still debated. In this paper we present results which demonstrate that an episode of magnetic field decay in hot young neutron stars can explain anomalous values of braking indices recently
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::414225766172a3723eed519be9b4d7b4
http://arxiv.org/abs/2011.05778
http://arxiv.org/abs/2011.05778
Autor:
Sergei Popov, Andrei P. Igoshev
Recently, Parthsarathy et al. analysed long-term timing observations of 85 young radio pulsars. They found that 11 objects have braking indices ranging $\sim 10-100$, far from the classical value $n=3$. They also noted a mild correlation between meas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f69aa1509125e1cc873f3609a7ccbc40
https://eprints.whiterose.ac.uk/166363/1/braking_indices-9.pdf
https://eprints.whiterose.ac.uk/166363/1/braking_indices-9.pdf
Central Compact Objects (CCOs) are X-ray sources with luminosity ranging between $10^{32}$-$10^{34}$ erg~s$^{-1}$, located at the centres of supernova remnants. Some of them have been confirmed to be neutron stars. Timing observations have allowed th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b03299404a0af10ed3e97d1fae86334
http://arxiv.org/abs/2005.02410
http://arxiv.org/abs/2005.02410