Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Haensel, Pawel"'
Publikováno v:
A&A 690, A301 (2024)
The accumulation of accreted matter onto the neutron star surface triggers exothermic reactions in the crust. The heat released as a result influences the luminosity exhibited by the X-ray transient. The most common approach to the kinetics of exothe
Externí odkaz:
http://arxiv.org/abs/2408.11999
It is currently unknown if neutron stars (NSs) are composed of nucleons only or are hybrid stars, i.e., in addition to nucleonic crusts and outer cores, they also possess quark cores. Quantum chromodynamics allows for such a possibility, but accurate
Externí odkaz:
http://arxiv.org/abs/2210.14048
Autor:
de Lima, Rafael C. R., Pereira, Jonas P., Coelho, Jaziel G., Nunes, Rafael C., Stecchini, Paulo E. F., Castro, Manuel, Gomes, Pierre, da Silva, Rodrigo R., Rodrigues, Claudia V., de Araujo, José C. N., Bejger, Michał, Haensel, Paweł, Zdunik, J. Leszek
3XMM J185246.6+003317 is a transient magnetar located in the vicinity of the supernova remnant Kes\,79. So far, observations have only set upper limits to its surface magnetic field and spindown, and there is no estimate for its mass and radius. Usin
Externí odkaz:
http://arxiv.org/abs/2210.06648
Autor:
Chamel, Nicolas, Fantina, Anthea Francesca, Suleiman, Lami, Zdunik, Julian-Leszek, Haensel, Pawel
Publikováno v:
J. Phys.: Conf. Ser. 2340 012029 (2022)
The role of electron captures by nuclei in the shallow heating of magnetars is further investigated using both nuclear measurements and the theoretical atomic mass table HFB-27. Starting from the composition of the outer crust in full equilibrium, we
Externí odkaz:
http://arxiv.org/abs/2210.02790
Publikováno v:
A&A 662, A63 (2022)
Neutron stars in low-mass binary systems are subject to accretion. The common assumption in studying the properties of the neutron star crust is the fully accreted crust approximation. However, observations of some X-ray transient sources indicate th
Externí odkaz:
http://arxiv.org/abs/2203.14735
The internal composition of neutron stars is still an open issue in astrophysics. Their innermost regions are impervious to light propagation and gravitational waves mostly carry global aspects of stars, meaning that only indirect inferences of their
Externí odkaz:
http://arxiv.org/abs/2201.01217
Autor:
de Lima, Rafael C.R., Pereira, Jonas P., Coelho, Jaziel G., Nunes, Rafael C., Stecchini, Paulo E., Castro, Manuel, Gomes, Pierre, da Silva, Rodrigo R., Rodrigues, Claudia V., de Araujo, José C.N., Bejger, Michał, Haensel, Paweł, Zdunik, J. Leszek
Publikováno v:
In Journal of High Energy Astrophysics June 2024 42:52-62
Publikováno v:
Journal: Phys. Rev. C, volume = 104, year = 2021, pages = 0158011
Measurements of neutron-star macrophysical properties thanks to multimessenger observations offer the possibility to constrain the properties of nuclear matter. Indeed cold and dense matter as found inside neutron stars, in particular in their core,
Externí odkaz:
http://arxiv.org/abs/2106.12845
Autor:
Chamel, Nicolas, Fantina, Anthea Francesca, Suleiman, Lami, Zdunik, Julian-Leszek, Haensel, Pawel
Publikováno v:
Universe 2021, 7(6), 193
The persistent thermal luminosity of magnetars and their outbursts suggest the existence of some internal heat sources located in their outer crust. The compression of matter accompanying the decay of the magnetic field may trigger exothermic electro
Externí odkaz:
http://arxiv.org/abs/2106.05040
Autor:
Pereira, Jonas P., Bejger, Michał, Tonetto, Lucas, Lugones, Germán, Haensel, Paweł, Zdunik, Julian Leszek, Sieniawska, Magdalena
The internal composition of neutron stars is currently largely unknown. Due to the possibility of phase transitions in quantum chromodynamics, stars could be hybrid and have quark cores. We investigate some imprints of elastic quark phases (only when
Externí odkaz:
http://arxiv.org/abs/2011.06361