Results 11 to 20 of about 39 (39)
The Role of XMM–Newton in the Investigation of Persistent BeXRBs
Astronomische Nachrichten, Volume 346, Issue 1, January 2025.ABSTRACT The persistent BeXRBs are a class of high‐mass X‐ray binaries (HMXRBs), which are characterized by persistent low X‐ray luminosities (LX~1034$$ {L}_{\mathrm{X}}\sim {10}^{34} $$ erg s −1$$ {}^{-1} $$) and wide (Porb>$$ {P}_{\mathrm{orb}}> $$ 30 days), almost circular orbits. In these sources the NS is slowly rotating (with Pspin$$ {P}_{\mathrm{
Nicola La Palombara +4 more
wiley +1 more source
Beyond Accretion Limits: The Rise of Pulsating Gems
Astronomische Nachrichten, Volume 346, Issue 1, January 2025.ABSTRACT The discovery of several ultraluminous X‐ray sources exhibiting fast and rapidly evolving X‐ray pulsations unequivocally associates these sources with accreting neutron stars orbiting relatively massive companion stars (> 8M ⊙$$ {}_{\odot } $$).
Gian Luca Israel +26 more
wiley +1 more source
Observations of Radio Magnetars with the Deep Space Network
Advances in Astronomy, Volume 2019, Issue 1, 2019., 2019 The Deep Space Network (DSN) is a worldwide array of radio telescopes which supports NASA’s interplanetary spacecraft missions. When the DSN antennas are not communicating with spacecraft, they provide a valuable resource for performing observations of radio magnetars, searches for new pulsars at the Galactic Center, and additional pulsar‐related ...
Aaron B. Pearlman +3 more
wiley +1 more source
INTEGRAL Observations of Magnetars
Astronomische Nachrichten, Volume 346, Issue 1, January 2025.ABSTRACT The INTEGRAL satellite has collected a large amount of data on magnetars in our Galaxy, spanning more than 20 years starting from 2003. The large data set obtained with the IBIS/ISGRI instrument at energies above 20 keV allows us to study both the properties and long‐term evolution of their persistent hard X‐ray emission and the population ...
Dominik Patryk Pacholski +3 more
wiley +1 more source
A Brief, Biased View of Neutron Star Cooling
Astronomische Nachrichten, Volume 346, Issue 1, January 2025.ABSTRACT This is a concise and non‐technical review of topics related to neutron star (NS) cooling, for both young NSs and NSs in low‐mass x‐ray binaries. Neutrino emission from the NS core drives cooling rates, via different processes including Urca processes and pair breaking and formation at the neutron superfluid critical temperature.
Craig Heinke
wiley +1 more source
Astronomische Nachrichten, Volume 345, Issue 4, May 2024.Abstract The magnetic field in the O9.7 V star HD 54879 has been monitored for almost a decade. Spectropolarimetric observations reveal a rather strong mean longitudinal magnetic field that varies with a period of about 7.41 years. Observations in the Hα$$ \alpha $$ line show a variation with the same period, while the Hβ$$ \beta $$ line shows only ...
Manfred Küker +4 more
wiley +1 more source
Heavy Elements and Electromagnetic Transients from Neutron Star Mergers
Annalen der Physik, Volume 536, Issue 2, February 2024.Astro‐(physics) has made major leaps forward through the combined information provided by both gravitational waves and electromagnetic emission from the first detected neutron star merger event. This review provides an up‐to‐date overview of today's understanding of neutron star mergers and their electromagnetic emission and it discusses possible ...
Stephan Rosswog, Oleg Korobkin
wiley +1 more source
Role of Time‐Varying Magnetic Field on QGP Equation of State
Advances in High Energy Physics, Volume 2024, Issue 1, 2024.The phase diagram of quantum chromodynamics (QCD) and its associated thermodynamic properties of quark‐gluon plasma (QGP) are studied in the presence of time‐dependent magnetic field. The study plays a pivotal role in the field of cosmology, astrophysics, and heavy‐ion collisions. In order to explore the structure of quark‐gluon plasma to deal with the
Yogesh Kumar +6 more
wiley +1 more source
Analytical Methods for High Energy Physics
, 2019 Advances in High Energy Physics, Volume 2019, Issue 1, 2019.
Saber Zarrinkamar +2 more
wiley +1 more source
Some of the next articles are maybe not open access.
Rotating vector model for magnetars
Monthly Notices of the Royal Astronomical Society, 2021H Tong, H G Wang, P F Wang
exaly