Results 51 to 60 of about 654,536 (207)

Single Millisecond Pulsars from Dynamical Interaction Processes in Dense Star Clusters

The Astrophysical Journal
Globular clusters (GCs) are particularly efficient at forming millisecond pulsars. Among these pulsars, about half lack a companion star, a significantly higher fraction than in the Galactic field.
Claire S. Ye, Kyle Kremer, Scott M. Ransom, Frederic A. Rasio   +3 more
doaj   +1 more source

Catalog of the Galactic Population of X-Ray Pulsars in High-mass X-Ray Binary Systems

The Astrophysical Journal Supplement Series, 2023
A catalog of the Galactic population of X-ray pulsars in high-mass X-ray binary (HMXB) systems is presented. It contains information about 82 confirmed sources: 18 persistent and 64 transient pulsars.
Vitaliy Kim, Ildana Izmailova, Yerlan Aimuratov   +2 more
doaj   +1 more source

Aharonov–Bohm Effect for Cooper Pairs in Kerr Spacetime: Gravitomagnetic Phase Shifts From Frame Dragging

Annalen der Physik, Volume 538, Issue 8, August 2026.
ABSTRACT The unification of quantum mechanics and general relativity remains a central problem in fundamental physics. Here, we study the gravitomagnetic Aharonov–Bohm (AB) effect for Cooper pairs in Kerr spacetime. Frame‐dragging by a rotating black hole (BH) generates an effective vector potential through the off‐diagonal metric term gtϕ$g_{t\phi }$,
Erdem Sucu, İzzet Sakallı
wiley   +1 more source

A Radio Pulsar/X-ray Binary Link [PDF]

Science, 2009
From X-ray Binary to Pulsar Pulsars with millisecond rotational periods are thought to originate from neutron stars in low-mass x-ray binaries that had their spin frequencies increased by long-lasting mass transfer from their companion stars. Using data from a radio pulsar survey,
Archibald, A.M., Stairs, I.H., Ransom, S.M., Kaspi, V.M., Kondratiev, V.I., Lorimer, D.R., McLaughlin, M.A., Boyles, J., Hessels, J.W.T., Lynch, R., van Leeuwen, J., Roberts, M.S.E., Jenet, F., Champion, D.J., Rosen, R., Barlow, B.N., Dunlap, B.H., Remillard, R.A.   +17 more
openaire   +4 more sources

Gravitational Radiation From Binary Systems With Time Varying Masses

Annalen der Physik, Volume 538, Issue 8, August 2026.
We extend the standard approach pioneered in the works by Peters and Mathews to include the mass loss processes of the binary components, by obtaining the variations due to gravitational radiation of the main physical parameters. As an application of our results we consider gravitational radiation emission in binary magnetar systems.
Teodora M. Matei, Cristian A. Croitoru, Tiberiu Harko   +2 more
wiley   +1 more source

A relativistic positioning system exploiting pulsating sources for navigation across the Solar System and beyond [PDF]

, 2011
We introduce an operational approach to the use of pulsating sources, located at spatial infinity, for defining a relativistic positioning and navigation system, based on the use of null four-vectors in a flatMinkowskian spacetime.
Capolongo, Emiliano, Tartaglia, Angelo, Ruggiero, Matteo Luca   +2 more
core  

Irradiation effect and binary radio pulsars with giant companions [PDF]

Context. Pulsars are neutron stars that rotate rapidly. Most of the pulsars in binary systems tend to spin faster than those in isolation. According to binary evolution theory, radio pulsars in binary systems can have various types of companion stars ...
Shunyi Lan, Lan, Shunyi, Xiangcun Meng, Meng, Xiangcun   +3 more
core   +1 more source

The Green Bank North Celestial Cap Survey. VIII. 21 New Pulsar Timing Solutions

The Astrophysical Journal, 2023
We present timing solutions for 21 pulsars discovered in 350 MHz surveys using the Green Bank Telescope (GBT). All were discovered in the Green Bank North Celestial Cap pulsar survey, with the exception of PSR J0957−0619, which was found in the GBT 350 ...
W. Fiore, L. Levin, M. A. McLaughlin, A. Anumarlapudi, D. L. Kaplan, J. K. Swiggum, G. Y. Agazie, R. Bavisotto, P. Chawla, M. E. DeCesar, T. Dolch, E. Fonseca, V. M. Kaspi, Z. Komassa, V. I. Kondratiev, J. van Leeuwen, E. F. Lewis, R. S. Lynch, A. E. McEwen, R. Mundorf, H. Al Noori, E. Parent, Z. Pleunis, S. M. Ransom, X. Siemens, R. Spiewak, I. H. Stairs, M. Surnis, T. J. Tobin   +28 more
doaj   +1 more source

Mitochondria Dictate Progressive Versus Bimodal Aging of the Mammary Gland

Aging Cell, Volume 25, Issue 8, August 2026.
Breast cancer shows a bimodal age distribution with a peak at 45 and higher peak at 65. Using mice with different mitochondrial genomes, we show progressive and bimodal patterns of aging of the mammary gland with distinct pro‐tumorigenic age windows. This finding may shed light on the bimodal distribution in humans.
Edmund Charles Jenkins, Mrittika Chattopadhyay, Thelma Mashaka, Miguel Torres‐Martin, Daniela Sia, Igor Bado, Doris Germain   +6 more
wiley   +1 more source

Transformation of a Star into a Planet in a Millisecond Pulsar Binary [PDF]

Science, 2011
Timing observations of a millisecond pulsar reveal a planet that is far denser than any known planet.
Bailes M, Bates SD, Bhalerao V, Bhat NDR, Burgay M, Burke Spolaor S, D'AMICO, NICOLO', Johnston S, Keith MJ, Kramer M, Kulkarni SR, Levin L, Lyne AG, Milia S, Possenti A, Spitler L, Stappers B, van Straten W.   +17 more
openaire   +5 more sources