Results 121 to 130 of about 2,869 (212)

A 350 MHz Green Bank Telescope Survey of Unassociated Fermi LAT Sources: Discovery and Timing of 10 Millisecond Pulsars

The Astrophysical Journal
We have searched for radio pulsations toward 49 Fermi Large Area Telescope (LAT) 1FGL Catalog γ -ray sources using the Green Bank Telescope at 350 MHz. We detected 18 millisecond pulsars (MSPs) in blind searches of the data; 10 of these were discoveries ...
P. Bangale, B. Bhattacharyya, F. Camilo, C. J. Clark, I. Cognard, M. E. DeCesar, E. C. Ferrara, P. Gentile, L. Guillemot, J. W. T. Hessels, T. J. Johnson, M. Kerr, M. A. McLaughlin, L. Nieder, S. M. Ransom, P. S. Ray, M. S. E. Roberts, J. Roy, S. Sanpa-arsa, G. Theureau, M. T. Wolff   +20 more
doaj   +1 more source

The detectability of eccentric binary pulsars

, 2014
Studies of binary pulsars provide insight into various theories of physics. Detection of such systems is challenging due to the Doppler modulation of the pulsed signal caused by the orbital motion of the pulsar. We investigated the loss of sensitivity in eccentric binary systems for different types of companions. This reduction of sensitivity should be
Bagchi, Manjari, Lorimer, Duncan R., Wolfe, Spencer   +2 more
openaire   +2 more sources

Can Slow Pulsars in Milky Way Globular Clusters Form via Partial Recycling?

The Astrophysical Journal Letters
Alongside the population of several hundred radio millisecond pulsars currently known in Milky Way globular clusters, a subset of six slowly spinning pulsars (spin periods 0.3–4 s) are also observed.
Kyle Kremer, Claire S. Ye, Craig O. Heinke, Anthony L. Piro, Scott M. Ransom, Frederic A. Rasio   +5 more
doaj   +1 more source

Etude multilongueur d'onde des pulsars milliseconde

, 2011
Les pulsars milliseconde (MSPs) sont des étoiles à neutrons caractérisées par une période de rotation de l'ordre de la milliseconde. Ils sont très probablement accélérés (recyclés) dans des systèmes binaires par transfert de moment cinétique lors d'une ...
Pancrazi, Benoît
core  

Recovering Pulsar Periodicity from Time-of-arrival Data by Finding the Shortest Vector in a Lattice

The Astrophysical Journal
The strict periodicity of pulsars is one of the primary ways through which their nature and environment can be studied, and it has also enabled precision tests of general relativity and studies of nanohertz gravitational waves using pulsar timing arrays (
Dotan Gazith, Aaron B. Pearlman, Barak Zackay   +2 more
doaj   +1 more source

Identifying Companions in Pulsar Binary Systems via Gaia Data

Universe
In the optical band, very few pulsars can be directly detected, but some of the pulsar binary companions can be observed. This study leverages high-precision astrometric data from Gaia Data Release 3 (DR3) to identify pulsar companions in binary systems.
Yueqi Song, Li Guo, Zhen Yan, Qiqi Wu, Guangli Wang, Ying Wang   +5 more
doaj   +1 more source

CHIME-o-Grav: Wideband Timing of Four Millisecond Pulsars from the NANOGrav 15 yr Dataset

The Astrophysical Journal
Wideband timing of the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) datasets was first done for the 12.5 yr dataset. This method, where a single time of arrival and a single dispersion measure (DM) are measured using the entire
Gabriella Y. Agazie, David L. Kaplan, Abhimanyu Susobhanan, Ingrid H. Stairs, Deborah C. Good, Bradley W. Meyers, Emmanuel Fonseca, Timothy T. Pennucci, Akash Anumarlapudi, Anne M. Archibald, Zaven Arzoumanian, Paul T. Baker, Paul R. Brook, Alyssa Cassity, H. Thankful Cromartie, Kathryn Crowter, Megan E. DeCesar, Paul B. Demorest, Timothy Dolch, Fengqiu Adam Dong, Elizabeth C. Ferrara, William Fiore, Gabriel E. Freedman, Nate Garver-Daniels, Peter A. Gentile, Joseph Glaser, Jeffrey S. Hazboun, Ross J. Jennings, Megan L. Jones, Matthew Kerr, Michael T. Lam, Duncan R. Lorimer, Jing Luo, Ryan S. Lynch, Alexander McEwen, James W. McKee, Maura A. McLaughlin, Natasha McMann, Cherry Ng, David J. Nice, Benetge B. P. Perera, Nihan S. Pol, Henri A. Radovan, Scott M. Ransom, Paul S. Ray, Alexander Saffer, Ann Schmiedekamp, Carl Schmiedekamp, Brent J. Shapiro-Albert, Kevin Stovall, Joseph K. Swiggum, Mercedes S. Thompson, Haley M. Wahl   +52 more
doaj   +1 more source

A Striking Confluence Between Theory and Observations of High-Mass X-ray Binary Pulsars. [PDF]

Res Astron Astrophys, 2018
Christodoulou DM, Laycock SGT, Kazanas D.   +2 more
europepmc   +1 more source

Discovery of a radio emitting neutron star with an ultra-long spin period of 76 seconds. [PDF]

Nat Astron, 2022
Caleb M, Heywood I, Rajwade K, Malenta M, Stappers B, Barr E, Chen W, Morello V, Sanidas S, van den Eijnden J, Kramer M, Buckley D, Brink J, Motta SE, Woudt P, Weltevrede P, Jankowski F, Surnis M, Buchner S, Bezuidenhout MC, Driessen LN, Fender R.   +21 more
europepmc   +1 more source

Understanding the evolution of close binary systems with radio pulsars [PDF]

, 2019
We calculate the evolution of close binary systems (CBSs) formed by a neutron star (behaving as a radio pulsar) and a normal donor star, which evolve either to a helium white dwarf (HeWD) or to ultra-short orbital period systems.
De Vito, María Alejandra, Horvath, J. E., Benvenuto, Omar Gustavo   +2 more
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