Results 141 to 150 of about 847,988 (312)

Discovery of Eight Recycled Pulsars - The Swinburne Intermediate Latitude Pulsar Survey [PDF]

arXiv, 1999
We have conducted a pulsar survey of intermediate Galactic latitudes (15deg < |b| < 5deg) at 20 cm. The survey has been highly successful, discovering 58 new pulsars, eight of which are recycled, in only ~14 days of integration time. One pulsar has a very narrow (2deg FWHM) average profile for the pulsar's period (278 ms).
arxiv  

A New Search Technique for Short Orbital Period Binary Pulsars [PDF]

, 2002
We describe a new and efficient technique, which we call sideband or phase-modulation searching, that allows one to detect short-period binary pulsars in observations longer than the orbital period.
S. Ransom, J. Cordes, S. Eikenberry
semanticscholar   +1 more source

The Anomalous Acceleration of PSR J2043+1711: Long-period Orbital Companion or Stellar Flyby?

The Astrophysical Journal
Based on the rate of change of its orbital period, PSR J2043+1711 has a substantial peculiar acceleration of 3.5 ± 0.8 mm s ^–1 yr ^–1 , which deviates from the acceleration predicted by equilibrium Milky Way (MW) models at a 4 σ level.
Thomas Donlon II, Sukanya Chakrabarti, Michael T. Lam, Daniel Huber, Daniel Hey, Enrico Ramirez-Ruiz, Benjamin Shappee, David L. Kaplan, Gabriella Agazie, Akash Anumarlapudi, Anne M. Archibald, Zaven Arzoumanian, Paul T. Baker, Paul R. Brook, H. Thankful Cromartie, Kathryn Crowter, Megan E. DeCesar, Paul B. Demorest, Timothy Dolch, Elizabeth C. Ferrara, William Fiore, Emmanuel Fonseca, Gabriel E. Freedman, Nate Garver-Daniels, Peter A. Gentile, Joseph Glaser, Deborah C. Good, Jeffrey S. Hazboun, Mark Huber, Ross J. Jennings, Megan L. Jones, Matthew Kerr, Duncan R. Lorimer, Jing Luo, Ryan S. Lynch, Alexander McEwen, Maura A. McLaughlin, Natasha McMann, Bradley W. Meyers, Cherry Ng, David J. Nice, Timothy T. Pennucci, Benetge B. P. Perera, Nihan S. Pol, Henri A. Radovan, Scott M. Ransom, Paul S. Ray, Ann Schmiedekamp, Carl Schmiedekamp, Brent J. Shapiro-Albert, Ingrid H. Stairs, Kevin Stovall, Abhimanyu Susobhanan, Joseph K. Swiggum, Michael A. Tucker, Haley M. Wahl   +55 more
doaj   +1 more source

The Discovery of the Most Accelerated Binary Pulsar [PDF]

, 2018
Pulsars in relativistic binary systems have emerged as fantastic natural laboratories for testing theories of gravity, the most prominent example being the double pulsar, PSR J0737$-$3039. The HTRU-South Low Latitude pulsar survey represents one of the most sensitive blind pulsar surveys taken of the southern Galactic plane to date, and its primary aim
arxiv   +1 more source

First Systematic Study Reporting the Changes in Eclipse Cutoff Frequency for Pulsar J1544+4937

The Astrophysical Journal
We present results from long-term monitoring of frequency-dependent eclipses of the radio emission from PSR J1544+4937, which is a black widow spider millisecond pulsar (MSP) in a compact binary system.
Sangita Kumari, Bhaswati Bhattacharyya, Rahul Sharan, Devojyoti Kansabanik, Benjamin Stappers, Jayanta Roy   +5 more
doaj   +1 more source

Binary Pulsar Tests of General Relativity in the Presence of Low-Frequency Noise [PDF]

, 1999
The influence of the low-frequency timing noise on the precision of measurements of the Keplerian and post-Keplerian orbital parameters in binary pulsars is studied.
Kopeikin, Sergei M., Potapov, Vladimir A.   +1 more
core   +1 more source

Black Widow Pulsars: the Price of Promiscuity

, 2003
The incidence of evaporating 'black widow' pulsars (BWPs) among all millisecond pulsars (MSPs) is far higher in globular clusters than in the field. This implies a special formation mechanism for them in clusters.
A. R. King, Freire P. C., Fruchter A. S., King A. R., King A. R., Lorimer D. R., M. B. Davies, M. E. Beer, Rappaport S., van Teeseling A., Verbunt F., Watson M. G.   +11 more
core   +1 more source

Determination of the orbital parameters of binary pulsars [PDF]

, 2000
We present a simple, novel method for determining the orbital parameters of binary pulsars. This method works with any sort of orbital sampling, no matter how sparse, provided that information on the period derivatives is available with each measurement ...
P. Freire, Michael Kramer, A. Lyne
semanticscholar   +1 more source

A Systematic Search for Redback and Black Widow Candidates Based on the 4FGL-DR3 Unassociated Sources and the Zwicky Transient Facility Data

The Astrophysical Journal
Spider pulsars represent a unique subclass of radio millisecond pulsars in binaries, and are further categorized into black widows and redbacks according to the mass of the low-mass companion.
Chunyan Lu, Liangliang Ren, Jiamao Lin, Wenjun Huang, Hewen Yang, P. H. Thomas Tam   +5 more
doaj   +1 more source

Verification of f(R)-gravity in binary pulsars

EPJ Web of Conferences, 2016
We develop the parameterized post-Keplerian approach for class of analytic f (R)-gravity models. Using the double binary pulsar system PSR J0737-3039 data we obtain restrictions on the parameters of this class of f (R)-models and show that f (R)-gravity ...
Dyadina Polina, Alexeyev Stanislav, Capozziello Salvatore, De Laurentis Mariafelicia   +3 more
doaj   +1 more source