Results 71 to 80 of about 3,124 (236)

A VLITE Search for Millisecond Pulsars in Globular Clusters: Discovery of a Pulsar in GLIMPSE-C01

The Astrophysical Journal
We present results from a search for pulsars in globular clusters, including the discovery of a new millisecond pulsar in the stellar cluster GLIMPSE-C01.
Amaris V. McCarver, Thomas J. Maccarone, Scott M. Ransom, Tracy E. Clarke, Simona Giacintucci, Wendy M. Peters, Emil Polisensky, Kristina Nyland, Tasha Gautam, Paulo C. C. Freire, Blagoy Rangelov   +10 more
doaj   +1 more source

The NANOGrav 15 yr Data Set: Observations and Timing of 68 Millisecond Pulsars

The Astrophysical Journal Letters, 2023
We present observations and timing analyses of 68 millisecond pulsars (MSPs) comprising the 15 yr data set of the North American Nanohertz Observatory for Gravitational Waves (NANOGrav).
Gabriella Agazie, Md Faisal Alam, Akash Anumarlapudi, Anne M. Archibald, Zaven Arzoumanian, Paul T. Baker, Laura Blecha, Victoria Bonidie, Adam Brazier, Paul R. Brook, Sarah Burke-Spolaor, Bence Bécsy, Christopher Chapman, Maria Charisi, Shami Chatterjee, Tyler Cohen, James M. Cordes, Neil J. Cornish, Fronefield Crawford, H. Thankful Cromartie, Kathryn Crowter, Megan E. DeCesar, Paul B. Demorest, Timothy Dolch, Brendan Drachler, Elizabeth C. Ferrara, William Fiore, Emmanuel Fonseca, Gabriel E. Freedman, Nate Garver-Daniels, Peter A. Gentile, Joseph Glaser, Deborah C. Good, Kayhan Gültekin, Jeffrey S. Hazboun, Ross J. Jennings, Cody Jessup, Aaron D. Johnson, Megan L. Jones, Andrew R. Kaiser, David L. Kaplan, Luke Zoltan Kelley, Matthew Kerr, Joey S. Key, Anastasia Kuske, Nima Laal, Michael T. Lam, William G. Lamb, T. Joseph W. Lazio, Natalia Lewandowska, Ye Lin, Tingting Liu, Duncan R. Lorimer, Jing Luo, Ryan S. Lynch, Chung-Pei Ma, Dustin R. Madison, Kaleb Maraccini, Alexander McEwen, James W. McKee, Maura A. McLaughlin, Natasha McMann, Bradley W. Meyers, Chiara M. F. Mingarelli, Andrea Mitridate, Cherry Ng, David J. Nice, Stella Koch Ocker, Ken D. Olum, Elisa Panciu, Timothy T. Pennucci, Benetge B. P. Perera, Nihan S. Pol, Henri A. Radovan, Scott M. Ransom, Paul S. Ray, Joseph D. Romano, Laura Salo, Shashwat C. Sardesai, Carl Schmiedekamp, Ann Schmiedekamp, Kai Schmitz, Brent J. Shapiro-Albert, Xavier Siemens, Joseph Simon, Magdalena S. Siwek, Ingrid H. Stairs, Daniel R. Stinebring, Kevin Stovall, Abhimanyu Susobhanan, Joseph K. Swiggum, Stephen R. Taylor, Jacob E. Turner, Caner Unal, Michele Vallisneri, Sarah J. Vigeland, Haley M. Wahl, Qiaohong Wang, Caitlin A. Witt, Olivia Young, The NANOGrav Collaboration   +100 more
doaj   +1 more source

Pulsed Gamma-Ray Emission of PSR J0447+2447

The Astrophysical Journal
PSR J0447+2447 is an isolated millisecond pulsar with a period of ∼2.9953 ms discovered by the Five-hundred-meter Aperture Spherical radio Telescope (FAST).
Liancheng Zhou, Li Zhang, Jun Fang, Z. L. Yang, Yi Yan, J. L. Han   +5 more
doaj   +1 more source

Binary and Millisecond Pulsars

Living Reviews in Relativity, 2005
We review the main properties, demographics and applications of binary and millisecond radio pulsars. Our knowledge of these exciting objects has greatly increased in recent years, mainly due to successful surveys which have brought the known pulsar ...
Lorimer Duncan R.
doaj  

H I Absorption Line and Anomalous Dispersion in the Radio Pulses of PSR B1937+21

The Astrophysical Journal
We use the Five-hundred-meter Aperture Spherical radio Telescope to observe the bright millisecond pulsar PSR B1937+21 (J1939+2134) and record the data in the band from 1.0 to 1.5 GHz.
Jinchen Jiang, Shunshun Cao, Kejia Lee, Bojun Wang, Heng Xu, Siyuan Chen, Yanjun Guo, Peng Jiang, Weicong Jing, Jiguang Lu, Jiangwei Xu, Renxin Xu, Zihan Xue   +12 more
doaj   +1 more source

Decade-long Timing Study of the Black Widow Millisecond Pulsar J1544+4937

The Astrophysical Journal, 2023
Results from 11 yr of radio timing for the eclipsing black widow millisecond pulsar (MSP) binary J1544+4937 is presented in this paper. We report a phase-connected timing model for this MSP, using observations with the Giant Metrewave Radio Telescope ...
Sangita Kumari, Bhaswati Bhattacharyya, Devojyoti Kansabanik, Jayanta Roy   +3 more
doaj   +1 more source

COSMIC-RAY POSITRONS FROM MILLISECOND PULSARS [PDF]

The Astrophysical Journal, 2015
Observations by the Fermi Large Area Telescope of gamma-ray millisecond pulsar light curves imply copious pair production in their magnetospheres, and not exclusively in those of younger pulsars. Such pair cascades may be a primary source of Galactic electrons and positrons, contributing to the observed enhancement in positron flux above ~10 GeV. Fermi
C. Venter, A. Kopp, A. K. Harding, P. L. Gonthier, I. Büsching   +4 more
openaire   +4 more sources

The second millisecond pulsar [PDF]

Nature, 1983
On the principle that no celestial object is unique, the discovery of another millisecond pulsar is overdue. That reported on page 417 has an unexpected interest.
openaire   +1 more source

Decade-long Timing of Four GMRT Discovered Millisecond Pulsars

The Astrophysical Journal
The discovery and timing follow up of millisecond pulsars (MSPs) are necessary not just for their usefulness in pulsar timing arrays (PTAs) but also for investigating their own intriguing properties.
Shyam S. Sharma, Jayanta Roy, Bhaswati Bhattacharyya, Lina Levin   +3 more
doaj   +1 more source

Timing of Millisecond Pulsars [PDF]

Symposium - International Astronomical Union, 1996
Arrival times of some millisecond pulsars can be measured with sub-microsecond precision. This allows unprecedented measurements of the rotation of these stars, astrometric parameters including proper motion and parallax, motion in binary and complex dynamical systems, perturbations resulting from propagation through small scale turbulence in the ...
openaire   +1 more source