Results 71 to 80 of about 98,496 (277)

Swinging between rotation and accretion power in a binary millisecond pulsar

EPJ Web of Conferences, 2014
We present the discovery of IGR J18245–2452, the first millisecond pulsar observed to swing between a rotation-powered, radio pulsar state, and an accretion-powered X-ray pulsar state [31]. This transitional source represents the most convincing proof of
Papitto A., Ferrigno C., Bozzo E., Rea N.   +3 more
doaj   +1 more source

Optical Identification of the Shortest-period Spider Pulsar System M71E

The Astrophysical Journal, 2023
M71E is a spider pulsar (i.e., a millisecond pulsar with a tight binary companion) with the shortest known orbital period of P = 53.3 minutes, which was discovered by Pan et al.
Zhuokai Liu, Subo Dong
doaj   +1 more source

Optical and Infrared Lightcurve Modeling of the Gamma-ray Millisecond Pulsar 2FGL J2339.6-0532 [PDF]

Journal of Astronomy and Space Sciences, 2013
We report the detection of a quasi-sinusoidally modulated optical flux with a period of 4.6343 hour in the optical and infrared band of the Fermi source 2FGL J2339.7-0531.
Tzu-Ching Yen, Albert Kwok-Hing Kong, Yoichi Yatsu, Hidekazu Hanayama, Takahiro Nagayama, on behalf of OISTER   +5 more
doaj   +1 more source

Simultaneous Chandra and VLA Observations of the Transitional Millisecond Pulsar PSR J1023+0038: Anti-correlated X-Ray and Radio Variability [PDF]

, 2017
We present coordinated Chandra X-ray Observatory and Karl G. Jansky Very Large Array observations of the transitional millisecond pulsar PSR J1023+0038 in its low-luminosity accreting state. The unprecedented five hours of strictly simultaneous X-ray and
S. Bogdanov, A. Deller, J. Miller-Jones, A. Archibald, J. Hessels, A. Jaodand, A. Patruno, C. Bassa, C. D’Angelo   +8 more
semanticscholar   +1 more source

X-ray and $\gamma$-ray Studies of the Millisecond Pulsar and Possible X-ray Binary/Radio Pulsar Transition Object PSR J1723-2837 [PDF]

, 2013
We present X-ray observations of the "redback" eclipsing radio millisecond pulsar and candidate radio pulsar/X-ray binary transition object PSR J1723-2837.
Bogdanov, Slavko, Crawford III, Fronefield, Esposito, Paolo, Freire, Paulo, McLaughlin, Maura A., Possenti, Andrea   +5 more
core   +3 more sources

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   +2 more sources

Improved Galactic diffuse emission model strengthens the case for a Millisecond Pulsar explanation of the Fermi GeV excess

SciPost Physics Proceedings, 2023
After more than a decade since its discovery, the Galactic center gamma-ray excess - discovered with the Fermi Large Area Telescope - remains puzzling. While the spectrum of the signal can be explained by either dark matter or an unresolved population of
Oscar Macias, Martin Pohl, Chris Gordon, Phaedra Coleman
doaj   +1 more source

The characteristics of millisecond pulsar emission: I. Spectra, pulse shapes and the beaming fraction

, 1998
We have monitored a large sample of millisecond pulsars using the 100-m Effelsberg radio telescope in order to compare their radio emission properties to the slowly rotating population.
Alexander Wolszczan, Axel Jessner, Backer D. C., Bell J. F., Biggs J. D., Clifton T. R., D'Amico N., Doroshenko O. V., Duncan R. Lorimer, Fernando Camilo, Geppert U., Gil J. A., Gil J. A., Gil J. A., Jahan Miri M., Johnston S., Kanbach G., Kijak J., Kiriaki M. Xilouris, Kramer M., Kramer M., Lorimer D. R., Lorimer D. R., Lyne A. G., Malofeev V. M., Manchester R. N., Matese J. J., Michael Kramer, Narayan R., Nicastro L., Oleg Doroshenko, Ott M., Radhakrishnan V., Richard Wielebinski, Seiradakis J. H., Shklovskii I. S., Srinivasan G., Van den Heuvel E. P. J., von Hoensbroech A., von Hoensbroech A., Xilouris K. M.   +40 more
core   +1 more source

Gamma-ray Burst Afterglow with Continuous Energy Injection: Signature of a Highly-Magnetized Millisecond Pulsar

, 2001
We investigate the consequences of a continuously injecting central engine on the gamma-ray burst afterglow emission, focusing more specifically on a highly-magnetized millisecond pulsar engine.
Bing Zhang, Dai Z. G., Masetti N., Peter Mészáros, Spruit H. C., Thompson C.   +5 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