Results 61 to 70 of about 6,438 (185)

VLT/NACO observations of the High-Magnetic field radio pulsar PSR J1119-6127

, 2007
Recent radio observations have unveiled the existence of a number of radio pulsars with spin-down derived magnetic fields in the magnetar range. However, their observational properties appears to be more similar to classical radio pulsars than to ...
Alpar, Anders, Arzoumanian, Baring, Beloborodov, Blackman, Brisken, Camilo, Camilo, Caraveo, Chakrabarty, Chatterjee, Dodson, Durant, Durant, Eikenberry, G. L. Israel, G. Lo. Curto, Gaensler, Gonzalez, Gonzalez, Gotthelf, Gotthelf, Hulleman, Hulleman, Illarionov, Israel, Israel, Israel, Kargaltsev, Kaspi, Koptsevich, Kothes, Lin, Lortet, McClure-Griffiths, Menou, Mereghetti, Michler, Mignani, Mignani, Morii, N. Rea, Patel, Pavlov, Perna, Perna, Predehl, R. P. Mignani, R. Perna, Rea, Rea, Rea, S. Mereghetti, Safi-Harb, Shibanov, Sollerman, Sollerman, Tiengo, Wachter, Wang, Wang, Woods, Woods   +63 more
core   +1 more source

Investigation of Interstellar Scintillation of the Millisecond Pulsar B1937+21 with the FAST

The Astrophysical Journal
Pulsar scintillation serves as a valuable tool for investigating interstellar scattering screens and their properties. In this paper, we report on multiepoch interstellar scintillation from the millisecond pulsar B1937+21 (J1939+2134) using Five-hundred ...
Zhigang Wen, Hui Wang, Zhen Wang, Jianping Yuan, Na Wang, Wenming yan, Wei Han, Xuefeng Duan, Honguang Wang, Pengcheng He, Jianling Chen, Chengbing Lyu   +11 more
doaj   +1 more source

X-Ray Characterization of the Pulsar PSR J1849−0001 and Its Wind Nebula G32.64+0.53 Associated with TeV Sources Detected by H.E.S.S., HAWC, Tibet ASγ, and LHAASO

The Astrophysical Journal, 2023
We report on the X-ray emission properties of the pulsar PSR J1849−0001 and its wind nebula (PWN), as measured by Chandra, XMM-Newton, NICER, Swift, and NuSTAR.
Chanho Kim, Jaegeun Park, Jooyun Woo, Sarah Silverman, Hongjun An, Aya Bamba, Kaya Mori, Stephen P. Reynolds, Samar Safi-Harb   +8 more
doaj   +1 more source

The Benefit of Space Clocks for the Deep Space Network

Radio Science, Volume 60, Issue 8, August 2025.
Abstract Ground‐based atomic clocks have been the foundation of the Deep Space Network's (DSN's) ability to provide high‐precision tracking to deep space users for navigation and radio science since its inception in the mid‐1960s. This paper describes the development of space clocks that could aid the DSN and the solar system exploration enterprise ...
T. Ely, E. Burt, K. Cheung, R. Tjoelker
wiley   +1 more source

Autonomous Spacecraft Navigation Based on Pulsar Timing Information

, 2011
We discuss the possibility of an autonomous navigation system for spacecraft that is based on pulsar timing data. Pulsars are rapidly rotating neutron stars that are observable as variable celestial sources of electromagnetic radiation.
Becker, Werner, Bernhardt, Mike Georg, Breithuth, Ferdinand Maximilian, Prinz, Tobias, Walter, Ulrich   +4 more
core   +1 more source

Einstein@Home Searches for Gamma-Ray Pulsars in the Inner Galaxy

The Astrophysical Journal
The Fermi Large Area Telescope (LAT) has revealed a mysterious extended excess of GeV gamma-ray emission around the Galactic Center (GC), which can potentially be explained by unresolved emission from a population of pulsars, particularly millisecond ...
C. J. Clark, M. Di Mauro, J. Wu, B. Allen, O. Behnke, H. B. Eggenstein, B. Machenschalk, L. Nieder, P. M. Saz Parkinson, A. Ashok, P. Bruel, B. McGloughlin, M. A. Papa, F. Camilo, M. Kerr, P. Voraganti Padmanabh, S. M. Ransom   +16 more
doaj   +1 more source

Atmospheric Effects on Neutron Star Parameter Constraints with NICER

The Astrophysical Journal, 2023
We present an analysis of the effects of uncertainties in the atmosphere models on the radius, mass, and other neutron star parameter constraints for the NICER observations of rotation-powered millisecond pulsars.
Tuomo Salmi, Serena Vinciguerra, Devarshi Choudhury, Anna L. Watts, Wynn C. G. Ho, Sebastien Guillot, Yves Kini, Bas Dorsman, Sharon M. Morsink, Slavko Bogdanov   +9 more
doaj   +1 more source

Estimates of the Surface Magnetic Field Strength of Radio Pulsars

Universe, 2023
We investigate the geometry of the magnetic field of rotation-powered pulsars. A new method for calculating an angle (β) between the spin and magnetic dipole axes of a neutron star (NS) in the ejector stage is considered within the frame of the magnetic ...
Vitaliy Kim, Adel Umirbayeva, Yerlan Aimuratov   +2 more
doaj   +1 more source

Deep Space Network Radio Science and Ground‐Based Planetary Radar in the Next Decade

Radio Science, Volume 60, Issue 7, July 2025.
Abstract The Deep Space Network (DSN) has been a core operational element of NASA's crewed and robotic exploration of the Solar System since the early 1960s. The primary role of the DSN has been to acquire telemetry and navigation data, but over the years, its radiometric and radar capabilities have expanded to form a system for obtaining unique ...
R. S. Park, J. E. Riedel, N. Rodriguez‐Alvarez, M. Brozovic, L. A. M. Benner, P. Vergados, D. Buccino, C. S. Jacobs, L. S. Locke, S. W. Asmar, R. Castano, T. J. W. Lazio, J. Jao, C. Lee   +13 more
wiley   +1 more source

Thermonuclear burst oscillations

, 2012
Burst oscillations, a phenomenon observed in a significant fraction of Type I (thermonuclear) X-ray bursts, involve the development of highly asymmetric brightness patches in the burning surface layers of accreting neutron stars.
Watts, Anna L.
core   +1 more source