Results 101 to 110 of about 654,536 (207)

The Parkes Multibeam Pulsar Survey - V. Finding binary and millisecond pulsars

, 2004
The Parkes Multibeam Pulsar Survey is the most successful survey of the Galactic plane ever performed, finding over 600 pulsars in the initial processing. We report on a reprocessing of all 40 000 beams with a number of algorithms, including conventional
Faulkner AJ, Lyne AG, Manchester RN, D'AMICO, NICOLO', Camilo F, Burgay M., Stairs IH, Kramer M, McLaughlin MA, Hobbs G, Possenti A, Lorimer DR   +11 more
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Eclipsing Binary Pulsars

, 2004
The first eclipsing binary pulsar, PSR B1957+20, was discovered in 1987. Since then, 13 other eclipsing low-mass binary pulsars have been found, 12 of these are in globular clusters. In this paper we list the known eclipsing binary pulsars and their properties, with special attention to the eclipsing systems in 47 Tuc.
openaire   +2 more sources

An Alternative Explanation for the Helium Star Pulsar Binary J1928+1815: The Most Heavyweight Black Widow System to Date

The Astrophysical Journal
We present the results of deep near-infrared imaging of the recently discovered helium star pulsar binary J1928+1815 situated in the Galactic plane. Our observations did not achieve significant detections, providing limiting magnitudes of J = 23.7 and H =
Hang Gong, Alexey Bobrick, Francisco Garzón, Deven Bhakta, Thomas Maccarone, Sangita Kumari, Nieves Castro Rodríguez, Antonio Cabrera-Lavers, Arash Bahramian, Jifeng Liu   +9 more
doaj   +1 more source

Formation and nature of “Huntsman” binary pulsars

Astronomy & Astrophysics
Context. “Spider” systems are a class of close binaries in which a neutron star first accretes from a normal companion, and later ablates it in some cases. New observations have expanded this category, with the addition of a “Huntsman” group, tentatively linked to a short donor phase along the red bump along the secondary evolutionary track. Aims.
O. G. Benvenuto, M. A. De Vito, M. Echeveste, M. L. Novarino, N. D. Pires, L. M. de Sá, J. E. Horvath   +6 more
openaire   +2 more sources

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

Pulsars

, 2006
One of the most fundamental discoveries in physics and astrophysics was made with the discovery of pulsars. Ever since, pulsars – and later in particular binary and millisecond pulsars – have been studied as extreme end-states of stellar evolution, as ...
M. Kramer
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Exploring Unusual High-frequency Eclipses in MSP J1908+2105

The Astrophysical Journal
This paper presents a comprehensive study of the eclipse properties of the spider millisecond pulsar (MSP) J1908+2105, using wide-band observations from the uGMRT and Parkes UWL. For the first time, we observed that this pulsar exhibits extended eclipses
Ankita Ghosh, Bhaswati Bhattacharyya, Sangita Kumari, Simon Johnston, Patrick Weltevrede, Jayanta Roy   +5 more
doaj   +1 more source

Searching for pulsars in close circular binary systems [PDF]

, 2002
We present a detailed mathematical analysis of the Fourier response of binary pulsar signals whose frequencies are modulated by circular orbital motion. The fluctuation power spectrum of such signals is found to be νorb-periodic over a compact frequency ...
S. Jouteux, R. Ramachandran, Stappers, B. W.; id_orcid, Van Der Klis, M., Stappers, B.W., B. W. Stappers, Jonker, P. G., Ramachandran, R., M. van der Klis, Jouteux, S., Jonker, P.G., P. G. Jonker   +11 more
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Wide binary pulsars from electron-capture supernovae

, 2022
Neutron stars receive velocity kicks at birth in supernovae. Those formed in electron-capture supernovae from superasymptotic giant branch stars - the lowest mass stars to end their lives in supernovae - may receive significantly lower kicks than typical
Willcox, Reinhold, Vigna-Gomez, Alejandro, Stevenson, Simon, Broekgaarden, Floor, Floor Broekgaarden, Alejandro Vigna-Gómez, Simon Stevenson, Reinhold Willcox   +7 more
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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