Millisecond pulsars: A new population of gamma ray sources?

1990 ◽  
Vol 10 (2) ◽  
pp. 167-178 ◽  
Author(s):  
G. Srinivasan
2012 ◽  
Vol 8 (S291) ◽  
pp. 87-92
Author(s):  
L. Guillemot

AbstractObservations of pulsars with the Large Area Telescope (LAT) on the Fermi satellite have revolutionized our view of the gamma-ray pulsar population. For the first time, a large number of young gamma-ray pulsars have been discovered in blind searches of the LAT data. More generally, the LAT has discovered many new gamma-ray sources whose properties suggest that they are powered by unknown pulsars. Radio observations of gamma-ray sources have been key to the success of pulsar studies with the LAT. For example, radio observations of LAT-discovered pulsars provide constraints on the relative beaming fractions, which are crucial for pulsar population studies. Also, radio searches of LAT sources with no known counterparts have been very efficient, with the discovery of over forty millisecond pulsars. I review radio follow-up studies of LAT-discovered pulsars and unidentified sources, and discuss some of the implications of the results.


1993 ◽  
Vol 405 ◽  
pp. L59 ◽  
Author(s):  
D. Barret ◽  
P. Mandrou ◽  
M. Denis ◽  
J. F. Olive ◽  
P. Laurent ◽  
...  

2014 ◽  
Vol 213 (1) ◽  
pp. 6 ◽  
Author(s):  
T. J. Johnson ◽  
C. Venter ◽  
A. K. Harding ◽  
L. Guillemot ◽  
D. A. Smith ◽  
...  

2011 ◽  
Author(s):  
T. J. Johnson ◽  
C. Venter ◽  
A. K. Harding ◽  
L. Guillemot ◽  
Marta Burgay ◽  
...  

2003 ◽  
Vol 398 (2) ◽  
pp. 639-646 ◽  
Author(s):  
L. Zhang ◽  
K. S. Cheng

2004 ◽  
Vol 218 ◽  
pp. 415-418 ◽  
Author(s):  
Mallory Roberts ◽  
Scott Ransom ◽  
Jason Hessels ◽  
Margaret Livingstone ◽  
Cindy Tam ◽  
...  

We present the results of radio searches for pulsars within unidentified EGRET source error boxes. Using the Parkes multibeam system, we have surveyed 56 sources at Galactic latitudes |b| > 5° which do not appear to be associated with blazars. This population has been suggested to be distributed like the local star forming region known as the Gould Belt, the Galactic Halo, and/or the millisecond pulsars. We have discovered several new pulsars in this survey, including three new binary systems.


2019 ◽  
Vol 622 ◽  
pp. A194 ◽  
Author(s):  
Z. G. Dai

Observations of short-duration gamma-ray bursts and their afterglows show that a good fraction (perhaps ≳50%) of binary neutron star mergers lead to strongly magnetized, rapidly rotating pulsars (including millisecond magnetars), no matter whether the pulsar remnants are short- or long-lived. Such compact objects are very likely to have significant radial oscillations and high interior temperatures, as indicated in recent numerical simulations. In this paper, we have investigated rotation-induced gravitational radiation from possibly existing, radially oscillating pulsars after binary neutron star mergers, and find that this mechanism can efficiently damp the radial oscillations. The resulting gravitational waves (GWs) could have a non-negligible contribution to the high-frequency spectrum. We provide an order-of-magnitude estimate of the event rate and suggest that such GW events would be detectable with the advanced LIGO/Virgo or next-generation detectors. Our discussion can also be applied to newborn, radially oscillating, millisecond pulsars formed through the other astrophysical processes.


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