Results 221 to 230 of about 15,813 (253)
Some of the next articles are maybe not open access.
Nature, 1987
The recent discovery1,2 of a 3-millisecond pulsar in the globular cluster M28 (NGC6626) suggests that a few per cent of type I super novae (of which there are several subcategories, all associated with old stellar populations) form neutron stars. If the contact-binary white dwarf model for type Is is invoked3, it seems probable that millisecond pulsars
Frederick C. Michel, Frederick C. Michel
openaire +2 more sources
The recent discovery1,2 of a 3-millisecond pulsar in the globular cluster M28 (NGC6626) suggests that a few per cent of type I super novae (of which there are several subcategories, all associated with old stellar populations) form neutron stars. If the contact-binary white dwarf model for type Is is invoked3, it seems probable that millisecond pulsars
Frederick C. Michel, Frederick C. Michel
openaire +2 more sources
1992
A study of the flux density and component emission of four millisecond radio pulsars shows that on average millisecond radio pulsars have steeper spectra than slow period pulsars. The results of flux density measurements of four millisecond pulsars, PSRs 1620-26, 1821-24, 1855+09, and 1937+21, have been made to determine their spectral indices in the ...
L. Fairhead, R. S. Foster, D. C. Backer
openaire +2 more sources
A study of the flux density and component emission of four millisecond radio pulsars shows that on average millisecond radio pulsars have steeper spectra than slow period pulsars. The results of flux density measurements of four millisecond pulsars, PSRs 1620-26, 1821-24, 1855+09, and 1937+21, have been made to determine their spectral indices in the ...
L. Fairhead, R. S. Foster, D. C. Backer
openaire +2 more sources
Timing of accreting millisecond pulsars
AIP Conference Proceedings, 2008We review recent results from the X‐ray timing of accreting millisecond pulsars in LMXBs. This is the first time a timing analysis is performed on accreting millisecond pulsars, and for the first time we can obtain information on the behavior of a very fast pulsar subject to accretion torques.
T. Di Salvo +7 more
openaire +3 more sources
Il Nuovo Cimento C, 1990
In this paper we briefly review the observed parameters of the presently known millisecond pulsars and the general ideas about their formation secenario. We describe the results of recent searche and unbiased surveys, and we discuss some possible observation strategies.
openaire +2 more sources
In this paper we briefly review the observed parameters of the presently known millisecond pulsars and the general ideas about their formation secenario. We describe the results of recent searche and unbiased surveys, and we discuss some possible observation strategies.
openaire +2 more sources
Implications of a half-millisecond pulsar
Physical Review Letters, 1989New models of rotating neutron stars show that only a surprisingly narrow range of possible equations of state (EOS's) can simultaneously allow a rotating neutron star with frequency as large as 1968 Hz and a spherical (nonrotating) neutron star with mass as large as 1.44${\mathrm{M}}_{\mathrm{\ensuremath{\bigodot}}}$.
John L. Friedman +2 more
openaire +3 more sources
A Millisecond Pulsar in an Eclipsing Binary
Nature, 1988We report the discovery of a remarkable pulsar with period 1.6 ms, moving in a nearly circular 9.17 hour orbit around a low mass companion star. At an observing frequency of 430 MHz, the pulsar, PSR 1957+20, is eclipsed once each orbit for about 50 minutes.
A. S. Fruchter +2 more
openaire +2 more sources
Discovery of a millisecond pulsar
AIP Conference Proceedings, 1983We have discovered a pulsar with a period of about 1.556 milliseconds. The discovery of the pulsar has cleared up the mystery surrounding the enigmatic source, 4C21.53. An exposition of the history of the search process, results from our timing program, the pulse waveform, the distance and the origin of the pulsar are discussed.
openaire +2 more sources
Polarimetry of the millisecond pulsar
Nature, 1983The millisecond pulsar1 PSR1937 + 21 might be expected to have unique waveform and polarization properties as a result of its remarkably short period and small spin-down rate2,3. The proximity of the velocity of light cylinder to the star (RLC = 7.4 × 106 cm) and the low value of inferred magnetic field (∼108 G, 10−4 that of the Crab pulsar) should ...
openaire +2 more sources
Binary and Millisecond Pulsars
2014The first evidence for neutron stars residing in binaries came in the early 60s when Giacconi et al. (1962) discovered the first extrasolar X-ray source, Sco X\(-\)1.
openaire +2 more sources
The binary and millisecond pulsars
Contemporary Physics, 1992Abstract Most of the 500 known pulsars are solitary. A recently discovered population of binary pulsars now amounts to about 3% of the total; most of these have very short periods, and many of them are found in Globular Clusters. There is a clear evolutionary link between the X-ray binaries and pulsars. Mass transfer within the binary provides both the
openaire +2 more sources