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GBT Observations of Very Low Mass Binary Millisecond Pulsars: A Search for Eclipses
David J. Nice, Ingrid H. Stairs, Zaven Arzoumanian
We searched for eclipses of two millisecond pulsars, PSR J1807-2459 and PSR B1908+00. These pulsars are in very low mass binary systems with orbital parameters similar to those of…
Arecibo Measurements of Pulsar--White Dwarf Binaries: Evidence for Heavy Neutron Stars
David J. Nice, Eric M. Splaver, Ingrid H. Stairs
We summarize constraints on neutron star masses from ongoing timing observations of pulsar-white dwarf binaries at Arecibo. The trend is toward pulsar masses larger than the canoni…
Heavy Neutron Stars? A Status Report on Arecibo Timing of Four Pulsar-White Dwarf Systems
David J. Nice, Eric M. Splaver, Ingrid H. Stairs
Relativistic phenomena (orbital precession, Shapiro delay, and/or orbital decay) have been measured in Arecibo timing observations of four pulsar-white dwarf binaries, leading to c…
Neutron Star Masses from Arecibo Timing Observations of Five Pulsar-White Dwarf Binary Systems
David J. Nice, Eric M. Splaver, Ingrid H. Stairs
We have detected relativistic and/or kinematic post-Keplerian parameters of no fewer than five pulsar-white dwarf binary systems in long-term timing observations at Arecibo. We dis…
Binary Eclipsing Millisecond Pulsars: A Decade of Timing
David Nice, Zaven Arzoumanian, Stephen Thorsett
We present results of long-term timing of eclipsing binaries PSR B1744-24A and PSR B1957+20 at Arecibo, the VLA, and Green Bank. Both pulsars exhibit irregularities in pulsar rotat…
Recent Arecibo Timing of the Relativistic Binary PSR B1534+12
I. H. Stairs, D. J. Nice, S. E. Thorsett +1
We present a new timing solution for PSR B1534+12, based on coherently-dedispersed observations at Jodrell Bank and, recently, Arecibo. The new data have resulted in improved measu…