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Binary millisecond pulsars (MSPs) provide several opportunities for research of fundamental physics. However, finding them can be challenging. Several subdwarf B (sdB) binary systems with possible neutron star companions have been…

High Energy Astrophysical Phenomena · Physics 2020-01-22 L. C. Oostrum , J. van Leeuwen , Y. Maan , T. Coenen , C. H. Ishwara-Chandra

The pulsar velocity distribution provides information about the binary history of pulsar progenitors as well as asymmetries of the supernova events in which pulsars are born. Studies of local pulsars present a biased view of this…

Astrophysics · Physics 2009-10-31 R. S. McGary , W. F. Brisken , A. S. Fruchter , W. M. Goss , S. E. Thorsett

Pulsars are rotating neutron stars, sweeping the emission regions from the magnetic poles across our line of sight. Isolated neutron stars lose angular momentum through dipole radiation and (possibly) particle winds, hence they slow down…

Astrophysics · Physics 2007-05-23 R Dodson , D. R. Lewis , P. M. McCulloch

We report the discovery of 19 new pulsars identified from archival observations of the Five-hundred-meter Aperture Spherical radio Telescope (FAST) within Galactic latitudes $|b|<5\deg$ and declinations ${\rm Decl.}<-5\deg$. The dataset was…

High Energy Astrophysical Phenomena · Physics 2026-01-06 Shi-Jie Gao , Yi-Xuan Shao , Xiang-Dong Li

Polaris, the nearest and brightest Cepheid, is a potential anchor point for the Leavitt period-luminosity relation. However, its distance is a matter of contention, with recent advocacy for a parallax of ~10 mas, in contrast with the…

Solar and Stellar Astrophysics · Physics 2018-02-07 Howard E. Bond , Edmund P. Nelan , Nancy Remage Evans , Gail H. Schaefer , Dianne Harmer

We report the discovery of pulsars J0030+0451, J0711+0931, and J1313+0931 that were found in a search of 470 square degrees at 430 MHz using the 305m Arecibo telescope. The search has an estimated sensitivity for long period, low dispersion…

We have carried out a sensitive search for young pulsars associated with supernova remnants using the 76-m Lovell radio telescope at Jodrell Bank. The observations were made at 606 MHz using a system with a bandwidth of 8 MHz and a set…

Astrophysics · Physics 2007-05-23 D. R. Lorimer , A. G. Lyne , F. Camilo

The phenomenon of profile mode switching in pulsars, where the stable average pulse profile changes to another stable state on the timescale of a pulsar's period, remains poorly understood. We sought to understand how pulsars undergo…

High Energy Astrophysical Phenomena · Physics 2019-02-13 Casey Brinkman , Dipanjan Mitra , Joanna Rankin

We identified 97 strong pulsars from the NRAO VLA Sky Survey (NVSS) at 1.4 GHz north of Dec(J2000) $>-40\degr$. The total flux density, linear polarization intensity and polarization angle (PA) of all pulsars are extracted from the NVSS…

Astrophysics · Physics 2015-06-24 J. L. Han , W. W. Tian

We present two millisecond pulsar discoveries from the PALFA survey of the Galactic plane with the Arecibo telescope. PSR J1955+2527 is an isolated pulsar with a period of 4.87 ms, and PSR J1949+3106 has a period of 13.14 ms and is in a…

Pulsar distances are notoriously difficult to measure, and play an important role in many fundamental physics experiments, such as pulsar timing arrays (PTAs). Here we perform a cross-match between International PTA pulsars (IPTA) and…

Instrumentation and Methods for Astrophysics · Physics 2023-09-04 Abigail Moran , Chiara M. F. Mingarelli , Megan Bedell , Deborah Good , David N. Spergel

The energetic, eclipsing millisecond pulsar J1816+4510 was recently discovered in a low-frequency radio survey with the Green Bank Telescope. With an orbital period of 8.7 hr and minimum companion mass of 0.16 Msun it appears to belong to…

Multi-epoch phase-referencing VLBI (Very Long Baseline Interferometry) observations with VERA (VLBI Exploration of Radio Astrometry) were performed for the symbiotic star R Aquarii (R Aqr) from September 2005 to Oct 2006. Tracing one of the…

Solar and Stellar Astrophysics · Physics 2015-06-18 Cheulhong Min , Naoko Matsumoto , Mi Kyoung Kim , Tomoya Hirota , Katsunori M. Shibata , Se-Hyung Cho , Makoto Shizugami , Mareki Honma

Giant radio pulses of the millisecond pulsar B1937+21 were recorded with the S2 VLBI system at 1.65 GHz with NASA/JPL's 70-m radio telescope at Tidbinbilla, Australia. These pulses have been observed as strong as 65000 Jy with widths <= 15…

We have determined positions, proper motions, and parallaxes of $77$ millisecond pulsars (MSPs) from $\sim3$ years of MeerKAT radio telescope observations. Our timing and noise analyses enable us to measure $35$ significant parallaxes ($12$…

We report on 12 years of observations of PSR J1713+0747, a pulsar in a 68-day orbit with a white dwarf. Pulse times of arrival were measured with uncertainties as small as 200 ns. The timing data yielded measurements of the relativistic…

Pulsars are rotating neutron stars, sweeping the emission regions from the magnetic poles across our line of sight. Isolated neutron stars lose angular momentum through dipole radiation and (possibly) particle winds, hence they slow down…

Astrophysics · Physics 2009-11-07 R. G. Dodson , P. M. McCulloch , D. R. Lewis

We have studied the statistical and polarization properties of giant pulses (GPs) emitted by the millisecond pulsar B1937+21, with high sensitivity and time resolution. The observations were made in June 2005 with the 100-m Robert C. Byrd…

High Energy Astrophysical Phenomena · Physics 2015-06-12 V. I. Zhuravlev , M. V. Popov , V. A. Soglasnov , V. I. Kondrat'ev , Y. Y. Kovalev , N. Bartel , F. Ghigo

We report the discovery of gamma-ray pulsations (> 0.1 GeV) from the young radio and X-ray pulsar PSR J0205+6449 located in the Galactic supernova remnant 3C 58. Data in the gamma-ray band were acquired by the Large Area Telescope aboard…

High Energy Astrophysical Phenomena · Physics 2009-07-09 Fermi LAT collaboration , Fermi Pulsar Timing Consortium

A survey of the Galactic plane in the region $-60\degree \leq l \leq 30\degree$, $|b| \leq 0.25\degree$ was carried out using the seven-beam Parkes Methanol Multibeam (MMB) receiver, which operates at a frequency of 6.5 GHz. Three pulsars…

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