Search Results - "Ferdman, R. D."
-
1
Relativistic Shapiro Delay Measurements of an Extremely Massive Millisecond Pulsar
Published in Nature astronomy (01-01-2020)“…Despite its importance to our understanding of physics at supranuclear densities, the equation of state (EoS) of matter deep within neutron stars remains…”
Get full text
Journal Article -
2
The Glitches and Rotational History of the Highly Energetic Young Pulsar PSR J0537-6910
Published in The Astrophysical journal (10-01-2018)“…We present a timing and glitch analysis of the young X-ray pulsar PSR J0537−6910, located within the Large Magellanic Cloud, using 13 yr of data from the…”
Get full text
Journal Article -
3
LONG-TERM TIMING AND EMISSION BEHAVIOR OF THE YOUNG CRAB-LIKE PULSAR PSR B0540-69
Published in The Astrophysical journal (20-10-2015)“…ABSTRACT We present timing solutions and spin properties of the young pulsar PSR B0540-69 from analysis of 15.8 years of data from the Rossi X-Ray Timing…”
Get full text
Journal Article -
4
Asymmetric mass ratios for bright double neutron-star mergers
Published in Nature (London) (09-07-2020)“…The discovery of a radioactively powered kilonova associated with the binary neutron-star merger GW170817 remains the only confirmed electromagnetic…”
Get full text
Journal Article -
5
LIMITS ON THE STOCHASTIC GRAVITATIONAL WAVE BACKGROUND FROM THE NORTH AMERICAN NANOHERTZ OBSERVATORY FOR GRAVITATIONAL WAVES
Published in The Astrophysical journal (10-01-2013)“…We present an analysis of high-precision pulsar timing data taken as part of the North American Nanohertz Observatory for Gravitational Waves (NANOGrav)…”
Get full text
Journal Article -
6
Placing limits on the stochastic gravitational-wave background using European Pulsar Timing Array data
Published in Monthly notices of the Royal Astronomical Society (11-07-2011)“…Direct detection of low-frequency gravitational waves (GWs, Hz) is the main goal of pulsar timing array (PTA) projects. One of the main targets for the PTAs is…”
Get full text
Journal Article -
7
Precise mass measurements for the double neutron star system J1829+2456
Published in Monthly notices of the Royal Astronomical Society (01-02-2021)“…ABSTRACT PSR J1829+2456 is a radio pulsar in a relativistic binary system with another neutron star. It has a rotational period of 41 ms and a mildly eccentric…”
Get full text
Journal Article -
8
Tests of General Relativity from Timing the Double Pulsar
Published in Science (American Association for the Advancement of Science) (06-10-2006)“…The double pulsar system PSR J0737-3039A/B is unique in that both neutron stars are detectable as radio pulsars. They are also known to have much higher mean…”
Get full text
Journal Article -
9
Mass Measurements for Two Binary Pulsars Discovered in the PALFA Survey
Published in The Astrophysical journal (20-08-2019)“…In this paper, we present the results of timing observations of PSRs J1949+3106 and J1950+2414, two binary millisecond pulsars (MSPs) discovered in data from…”
Get full text
Journal Article -
10
The NANOGrav 12.5 yr Data Set: Polarimetry and Faraday Rotation Measures from Observations of Millisecond Pulsars with the Green Bank Telescope
Published in The Astrophysical journal (01-02-2022)“…Abstract In this work, we present polarization profiles for 23 millisecond pulsars observed at 820 and 1500 MHz with the Green Bank Telescope as part of the…”
Get full text
Journal Article -
11
THE DOUBLE PULSAR: EVIDENCE FOR NEUTRON STAR FORMATION WITHOUT AN IRON CORE-COLLAPSE SUPERNOVA
Published in The Astrophysical journal (10-04-2013)“…The double pulsar system PSR J0737-3039A/B is a double neutron star binary, with a 2.4 hr orbital period, which has allowed measurement of relativistic orbital…”
Get full text
Journal Article -
12
The Evolution of PSR J0737–3039B and a Model for Relativistic Spin Precession
Published in The Astrophysical journal (01-10-2010)“…We present the evolution of the radio emission from the 2.8 s pulsar of the double pulsar system PSR J0737- 3039A/B. We provide an update on the Burgay et al…”
Get full text
Journal Article -
13
A Precise Mass Measurement of the Intermediate-Mass Binary Pulsar PSR J1802 – 2124
Published in The Astrophysical journal (10-03-2010)“…PSR J1802 - 2124 is a 12.6 ms pulsar in a 16.8 hr binary orbit with a relatively massive white dwarf (WD) companion. These properties make it a member of the…”
Get full text
Journal Article -
14
THE DOUBLE PULSAR ECLIPSES. I. PHENOMENOLOGY AND MULTI-FREQUENCY ANALYSIS
Published in The Astrophysical journal (10-03-2012)“…The double pulsar PSR J0737-3039A/B displays short, 30 s eclipses that arise around conjunction when the radio waves emitted by pulsar A are absorbed as they…”
Get full text
Journal Article -
15
A repeating fast radio burst
Published in Nature (London) (10-03-2016)“…Observations of repeated fast radio bursts, having dispersion measures and sky positions consistent with those of FRB 121102, show that the signals do not…”
Get full text
Journal Article -
16
Erratum: Placing limits on the stochastic gravitational-wave background using European Pulsar Timing Array data
Published in Monthly notices of the Royal Astronomical Society (11-09-2012)“…The paper ‘Placing limits on the stochastic gravitational-wave background using European Pulsar Timing Array data’ was published in Mon. Not. R. Astron. Soc…”
Get full text
Journal Article -
17
Strong-Field Gravity Tests with the Double Pulsar
Published in Physical review. X (01-12-2021)“…Continued timing observations of the double pulsar PSR J0737–3039A/B, which consists of two active radio pulsars (A and B) that orbit each other with a period…”
Get full text
Journal Article -
18
The NANOGrav Nine-year Data Set: Measurement and Analysis of Variations in Dispersion Measures
Published in The Astrophysical journal (01-06-2017)“…We analyze dispersion measure (DM) variations of 37 millisecond pulsars in the nine-year North American Nanohertz Observatory for Gravitational Waves…”
Get full text
Journal Article -
19
PSR J1756−2251: a pulsar with a low-mass neutron star companion
Published in Monthly notices of the Royal Astronomical Society (21-09-2014)“…The pulsar PSR J1756−2251 resides in a relativistic double neutron star binary system with a 7.67-h orbit. We have conducted long-term precision timing on more…”
Get full text
Journal Article -
20
A Second Chromatic Timing Event of Interstellar Origin toward PSR J1713+0747
Published in The Astrophysical journal (10-07-2018)“…The frequency dependence of radio pulse arrival times provides a probe of structures in the intervening media. Demorest et al. was the first to show a…”
Get full text
Journal Article