Search Results - "Dolch, T."
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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…”
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PSR J2234+0611: A New Laboratory for Stellar Evolution
Published in The Astrophysical journal (10-01-2019)“…We report the timing results for PSR J2234+0611, a 3.6 ms pulsar in a 32 day, eccentric (e = 0.13) orbit with a helium white dwarf. The precise timing and…”
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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…”
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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…”
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The Green Bank North Celestial Cap Survey. VII. 12 New Pulsar Timing Solutions
Published in The Astrophysical journal (01-02-2023)“…Abstract We present timing solutions for 12 pulsars discovered in the Green Bank North Celestial Cap 350 MHz pulsar survey, including six millisecond pulsars…”
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PULSAR TIMING ERRORS FROM ASYNCHRONOUS MULTI-FREQUENCY SAMPLING OF DISPERSION MEASURE VARIATIONS
Published in The Astrophysical journal (10-03-2015)“…Free electrons in the interstellar medium cause frequency-dependent delays in pulse arrival times due to both scattering and dispersion. Multi-frequency…”
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The Green Bank North Celestial Cap Survey. VIII. 21 New Pulsar Timing Solutions
Published in The Astrophysical journal (01-10-2023)“…Abstract We present timing solutions for 21 pulsars discovered in 350 MHz surveys using the Green Bank Telescope (GBT). All were discovered in the Green Bank…”
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The Green Bank North Celestial Cap Survey. IX. Timing Follow-up for 128 Pulsars
Published in The Astrophysical journal (01-02-2024)“…Abstract The Green Bank North Celestial Cap survey is one of the largest and most sensitive searches for pulsars and transient radio objects. Observations for…”
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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…”
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THE NANOGRAV NINE-YEAR DATA SET: EXCESS NOISE IN MILLISECOND PULSAR ARRIVAL TIMES
Published in The Astrophysical journal (01-01-2017)“…ABSTRACT Gravitational wave (GW) astronomy using a pulsar timing array requires high-quality millisecond pulsars (MSPs), correctable interstellar propagation…”
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The NANOGrav 12.5 yr Data Set: The Frequency Dependence of Pulse Jitter in Precision Millisecond Pulsars
Published in The Astrophysical journal (20-02-2019)“…Low-frequency gravitational-wave experiments require the highest timing precision from an array of the most stable millisecond pulsars. Several known sources…”
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THE NANOGRAV NINE-YEAR DATA SET: NOISE BUDGET FOR PULSAR ARRIVAL TIMES ON INTRADAY TIMESCALES
Published in The Astrophysical journal (10-03-2016)“…ABSTRACT The use of pulsars as astrophysical clocks for gravitational wave (GW) experiments demands the highest possible timing precision. Pulse times of…”
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GRAVITATIONAL WAVES FROM INDIVIDUAL SUPERMASSIVE BLACK HOLE BINARIES IN CIRCULAR ORBITS: LIMITS FROM THE NORTH AMERICAN NANOHERTZ OBSERVATORY FOR GRAVITATIONAL WAVES
Published in The Astrophysical journal (20-10-2014)“…We perform a search for continuous gravitational waves from individual supermassive black hole binaries using robust frequentist and Bayesian techniques. We…”
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On Frequency-dependent Dispersion Measures and Extreme Scattering Events
Published in The Astrophysical journal (01-04-2020)“…Radio emission propagating over an Earth-pulsar line of sight provides a unique probe of the intervening ionized interstellar medium (ISM). Variations in the…”
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The NANOGrav 11 yr Data Set: Solar Wind Sounding through Pulsar Timing
Published in The Astrophysical journal (20-02-2019)“…The North American Nanohertz Observatory for Gravitational Waves (NANOGrav) has observed dozens of millisecond pulsars for over a decade. We have accrued a…”
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The NANOGrav 11-year Data Set: Pulse Profile Variability
Published in The Astrophysical journal (01-12-2018)“…Access to 50 years of data has led to the discovery of pulsar emission and rotation variability on timescales of months and years. Most of this long-term…”
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A 24 HR GLOBAL CAMPAIGN TO ASSESS PRECISION TIMING OF THE MILLISECOND PULSAR J1713+0747
Published in The Astrophysical journal (10-10-2014)“…The radio millisecond pulsar J1713+0747 is regarded as one of the highest-precision clocks in the sky and is regularly timed for the purpose of detecting…”
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TESTING THEORIES OF GRAVITATION USING 21-YEAR TIMING OF PULSAR BINARY J1713+0747
Published in The Astrophysical journal (10-08-2015)“…ABSTRACT We report 21-year timing of one of the most precise pulsars: PSR J1713+0747. Its pulse times of arrival are well modeled by a comprehensive pulsar…”
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Climate change impacts on a sedimentary coast—a regional synthesis from genes to ecosystems
Published in Marine biodiversity (01-08-2024)“…Climate change effects on coastal ecosystems vary on large spatial scales, but can also be highly site dependent at the regional level. The Wadden Sea in the…”
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