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Peter Fritschel

Researcher at Massachusetts Institute of Technology

Publications -  439
Citations -  88974

Peter Fritschel is an academic researcher from Massachusetts Institute of Technology. The author has contributed to research in topics: LIGO & Gravitational wave. The author has an hindex of 108, co-authored 427 publications receiving 72722 citations. Previous affiliations of Peter Fritschel include California Institute of Technology & University of Nice Sophia Antipolis.

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Constraints on the cosmic expansion history from GWTC-3.

R. Abbott, +1674 more
TL;DR: In this article, the authors used 47 gravitational-wave sources from the Third LIGO-Virgo-KAGRA Gravitational-Wave Transient Catalog (GWTC-3) to estimate the Hubble parameter $H(z), including its current value, the Hubble constant $H_0.
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Approaching the motional ground state of a 10 kg object

C. Whittle, +199 more
TL;DR: In this paper, the center-of-mass motion of a $10$ kg mechanical oscillator in a state with an average phonon occupation of $10.8$ was obtained.
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All-sky search for continuous gravitational waves from isolated neutron stars in the early O3 LIGO data

Richard J. Abbott, +1570 more
- 15 Oct 2021 - 
TL;DR: In this article, an all-sky search for continuous gravitational waves in the frequency band 20-2000 Hz and with a frequency time derivative in the range of $[-1.0, +0.1]\times10^{-8}$ Hz/s.
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Low scatter and ultra-low reflectivity measured in a fused silica window

TL;DR: In this article, the authors measured the reflectivity and optical scattering characteristics at 1064nm of an antireflection coated fused silica window of the type being used in the Advanced LIGO gravitational-wave detectors.
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Upper limits on the strength of periodic gravitational waves from PSR J1939+2134

Benjamin William Allen, +381 more
TL;DR: The first science run of the LIGO and GEO gravitational wave detectors presented the opportunity to test methods of searching for gravitational waves from known pulsars as discussed by the authors, and they presented new direct upper limits on the strength of waves from the pulsar PSR J1939+2134 using two independent analysis methods.