Results 11 to 20 of about 11,945,723 (183)

Long-Baseline Atom Interferometry [PDF]

open access: yes
Long-baseline atom interferometry is a promising technique for probing various aspects of fundamental physics, astrophysics and cosmology, including searches for ultralight dark matter (ULDM) and for gravitational waves (GWs) in the frequency range ...
Stergioulas, Nikolaos   +51 more
core   +8 more sources

2nd Terrestrial Very-Long-Baseline Atom Interferometry Workshop (TVLBAI 2024) [PDF]

open access: yes
This summary of the second Terrestrial Very-Long-Baseline Atom Interferometry (TVLBAI) Workshop provides a comprehensive overview of our meeting held in London in April 2024 (Second Terrestrial Very-Long-Baseline Atom Interferometry Workshop, Imperial ...
Julia Pahl   +946 more
core   +12 more sources

Terrestrial very-long-baseline atom interferometry: summary of the second workshop [PDF]

open access: yes
This summary of the second Terrestrial Very-Long-Baseline Atom Interferometry (TVLBAI) Workshop provides a comprehensive overview of our meeting held in London in April 2024 (Second Terrestrial Very-Long-Baseline Atom Interferometry Workshop, Imperial ...
Clara Bigard (21004763)   +308 more
core   +4 more sources

A Coherent Optical Fiber Link for Very Long Baseline Interferometry [PDF]

open access: yes, 2020
We realize a phase-stabilised optical fiber backbone that connects the Italian National Metrology Institute with two radio telescopes over a 600 km baseline.
MACCAFERRI, Giuseppe   +16 more
core   +1 more source

Horizonless Spacetimes As Seen by Present and Next-generation Event Horizon Telescope Arrays

open access: yesThe Astrophysical Journal, 2023
We study the capabilities of present and future radio very long baseline interferometry arrays to distinguish black holes from horizonless spacetimes. We consider an example of a horizonless spacetime, obtained by overspinning a regular black hole.
Astrid Eichhorn, Roman Gold, Aaron Held
doaj   +1 more source

Key Science Goals for the Next-Generation Event Horizon Telescope

open access: yesGalaxies, 2023
The Event Horizon Telescope (EHT) has led to the first images of a supermassive black hole, revealing the central compact objects in the elliptical galaxy M87 and the Milky Way.
Michael D. Johnson   +44 more
doaj   +1 more source

Demonstrating Photon Ring Existence with Single-baseline Polarimetry

open access: yesThe Astrophysical Journal Letters, 2023
Images of supermassive black hole accretion flows contain features of both curved spacetime and plasma structure. Inferring properties of the spacetime from images requires modeling the plasma properties, and vice versa.
Daniel C. M. Palumbo   +3 more
doaj   +1 more source

Terrestrial very-long-baseline atom interferometry: Workshop summary

open access: yes
This document presents a summary of the 2023 Terrestrial Very-Long-Baseline Atom Interferometry Workshop hosted by CERN. The workshop brought together experts from around the world to discuss the exciting developments in large-scale atom interferometer ...
Giese, Enno   +2 more
core   +2 more sources

Modeling Atmospheric Phase Corruptions in High-frequency Very-long-baseline Interferometry Using Gaussian Processes

open access: yesThe Astronomical Journal
Using very-long-baseline interferometry (VLBI) observations at (sub)millimeter wavelengths, the Event Horizon Telescope (EHT) currently achieves the finest angular resolution of any astronomical facility, necessary for imaging the horizon-scale structure
Uri Rolls   +5 more
doaj   +1 more source

Evaluation of VLBI Observations with Sensitivity and Robustness Analyses

open access: yesMathematics, 2020
Very Long Baseline Interferometry (VLBI) plays an indispensable role in the realization of global terrestrial and celestial reference frames and in the determination of the full set of the Earth Orientation Parameters (EOP).
Pakize Küreç Nehbit   +8 more
doaj   +1 more source

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