activity
20172025
most citedTesting General Relativity with geodetic VLBI: what profit from a single, specially designed experiment?

16 citations · 27 across the 9 of their papers we have counts for

collaborators

8 papers

astro-ph.IM2025

NuAncestor: an artificial satellite-borne star for accurate frequency calibration of ground-based EPRV spectrographs

F. Pepe, M. Bugatti, A. Baur +17

The accuracy of state-of-the-art Extreme Precision Radial Velocity (EPRV) spectrographs depends on the access to extremely precise and stable wavelength calibration sources. There…

astro-ph.IM2024★ 1 cited

Optimizing VGOS observations using an SNR-based scheduling approach

Matthias Schartner, Bill Petrachenko, Mike Titus +6

The geodetic and astrometric VLBI community is in the process of upgrading its existing infrastructure with VGOS. The primary objective of VGOS is to substantially boost the number…

physics.geo-ph2024★ 6 cited

Downscaling GRACE-derived ocean bottom pressure anomalies using self-supervised data fusion

Junyang Gou, Lara Börger, Michael Schindelegger +1

The gravimetry measurements from the Gravity Recovery and Climate Experiment (GRACE) and its follow-on (GRACE-FO) satellite mission provide an essential way to monitor changes in o…

astro-ph.IM2023

Evaluating the feasibility of short-integration scans based on the 2022 VGOS-R&D program

Matthias Schartner, Bill Petrachenko, Mike Titus +6

In this work, we report on activities focusing on improving the observation strategy of the Very Long Baseline Interferometry (VLBI) Global Observing System (VGOS). During six dedi…

physics.geo-ph2023★ 3 cited

VGOS VLBI Intensives between MACGO12M and WETTZ13S for the rapid determination of UT1-UTC

Matthias Schartner, Leonid Petrov, Christian Plötz +3

In this work, we present a status update and results of the designated research and development VLBI Intensive program VGOS-INT-S, observed between MACGO12M and WETTZ13S for the ra…

astro-ph.IM2019

Observations of radio sources near the Sun

Oleg Titov, Sebastien Lambert, Benedikt Soja +15

Geodetic Very Long Baseline Interferometry (VLBI) data are capable of measuring the light deflection caused by the gravitational field of the Sun and large planets with high accura…

astro-ph.IM2018★ 16 cited

Testing General Relativity with geodetic VLBI: what profit from a single, specially designed experiment?

Oleg Titov, Anastasiia Girdiuk, Sebastien Lambert +15

Context. We highlight the capabilities of the geodetic VLBI technique to test General relativity in the classical astrometric style, i.e., measuring the deflection of light in the…

astro-ph.IM2017★ 1 cited

Testing of General Relativity with Geodetic VLBI

O. Titov

The geodetic VLBI technique is capable of measuring the Sun's gravity light deflection from distant radio sources around the whole sky. This light deflection is equivalent to the c…