collaborators

5 papers

astro-ph.HE2025

A milliarcsecond localization associates FRB 20190417A with a compact persistent radio source and an extreme magneto-ionic environment

Alexandra M. Moroianu, Shivani Bhandari, Maria R. Drout +38

We report the milliarcsecond localization of a high (1379 pc/cc) dispersion measure (DM) repeating fast radio burst, FRB 20190417A. Combining European VLBI Network detections of fi…

astro-ph.HE2025

A Hyperactive FRB Pinpointed in an SMC-Like Satellite Host Galaxy

M. Bhardwaj, M. P. Snelders, J. W. T. Hessels +24

Precise localizations of fast radio bursts (FRBs) are essential for uncovering their host galaxies and immediate environments. We present the milliarcsecond-precision European VLBI…

astro-ph.HE2025

Revisiting FRB 20121102A: milliarcsecond localisation and a decreasing dispersion measure

M. P. Snelders, J. W. T. Hessels, J. Huang +27

FRB 20121102A is the original repeating fast radio burst (FRB) source and also the first to be localised to milliarcsecond precision using very-long-baseline interferometry (VLBI).…

astro-ph.IM2025

Shared-optical-path VLBI frequency phase transfer from 86 to 258 GHz on an 8600 km baseline: Demonstrated with the APEX and IRAM 30 m telescopes

G. -Y. Zhao, A. L. Roy, J. F. Wagner +24

The receiver N3AR operating at a frequency range between 67 and 116 GHz has been commissioned at the APEX telescope in October 2024. This adds a new low-frequency band for APEX, wi…

astro-ph.IM2025

Spectrum management and the EVN

Benjamin Winkel, Fabio Giovanardi, Michael Lindqvist

In recent years, the utilisation of the radio spectrum has dramatically increased. Digital telecommunication applications, be it terrestrial cell-phone networks or new-space low-ea…