List of works by Sandor Frey

A Single Radio Source in the High-redshift Dual AGN LBQS 0302-0019

scholarly article published in March 2018

A close-pair binary in a distant triple supermassive black hole system. ⬇️

scientific article

A compact radio source in the high-redshift soft gamma-ray blazar IGR J12319-0749

scientific article published in January 2013

A short introduction to radio interferometric image reconstruction

A single radio-emitting nucleus in the dual AGN candidate NGC 5515 ⬇️

scientific article

Astrometry of OH/IR stars using 1612 MHz hydroxyl masers. I. Annual parallaxes of WX Psc and OH138.0+7.2 ⬇️

scientific article published in January 2017

Compact radio emission indicates a structured jet was produced by a binary neutron star merger

scientific article

Confirming the 115.5-day periodicity in the X-ray light curve of ULX NGC 5408 X-1

scientific article published in January 2012

Constraining the parameters of the putative supermassive binary black hole in PG 1302–102 from its radio structure ⬇️

scholarly article by Emma Kun et al published 1 October 2015 in Monthly Notices of the Royal Astronomical Society

Contribution of simulated space VLBI to the Chang'E-1 orbit determination and EOPs estimation

Deep Astrometric Standards

Deep Extragalactic VLBI-Optical Survey (DEVOS). I. Pilot MERLIN and VLBI observations

scientific article published in January 2006

Deep Extragalactic VLBI-Optical Survey (DEVOS): First results

scientific article published in January 2005

Deep extragalactic VLBI-optical survey (DEVOS). II. Efficient VLBI detection of SDSS quasars

scientific article published in January 2008

Detection statistics of the RadioAstron AGN survey

scientific article

Dual-frequency VSOP observations of AO 0235+164

scientific article published in January 2000

EVN detection of a compact radio source as a counterpart to Fermi J1418+3541

scientific article

Evolving parsec-scale radio structure in the most distant blazar known

scientific article published on 09 January 2020

Four dual AGN candidates observed with the VLBA ⬇️

scientific article published in January 2016

Four hot DOGs in the microwave ⬇️

scientific article

HESS J1943+213: a non-classical high-frequency-peaked BL Lac object ⬇️

scholarly article

High resolution radio imaging of the extremely distant quasars 1251-407, 1351-018, 1354-174 and 1508+572

scientific article

High-resolution double morphology of the most distant known radio quasar at z = 6.12

scientific article published in January 2008

High-resolution images of five radio quasars at early cosmological epochs

scientific article published in January 2010

High-resolution radio imaging of the most distant radio quasar SDSS J0836+0054

scientific article

Identification of potential weak target radio quasars for ASTRO-G in-beam phase-referencing

Into the central 10 pc of the most distant known radio quasar. VLBI imaging observations of J1429+5447 at z = 6.21

scientific article published in January 2011

Is 3C 287 a precessing radio source?

scientific article published in January 1998

Is 4C+29.48 a {gamma}-ray source?

scholarly article

J0906+6930: a radio-loud quasar in the early Universe ⬇️

scientific article published in January 2017

Kinematics of the compact symmetric object OQ 208 revisited

scholarly article

Mid-infared Light Curve and High-resolution Radio Structure of the Candidate Neutrino Source GB6 J1040+0617

scholarly article

Mid-infrared Variability of the Neutrino Source Blazar TXS 0506+056

scholarly article

Multi-frequency investigation of the parsec- and kilo-parsec-scale radio structures in high-redshift quasar PKS 1402+044

scientific article published in January 2008

MultiView high precision VLBI astrometry at low frequencies ⬇️

On the Doppler boosting in the compact radio jet of the distant blazar J1026+2542 at z = 5.3

scientific article

On the connection of the apparent proper motion and the VLBI structure of compact radio sources

scientific article published in January 2011

On the milliarcsecond scale structural properties of low and high redshift quasars

On the nature of bright compact radio sources at z > 4.5 ⬇️

scientific article published in January 2016

Optical-radio positional offsets for active galactic nuclei

scientific article published in January 2013

Panning for gold, but finding helium: Discovery of the ultra-stripped supernova SN 2019wxt from gravitational-wave follow-up observations

scientific article published in July 2023

Parsec-scale jet properties of the quasar PG 1302-102 ⬇️

scientific article published in January 2016

Precessing Jet in the High-Redshift Blazar J0017+8135

scientific article published in 2016

Probing the active massive black hole candidate in the center of NGC 404 with VLBI ⬇️

scientific article published in January 2014

Radio Properties of the Quasar J1718+4239, the Proposed Source of the Neutrino Event IceCube-201221A

scholarly article

Radio interferometric observations of two core-dominated triple radio sources at z > 3

scientific article published in January 2010

Radio structure of the most distant radio-detected quasar at the 10-mas scale

scientific article published in January 2003

The "angular size - redshift" relation for compact radio structures in quasars and radio galaxies

scholarly article

The VSOP 5 GHz AGN survey. I. Compilation and observations

scientific article published in January 2000

The VSOP 5 GHz Active Galactic Nucleus Survey. II. Data Calibration and Imaging

scientific article

The VSOP 5 GHz Active Galactic Nucleus Survey. III. Imaging Results for the First 102 Sources

scholarly article

The VSOP 5 GHz Active Galactic Nucleus Survey. V. Imaging Results for the Remaining 140 Sources

scientific article

The VSOP 5 GHz continuum survey: the prelaunch VLBA observations

scholarly article

The compact core-jet region of the superluminal quasar 3C 216

scientific article published in January 2000

The evolution of a jet ejection of the ultraluminous X-ray source Holmberg II X-1

scholarly article

The first estimate of radio jet proper motion at z > 5 ⬇️

scientific article published in January 2015

The most compact bright radio-loud AGNs. II. VLBA observations of 10 sources at 43 and 86 GHz

The radio structure of 3C 316, a galaxy with double-peaked narrow optical emission lines

scientific article

The radio structure of the peculiar narrow-line Seyfert 1 galaxy candidate J1100+4421

scientific article

The radio-loud active nucleus in the ``dark lens'' galaxy J1218+2953

scientific article published in January 2010

Two in one? a possible dual radio-emitting nucleus in the quasar SDSS J1425+3231

scientific article published in January 2012

Unveiling recurrent jets of the ULX Holmberg II X-1: evidence for a massive stellar-mass black hole?

scholarly article by D. Cseh et al published 7 January 2014 in Monthly Notices of the Royal Astronomical Society: Letters

VLBI Non-detection of a Candidate Dual AGN in a Galaxy Merger

scientific article published in 2019

VLBI imaging of extremely high redshift quasars at 5 GHz

scientific article

VLBI observation of the newly discovered z = 5.18 quasar SDSS J0131-0321 ⬇️

scientific article published in January 2015

VLBI observations of flared optical quasar CGRaBS J0809+5341 ⬇️

scientific article published in January 2016

VLBI observations of four radio quasars at z > 4: blazars or not? ⬇️

scientific article published in January 2017

VLBI observations of the radio quasar J2228+0110 atz= 5.95 and other field sources in multiple-phase-centre mode ⬇️

scientific article published in Astronomy and Astrophysics

VLBI space observatory programme observation of the quasar PKS 2215+020: a new laboratory for core-jet physics at z=3.572 ⬇️

VSOP monitoring of the compact BL Lac object AO 0235+164

scientific article published in January 2006

Very long baseline interferometry search for the radio counterpart of HESS J1943+213 ⬇️

scientific article

Wide-field observations in the SDSS Stripe 82 with the European VLBI Network

article published in 2013

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