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personal data approved: 2021. X. 14.
Personal data
Sándor Frey
name Sándor Frey
name of institution
doctoral school
ELTE Doctoral School of Physics (Supervisor)
Contact details
E-mail address sandor.freygmail.com
phone number +36 1 391-9320
Academic title
scientific degree, title Ph.D.
year degree was obtained 2001
discipline to which degree belongs physics
institution granting the degree Eötvös Loránd University
Employment
2016 - CSFK Konkoly Thege Miklós Csillagászati Intézet
other (not specified) (tudományos főmunkatárs)
Thesis topic supervisor
number of doctoral students supervised until now 1.5
number of students who fulfilled course requirements 0.5
students who obtained their degrees:
completed course requirement:
(50%) Krisztina Perger (PhD) 2020/08  DSP2-ELTE
present PhD students:
Máté Krezinger (PhD) (2024/08)  DSP2-ELTE
  Thesis topic proposals
Research
research area radio astronomy, radio interferometry, extragalactic astronomy, active galactic nuclei, celestial reference frames
research field in which current research is conducted physics
Publications
2020

An Tao, Mohan Prashanth, Zhang Yingkang, Frey Sándor, Yang Jun, Gabányi Krisztina É., Gurvits Leonid I., Paragi Zsolt, Perger Krisztina, Zheng Zhenya: Evolving parsec-scale radio structure in the most distant blazar known, NATURE COMMUNICATIONS 11: (1) 143
type of document: Journal paper/Article
number of independent citations: 9
language: English
URL 
2019

Ghirlanda G., Salafia O. S., Paragi Z., Giroletti M., Yang J., Marcote B., Blanchard J., Agudo I., An T., Bernardini M. G., Beswick R., Branchesi M., Campana S., Casadio C., Chassande-Mottin E., Colpi M., Covino S., D’Avanzo P., D’Elia V., Frey S., Gawronski M., Ghisellini G., Gurvits L. I., Jonker P. G., van Langevelde H. J., Melandri A., Moldon J., Nava L., Perego A., Perez-Torres M. A., Reynolds C., Salvaterra R., Tagliaferri G., Venturi T., Vergani S. D., Zhang M.: Compact radio emission indicates a structured jet was produced by a binary neutron star merger, SCIENCE 363: (6430) pp. 968-971.
type of document:
number of independent citations: 134
language: English
Full text 
2018

Frey S., Titov O., Melnikov A. E., de Vicente P., Shu F.: High-resolution radio imaging of two luminous quasars beyond redshift 4.5, ASTRONOMY & ASTROPHYSICS 618: A68
type of document: Journal paper/Article
number of independent citations: 4
language: English
Full text 
2016

Frey S, Paragi Z, Gabányi K É, An T: Four hot DOGs in the microwave, MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 455: pp. 2058-2065.
type of document: Journal paper/Article
number of independent citations: 5
language: English
Full text 
2016

Gabányi K É, An T, Frey S, Komossa S, Paragi Z, Hong X-Y, Shen Z-Q: Four Dual AGN Candidates Observed with the VLBA, ASTROPHYSICAL JOURNAL 826: 106
type of document: Journal paper/Article
number of independent citations: 10
language: English
Full text 
2014

Deane R P, Paragi Z, Jarvis M J, Coriat M, Bernardi G, Fender R P, Frey S, Heywood I, Klöckner H-R, Grainge K, Rumsey C: A close-pair binary in a distant triple supermassive black hole system, NATURE 511: (7507) pp. 57-60.
type of document: Journal paper/Article
number of independent citations: 67
language: English
Full text 
2000

Fomalont E B, Frey S, Paragi Z, Gurvits L I, Scott W K, Taylor A R, Edwards P G, Hirabayashi H: The VSOP 5 GHz Continuum Survey: The Prelaunch VLBA Observations, ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 131: pp. 95-183.
type of document: Journal paper/Article
number of independent citations: 113
language: English
URL 
2000

Frey S, Gurvits L I, Altschuler D R, Davis M M, Perillat P, Salter C J, Aller M F, Aller H D, Hirabayashi H: Dual-frequency VSOP observations of AO 0235+164, PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 52: pp. 975-982.
type of document: Journal paper/Article
number of independent citations: 17
language: English
URL 
1999

Gurvits L I, Kellermann K I, Frey S: The ”angular size-redshift” relation for compact radio structures in quasars and radio galaxies, ASTRONOMY & ASTROPHYSICS 342: pp. 378-388.
type of document: Journal paper/Article
number of independent citations: 156
language: English
URL 
1997

Frey S, Gurvits L I, Kellermann K I, Schilizzi R T, Pauliny-Toth I I K: High resolution radio imaging of the extremely distant quasars 1251-407, 1351-018, 1354-174 and 1508+572, ASTRONOMY & ASTROPHYSICS 325: pp. 511-515.
type of document: Journal paper/Article
number of independent citations: 18
language: English
URL 
Number of independent citations to these publications:533 
Scientometric data
list of publications and citations
number of scientific publications that meet accreditation criteria:
228
number of scientific publications:
216
monographs and professional books:
0
monographs/books in which chapters/sections were contributed:
0 
scientific publications published abroad that meet the accreditation criteria:
181
publications not in Hungarian, published in Hungary, meeting the accreditation criteria:
10
number of independent citations to scientific publications and creative works:
2120

 
All rights reserved © 2007, Hungarian Doctoral Council. Doctoral Council registration number at commissioner for data protection: 02003/0001. Program version: 2.2358 ( 2017. X. 31. )