Items where Author is "Frey, Sándor"

Article

Frey, Sándor (2024) Fegyvertesztekkel a nagy műholdseregek ellen. HADITECHNIKA, 58 (4). pp. 35-39. ISSN 0230-6891

Frey, Sándor (2024) Mintagyűjtés a Hold túlsó oldalán. HADITECHNIKA, 58 (5). pp. 39-43. ISSN 0230-6891

Kun, Emma and Jaroschewski, Ilja and Ghorbanietemad, Armin and Frey, Sándor and Becker, Tjus Julia and Gabányi, Krisztina Éva (2022) Multimessenger Picture of J1048+7143. ASTROPHYSICAL JOURNAL, 940 (2). ISSN 1538-4357

Frey, Sándor and Gabányi, Krisztina Éva and An, Tao (2022) The Quasar CTD 135 Is Not a Compact Symmetric Object. SYMMETRY, 14 (2). ISSN 2073-8994

Zhang, Yingkang and An, Tao and Frey, Sándor and Gabányi, Krisztina Éva and Sotnikova, Yulia (2022) Radio Jet Proper-motion Analysis of Nine Distant Quasars above Redshift 3.5. ASTROPHYSICAL JOURNAL, 937 (1). ISSN 1538-4357

Krezinger, Máté and Perger, Krisztina and Gabányi, Krisztina Éva and Frey, Sándor and Gurvits, Leonid I. (2022) Radio-loud Quasars above Redshift 4: Very Long Baseline Interferometry (VLBI) Imaging of an Extended Sample. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 260 (2). ISSN 0067-0049

Gabányi, Krisztina Éva and Frey, Sándor and Kun, Emma and Paragi, Zsolt and An, Tao (2022) Searching for the origin of double-peaked broad emission lines in a merging galaxy with the EVN. POS - PROCEEDINGS OF SCIENCE, 399. ISSN 1824-8039

Titov, Oleg and Frey, Sándor and Melnikov, Alexey and Lambert, Sébastien and Shu, Fengchun (2022) Unprecedented change in the position of four radio sources. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 512. pp. 874-883. ISSN 0035-8711

Zhang, Y. and An, T. and Wang, A. and Frey, Sándor and Gurvits, L. I. and Gabányi, Krisztina Éva and Perger, Krisztina (2022) VLBI observations of VIK J2318−3113, a quasar at z = 6.44. ASTRONOMY & ASTROPHYSICS, 662. ISSN 0004-6361

Cao, Hong-Min and Giulia, Migliori and Marcello, Giroletti and Frey, Sándor and Yang, Jun and Gabányi, Krisztina Éva (2022) A long-lived compact jet in the black hole X-ray binary candidate AT2019wey. ASTRONOMY & ASTROPHYSICS, 657. ISSN 0004-6361

Gurvits, Leonid I. and Paragi, Zsolt and Amils, Ricardo I. and van Bemmel, Ilse and Boven, Paul and Frey, Sándor (2022) The science case and challenges of space-borne sub-millimeter interferometry. ACTA ASTRONAUTICA, 196. pp. 314-333. ISSN 0094-5765

Veres, Patrik Milán and Gabányi, Krisztina Éva and Frey, Sándor and Paragi, Zsolt and Kun, Emma (2021) European VLBI Network Observations of the Proposed Dual AGN SDSS J101022.95+141300.9. ASTROPHYSICAL JOURNAL, 922 (2). ISSN 1538-4357

Punsly, Brian and Frey, Sándor and Reynolds, Cormac and Marziani, Paola and Pushkarev, Alexander (2021) The Highly Self-absorbed Blazar PKS 1351-018. ASTROPHYSICAL JOURNAL, 919 (1). ISSN 1538-4357

Zhang, Yingkang and An, Tao and Frey, Sándor and Yang, Xiaolong and Krezinger, Máté (2021) J2102+6015: a young radio source at z = 4.575. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 507 (3). pp. 3736-3744. ISSN 0035-8711

Perger, Krisztina and Frey, Sándor and Schwartz, Daniel A. and Gabányi, Krisztina Éva and Gurvits, Leonid I. and Paragi, Zsolt (2021) Multi-scale Radio and X-Ray Structure of the High-redshift Quasar PMN J0909+0354. ASTROPHYSICAL JOURNAL, 915 (2). ISSN 1538-4357

Gabányi, Krisztina Éva and Frey, Sándor and Perger, Krisztina (2021) Radio emission from dust-obscured galaxies. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 506 (3). pp. 3641-3647. ISSN 0035-8711

Frey, Sándor and Tar, Ingrid and Perger, Krisztina (2021) Three in One: The VLBI Radio View of the X-ray Quasar RX J1456.0+5048. POS - PROCEEDINGS OF SCIENCE, 399. ISSN 1824-8039

Gabányi, Krisztina Éva and Frey, Sándor and An, Tao and Cao, Hongmin and Paragi, Zsolt and Krezinger, Máté and Perger, Krisztina and Mező, György (2021) A small radio galaxy at z=4.026. ASTRONOMISCHE NACHRICHTEN, 342 (9-10). pp. 1092-1096. ISSN 0004-6337

Cao, Hongmin and Frey, Sándor and Gabányi, Krisztina Éva and Giroletti, M. and Ciu, Lang and Yang, Jun and Hong, Xiaoyu and An, Tao (2020) JVLA C-band observation on AT2019wey. The Astronomer's Telegram (13984).

Cheng, X.-P. and An, T. and Frey, Sándor and Hong, X.-Y. and He, X. (2020) Compact Bright Radio-loud AGNs. III. A Large VLBA Survey at 43 GHz. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 247 (2). ISSN 0067-0049

Kovalev, Y.Y. and Kardashev, N.S. and Sokolovsky, K.V. and Voitsik, P.A. and An, T. and Frey, Sándor (2020) Detection statistics of the RadioAstron AGN survey. ADVANCES IN SPACE RESEARCH, 65 (2). pp. 705-711. ISSN 0273-1177

An, Tao and Mohan, Prashanth and Zhang, Yingkang and Frey, Sándor and Yang, Jun and Gabányi, Krisztina Éva and Gurvits, Leonid I. and Paragi, Zsolt and Perger, Krisztina and Zheng, Zhenya (2020) Evolving parsec-scale radio structure in the most distant blazar known. NATURE COMMUNICATIONS, 11. p. 143. ISSN 2041-1723

An, Tao and Mohan, Prashanth and Zhang, Yingkang and Frey, Sándor and Yang, Jun and Gabányi, Krisztina Éva and Perger, Krisztina (2020) Evolving parsec-scale radio structure in the most distant blazar known. NATURE COMMUNICATIONS, 11 (1). ISSN 2041-1723

Zhang, Yingkang and An, Tao and Frey, Sándor (2020) Fast jet proper motion discovered in a blazar at z = 4.72. SCIENCE BULLETIN, 65 (7). pp. 525-530. ISSN 2095-9273

Krezinger, Máté and Frey, Sándor and Paragi, Zsolt and Deane, Roger (2020) High-Resolution Radio Observations of Five Optically Selected Type 2 Quasars. SYMMETRY, 12 (4). ISSN 2073-8994

Krezinger, Máté and Frey, Sándor and An Tao, Tao and Jaiswal, Sumit and Zhang, Yingkang (2020) J1110+4817 – a compact symmetric object candidate revisited. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 496 (2). pp. 1811-1818. ISSN 0035-8711

Veres, Patrik Milán and Gabányi, Krisztina Éva and Frey, Sándor (2020) Very Long Baseline Interferometry Observations of the Proposed Radio Counterpart of an EGRET Source. SYMMETRY, 12. ISSN 2073-8994

Veres, Patrik Milán and Gabányi, Krisztina Éva and Frey, Sándor (2020) Very Long Baseline Interferometry Observations of the Proposed Radio Counterpart of an EGRET Source. SYMMETRY, 12 (9). ISSN 2073-8994

An, Tao and Zhang, Yingkang and Frey, Sándor (2020) A method for checking high-redshift identification of radio AGNs. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 497 (2). pp. 2260-2264. ISSN 0035-8711

Yang, Jun and Gurvits, Leonid I. and Paragi, Zsolt and Frey, Sándor and Conway, John E. (2020) A parsec-scale radio jet launched by the central intermediate-mass black hole in the dwarf galaxy SDSS J090613.77+561015.2. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY: LETTERS, 495 (1). L71-L75. ISSN 1745-3925

Kun, Emma and Frey, Sándor and Gabányi, Krisztina Éva (2020) A self-lensing supermassive binary black hole at radio frequencies: the story of Spikey continues. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 496. pp. 3336-3347. ISSN 0035-8711

Kun, Emma and Frey, Sándor and Gabányi, Krisztina Éva (2020) A self-lensing supermassive binary black hole at radio frequencies: the story of Spikey continues. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 496 (3). pp. 3336-3347. ISSN 0035-8711

Ghirlanda, G. and Salafia, O. S. and Paragi, Z. and Giroletti, M. and Yang, J. and Frey, Sándor (2019) Compact radio emission indicates a structured jet was produced by a binary neutron star merger. SCIENCE, 363 (6430). pp. 968-971. ISSN 0036-8075

Perger, Krisztina and Frey, Sándor and Gabányi, Krisztina Éva (2019) Is There a Blazar Nested in the Core of the Radio Galaxy 3C 411? The Astrophysical Journal. ISSN 0004-637X

Perger, Krisztina and Frey, Sándor and Gabányi, Krisztina Éva (2019) Is There a Blazar Nested in the Core of the Radio Galaxy 3C411? ASTROPHYSICAL JOURNAL, 873 (1). ISSN 0004-637X

Jaiswal, Sumit and Mohan, Prashanth and An, Tao and Frey, Sándor (2019) Jet-powered Outflows in Supermassive Black Hole Binary Candidate SDSS J1048+0055. ASTROPHYSICAL JOURNAL, 873 (1). ISSN 1538-4357

Perger, Krisztina and Frey, Sándor and Gabányi, Krisztina Éva and Tóth, László Viktor (2019) Unveiling the weak radio quasar population at z ≥ 4. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 490 (2). pp. 2542-2549. ISSN 0035-8711

Perger, Krisztina and Frey, Sándor and Gabányi, Krisztina Éva and Tóth, L. Viktor (2019) Unveiling the weak radio quasar population at z≥4. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 490. pp. 2542-2549. ISSN 0035-8711

Frey, Sándor and Lena, Davide and Jonker, Peter G. and Gabányi, Krisztina É. and Paragi, Zsolt (2019) VLBI Non-detection of a Candidate Dual AGN in a Galaxy Merger. RESEARCH NOTES OF THE AMERICAN ASTRONOMICAL SOCIETY, 3 (1). pp. 1-6. ISSN 2515-5172

Gabányi, Krisztina Éva and Frey, Sándor and Satyapal, Shobita and Constantin, Anca and Pfeifle, R. W. (2019) Very long baseline interferometry observation of the triple AGN candidate J0849+1114. Astronomy & Astrophysics, 630. ISSN 0004-6361

Gabányi, Krisztina Éva and Frey, Sándor and Satyapal, S. and Constantin, A. and Pfeifle, R. W. (2019) Very long baseline interferometry observation of the triple AGN candidate J0849+1114. ASTRONOMY & ASTROPHYSICS, 630. ISSN 0004-6361

Cao, Hong-Min and Frey, Sándor and Gabányi, Krisztina É and Yang, Jun and Cui, Lang and Hong, Xiao-Yu and An, Tao (2019) The loud and the quiet: searching for radio counterparts of two radio-weak BL Lac candidates with VLBI. Monthly Notices of the Royal Astronomical Society: Letters, 482 (1). L34-L39. ISSN 1745-3925

Cao, Hong-Min and Frey, Sándor and Gabányi, Krisztina Éva and Yang, Jun and Cui, Lang (2019) The loud and the quiet: searching for radio counterparts of two radio-weak BL Lac candidates with VLBI. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY: LETTERS, 482 (1). L34-L39. ISSN 1745-3925

De Rosa, A. and Vignali, C. and Bogdanovic, T. and Capelo, P. R. and Charisi, M. and Dotti, M. and Husemann, B. and Lusso, E. and Mayer, L. and Paragi, Z. and Runnoe, J. and Sesana, A. and Steinborn, L. and Bianchi, S. and Colpi, M. and del Valle, L. and Frey, Sándor and Gabányi, Krisztina Éva and Giustini, M. and Guainazzi, M. and Haiman, Z. and Herrera Ruiz, N. and Herrero-Illana, R. and Iwasawa, K. and Komossa, S. and Lena, D. and Loiseau, N. and Perez-Torres, M. and Piconcelli, E. and Volonteri, M. (2019) The quest for dual and binary supermassive black holes: A multi-messenger view. New Astronomy Reviews, 86. ISSN 1387-6473

De Rosa, Alessandra and Vignali, Cristian and Bogdanović, Tamara and Capelo, Pedro R. and Charisi, Maria and Frey, Sándor and Gabányi, Krisztina Éva (2019) The quest for dual and binary supermassive black holes: A multi-messenger view. NEW ASTRONOMY REVIEWS, 86. ISSN 1387-6473

Gabányi, Krisztina Éva and Frey, Sándor and Veres, P. and Moór, Attila (2019) The rare extended radio-loud narrow-line Seyfert 1 galaxy SDSS J1030+5516 at high resolution. ASTROPHYSICS AND SPACE SCIENCE, 364 (4). ISSN 0004-640X

Perger, Krisztina and Frey, Sándor and Gabányi, Krisztina Éva and An, Tao and Britzen, Silke (2018) Constraining the radio jet proper motion of the high-redshift quasar J2134-0419 at z = 4.3. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 477. pp. 1065-1070. ISSN 0035-8711

Gabányi, Krisztina Éva and Frey, Sándor and Gurvits, Leonid I. and Paragi, Zsolt and Perger, Krisztina (2018) High-resolution Radio Image of a Candidate Radio Galaxy at z = 5.72. Research Notes of the AAS, 2 (4). p. 200. ISSN 2515-5172

Gabányi, Krisztina Éva and Frey, Sándor and Gurvits, Leonid I. and Paragi, Zsolt and Perger, Krisztina (2018) High-resolution Radio Image of a Candidate Radio Galaxy at z = 5.72. RESEARCH NOTES OF THE AMERICAN ASTRONOMICAL SOCIETY, 2 (4). ISSN 2515-5172

Frey, Sándor and Titov, O. and Melnikov, A. E. and de Vicente, P. and Shu, F. (2018) High-resolution radio imaging of two luminous quasars beyond redshift 4.5. ASTRONOMY & ASTROPHYSICS, 618. ISSN 0004-6361

Gabányi, Krisztina Éva and Moór, Attila and Frey, Sándor (2018) Infrared variability of radio-loud narrow-line Seyfert 1 galaxies. POS - PROCEEDINGS OF SCIENCE, NLS1-2. 042. ISSN 1824-8039

Gabányi, Krisztina Éva and Frey, Sándor and An, T. (2018) Is 4C+29.48 a γ-ray source? ASTRONOMY & ASTROPHYSICS, 612. A109. ISSN 0004-6361

Gabányi, Krisztina Éva and Moór, Attila and Frey, Sándor (2018) Mid-infrared Variability of the Neutrino Source Blazar TXS 0506+056. RESEARCH NOTES OF THE AMERICAN ASTRONOMICAL SOCIETY, 2 (3). p. 130.

Cheng, X.-P. and An, T. and Hong, X.-Y. and Yang, J. and Mohan, P. and Frey, Sándor (2018) The Most Compact Bright Radio-loud AGNs. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 234 (1). ISSN 0067-0049

Frey, Sándor and Gabányi, Krisztina Éva (2018) A Single Radio Source in the High-redshift Dual AGN LBQS 0302-0019. RESEARCH NOTES OF THE AMERICAN ASTRONOMICAL SOCIETY, 2 (1). p. 49.

An, T. and Mohan, P. and Frey, Sándor (2018) VLBI Studies of DAGN and SMBHB Hosting Galaxies. RADIO SCIENCE, 53 (10). pp. 1211-1217. ISSN 0048-6604

Gabányi, Krisztina Éva and Frey, Sándor and Paragi, Zs. and Järvelä, E. and Morokuma, T. (2018) The radio structure of the peculiar narrow-line Seyfert 1 galaxy candidate J1100+4421. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 473 (2). pp. 1554-1561. ISSN 0035-8711

Orosz, G. and Imai, H. and Dodson, R. and Rioja, M. J. and Frey, Sándor (2017) Astrometry of OH/IR Stars Using 1612 MHz Hydroxyl Masers. I. Annual Parallaxes of WX Psc and OH138.0+7.2. ASTRONOMICAL JOURNAL, 153 (3). ISSN 0004-6256

Zhang, Y. and An, T. and Frey, Sándor and Gabányi, Krisztina Éva and Paragi, Z. (2017) J0906+6930: a radio-loud quasar in the early Universe. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 468. pp. 69-76. ISSN 0035-8711

Abbott, B. P. and Abbott, R. and Abbott, T. D. and Acernese, F. and Ackley, K. and Bécsy, Bence and Dálya, Gergely and Frei, Zsolt and Gergely, Árpád László and Raffai, Péter and Tápai, Márton and Vasúth, Mátyás Zsolt and Veres, Péter and Frey, Sándor (2017) Multi-messenger Observations of a Binary Neutron Star Merger. ASTROPHYSICAL JOURNAL LETTERS, 848 (2). ISSN 2041-8205

Rioja, M. J. and Dodson, R. and Orosz, G. and Imai, H. and Frey, Sándor (2017) MultiView High Precision VLBI Astrometry at Low Frequencies. ASTRONOMICAL JOURNAL, 153. ISSN 0004-6256

Rozgonyi, K. and Frey, Sándor (2017) Open our eyes to wider fields in VLBI surveys. PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION, 12 (S324). pp. 247-248. ISSN 1743-9213

Coppejans, R. and van Velzen, S. and Intema, H. T. and Müller, C. and Frey, Sándor and Gabányi, Krisztina Éva (2017) Radio spectra of bright compact sources at z>4.5. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 467 (2). pp. 2039-2060. ISSN 0035-8711

Gabányi, Krisztina Éva and Frey, Sándor and Paragi, Z. and An, T. and Komossa, S. (2017) Searching for a pair of accreting supermassive black holes in J1425+3231. PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION, 12 (S324). pp. 223-226. ISSN 1743-9213

Cao, H.-M. and Frey, Sándor and Gabányi, Krisztina Éva and Paragi, Z. and Yang, J. (2017) VLBI observations of four radio quasars at z>4: blazars or not? MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 467. pp. 950-960. ISSN 0035-8711

Gabányi, Krisztina Éva and An, T. and Frey, Sándor and Komossa, S. and Paragi, Z. (2016) Four Dual AGN Candidates Observed with the VLBA. ASTROPHYSICAL JOURNAL, 826. ISSN 1538-4357

Frey, Sándor and Paragi, Z. and Gabányi, Krisztina Éva and An, T. (2016) Four hot DOGs in the microwave. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 455. pp. 2058-2065. ISSN 0035-8711

Straal, S. M. and Gabányi, Krisztina Éva and van Leeuwen, J. and Clarke, T. E. and Dubner, G. and Frey, Sándor (2016) HESS J1943+213: A Non-classical High-frequency-peaked BL Lac Object. ASTROPHYSICAL JOURNAL, 822. ISSN 1538-4357

Coppejans, R. and Frey, Sándor and Cseh, D. and Müller, C. and Paragi, Z. and Gabányi, Krisztina Éva (2016) On the nature of bright compact radio sources at z>4.5. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 463. pp. 3260-3275. ISSN 0035-8711

Mohan, P. and An, T. and Frey, Sándor and Mangalam, A. and Gabányi, Krisztina Éva and Kun, Emma (2016) Parsec-scale jet properties of the quasar PG 1302-102. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 463. pp. 1812-1821. ISSN 0035-8711

Rozgonyi, K. and Frey, Sándor (2016) Precessing Jet in the High-Redshift Blazar J0017+8135. GALAXIES, 4 (3). ISSN 2075-4434

An, T. and Cui, Y -Z. and Gabányi, Krisztina Éva and Frey, Sándor and Baan, W. A. (2016) Radio properties of the γ-ray emitting CSO candidate 2234+282. ASTRONOMISCHE NACHRICHTEN, 337. pp. 65-68. ISSN 0004-6337

An, T. and Cui, Y-Z. and Paragi, Z. and Frey, Sándor and Gurvits, L. I. and Gabányi, Krisztina Éva (2016) VLBI observations of flared optical quasar CGRaBS J0809+5341. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN, 68 (5). ISSN 0004-6264

Coppejans, R. and Cseh, D. and van Velzen, S. and Falcke, H. and Intema, H. T. and Frey, Sándor (2016) What are the megahertz peaked-spectrum sources? MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 459. pp. 2455-2471. ISSN 0035-8711

Kun, Emma and Frey, Sándor and Gabányi, Krisztina Éva and Britzen, S. and Cseh, D. and Gergely, Árpád László (2015) Constraining the parameters of the putative supermassive binary black hole in PG 1302-102 from its radio structure. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 454 (2). pp. 1290-1296. ISSN 0035-8711

Frey, Sándor and Paragi, Z. and Gabányi, Krisztina Éva and An, T. (2015) Four hot DOGs eaten up with the EVN. POS - PROCEEDINGS OF SCIENCE. ISSN 1824-8039

Gurvits, L. I. and Frey, Sándor and Paragi, Z. (2015) Jets in AGN at extremely high redshifts. PROCEEDINGS OF THE INTERNATIONAL ASTRONOMICAL UNION, 10 (S313). pp. 327-328. ISSN 1743-9213

Deane, R. and Paragi, Z. and Jarvis, M. and Coriat, M. and Bernardi, G. and Frey, Sándor (2015) Multiple supermassive black hole systems: SKA's future leading role. POS - PROCEEDINGS OF SCIENCE, AASKA1. ISSN 1824-8039

Gabányi, Krisztina Éva and Cseh, D. and Frey, Sándor and Paragi, Z. and Gurvits, L. I. (2015) VLBI observation of the newly discovered z=5.18 quasar SDSS J0131-0321. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY: LETTERS, 450 (1). L57-L60. ISSN 1745-3925

Paragi, Z. and Godfrey, L. and Reynolds, C. and Rioja, M. and Deller, A. and Frey, Sándor and Gabányi, Krisztina Éva (2015) Very Long Baseline Interferometry with the SKA. POS - PROCEEDINGS OF SCIENCE, AASKA1. ISSN 1824-8039

Gabányi, Krisztina Éva and Dubner, G. and Giacani, E. and Frey, Sándor and Paragi, Z. (2015) e-MERLIN observations of the puzzling TeV source HESS J1943+213. POS - PROCEEDINGS OF SCIENCE, EVN 20. ISSN 1824-8039

Cseh, D. and Miller-Jones, J. C. A. and Jonker, P. G. and Grisé, F. and Paragi, Z. and Frey, Sándor (2015) The evolution of a jet ejection of the ultraluminous X-ray source Holmberg II X-1. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 452. pp. 24-31. ISSN 0035-8711

Frey, Sándor and Paragi, Z. and Fogasy, Olimpia Judit and Gurvits, L. I. (2015) The first estimate of radio jet proper motion at z>5. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 446. pp. 2921-2928. ISSN 0035-8711

Paragi, Z. and Frey, Sándor and Kaaret, P. and Cseh, D. and Overzier, R. and Kharb, P. (2014) Probing the Active Massive Black Hole Candidate in the Center of NGC 404 with VLBI. ASTROPHYSICAL JOURNAL, 791. ISSN 1538-4357

Cseh, D. and Kaaret, P. and Corbel, S. and Grisé, F. and Lang, C. and Körding, E. and Falcke, H. and Jonker, P. G. and Miller-Jones, J. C. A. and Farrell, S. and Yang, Y. J. and Paragi, Z. and Frey, Sándor (2014) Unveiling recurrent jets of the ULX Holmberg II X-1: evidence for a massive stellar-mass black hole? MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY: LETTERS, 439 (1). L1-L5. ISSN 1745-3925

Cao, H. -M. and Frey, Sándor and Gurvits, L. I. and Yang, J. and Hong, X. -Y. and Paragi, Z. and Deller, A. T. and Ivezić, Ž. (2014) VLBI observations of the radio quasar J2228+0110 at z=5.95 and other field sources in multiple-phase-centre mode. ASTRONOMY & ASTROPHYSICS, 563. ISSN 0004-6361

Deane, R. P. and Paragi, Z. and Jarvis, M. J. and Coriat, M. and Bernardi, G. and Fender, R. P. and Frey, Sándor and Heywood, I. and Klöckner, H. -R. and Grainge, K. and Rumsey, C. (2014) A close-pair binary in a distant triple supermassive black hole system. NATURE, 511 (7507). pp. 57-60. ISSN 0028-0836

An, T. and Wu, X. and Frey, Sándor (2014) The most compact bright radio-loud AGN : I. A new target sample selected for the space VLBI. ASTROPHYSICS AND SPACE SCIENCE, 352. pp. 825-832. ISSN 0004-640X

Gabányi, Krisztina Éva and Frey, Sándor and Xiao, T. and Paragi, Z. and An, T. and Kun, Emma and Gergely, Árpád László (2014) A single radio-emitting nucleus in the dual AGN candidate NGC 5515. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 443 (2). pp. 1509-1514. ISSN 0035-8711

Wu, F. and An, T. and Baan, W. A. and Hong, X. -Y. and Stanghellini, C. and Frey, Sándor and Xu, H. -G. and Liu, X. and Wang, J. -Y. (2013) Kinematics of the compact symmetric object OQ 208 revisited. ASTRONOMY & ASTROPHYSICS, 550. ISSN 0004-6361

Frey, Sándor and Fogasy, Olimpia Judit and Paragi, Z. and Gurvits, L. I. (2013) On the Doppler boosting in the compact radio jet of the distant blazar J1026+2542 at z = 5.3. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 431. pp. 1314-1319. ISSN 0035-8711

Orosz, Gábor and Frey, Sándor (2013) Optical-radio positional offsets for active galactic nuclei. ASTRONOMY & ASTROPHYSICS, 553. ISSN 0004-6361

Frey, Sándor and Paragi, Z. and Gabányi, Krisztina Éva and An, T. (2013) A compact radio source in the high-redshift soft gamma-ray blazar IGR J12319–0749. ASTRONOMY & ASTROPHYSICS, 552. ISSN 0004-6361

An, T. and Paragi, Z. and Frey, Sándor and Xiao, T. and Baan, W. A. and Komossa, S. and Gabányi, Krisztina Éva and Xu, Y. -H. and Hong, X. -Y. (2013) The radio structure of 3C 316, a galaxy with double-peaked narrow optical emission lines. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 433. pp. 1161-1171. ISSN 0035-8711

Frey, Sándor and Moór, A. (2009) „Pontállandósítás” az égen - milyen kvazárok alkalmasak az égi vonatkoztatási rendszer kijelölésére? GEOMATIKAI KÖZLEMÉNYEK, 12. pp. 163-168. ISSN 1419-6492

Monograph

Frey, Sándor and Paragi, Zsolt and Szentirmayné Gabányi, Krisztina Éva (2012) Kompakt extragalaktikus objektumok vizsgálata rádió-interferométeres technikával = Radio interferometric studies of compact extragalactic objects. Project Report. OTKA.

Frey, Sándor and Mosoni, László and Paragi, Zsolt (2008) Halvány égi rádióforrások szerkezetének nagy felbontású térképezése = High resolution imaging of weak celestial radio sources. Project Report. OTKA.

Conference or Workshop Item

Perger, Krisztina and Frey, Sándor and Gabányi, Krisztina Éva (2020) A jet proper motion study in the early Universe. In: Perseus in Sicily: From Black Hole to Cluster Outskirts, 2018. május 13-18, Noto, Olaszország.

Frey, Sándor and Gabányi, Krisztina Éva (2010) Nagy szögfelbontású rádió-interferometria - űreszközökkel. In: Űrcsillagászat Magyarországon, 2009.10.19, ELTE.