Research/art/teacher profile of a person
Name and surname:
RNDr. Ján Budaj, DrSc.
Document type:
Research/art/teacher profile of a person
The name of the university:
Comenius University Bratislava
The seat of the university:
Šafárikovo námestie 6, 818 06 Bratislava

I. - Basic information

I.1 - Surname
Budaj
I.2 - Name
Ján
I.3 - Degrees
RNDr., DrSc.
I.4 - Year of birth
1965
I.5 - Name of the workplace
Astronomical Institute SAS, v. v. i.
I.6 - Address of the workplace
Tatranska Lomnica 05960
I.7 - Position
independent researcher, IIa
I.8 - E-mail address
budaj@ta3.sk
I.10 - Name of the study field in which a person works at the university
fyzika / Physics
I.11 - ORCID iD
0000-0002-9125-7340

II. - Higher education and further qualification growth

II.1 - First degree of higher education
II.2 - Second degree of higher education
II.a - Name of the university or institution
Faculty of Mathematics, Physics and Informatics Comenius University
II.b - Year
1989
II.c - Study field and programme
Physics of frontier disciplines
II.3 - Third degree of higher education
II.a - Name of the university or institution
Slovak Academy of Sciences
II.b - Year
1998
II.c - Study field and programme
astrophysics
II.4 - Associate professor
II.5 - Professor
II.6 - Doctor of Science (DrSc.)
II.a - Name of the university or institution
Faculty of Mathematics, Physics and Informatics
II.b - Year
2025
II.c - Study field and programme
astronomy and astrophysics

III. - Current and previous employment

III.a - Occupation-position III.b - Institution III.c - Duration
vedecký pracovník / researcher Astronomický ústav, Slovenská Akadémia Vied / Astronomical Institut, Slovak Academy of Sciences 1990 - súčasnosť / 1990 - present
Research Fellow University College London, UK 1999 - 2000
Research Associate Penn State University, USA 2003 - 2006
Research Associate University of Arizona, USA 2006 - 2007
Research Associate Australian National University, Australia 2013 - 2014

IV. - Development of pedagogical, professional, language, digital and other skills

V. - Overview of activities within the teaching career at the university

V.1 - Overview of the profile courses taught in the current academic year according to study programmes
V.2 - Overview of the responsibility for the delivery, development and quality assurance of the study programme or its part at the university in the current academic year
V.3 - Overview of the responsibility for the development and quality of the field of habilitation procedure and inaugural procedure in the current academic year
V.4 - Overview of supervised final theses
V.4.1 - Number of currently supervised theses
V.4.a - Bachelor's (first degree)
0
V.4.b - Diploma (second degree)
1
V.4.c - Dissertation (third degree)
1
V.4.2 - Number of defended theses
V.4.a - Bachelor's (first degree)
0
V.4.b - Diploma (second degree)
5
V.4.c - Dissertation (third degree)
2
V.5 - Overview of other courses taught in the current academic year according to study programmes
V.5.a - Name of the course V.5.b - Study programme V.5.c - Degree V.5.d - Field of study
Selected problems in astrophysics astronómia a astrofyzika / astronomy and astrophysics II. Physics
Introduction to exoplanets and brown dwarfs astronómia a astrofyzika / astronomy and astrophysics III. Physics

VI. - Overview of the research/artistic/other outputs

VI.1 - Overview of the research/artistic/other outputs and the corresponding citations
VI.1.1 - Number of the research/artistic/other outputs
VI.1.a - Overall
111
VI.1.b - Over the last six years
19
VI.1.2 - Number of the research/artistic/other outputs registered in the Web of Science or Scopus databases
VI.1.a - Overall
74
VI.1.b - Over the last six years
16
VI.1.3 - Number of citations corresponding to the research/artistic/other outputs
VI.1.a - Overall
1440
VI.1.b - Over the last six years
370
VI.1.4 - Number of citations registered in the Web of Science or Scopus databases
VI.1.a - Overall
1350
VI.1.b - Over the last six years
370
VI.1.5 - Number of invited lectures at the international, national level
VI.1.a - Overall
15
VI.1.b - Over the last six years
8
VI.2 - The most significant research/artistic/other outputs
1

Burrows, Hubeny, Budaj, Hubbard, 2007, ApJ 661,502 (WOS citations 270)

2

Burrows, Budaj, Hubeny, 2008, ApJ 678, 1436 (WOS citations 190)

3

Burrown, Hubeny, Budaj, Knutson,Charbonneau, 2007, ApJ 668, L171 (WOS citations 160)

4

Budaj, 2011, AJ 141, 59 (WOS citations 35)

5

Budaj, 2011, AJ 141, 59 (WOS citations 35)

VI.3 - The most significant research/artistic/other outputs over the last six years
1

BUDAJ, Ján - BERNHARD, Klaus - JONES, David - MUNDAY, James. A swarm of dusty objects in orbit around the central star of planetary nebula WeSb1. In Nature Astronomy, 2025, vol. 9, no. 3, p. 380-392. (2024: 14.3 - IF, Q1 - JCR, 4.006 - SJR, Q1 - SJR). ISSN 2397-3366. https://doi.org/10.1038/s41550-024-02446-x

2

KRTIČKA, Jiří** - BENÁČEK, Jan - BUDAJ, Ján - KORČÁKOVÁ, Daniela - PÁL, András - PIECKA, Martin - ZEJDA, Miloslav - BAKIS, Volkan - BROŽ, Miroslav - CHANG, Hsiang-Kuang - FALTOVÁ, Nikola - GÁLIS, Rudolf - JADLOVSKÝ, Daniel - JANÍK, Jan - KÁRA, Jan - KOLÁŘ, Jakub - KRTIČKOVÁ, Iva - KUBÁT, Jiří - KUBÁTOVÁ, Brankica - KURFURST, Petr - LABAJ, Matúš - MERC, Jaroslav - MIKULÁŠEK, Zdeněk - MÜNZ, Filip - PAUNZEN, Ernst - PRIŠEGEN, Michal - RAMEZANI, Tahereh - RIEVAJOVÁ, Tatiana - ŘÍPA, Jakub - SCHMIDTOBREICK, Linda - SKARKA, Marek - SZÁSZ, Gabriel - WEISS, Werner W. - ZAJAČEK, Michal - WERNER, Norbert. Science with a small two-band UV-photometry mission II: Observations of stars and stellar systems. In Space Science Reviews, 2024, vol. 220, no. 2, art. no. 24, pp. 1-34. (2023: 9.1 - IF, Q1 - JCR, 2.485 - SJR, Q1 - SJR). ISSN 0038-6308. https://doi.org/10.1007/s11214-024-01058-1

3

PAUNZEN, Ernst - BERNHARD, Klaus - BUDAJ, Ján - HAMBSCH, Franz-Josef - HÜMMERICH, Stefan - JONES, David - KRTIČKA, Jiří. PM 1-322: New variable planetary nebula. In Astronomy and Astrophysics, 2023, vol. 676, article no. A88, p. 1-10. (2022: 6.5 - IF, Q1 - JCR, 1.999 - SJR, Q1 - SJR, karentované - CCC). (2023 - Current Contents, WOS, SCOPUS, NASA ADS). ISSN 0004-6361. https://doi.org/10.1051/0004-6361/202346162

4

BUDAJ, Ján - MALIUK, Andrii - HUBENY, Ivan. WD 1145+017: Alternative models of the atmosphere, dust clouds, and gas rings. In Astronomy and Astrophysics, 2022, vol. 660, article no. A72, p. 1-14. (2021: 6.240 - IF, Q1 - JCR, 1.918 - SJR, Q1 - SJR, karentované - CCC). (2022 - Current Contents, WOS, SCOPUS, NASA ADS). ISSN 0004-6361. https://doi.org/10.1051/0004-6361/202141924

5

BROŽ, Miroslav - MOURARD, D. - BUDAJ, Ján - HARMANEC, Petr - SCHMITT, Henrique R. - TALLON-BOSC, I. - BONNEAU, D. - BOŽIĆ, Hrvoje - GIES, D. - ŠLECHTA, Miroslav. Optically thin circumstellar medium in the beta Lyr A system. In Astronomy and Astrophysics, 2021, vol. 645, article no. A51, p. 1-19. (2020: 5.802 - IF, Q1 - JCR, 2.137 - SJR, Q1 - SJR, karentované - CCC). (2021 - Current Contents, WOS, SCOPUS, NASA ADS). ISSN 0004-6361. https://doi.org/10.1051/0004-6361/202039035

VI.4 - The most significant citations corresponding to the research/artistic/other outputs
1

BROŽ, Miroslav - MOURARD, D. - BUDAJ, Ján - HARMANEC, Petr - SCHMITT, Henrique R. - TALLON-BOSC, I. - BONNEAU, D. - BOŽIĆ, Hrvoje - GIES, D. - ŠLECHTA, Miroslav. Optically thin circumstellar medium in the beta Lyr A system. In Astronomy and Astrophysics, 2021, vol. 645, article no. A51, p. 1-19. (2020: 5.803 - IF, Q1 - JCR, 2.137 - SJR, Q1 - SJR, karentované - CCC). (2021 - Current Contents, WOS, SCOPUS, NASA ADS). ISSN 0004-6361. https://doi.org/10.1051/0004-6361/202039035

Citation:

1. [1.1] MERC, Jaroslav - BOFFIN, Henri M. J. Unequivocal detection of the tidal deformation of a red giant in a binary system via interferometry. In ASTRONOMY AND ASTROPHYSICS, 2024, vol. 692, article no. A218, p. 1-10. ISSN 0004-6361. WOS

2

BUDAJ, Ján - MALIUK, Andrii - HUBENY, Ivan. WD 1145+017: Alternative models of the atmosphere, dust clouds, and gas rings. In Astronomy and Astrophysics, 2022, vol. 660, article no. A72, p. 1-14. (2021: 6.240 - IF, Q1 - JCR, 1.918 - SJR, Q1 - SJR, karentované - CCC). (2022 - Current Contents, WOS, SCOPUS, NASA ADS). ISSN 0004-6361. https://doi.org/10.1051/0004-6361/202141924

Citation:

1. [1.1] KURBAN, Abdusattar - ZHOU, Xia - WANG, Na - HUANG, Yong-Feng - WANG, Yu-Bin - NURMAMAT, Nurimangul. Partial disruption of a planet around a white dwarf: The effect of perturbations from the remnant planet on the accretion. In ASTROPHYSICAL JOURNAL, 2024, vol. 974, no. 1, article no. 100, p. 1-12. ISSN 0004-637X. https://doi.org/10.3847/1538-4357/ad73d3, WOS

3

KRTIČKA, Jiří - MIKULÁŠEK, Zdeněk - ZVERKO, Juraj - ŽIŽŇOVSKÝ, Jozef. The light variability of the helium strong star HD 37776 as a result of its inhomogeneous elemental surface distribution. In Astronomy and Astrophysics, 2007, vol. 470, p. 1089-1098. (2006: 3.971 - IF, Q1 - JCR, 3.646 - SJR, Q1 - SJR, karentované - CCC). (2007 - Current Contents). ISSN 0004-6361.

Citation:

1. [1.1] PAKHOMOV, Yury - POTRAVNOV, Ilya - ROMANOVSKAYA, Anna - RYABCHIKOVA, Tatiana. Modeling the TESS light curve of Ap Si Star MX TrA. In UNIVERSE, 2024, vol. 10, no. 9, article no. 341, p. 1-12. ISSN 2218-1997. https://doi.org/10.3390/universe10090341,: WOS

4

PAUNZEN, Ernst - BERNHARD, Klaus - BUDAJ, Ján - HAMBSCH, Franz-Josef - HÜMMERICH, Stefan - JONES, David - KRTIČKA, Jiří. PM 1-322: New variable planetary nebula. In Astronomy and Astrophysics, 2023, vol. 676, article no. A88, p. 1-10. (2022: 6.5 - IF, Q1 - JCR, 1.999 - SJR, Q1 - SJR, karentované - CCC). (2023 - Current Contents, WOS, SCOPUS, NASA ADS). ISSN 0004-6361https://doi.org/10.1051/0004-6361/202346162. Citation:

1. [1.1] HRIVNAK, Bruce J. - LU, Wenxian - HENSON, Gary - HILLWIG, Todd C. Variability in protoplanetary nebulae. X. Multiyear periods as an indicator of potential binaries. In ASTRONOMICAL JOURNAL, 2024, vol. 167, no. 1, article no. 30, p. 1-12. ISSN 0004-6256. https://doi.org/10.3847/1538-3881/ad0cc4, WOS

5

VOS, Joris - PELISOLI, Ingrid - BUDAJ, Ján - REINDL, Nicole - SCHAFFENROTH, Veronika - BOBRICK, Alexey - GEIER, Stephan - HERMES, J. J. - NEMETH, Peter - OSTENSEN, Roy - REDING, Joshua S. - UZUNDAG, Murat - VUČKOVIČ, Maja. Looking into the cradle of the grave: J22564-5910, a potential young post-merger hot subdwarf. In Astronomy and Astrophysics, 2021, vol. 655, article no. A43, p. 1-15. (2020: 5.803 - IF, Q1 - JCR, 2.137 - SJR, Q1 - SJR, karentované - CCC). (2021 - Current Contents, WOS, SCOPUS, NASA ADS). ISSN 0004-6361. Dostupné na: https://doi.org/10.1051/0004-6361/202140391. Citation:

1. [1.1] AERTS, Conny - TKACHENKO, Andrew. Asteroseismic modelling of fast rotators and its opportunities for astrophysics. In ASTRONOMY AND ASTROPHYSICS, 2024, vol. 692, article no. R1, p. 1-38. ISSN 0004-6361. https://doi.org/10.1051/0004-6361/202348575, WOS

VI.5 - Participation in conducting (leading) the most important research projects or art projects over the last six years
1

VEGA 2/0031/22 principal investigator (12 researchers)

2

VEGA 2/0031/18 principal investigator (12 researchers)

3

Erasmus+, 2017-1-CZ01-KA203-035562, foreign project (3 countries), principal investigator AU SAS

4

VEGA 2/0143/14, investigator

5

APVV-20-148, investigator

VII. - Overview of organizational experience related to higher education and research/artistic/other activities

VII.a - Activity, position VII.b - Name of the institution, board VII.c - Duration
Erasmus+, 2017-1-CZ01-KA203-035562, foreign student exchange project, project leader at AU SAS Spain, Cech Republic, Slovak Republic, 5 institutions 2017 - 2020
Observational Astrophysics, two summer schools organized jointly one for Erasmus the other for Opticon, hlavný organizátor Erasmus+, Opticon, AsuSAV 17 - 27 June 2019
Observing techniques, instrumentation and science for metre-class telescopes II, Tatranska Lomnica, Slovak R., international conference, memb. SOC AU SAV 24.-28. september 2018
Observing techniques, instrumentation and science for metre-class telescopes I, Tatranska Lomnica, Slovak R. International conf. memb. SOC AU SAV 23.-26. september 2013
IAU Symp. 282, Tatranska Lomnica, member SOC AU SAV July 18-22, 2011

VIII. - Overview of international mobilities and visits oriented on education and research/artistic/other activities in the given field of study

VIII.a - Name of the institution VIII.b - Address of the institution VIII.c - Duration (indicate the duration of stay) VIII.d - Mobility scheme, employment contract, other (describe)
University College London UK 1999 - 2000 Royal Society -- NATO Fellowship
Penn State University USA 2003 - 2004 National Science Foundation -- NATO Postdoctoral Fellowship
Penn State University USA 2004 - 2006 employment contract
University of Arizona USA 2006 - 2007 employment contract
Australian National University Australia 2013 - 2014 employment contract
Masaryk University CZ 2010 - 2010 The Innolec Lectureship in Physics

IX. - Other relevant facts

IX.a - If relevant, other activities related to higher education or research/artistic/other activities are mentioned

Head of the research direction of the AsU SAS: Extrasolar planets and brown dwarfs 2011-2016, 2016-2021, 2 PhD students from abroad, 1 postdoc from abroad, 1 semester of lectures at the UPJŠ

permanent member of the commission for state doctoral examinations and dissertation defenses in the doctoral study program Physics, specializing in Astrophysics, Masaryk University Brno

Date of last update
2026-03-02