RNDr. Jan Janík, Ph.D.

2026

• A distant brown dwarf coplanar to a warm Jupiter and a hot super-Earth

  JONES Matias I. NAPONIELLO Luca TRIFONOV Trifon BRAHM Rafael PICHIERRI Gabriele ACUNA-AGUIRRE Lorena DE ROSA Robert J. TALA PINTO Marcelo BONOMO Aldo S. MANCINI Luigi SOZZETTI Alessandro REINARZ Yared MORBIDELLI Alessandro ESPINOZA Nestor ROSOTTI Giovanni NIELSEN Eric L. STEFANOV Stefan Y. HENNING Thomas JORDAN Andres EBERHARDT Jan HATZES Artie VANZI Leonardo JANÍK Jan KABATH Petr

  Peer-reviewed scientific article

  NATURE, year: 2026, volume: 654, edition: 8119, DOI

• Flares and superflares on the southern active binary CC Eri

  LEITZINGER M. ODERT P. GREIMEL R. KABATH P. LIPTAK J. GUENTHER E. W. HEINZEL P. GAJDOS P. ORNIK M. WOLLMANN J. SKARKA M. SRBA J. SKODA P. FRYDA J. BRAHM R. VANZI L. JANÍK Jan PINTR P.

  Peer-reviewed scientific article

  MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, year: 2026, volume: 545, edition: 4, DOI

• PLATOSpec first results: Three new transiting warm Jupiters from the WINE survey, TIC 147027702, TIC 245076932, and TIC 87422071

  GAJDOS Pavol BRAHM Rafael ACUNA-AGUIRRE Lorena JONES Matias I. SALINAS Helem LIPTAK Jozef JORDAN Andres HENNING Thomas SRBA Jiri ZD'ARSKA Eva BALKOOVA Zuzana VÍTKOVÁ Michaela JANÍK Jan SKODA Petr ZAK Jiri MEKARNIA Djamel SUAREZ Olga ABE Lyu BELTRAME Matteo TRIAUD Amaury H. M. J. GUILLOT Tristan COLLINS Karen A. BARKAOUI Khalid BOYLE Gavin SUC Vincent ANTONUCCI Luca PINTO Marcelo Tala VOSTRETCOVA Elizaveta EBERHARDT Jan ESPINOZA Nestor MIRELES Ismael PINTR Pavel ROJAS Felipe I. SCHAFFENROTH Veronika VANZI Leo KABATH Petr

  Peer-reviewed scientific article

  ASTRONOMY & ASTROPHYSICS, year: 2026, volume: 708, edition: April, DOI

• PLATOSpec: a precise spectrograph in support of space missions

  KABATH P. SKARKA M. HATZES A. GUENTHER E. VANZI L. BRAHM R. JANÍK Jan PINTR P. GAJDOS P. LIPTAK J. ZAK J. BOFFIN H. M. J. ANTONUCCI L. AVILA G. BALKOOVA Z. BALL M. E. FLORES M. FUENTES A. FUCHS J. GREIMEL R. GAJARDO A. IVANOV V. D. KOHLER J. LEITZINGER M. LUDWIG M. R. MORAVCIK T. NECASEK J. NEUBERT R. J. U. ODERT P. OLGUIN G. PINTO M. Tala ROTH M. REZBA L. SCHAFFENROTH V. SIGWARTH M. SRBA J. SUAREZ A. SKODA P. SUBJAK J. VACLAVIK J. VESELY M. VESELY R. VÍTKOVÁ Michaela WINKLER J. U. ZUMMER M. ZDARSKA E.

  Peer-reviewed scientific article

  MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, year: 2026, volume: 545, edition: 1, DOI

• Study of doubly eclipsing quadruples – I. Methodology and results for 10 Northern sky systems

  KOLÁŘ Jakub PAČKOVÁ Sabina RICHTERKOVÁ Anna ZEJDA Miloslav AUER Reinhold Friedrich DŘEVĚNÝ Radek JANÍK Jan MAŠEK Martin MERLE Thibault OHLÍDAL Prokop PRIBULLA Theodor UHLÁR Milan VIEWEGH Petr VYSKOČIL Jakub

  Peer-reviewed scientific article

  Monthly Notices of the Royal Astronomical Society, year: 2026, volume: 547, edition: 4, DOI

• Unraveling the brown dwarf desert: Four new discoveries and a unifying period-coded picture

  SUBJAK Jan BRAHM Rafael LIPTAK Jozef EBERHARDT Jan TALA PINTO Marcelo CASEWELL Sarah L. HENNING Thomas HESSE Katharine TRIFONOV Trifon JORDAN Andres ROJAS Felipe I. VÍTKOVÁ Michaela SALINAS Helem BOYLE Gavin SUC Vincent ANTONUCCI Luca BERNACKI Krzysztof BRICENO Cesar COLLINS Karen A. FERNANDEZ FERNANDEZ Jorge GILL Samuel JANÍK Jan LAW Nicholas MANN Andrew W. MCCORMAC James POPOWICZ Adam SEBASTIAN Daniel SKARKA Marek VACLAVIK Jan VANZI Leonardo WEST Richard G. WILKIN Francis P. ZIEGLER Carl

  Peer-reviewed scientific article

  ASTRONOMY & ASTROPHYSICS, year: 2026, volume: 709, edition: May, DOI

2025

• PLATOSpec's first results: Planets WASP-35b and TOI-622b are on aligned orbits, and K2-237b is on a polar orbit

  ZAK J. KABATH P. BOFFIN H. M. J. LIPTAK J. SKARKA M. BRAHM R. GAJDOS P. BOCCHIERI A. ITRICH D. VANZI L. PINTR P. JANÍK Jan HATZES A.

  Peer-reviewed scientific article

  ASTRONOMY & ASTROPHYSICS, year: 2025, volume: 702, edition: October, DOI

• Spectroscopic observations of flares and superflares on AU Mic

  ODERT P. LEITZINGER M. GREIMEL R. KABÁTH Petr LIPTAK J. HEINZEL Petr KARJALAINEN R. WOLLMANN J. GUENTHER E. W. SKARKA Marek SRBA J. ŠKODA Petr FRYDA J. BRAHM R. VANZI L. JANÍK Jan

  Peer-reviewed scientific article

  Monthly Notices of the Royal Astronomical Society, year: 2025, volume: 537, edition: 1, DOI

• Two Earth-size Planets and an Earth-size Candidate Transiting the nearby Star HD 101581

  KUNIMOTO Michelle LIN Zifan MILLHOLLAND Sarah VENNER Alexander HINKEL Natalie R SHPORER Avi VANDERBURG Andrew BAILEY Jeremy BRAHM Rafael BURT Jennifer A BUTLER R Paul CARTER Brad CIARDI David R COLLINS Karen A COLLINS Kevin I COLON Knicole D CRANE Jeffrey D DAYLAN Tansu DIAZ Matias R DOTY John P FENG Fabo GUENTHER Eike W HORNER Jonathan HOWELL Steve B JANÍK Jan JONES Hugh R A KABATH Petr KANODIA Shubham LITTLEFIELD Colin OSBORN Hugh P O'TOOLE Simon PAEGERT Martin PINTR Pavel SCHWARZ Richard P SHECTMAN Steve SRDOC Gregor STASSUN Keivan G TESKE Johanna K TWICKEN Joseph D VANZI Leonardo WANG Sharon X WITTENMYER Robert A JENKINS Jon M RICKER George R SEAGER Sara WINN Joshua

  Peer-reviewed scientific article

  Astronomical Journal, year: 2025, volume: 169, edition: 1, DOI

2024

• Apsidal motion and TESS light curves of three southern close eccentric eclipsing binaries: GM Nor, V397 Pup, and PT Vel

  WOLF Marek ZASCHE Petr KARA J. ZEJDA Miloslav JANÍK Jan MAŠEK M. LEHKY M. MERC J. RICHTERKOVÁ Anna HANŽL Dalibor MIKULÁŠEK Zdeněk DE VILLIERS S. N. LIŠKA Jiří

  Peer-reviewed scientific article

  Astronomy and Astrophysics, year: 2024, volume: 690, edition: A231, DOI