jakub ripa _cut

Ripa, Jakub 李佳酷


Distinguished Junior Fellow

Home Institution



Ph.D. in Theoretical Physics, Astronomy and Astrophysics, Faculty of Mathematics and Physics, Charles University in Prague, Czech Republic


R917, Astro-Math Bldg.




+886 233668645

Current Research Interests

UFFO: My research interest is UFFO-pathfinder, which is a space experiment focused on observation of the prompt and early afterglow emission in the uv/optical and gamma-ray range. I am writing a pipeline software for the translation of the telemetry data from this experiment to the FITS files usable by other astronomical data reduction programs. My work also included tests of the gamma detector UBAT of UFFO-pathfinder and testing the on board trigger logic.

GRBs: I am interested in statistical analyses of the properties of the prompt emission of gamma-ray bursts (GRB) such as durations, spectral hardnesses, peak- fluxes, fluences, and spectral lags from the RHESSI, Swift and Fermi satellites. Next interest is a classification of GRBs and their relation to x-ray flashes.

Cosmology: My interest is use of GRBs to study cosmology and the isotropy of the Universe.

Selected Publications

Selected Publications:

- A. Meszaros and J. Ripa, On the Relation Between the Non-Flat Cosmological Models and the Elliptic Integral of First Kind, A&A 573 (2015) A54

- J. Ripa, M. B. Kim, S. Jeong, et al., Testing and Performance of UFFO Burst Alert & Trigger Telescope, Proceedings of Swift: 10 Years of Discovery, held 2-5 December 2014 at La Sapienza University, Rome, Italy, (2015) arXiv:1507.05696 [astro-ph.HE]

- A. Meszaros and J. Ripa, On the Spectral Lags and Peak Counts of the Gamma-Ray Bursts Detected by the RHESSI Satellite, A&A 556 (2013) A13

- J. Ripa, A. Meszaros, P. Veres, and I. H. Park, ApJ 756 (2012) 44

- A. Meszaros, J. Ripa, and F. Ryde, Cosmological Effects on the Observed Flux and Fluence Distributions of Gamma-Ray Bursts: Are the Most Distant Bursts in General the Faintest Ones?, A&A 529 (2011) A55

- D. Huja, A. Meszaros, and J. Ripa, A Comparison of the Gamma-Ray Bursts Detected by BATSE and Swift, A&A 504 (2009) 67

- J. Ripa, A. Meszaros, C. Wigger, et al., Search for Gamma-Ray Burst Classes with the RHESSI Satellite, A&A 498 (2009) 399


I come from the Czech Republic where I finished my Ph.D. in the Charles University in Prague, Faculty of Mathematics and Physics, in 2011. Then I went to Korea for a post-doctoral position in Ewha Womans Univesity, Institute for the Early Universe, where I stayed one year. Then I moved to Sungkyunkwan University in Korea for almost three years for a post-doctoral position in the Institute of Basic Science. In 2015 I moved here to LeCosPA institute of National Taiwan University for another post-doctoral position. In my free time I like to do sport activities, particularly I like to play squash, ride bicycle, hiking, swimming, skiing, running, and I like travelling and discovering different countries.