Sciences and Exploration Directorate

PETR POKORNY

(RESEARCH ASSOCIATE)

 petr.pokorny@nasa.gov

 301.286.3668

Org Code: 667

NASA/GSFC
Mail Code: 667
Greenbelt, MD 20771

Employer: CATHOLIC UNIV OF AMERICA

Positions/Employment


Research Scholar

The Catholic University of America - Washington, DC, USA

September 2016 - Present


Postdoctoral Research Fellow

University of Western Ontario - London, ON, Canada

October 2014 - August 2016

Education


2010 – 2014 Charles University in Prague PhD in Theoretical physics and astronomy and astrophysics
Thesis title: Dynamics of small bodies in the Solar System: from dust particles to asteroids
Supervisor: David Vokrouhlický

2008 – 2010 Charles University in Prague MSc in Astronomy and Astrophysics
Thesis title: Recent asteroid breakups and accretion of interplanetary dust on the Earth
Supervisor: David Vokrouhlický

2005 – 2008 Charles University in Prague BSc in Physics
Thesis title: Irregular satellites of giant planets
Supervisor: David Vokrouhlický

Publications


Refereed

Carrillo Sanchez, J., D. Janches, J. M. Plane, et al. P. Pokorny, M. Sarantos, M. M. Crismani, W. Feng, and D. R. Marsh. 2022. A Modeling Study of the Seasonal, Latitudinal, and Temporal Distribution of the Meteoroid Mass Input at Mars: Constraining the Deposition of Meteoric Ablated Metals in the Upper Atmosphere The Planetary Science Journal 3 (239): 29 [https://doi.org/10.3847/PSJ/ac8540]

Boyd, P. T., E. L. Wilson, A. P. Smale, et al. P. Supsinskas, T. A. Livengood, T. Hewagama, G. L. Villanueva, A. Marshak, N. A. Krotkov, P. Pokorny, J. Bixler, J. D. Noland, G. Ramu, P. Cleveland, J. Ganino, M. Jhabvala, E. Quintana, E. Gilbert, K. Colón, G. N. Arney, S. D. Domagal-Goldman, A. Mandell, T. Barclay, M. Kuchner, and L. Ott. 2022. EarthShine: Observing our world as an exoplanet from the surface of the Moon Journal of Astronomical Telescopes, Instruments, and Systems 8 (01): 014003 [10.1117/1.jatis.8.1.014003]

Pokorny, P., E. Mazarico, and N. Schörghofer. 2021. Erosion of volatiles by micro-meteoroid bombardment on Ceres, and comparison to the Moon and Mercury Planetary Science Journal 2 85 [10.3847/PSJ/abef04]

Janches, D., J. S. Bruzzone, P. Pokorný, et al. J. D. Carrillo-Sanchez, M. Sarantos, and J. Carrillo Sanchez. 2020. A Comparative Modeling Study of the Seasonal, Temporal, and Spatial Distribution of Meteoroids in the Upper Atmospheres of Venus, Earth, and Mars The Planetary Science Journal 1 (3): 59 [10.3847/psj/abba35]

Pokorny, P., M. Sarantos, D. Janches, and E. Mazarico. 2020. Meteoroid Bombardment of Lunar Poles Astrophysical Journal 894 (2): [https://doi.org/10.3847/1538-4357/ab83ee]

Carrillo Sanchez, J., J. C. Gómez-Martín, D. L. Bones, et al. D. Nesvorný, P. Pokorný, M. Benna, G. J. Flynn, and J. M. Plane. 2019. Cosmic dust fluxes in the atmospheres of Earth, Mars, and Venus Icarus 335 113395 [10.1016/j.icarus.2019.113395]

Swarnalingam, N., D. Janches, J. Carrillo Sanchez, et al. P. Pokorny, J. M. Plane, Z. Sternovsky, and D. Nesvorny. 2019. Modeling the Altitude Distribution of Meteor Head Echoes Observed with HPLA Radars: Implications for the Radar Detectability of Meteoroid Populations The Astronomical Journal 157 (5): 179 [10.3847/1538-3881/ab0ec6]

Pokorný, P., and M. Kuchner. 2019. Co-orbital Asteroids as the Source of Venus's Zodiacal Dust Ring The Astrophysical Journal 873 (2): L16 [10.3847/2041-8213/ab0827]

Pokorný, P., D. Janches, M. Sarantos, et al. J. R. Szalay, M. Horányi, D. Nesvorný, and M. J. Kuchner. 2019. Meteoroids at the Moon: Orbital Properties, Surface Vaporization, and Impact Ejecta Production Journal of Geophysical Research: Planets [10.1029/2018je005912]

Szalay, J. R., P. Pokorný, Z. Sternovsky, et al. Z. Kupihar, A. R. Poppe, and M. Horányi. 2019. Impact Ejecta and Gardening in the Lunar Polar Regions Journal of Geophysical Research: Planets 124 (1): 143-154 [10.1029/2018je005756]

Szalay, J. R., P. Pokorný, M. Horányi, et al. D. Janches, M. Sarantos, and R. Srama. 2019. Impact ejecta environment of an eccentric asteroid: 3200 Phaethon Planetary and Space Science 165 194-204 [10.1016/j.pss.2018.11.001]

Pokorný, P., M. Sarantos, and D. Janches. 2018. A Comprehensive Model of the Meteoroid Environment around Mercury The Astrophysical Journal 863 (1): 31 [10.3847/1538-4357/aad051]

Schult, C., P. Brown, P. Pokorný, G. Stober, and J. L. Chau. 2018. A meteoroid stream survey using meteor head echo observations from the Middle Atmosphere ALOMAR Radar System (MAARSY) Icarus 309 177-186 [10.1016/j.icarus.2018.02.032]

Jenniskens, P., J. Baggaley, I. Crumpton, et al. P. Aldous, P. Pokorny, D. Janches, P. S. Gural, D. Samuels, J. Albers, A. Howell, C. Johannink, M. Breukers, M. Odeh, N. Moskovitz, J. Collison, and S. Ganju. 2018. A survey of southern hemisphere meteor showers Planetary and Space Science [10.1016/j.pss.2018.02.013]

Janches, D., P. Pokorný, M. Sarantos, et al. J. R. Szalay, M. Horányi, and D. Nesvorný. 2018. Constraining the ratio of micrometeoroids from Short and Long Period Comets at 1 AU from LADEE observations of the Lunar Dust Cloud Geophysical Research Letters [10.1002/2017gl076065]

Szalay, J. R., P. Pokorný, P. Jenniskens, and M. Horányi. 2017. Activity of the 2013 Geminid meteoroid stream at the Moon Monthly Notices of the Royal Astronomical Society 474 (3): 4225-4231 [10.1093/mnras/stx3007]

Frankland, V. L., A. D. James, J. Carrillo Sanchez, et al. D. Nesvorný, P. Pokorný, and J. M. Plane. 2017. CO oxidation and O 2 removal on meteoric material in Venus’ atmosphere Icarus 296 150-162 [10.1016/j.icarus.2017.06.005]

Abedin, A., P. Wiegert, D. Janches, et al. P. Pokorný, P. Brown, and J. L. Hormaechea. 2017. Formation and past evolution of the showers of 96P/Machholz complex Icarus [10.1016/j.icarus.2017.07.015]

Wiegert, P., P. Brown, P. Pokorny, K. Lenartowicz, and Z. Krzeminski. 2017. Measuring the Meteoroid Environments of the Planets with Meteor Detectors on Earth The Astronomical Journal 154 (1): 36 [10.3847/1538-3881/aa77fe]

Janches, D., N. Swarnalingam, J. Carrillo Sanchez, et al. J. C. Gomez-Martin, R. Marshall, D. Nesvorný, J. M. Plane, W. Feng, and P. Pokorný. 2017. Radar Detectability Studies of Slow and Small Zodiacal Dust Cloud Particles. III. The Role of Sodium and the Head Echo Size on the Probability of Detection The Astrophysical Journal 843 (1): 1 [10.3847/1538-4357/aa775c]

Pokorný, P., M. Sarantos, and D. Janches. 2017. Reconciling the Dawn–Dusk Asymmetry in Mercury’s Exosphere with the Micrometeoroid Impact Directionality The Astrophysical Journal Letters 842 (2): L17 [10.3847/2041-8213/aa775d]

Pokorny, P., D. Janches, P. Brown, and J. Hormaechea. 2017. An Orbital Meteoroid Stream Survey using the Southern Argentina Agile MEteor Radar (SAAMER) based on a Wavelet approach Icarus (290): 162-182 [10.1016/j.icarus.2017.02.025]

Abedin, A., P. Wiegert, P. Pokorný, and P. Brown. 2017. The age and the probable parent body of the daytime arietid meteor shower Icarus 281 417-443 [10.1016/j.icarus.2016.08.017]

Carrillo Sanchez, J., D. Nesvorný, P. Pokorný, D. Janches, and J. M. Plane. 2016. Sources of Cosmic Dust in the Earth's Atmosphere Geophysical Research Letters [10.1002/2016gl071697]

Pokorný, P., and P. G. Brown. 2016. A reproducible method to determine the meteoroid mass index Astronomy & Astrophysics 592 A150 [10.1051/0004-6361/201628134]

Ye, Q.-Z., P. G. Brown, and P. Pokorný. 2016. Dormant comets among the near-Earth object population: a meteor-based survey Monthly Notices of the Royal Astronomical Society 462 (4): 3511-3527 [10.1093/mnras/stw1846]

Ye (叶泉志), Q.-Z., M.-T. Hui (许文韬), P. G. Brown, et al. M. D. Campbell-Brown, P. Pokorný, P. A. Wiegert, and X. Gao (高兴). 2016. When comets get old: A synthesis of comet and meteor observations of the low activity comet 209P/LINEAR Icarus 264 48-61 [10.1016/j.icarus.2015.09.003]

Abedin, A., P. Spurný, P. Wiegert, et al. P. Pokorný, J. Borovička, and P. Brown. 2015. On the age and formation mechanism of the core of the Quadrantid meteoroid stream Icarus 261 100-117 [10.1016/j.icarus.2015.08.016]

Pokorný, P., D. Vokrouhlický, D. Nesvorný, M. Campbell-Brown, and P. Brown. 2014. DYNAMICAL MODEL FOR THE TOROIDAL SPORADIC METEORS The Astrophysical Journal 789 (1): 25 [10.1088/0004-637x/789/1/25]

Pokorný, P., and D. Vokrouhlický. 2013. Öpik-type collision probability for high-inclination orbits: Targets on eccentric orbits Icarus 226 (1): 682-693 [10.1016/j.icarus.2013.06.015]

Vokrouhlický, D., P. Pokorný, and D. Nesvorný. 2012. Öpik-type collision probability for high-inclination orbits Icarus 219 (1): 150-160 [10.1016/j.icarus.2012.02.021]

Nesvorny, D., D. Janches, D. Vokrouhlicky, et al. P. Pokorny, W. F. Bottke, and P. Jenniskens. 2011. Dynamical Model for the Zodiacal Cloud and Sporadic Meteors The Astrophysical Journal 743 (2): 129 [10.1088/0004-637X/743/2/129]

Nesvorny, D., D. Vokrouhlicky, P. Pokorny, and D. Janches. 2011. Dynamics of Dust Particles Released from Oort Cloud Comets and Their Contribution to Radar Meteors The Astrophysical Journal 743 (1): 37 [10.1088/0004-637X/743/1/37]