Dr. PETR POKORNY

Dr. PETR POKORNY

  • RESEARCH ASSOCIATE
  • 301.286.3668
  • NASA/GSFC
  • Mail Code: 667
  • Greenbelt , MD 20771
  • Employer: CATHOLIC UNIV OF AMERICA
  • Positions/Employment

    9/2016 - Present

    Research Scholar

    The Catholic University of America, Washington, DC, USA
    10/2014 - 8/2016

    Postdoctoral Research Fellow

    University of Western Ontario, London, ON, Canada

    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

    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]

    Publications

    Refereed

    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 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]

                                                                                                                                                                                            
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