Leonid Petrov

Leonid Petrov

  • Instrument Scientist for Space Geodesy Project
  • Additional Roles: SCIENTIFIC SOFTWARE DEVELOPER
  • 301.614.5611
  • NASA/GSFC
  • Mail Code: 61A
  • Greenbelt , MD 20771
  • Employer: NASA
  • Brief Bio

    Leonid Petrov has over 30 years of experience in space geodesy, astrometry, and radioastronomy. He has been developing algorithms for all stages of analysis of very long baseline interferometry and their implementation in software and the operational pipeline. He has led a number of projects that resulted in the most complete catalogue of compact radio sources. He has been working on incorporation of the output of numerical weather models into analysis of space geodesy and astronomy observations.
     

    Research Interests

    Geophysics

    Astronomy

    Improvement of VLBI technique

    Current Projects

    Space Geodesy

    VLBI Lead Scientist. Lead the efforts to improve VLBI results for geodesy, geophysics, and astronomy.

    Excitation and dissipation of the free core nutation

    Study of the effect of liquid core to the Earth rotation by combined analysis of VLBI observations and the outputs of numerical weather models.
     

    Improvement of modeling the atmosphere for space geodesy

    Study of the optimal accounting the turbulence of the atmosphere for analysis of space geodesy observations.

    Improvement of the radioastrometry catalogues

    Lead observational programs that aims to improve positions of compact radio sources.

    Professional Service

    Managing the International Mass Loading Service

    Managing the Network Earth Rotation Service

    Managing the Atmospheric Angular Momentum Service

    Managing the Path Delay in the Atmosphere Service

    Managing the International Path Delay Service

    Managing the VLBI Calibrator search engine

    Managing the The VLBI image database

    Maintaining scientific open source software packages: PIMA, VTD, NERS, Sotid, Fourpack, gvh, malo, spd, sur_sked

    Publications

    Refereed

    Petrov, L., Y. Kovalev, and A. Plavin. 2019. "A quantitative analysis of systematic differences in positions and proper motions of Gaia DR2 with respect to VLBI." Monthly Notices of the Royal Astronomical Society, 482 (3): 3023–3031 [10.1093/mnras/sty2807]

    Petrov, L., A. de Witt, E. Sadler, C. Phillips, and S. Horiuchi. 2019. "The Second LBA Calibrator Survey of southern compact extragalactic radio sources - LCS2." Monthly Notices of the Royal Astronomical Society, 485 (1): 88-101 [10.1093/mnras/stz242]

    Plavin, A., Y. Kovalev, and L. Petrov. 2019. "Dissecting the AGN disk-jet system with joint VLBI-Gaia analysis." The Astrophysical Journal, 871 (2): 143 [10.3847/1538-4357/aaf650]

    Deller, A., W. Goss, W. Brisken, et al. S. Chatterjee, J. Cordes, G. Janssen, Y. Kovalev, T. Lazio, L. Petrov, B. Stappers, and A. Lyne. 2019. "Microarcsecond VLBI pulsar astrometry with PSRpi II. parallax distances for 57 pulsars." The Astronomical Journral, 875 (2): 100 [10.3847/1538-4357/ab11c7]

    Giovannini, G., T. Savolainen, M. Orienti, et al. M. Nakamura, H. Nagai, M. Kino, M. Giroletti, K. Hada, G. Bruni, Y. Y. Kovalev, J. M. Anderson, F. D’Ammando, J. Hodgson, M. Honma, T. P. Krichbaum, S.-S. Lee, R. Lico, M. M. Lisakov, A. P. Lobanov, L. Petrov, B. W. Sohn, K. V. Sokolovsky, P. A. Voitsik, J. A. Zensus, and S. Tingay. 2018. "A wide and collimated radio jet in 3C84 on the scale of a few hundred gravitational radii." Nature Astronomy, 2 (6): 472-477 [10.1038/s41550-018-0431-2]

    Harju, J., K. Lehtinen, J. Romney, et al. L. Petrov, M. Granvik, K. Muinonen, U. Bach, and M. Poutanen. 2018. "Radio Interferometric Observation of an Asteroid Occultation." The Astronomical Journal, 156 (4): 155 [10.3847/1538-3881/aad45b]

    Condon, J. J., J. Darling, Y. Y. Kovalev, and L. Petrov. 2017. "a Nearly Naked Supermassive Black Hole." The Astrophysical Journal, 834 (2): 184 [10.3847/1538-4357/834/2/184]

    Kovalev, Y. Y., L. Petrov, and A. V. Plavin. 2017. "VLBI-Gaia offsets favor parsec-scale jet direction in active galactic nuclei." Astronomy & Astrophysics, 598: L1 [10.1051/0004-6361/201630031]

    Schinzel, F. K., L. Petrov, G. B. Taylor, and P. G. Edwards. 2017. "Radio Follow-up on All Unassociated Gamma-Ray Sources from the Third Fermi Large Area Telescope Source Catalog." The Astrophysical Journal, 838 (2): 139 [10.3847/1538-4357/aa6439]

    Petrov, L., and Y. Y. Kovalev. 2017. "On significance of VLBI/Gaia position offsets." Monthly Notices of the Royal Astronomical Society: Letters, 467 (1): L71-L75 [10.1093/mnrasl/slx001]

    Shu, F., L. Petrov, W. Jiang, et al. B. Xia, T. Jiang, Y. Cui, K. Takefuji, J. McCallum, J. Lovell, S.-O. Yi, L. Hao, W. Yang, H. Zhang, Z. Chen, and J. Li. 2017. "VLBI Ecliptic Plane Survey: VEPS-1." The Astrophysical Journal Supplement Series, 230 (2): 13 [10.3847/1538-4365/aa71a3]

    Petrov, L., and Y. Y. Kovalev. 2017. "Observational consequences of optical band milliarcsec-scale structure in active galactic nuclei discovered by Gaia." Monthly Notices of the Royal Astronomical Society, 471 (4): 3775-3787 [10.1093/mnras/stx1747]

    Kovalev, Y. Y., N. S. Kardashev, K. I. Kellermann, et al. A. P. Lobanov, M. D. Johnson, L. I. Gurvits, P. A. Voitsik, J. A. Zensus, J. M. Anderson, U. Bach, D. L. Jauncey, F. Ghigo, T. Ghosh, A. Kraus, Y. A. Kovalev, M. M. Lisakov, L. Y. Petrov, J. D. Romney, C. J. Salter, and K. V. Sokolovsky. 2016. "RADIOASTRON OBSERVATIONS OF THE QUASAR 3C273: A CHALLENGE TO THE BRIGHTNESS TEMPERATURE LIMIT." The Astrophysical Journal, 820 (1): L9 [10.3847/2041-8205/820/1/l9]

    Lehtinen, K., U. Bach, K. Muinonen, M. Poutanen, and L. Petrov. 2016. "ASTEROID SIZING BY RADIOGALAXY OCCULTATION AT 5 GHZ." The Astrophysical Journal, 822 (2): L21 [10.3847/2041-8205/822/2/l21]

    Deller, A. T., S. J. Vigeland, D. L. Kaplan, et al. W. M. Goss, W. F. Brisken, S. Chatterjee, J. M. Cordes, G. H. Janssen, T. J. Lazio, L. Petrov, B. W. Stappers, and A. Lyne. 2016. "MICROARCSECOND VLBI PULSAR ASTROMETRY WITH PSRπ. I. TWO BINARY MILLISECOND PULSARS WITH WHITE DWARF COMPANIONS." The Astrophysical Journal, 828 (1): 8 [10.3847/0004-637x/828/1/8]

    Schinzel, F. K., L. Petrov, G. B. Taylor, et al. E. K. Mahony, P. G. Edwards, and Y. Y. Kovalev. 2015. "NEW ASSOCIATIONS OF GAMMA-RAY SOURCES FROM THE FERMI SECOND SOURCE CATALOG." The Astrophysical Journal Supplement Series, 217 (1): 4 [10.1088/0067-0049/217/1/4]

    Strader, J., L. Chomiuk, C. C. Cheung, et al. D. J. Sand, D. Donato, R. H. Corbet, D. Koeppe, P. G. Edwards, J. Stevens, L. Petrov, R. Salinas, M. Peacock, T. Finzell, D. E. Reichart, and J. B. Haislip. 2015. "1FGL J1417.7–4407: A LIKELY GAMMA-RAY BRIGHT BINARY WITH A MASSIVE NEUTRON STAR AND A GIANT SECONDARY." The Astrophysical Journal, 804 (1): L12 [10.1088/2041-8205/804/1/l12]

    Petrov, L., T. Natusch, S. Weston, et al. J. McCallum, S. Ellingsen, and S. Gulyaev. 2015. "First Scientific VLBI Observations Using New Zealand 30 Meter Radio Telescope WARK30M." pasp, 127: 516 [10.1086/681965]

    Lee, S.-S., L. Petrov, D.-Y. Byun, et al. J. Kim, T. Jung, M.-G. Song, C. S. Oh, D.-G. Roh, D.-H. Je, S.-O. Wi, B. W. Sohn, S.-J. Oh, K.-T. Kim, J.-H. Yeom, M.-H. Chung, J. Kang, S.-T. Han, J.-W. Lee, B. G. Kim, H. Chung, H.-G. Kim, H. R. Kim, Y.-W. Kang, and S.-H. Cho. 2014. "EARLY SCIENCE WITH THE KOREAN VLBI NETWORK: EVALUATION OF SYSTEM PERFORMANCE." The Astronomical Journal, 147 (4): 77 [10.1088/0004-6256/147/4/77]

    Petrov, L., E. K. Mahony, P. G. Edwards, et al. E. M. Sadler, F. K. Schinzel, and D. McConnell. 2013. "Australia Telescope Compact Array observations of Fermi unassociated sources." Monthly Notices of the Royal Astronomical Society, 432 (2): 1294-1302 [10.1093/mnras/stt550]

    Petrov, L. 2013. "THE CATALOG OF POSITIONS OF OPTICALLY BRIGHT EXTRAGALACTIC RADIO SOURCES OBRS-2." The Astronomical Journal, 146 (1): 5 [10.1088/0004-6256/146/1/5]

    Petrov, L., M. Honma, and S. M. Shibata. 2012. "THE KCAL VERA 22 GHz CALIBRATOR SURVEY." The Astronomical Journal, 143 (2): 35 [10.1088/0004-6256/143/2/35]

    Bartel, N., M. F. Bietenholz, D. E. Lebach, et al. J. I. Lederman, L. Petrov, R. R. Ransom, M. I. Ratner, and I. I. Shapiro. 2012. "VLBI FORGRAVITY PROBE B. III. A LIMIT ON THE PROPER MOTION OF THE “CORE” OF THE QUASAR 3C 454.3." The Astrophysical Journal Supplement Series, 201 (1): 3 [10.1088/0067-0049/201/1/3]

    Petrov, L., S.-S. Lee, J. Kim, et al. T. Jung, J. Oh, B. W. Sohn, D.-Y. Byun, M.-H. Chung, D.-H. Je, S.-O. Wi, M.-G. Song, J. Kang, S.-T. Han, J.-W. Lee, B. G. Kim, H. Chung, and H.-G. Kim. 2012. "EARLY SCIENCE WITH THE KOREAN VLBI NETWORK: THE QCAL-1 43 GHz CALIBRATOR SURVEY." The Astronomical Journal, 144 (5): 150 [10.1088/0004-6256/144/5/150]

    Petrov, L., C. Phillips, T. Tzioumis, et al. B. Stansby, C. Reynolds, H. E. Bignall, S. Gulyaev, T. Natusch, N. Palmer, D. Collett, J. E. Reynolds, S. W. Amy, R. Wayth, and S. J. Tingay. 2011. "First Geodetic Observations Using New VLBI Stations ASKAP-29 and WARK12M." Publications of the Astronomical Society of Australia, 28 (02): 107-116 [10.1071/as10048]

    Petrov, L., C. Phillips, A. Bertarini, T. Murphy, and E. M. Sadler. 2011. "The LBA Calibrator Survey of southern compact extragalactic radio sources - LCS1." Monthly Notices of the Royal Astronomical Society, 414 (3): 2528-2539 [10.1111/j.1365-2966.2011.18570.x]

    Petrov, L., Y. Y. Kovalev, E. B. Fomalont, and D. Gordon. 2011. "THE VERY LONG BASELINE ARRAY GALACTIC PLANE SURVEY—VGaPS." The Astronomical Journal, 142 (2): 35 [10.1088/0004-6256/142/2/35]

    Petrov, L., and G. B. Taylor. 2011. "PRECISE ABSOLUTE ASTROMETRY FROM THE VLBA IMAGING AND POLARIMETRY SURVEY AT 5 GHz." The Astronomical Journal, 142 (3): 89 [10.1088/0004-6256/142/3/89]

    Petrov, L. 2011. "THE CATALOG OF POSITIONS OF OPTICALLY BRIGHT EXTRAGALACTIC RADIO SOURCES OBRS-1." The Astronomical Journal, 142 (4): 105 [10.1088/0004-6256/142/4/105]

    Petrov, L. 2011. "The EVN Galactic Plane Survey - EGaPS." Monthly Notices of the Royal Astronomical Society, 419 (2): 1097-1106 [10.1111/j.1365-2966.2011.19765.x]

    Sarti, P., C. Abbondanza, L. Petrov, and M. Negusini. 2010. "Height bias and scale effect induced by antenna gravitational deformations in geodetic VLBI data analysis." Journal of Geodesy, 85 (1): 1-8 [10.1007/s00190-010-0410-6]

    Petrov, L., C. Phillips, A. Bertarini, et al. A. Deller, S. Pogrebenko, and A. Mujunen. 2009. "Use of the Long Baseline Array in Australia for Precise Geodesy and Absolute Astrometry." Publications of the Astronomical Society of Australia, 26 (01): 75-84 [10.1071/as08030]

    Petrov, L., D. Gordon, J. Gipson, et al. D. MacMillan, C. Ma, E. Fomalont, R. Walker, and C. C. Carabajal. 2009. "Precise geodesy with the Very Long Baseline Array." Journal of Geodesy, 83 (9): 859-876 [10.1007/s00190-009-0304-7]

    Petrov, L., Y. Y. Kovalev, E. B. Fomalont, and D. Gordon. 2008. "THE SIXTH VLBA CALIBRATOR SURVEY: VCS6." The Astronomical Journal, 136 (2): 580-585 [10.1088/0004-6256/136/2/580]

    Petrov, L. 2007. "The empirical Earth rotation model from VLBI observations." Astronomy & Astrophysics, 467 (1): 359-369 [10.1051/0004-6361:20065091]

    Kovalev, Y. Y., L. Petrov, E. B. Fomalont, and D. Gordon. 2007. "The Fifth VLBA Calibrator Survey: VCS5." The Astronomical Journal, 133 (4): 1236-1242 [10.1086/511157]

    Petrov, L., T. Hirota, M. Honma, et al. K. M. Shibata, T. Jike, and H. Kobayashi. 2007. "VERA 22 GHz Fringe Search Survey." The Astronomical Journal, 133 (6): 2487-2494 [10.1086/513146]

    Petrov, L., Y. Y. Kovalev, E. B. Fomalont, and D. Gordon. 2006. "The Fourth VLBA Calibrator Survey: VCS4." The Astronomical Journal, 131 (3): 1872-1879 [10.1086/499947]

    Petrov, L., Y. Y. Kovalev, E. Fomalont, and D. Gordon. 2005. "The Third VLBA Calibrator Survey: VCS3." The Astronomical Journal, 129 (2): 1163-1170 [10.1086/426920]

    Petrov, L., and J.-P. . 2004. "Study of the atmospheric pressure loading signal in very long baseline interferometry observations." Journal of Geophysical Research, 109 (B3): B03405 [10.1029/2003jb002500]

    Petrov, L., and C. Ma. 2003. "Study of harmonic site position variations determined by very long baseline interferometry." J. Geophys. Res., 108 (B4): 2190 [10.1029/2002JB001801]

    Fomalont, E. B., L. Petrov, D. MacMillan, D. Gordon, and C. Ma. 2003. "The Second VLBA Calibrator Survey: VCS2." The Astrophysical Journal, 126 (5): 2562-2566 [10.1086/378712]

    Beasley, A., D. Gordon, A. Peck, et al. L. Petrov, D. MacMillan, E. Fomalont, and C. Ma. 2002. "The VLBA Calibrator Survey—VCS1." Astrophysical Journal, Supplement Series, 141 (1): 13-21 [10.1086/339806]

    Petrov, L., O. Volvach, and N. Nesterov. 2001. "Measurements of horizontal motion of the station Simeiz using VLBI." Kinematika i Fizika Nebesnykh Tel, 17: 424-436.

    Petrov, L. 1998. "VLBI measurements of the crustal deformations induced by polar motion.." Izvestiya Physics of the Solid Earth, 34: 228-230.

    Non-Refereed

    Petrov, L. Y., and S. B. Luthcke. 2013. "Revision of the Atmospheric Delay Correction for ICESat-2 Laser Altimeter Ranges." NASA/TM–2013- 217513 Greenbelt, Maryland, U.S.A.: [Full Text (Link)]

    Brief Bio

    Leonid Petrov has over 30 years of experience in space geodesy, astrometry, and radioastronomy. He has been developing algorithms for all stages of analysis of very long baseline interferometry and their implementation in software and the operational pipeline. He has led a number of projects that resulted in the most complete catalogue of compact radio sources. He has been working on incorporation of the output of numerical weather models into analysis of space geodesy and astronomy observations.
     

    Publications

    Refereed

    Petrov, L., Y. Kovalev, and A. Plavin. 2019. "A quantitative analysis of systematic differences in positions and proper motions of Gaia DR2 with respect to VLBI." Monthly Notices of the Royal Astronomical Society 482 (3): 3023–3031 [10.1093/mnras/sty2807]

    Petrov, L., A. de Witt, E. Sadler, C. Phillips, and S. Horiuchi. 2019. "The Second LBA Calibrator Survey of southern compact extragalactic radio sources - LCS2." Monthly Notices of the Royal Astronomical Society 485 (1): 88-101 [10.1093/mnras/stz242]

    Plavin, A., Y. Kovalev, and L. Petrov. 2019. "Dissecting the AGN disk-jet system with joint VLBI-Gaia analysis." The Astrophysical Journal 871 (2): 143 [10.3847/1538-4357/aaf650]

    Deller, A., W. Goss, W. Brisken, et al. S. Chatterjee, J. Cordes, G. Janssen, Y. Kovalev, T. Lazio, L. Petrov, B. Stappers, and A. Lyne. 2019. "Microarcsecond VLBI pulsar astrometry with PSRpi II. parallax distances for 57 pulsars." The Astronomical Journral 875 (2): 100 [10.3847/1538-4357/ab11c7]

    Giovannini, G., T. Savolainen, M. Orienti, et al. M. Nakamura, H. Nagai, M. Kino, M. Giroletti, K. Hada, G. Bruni, Y. Y. Kovalev, J. M. Anderson, F. D’Ammando, J. Hodgson, M. Honma, T. P. Krichbaum, S.-S. Lee, R. Lico, M. M. Lisakov, A. P. Lobanov, L. Petrov, B. W. Sohn, K. V. Sokolovsky, P. A. Voitsik, J. A. Zensus, and S. Tingay. 2018. "A wide and collimated radio jet in 3C84 on the scale of a few hundred gravitational radii." Nature Astronomy 2 (6): 472-477 [10.1038/s41550-018-0431-2]

    Harju, J., K. Lehtinen, J. Romney, et al. L. Petrov, M. Granvik, K. Muinonen, U. Bach, and M. Poutanen. 2018. "Radio Interferometric Observation of an Asteroid Occultation." The Astronomical Journal 156 (4): 155 [10.3847/1538-3881/aad45b]

    Condon, J. J., J. Darling, Y. Y. Kovalev, and L. Petrov. 2017. "a Nearly Naked Supermassive Black Hole." The Astrophysical Journal 834 (2): 184 [10.3847/1538-4357/834/2/184]

    Kovalev, Y. Y., L. Petrov, and A. V. Plavin. 2017. "VLBI-Gaia offsets favor parsec-scale jet direction in active galactic nuclei." Astronomy & Astrophysics 598 L1 [10.1051/0004-6361/201630031]

    Schinzel, F. K., L. Petrov, G. B. Taylor, and P. G. Edwards. 2017. "Radio Follow-up on All Unassociated Gamma-Ray Sources from the Third Fermi Large Area Telescope Source Catalog." The Astrophysical Journal 838 (2): 139 [10.3847/1538-4357/aa6439]

    Petrov, L., and Y. Y. Kovalev. 2017. "On significance of VLBI/Gaia position offsets." Monthly Notices of the Royal Astronomical Society: Letters 467 (1): L71-L75 [10.1093/mnrasl/slx001]

    Shu, F., L. Petrov, W. Jiang, et al. B. Xia, T. Jiang, Y. Cui, K. Takefuji, J. McCallum, J. Lovell, S.-O. Yi, L. Hao, W. Yang, H. Zhang, Z. Chen, and J. Li. 2017. "VLBI Ecliptic Plane Survey: VEPS-1." The Astrophysical Journal Supplement Series 230 (2): 13 [10.3847/1538-4365/aa71a3]

    Petrov, L., and Y. Y. Kovalev. 2017. "Observational consequences of optical band milliarcsec-scale structure in active galactic nuclei discovered by Gaia." Monthly Notices of the Royal Astronomical Society 471 (4): 3775-3787 [10.1093/mnras/stx1747]

    Kovalev, Y. Y., N. S. Kardashev, K. I. Kellermann, et al. A. P. Lobanov, M. D. Johnson, L. I. Gurvits, P. A. Voitsik, J. A. Zensus, J. M. Anderson, U. Bach, D. L. Jauncey, F. Ghigo, T. Ghosh, A. Kraus, Y. A. Kovalev, M. M. Lisakov, L. Y. Petrov, J. D. Romney, C. J. Salter, and K. V. Sokolovsky. 2016. "RADIOASTRON OBSERVATIONS OF THE QUASAR 3C273: A CHALLENGE TO THE BRIGHTNESS TEMPERATURE LIMIT." The Astrophysical Journal 820 (1): L9 [10.3847/2041-8205/820/1/l9]

    Lehtinen, K., U. Bach, K. Muinonen, M. Poutanen, and L. Petrov. 2016. "ASTEROID SIZING BY RADIOGALAXY OCCULTATION AT 5 GHZ." The Astrophysical Journal 822 (2): L21 [10.3847/2041-8205/822/2/l21]

    Deller, A. T., S. J. Vigeland, D. L. Kaplan, et al. W. M. Goss, W. F. Brisken, S. Chatterjee, J. M. Cordes, G. H. Janssen, T. J. Lazio, L. Petrov, B. W. Stappers, and A. Lyne. 2016. "MICROARCSECOND VLBI PULSAR ASTROMETRY WITH PSRπ. I. TWO BINARY MILLISECOND PULSARS WITH WHITE DWARF COMPANIONS." The Astrophysical Journal 828 (1): 8 [10.3847/0004-637x/828/1/8]

    Schinzel, F. K., L. Petrov, G. B. Taylor, et al. E. K. Mahony, P. G. Edwards, and Y. Y. Kovalev. 2015. "NEW ASSOCIATIONS OF GAMMA-RAY SOURCES FROM THE FERMI SECOND SOURCE CATALOG." The Astrophysical Journal Supplement Series 217 (1): 4 [10.1088/0067-0049/217/1/4]

    Strader, J., L. Chomiuk, C. C. Cheung, et al. D. J. Sand, D. Donato, R. H. Corbet, D. Koeppe, P. G. Edwards, J. Stevens, L. Petrov, R. Salinas, M. Peacock, T. Finzell, D. E. Reichart, and J. B. Haislip. 2015. "1FGL J1417.7–4407: A LIKELY GAMMA-RAY BRIGHT BINARY WITH A MASSIVE NEUTRON STAR AND A GIANT SECONDARY." The Astrophysical Journal 804 (1): L12 [10.1088/2041-8205/804/1/l12]

    Petrov, L., T. Natusch, S. Weston, et al. J. McCallum, S. Ellingsen, and S. Gulyaev. 2015. "First Scientific VLBI Observations Using New Zealand 30 Meter Radio Telescope WARK30M." pasp 127 516 [10.1086/681965]

    Lee, S.-S., L. Petrov, D.-Y. Byun, et al. J. Kim, T. Jung, M.-G. Song, C. S. Oh, D.-G. Roh, D.-H. Je, S.-O. Wi, B. W. Sohn, S.-J. Oh, K.-T. Kim, J.-H. Yeom, M.-H. Chung, J. Kang, S.-T. Han, J.-W. Lee, B. G. Kim, H. Chung, H.-G. Kim, H. R. Kim, Y.-W. Kang, and S.-H. Cho. 2014. "EARLY SCIENCE WITH THE KOREAN VLBI NETWORK: EVALUATION OF SYSTEM PERFORMANCE." The Astronomical Journal 147 (4): 77 [10.1088/0004-6256/147/4/77]

    Petrov, L., E. K. Mahony, P. G. Edwards, et al. E. M. Sadler, F. K. Schinzel, and D. McConnell. 2013. "Australia Telescope Compact Array observations of Fermi unassociated sources." Monthly Notices of the Royal Astronomical Society 432 (2): 1294-1302 [10.1093/mnras/stt550]

    Petrov, L. 2013. "THE CATALOG OF POSITIONS OF OPTICALLY BRIGHT EXTRAGALACTIC RADIO SOURCES OBRS-2." The Astronomical Journal 146 (1): 5 [10.1088/0004-6256/146/1/5]

    Petrov, L., M. Honma, and S. M. Shibata. 2012. "THE KCAL VERA 22 GHz CALIBRATOR SURVEY." The Astronomical Journal 143 (2): 35 [10.1088/0004-6256/143/2/35]

    Bartel, N., M. F. Bietenholz, D. E. Lebach, et al. J. I. Lederman, L. Petrov, R. R. Ransom, M. I. Ratner, and I. I. Shapiro. 2012. "VLBI FORGRAVITY PROBE B. III. A LIMIT ON THE PROPER MOTION OF THE “CORE” OF THE QUASAR 3C 454.3." The Astrophysical Journal Supplement Series 201 (1): 3 [10.1088/0067-0049/201/1/3]

    Petrov, L., S.-S. Lee, J. Kim, et al. T. Jung, J. Oh, B. W. Sohn, D.-Y. Byun, M.-H. Chung, D.-H. Je, S.-O. Wi, M.-G. Song, J. Kang, S.-T. Han, J.-W. Lee, B. G. Kim, H. Chung, and H.-G. Kim. 2012. "EARLY SCIENCE WITH THE KOREAN VLBI NETWORK: THE QCAL-1 43 GHz CALIBRATOR SURVEY." The Astronomical Journal 144 (5): 150 [10.1088/0004-6256/144/5/150]

    Petrov, L., C. Phillips, T. Tzioumis, et al. B. Stansby, C. Reynolds, H. E. Bignall, S. Gulyaev, T. Natusch, N. Palmer, D. Collett, J. E. Reynolds, S. W. Amy, R. Wayth, and S. J. Tingay. 2011. "First Geodetic Observations Using New VLBI Stations ASKAP-29 and WARK12M." Publications of the Astronomical Society of Australia 28 (02): 107-116 [10.1071/as10048]

    Petrov, L., C. Phillips, A. Bertarini, T. Murphy, and E. M. Sadler. 2011. "The LBA Calibrator Survey of southern compact extragalactic radio sources - LCS1." Monthly Notices of the Royal Astronomical Society 414 (3): 2528-2539 [10.1111/j.1365-2966.2011.18570.x]

    Petrov, L., Y. Y. Kovalev, E. B. Fomalont, and D. Gordon. 2011. "THE VERY LONG BASELINE ARRAY GALACTIC PLANE SURVEY—VGaPS." The Astronomical Journal 142 (2): 35 [10.1088/0004-6256/142/2/35]

    Petrov, L., and G. B. Taylor. 2011. "PRECISE ABSOLUTE ASTROMETRY FROM THE VLBA IMAGING AND POLARIMETRY SURVEY AT 5 GHz." The Astronomical Journal 142 (3): 89 [10.1088/0004-6256/142/3/89]

    Petrov, L. 2011. "THE CATALOG OF POSITIONS OF OPTICALLY BRIGHT EXTRAGALACTIC RADIO SOURCES OBRS-1." The Astronomical Journal 142 (4): 105 [10.1088/0004-6256/142/4/105]

    Petrov, L. 2011. "The EVN Galactic Plane Survey - EGaPS." Monthly Notices of the Royal Astronomical Society 419 (2): 1097-1106 [10.1111/j.1365-2966.2011.19765.x]

    Sarti, P., C. Abbondanza, L. Petrov, and M. Negusini. 2010. "Height bias and scale effect induced by antenna gravitational deformations in geodetic VLBI data analysis." Journal of Geodesy 85 (1): 1-8 [10.1007/s00190-010-0410-6]

    Petrov, L., C. Phillips, A. Bertarini, et al. A. Deller, S. Pogrebenko, and A. Mujunen. 2009. "Use of the Long Baseline Array in Australia for Precise Geodesy and Absolute Astrometry." Publications of the Astronomical Society of Australia 26 (01): 75-84 [10.1071/as08030]

    Petrov, L., D. Gordon, J. Gipson, et al. D. MacMillan, C. Ma, E. Fomalont, R. Walker, and C. C. Carabajal. 2009. "Precise geodesy with the Very Long Baseline Array." Journal of Geodesy 83 (9): 859-876 [10.1007/s00190-009-0304-7]

    Petrov, L., Y. Y. Kovalev, E. B. Fomalont, and D. Gordon. 2008. "THE SIXTH VLBA CALIBRATOR SURVEY: VCS6." The Astronomical Journal 136 (2): 580-585 [10.1088/0004-6256/136/2/580]

    Petrov, L. 2007. "The empirical Earth rotation model from VLBI observations." Astronomy & Astrophysics 467 (1): 359-369 [10.1051/0004-6361:20065091]

    Kovalev, Y. Y., L. Petrov, E. B. Fomalont, and D. Gordon. 2007. "The Fifth VLBA Calibrator Survey: VCS5." The Astronomical Journal 133 (4): 1236-1242 [10.1086/511157]

    Petrov, L., T. Hirota, M. Honma, et al. K. M. Shibata, T. Jike, and H. Kobayashi. 2007. "VERA 22 GHz Fringe Search Survey." The Astronomical Journal 133 (6): 2487-2494 [10.1086/513146]

    Petrov, L., Y. Y. Kovalev, E. B. Fomalont, and D. Gordon. 2006. "The Fourth VLBA Calibrator Survey: VCS4." The Astronomical Journal 131 (3): 1872-1879 [10.1086/499947]

    Petrov, L., Y. Y. Kovalev, E. Fomalont, and D. Gordon. 2005. "The Third VLBA Calibrator Survey: VCS3." The Astronomical Journal 129 (2): 1163-1170 [10.1086/426920]

    Petrov, L., and J.-P. . 2004. "Study of the atmospheric pressure loading signal in very long baseline interferometry observations." Journal of Geophysical Research 109 (B3): B03405 [10.1029/2003jb002500]

    Petrov, L., and C. Ma. 2003. "Study of harmonic site position variations determined by very long baseline interferometry." J. Geophys. Res. 108 (B4): 2190 [10.1029/2002JB001801]

    Fomalont, E. B., L. Petrov, D. MacMillan, D. Gordon, and C. Ma. 2003. "The Second VLBA Calibrator Survey: VCS2." The Astrophysical Journal 126 (5): 2562-2566 [10.1086/378712]

    Beasley, A., D. Gordon, A. Peck, et al. L. Petrov, D. MacMillan, E. Fomalont, and C. Ma. 2002. "The VLBA Calibrator Survey—VCS1." Astrophysical Journal, Supplement Series 141 (1): 13-21 [10.1086/339806]

    Petrov, L., O. Volvach, and N. Nesterov. 2001. "Measurements of horizontal motion of the station Simeiz using VLBI." Kinematika i Fizika Nebesnykh Tel 17 424-436

    Petrov, L. 1998. "VLBI measurements of the crustal deformations induced by polar motion.." Izvestiya Physics of the Solid Earth 34 228-230

    Non-Refereed

    Petrov, L. Y., and S. B. Luthcke. 2013. "Revision of the Atmospheric Delay Correction for ICESat-2 Laser Altimeter Ranges." NASA/TM–2013- 217513 [Full Text (Link)]

                                                                                                                                                                                            
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