Homepage of Enrico Gerlach
Table of contents
Main research interests
Earth rotation, numerical integration, chaos detection methods, exoplanets, nonlinear dynamical systems, astrometry of minor planets
Scientific career
- 1997-2001
Study of geodesy at HTW Dresden
- 2001
diploma thesis: "Die Linien und Geoglyphen in der Pampa von Nasca - Astronomische Untersuchungen zur Überprüfung der Kalendertheorie"
- 2001-2003
executive engineer of the astro-geodetic field work at the border demarcation project between the kingdom of Saudi Arabia and the republic Yemen
- 2003-2008
researcher for the DFG project "Chaos and resonances in the Edgeworth-Kuiper belt"
- 2008
Graduation. Thesis: Stabilitätsuntersuchungen an Asteroidenbahnen in ausgewählten Bahnresonanzen des Edgeworth-Kuiper-Gürtels
- since october 2008
scientific staff member at the Lohrmann observatory
teaching
- Basic numerical computations in C (programming excercise, bachelor level): 2004-2006
- Physics I & II for geodesy (excercises at bachelor level): 2011 - today
- Practical astronomical observations (excercises for astronomy teachers): 2012 - today
- Earth rotation (lectures and exercises, master level): 2013 - today
- Astronomical reference systems (lecture for bachelor): SS 2014
- scientific supervisor of various bachelor theses
Publications
2021
- Gaia Collaboration, Brown, A.G.A., et al. (2021) Gaia Early Data Release 3. Summary of the contents and survey properties, Astronomy and Astrophysics, 649, A1, available online here and as arXiv-preprint
- Lindegren, L. et al. (2021) Gaia Early Data Release 3. The astrometric solution, Astronomy and Astrophysics, 649, A2, available online here and as arXiv-preprint
- L. Lindegren, U. Bastian, M. Biermann, A. Bombrun, A. de Torres, E. Gerlach, R. Geyer, J. Hernández, T. Hilger, D. Hobbs, S.A. Klioner, U. Lammers, P.J. McMillan, M. Ramos-Lerate, H. Steidelmüller, C.A. Stephenson, F. van Leeuwen (2021): Gaia Early Data Release 3: Parallax bias versus magnitude, colour, and position, Astronomy and Astrophysics, 649, A4, available online here and as arXiv-preprint
- Gaia Collaboration, S. Klioner et al. (2021): Gaia Early Data Release 3. Acceleration of the solar system from Gaia astrometry, Astronomy and Astrophysics, 649, A9, available online here and as arXiv-preprint
- Gaia Collaboration, R.L. Smart et al. (2021): Gaia Early Data Release 3. The Gaia Catalogue of Nearby Stars, Astronomy and Astrophysics, 649, A6 available online here and as arXiv-preprint
- Gaia Collaboration: X. Luri et al. (2021): Gaia Early Data Release 3. Structure and properties of the Magellanic Clouds, Astronomy and Astrophysics, 649, A7, available online here and as arXiv-preprint
- Gaia Collaboration, T. Antoja et al. (2021): Gaia Early Data Release 3: The Galactic anticentre, Astronomy and Astrophysics, 649, A8, available online here and as arXiv-preprint
2020
- Hillebrand M., Many Manda B., Kalosakas G., Gerlach E. & Skokos Ch. (2020): Chaotic dynamics of graphene and graphene nanoribbons, Chaos, 30, 063150, available online here
2016
- Anglada-Escudé, G., Tuomi, M., Arriagada, P., Zechmeister, M., Jenkins, J. S., Ofir, A., Dreizler, S., Gerlach, E., Marvin, C. J., Reiners, A., Jeffers, S. V., Butler, R. Paul, Vogt, S. S., Amado, P. J., Rodríguez-López, C. , Berdiñas, Z. M., Morin, J., Crane, J. D., Shectman, S. A., Díaz, M. R., Sarmiento, L. F., Jones, H. R. A. (2016): No Evidence for Activity Correlations in the radial Velocities of Kapteyn's Star, The Astrophysical Journal, 830, 74, available online here.
- Gerlach, E., Meichsner, J., Skokos, H (2015): On the symplectic integration of the discrete nonlinear Schrödinger equation with disorder, The European Physical Journal Special Topics, 225(6), 1103-1114, available online as arXiv-preprint
2015
- Thuillot, W. et al. (2015): The astrometric Gaia-FUN-SSO observation campaign of 99 942 Apophis, A&A, 583, A59, available online here or as arXiv-preprint
2014
- Eggl, S., Gerlach, E., Böttger, S., Thuillot, W., Baransky, A., Devyatkin, A.V., Bashakova, E.A., Rusov, S.A., Gorshanov, D.L., Shulga, O.V., Sybiryakova, Y., Kozyryev, Y., Kulichenko, N. Vovk, V. (2014): Gaia-FUN-SSO: Triangulation Observations of 2014 HQ124, Proceedings of the International Workshop held 24-26 November, 2014 at the Paris Observatory, available online here.
- Skokos, H., Gerlach, E., Bodyfelt, J.D., Papamikos, G., Eggl, S. (2014): High order three part split symplectic integrators: Efficient techniques for the long time simulation of the disordered discrete nonlinear Schrödinger equation, Physics Letters A, vol. 378, Issues 26-27, Pages 1809-1815, available online here.
- Anglada-Escudé, G., Arriagada, P., Tuomi, M., Zechmeister, M., Jenkins, J.S., Ofir, A., Dreizler, S., Gerlach, E., Marvin, C.J., Reiners, A., Jeffers, S.V., Butler, R.P., Vogt, S.S. Amado, P.J., Rodríguez-López, C., Berdiñas, Z.S., Morin, J., Crane, J.D., Shectman, S.A., Thompson, I.B., Díaz, M., Rivera, E., Sarmiento, L.F., Jones H.R.A. (2014): Two planets around Kapteyn's star : a cold and a temperate super-Earth orbiting the nearest halo red-dwarf, MNRAS, vol.443, Issue 1, p.L89-L93, also available as arXiv-preprint.
2013
- Anglada-Escude, G., Tuomi, M., Gerlach, E., Barnes, R., Heller, R., Jenkins, J.S., Wende, S., Vogt, S.S., Butler, P.R., Reiners, A., Jones, H.R.R. (2013): A dynamically-packed planetary system around GJ667C with three super-Earths in its habitable zone, A&A, vol. 556, A126, (pdf).
- Gerlach E., Eggl S., Skokos Ch., Bodyfelt J.D., Papamikos G. (2013): High order three part split symplectic integration schemes, in "Proceedings of the 10th HSTAM International Congress on Mechanics", also available as arXiv-preprint.
- Tuomi, M., Anglada-Escude, G., Gerlach, E., Jones, H.R.R., Reiners, A., Rivera, E.J., Vogt, S.S., Butler, P.R. (2013): Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307, A&A, vol. 549, A48, also available as arXiv-preprint.
2012
- Gerlach, E., Klioner, S., Soffel, M. (2012): Consistent Modeling of Geodetic Precession in Earth Rotation, International Association of Geodesy Symposia, 137, pp. 307–311
- Gerlach, E., Haghighipour, N. (2012): Can GJ 876 host four planets in resonance?, Cel. Mech. Dyn. Astron., 117, issue 1, 35-47, also available as online first.
- Gerlach, E., Eggl, S., Skokos, Ch. (2011): Efficient integration of the variational equations of multi-dimensional Hamiltonian systems: Application to the Fermi-Pasta-Ulam lattice, Int. J. Bifurcation Chaos, vol. 22, issue 9, (pdf).
2011
- Gerlach, E., Skokos, C. (2012): Comparing the efficiency of numerical techniques for the integration of variational equations, Discrete and Continuous Dynamical Systems- Series A, (SUPPL.), pp. 475–484
2010
- Soffel, M.H., Klioner, S.A., Gerlach, E. (2010): About the MacCullagh Relations in Relativity, In: New Challenges for reference systems and numerical standards in astronomy, N. Capitaine (ed.), Proc. of Les Journées'2010, Paris, 255-257.
- Skokos, Ch., Gerlach, E. (2010): Numerical integration of variational equations, Phys. Rev. E, 82, 036704, also available as arXiv-preprint.
- Gerlach, E., Skokos, Ch. (2010): Comparing the efficiency of numerical techniques for the integration of variational equations, Proceedings of the 8th AIMS International Conference on Dynamical Systems 475-484, (pdf.)
2009
- Klioner, S.A., Gerlach, E., Soffel, M. (2009): Relativistic aspects of rotational motion of celestial bodies. In: Relativity in Fundamental Astronomy, Proc. of the IAU Symposium 261, S. Klioner, K. Seidelmann, M. Soffel(eds.) Cambridge University Press, Cambridge, also available as arXiv-preprint.
- Gerlach, E., Klioner, S., Soffel, M. (2009): Consistent modelling of the geodetic precession in Earth rotation, VII Hotine-Marussi Symposium, Rome 6-10 July 2009, IAG Series, Springer, Vol. 137, also available as arXiv-preprint.
2008
- Sidlichovsky, M., Gerlach, E. (2008): Secular evolution of exoplanetary systems and close encounters, Exoplanets: Detection, Formation and Dynamics, Proceedings of the International Astronomical Union, IAU Symposium, Volume 249, p. 479-484.
- Gerlach, E. (2008): On the Numerical Computability of Asteroidal Lyapunov Times, Proceedings of the International Conference on the Dynamics of Celestial Bodies, Lithoro 23 – 26 June 2008, p. 125-128, also available as arXiv-preprint.
presentations
2014
- 15.04.; Lehrerfortbildung des Freistaates Sachsen, Max Planck Institute for the Physics of Complex Systems, Dresden, Germany; "Kosmische Kleinkörper in unserem Sonnensystem".
2013
- 19.06.; Methods of Chaos Detection and Predictability: Theory and Applications, Max Planck Institute for the Physics of Complex Systems, Dresden, Germany; "On the numerical integration of ariational equations".
2012
- 09.10.; Geodätische Woche, Hannover, Germany; "Eine neue numerische Theorie von Präzession und Nutation der Erde".
- 30.08.; IAU General Assembly - Comission 19, Beijing, China; "A new theory of precession and nutation for the Earth".
- 28.08.; IAU General Assembly - Joint Discussion 7, Beijing, China; "A new numerical theory of Earth rotation".
- 22.02.; Meeting of research group FOR 584, Frankfurt/M., Germany; "Statusreport P3: Die elastische Erde".
2011
- 24.02.; Meeting of research group FOR 584, Vienna, Austria; "Geodätische Präzession für Körper des Sonnensystems; Stand der Präzessions-/Nutationstheorie einer nicht-starren Erde".
- 24.03.: 8th Alexander von Humboldt Colloquium for Celestial Mechanic, Bad Hofgastein, Austria;"On the numerical integration of variational equations"
2010
- 13.01.; Geodätisches Doktorandenseminar, TU Dresden; "Eine relativistische Theorie der Präzession und Nutation einer starren Erde".
- 12.03.; Lohrmann seminar; "Different ways to approach the non-rigid Earth".
- 22.03.; Meeting of research group FOR 584, Berlin; "Parameterwahl für das relativistische Erdmodell".
- 04.05.; EGU General Assembly, Vienna; "A consistent relativistic theory of Earth rotation".
- 10.09.; Lohrmann seminar; "The numerical integration of variational equations".
2009
- 23.10.; Lohrmann seminar; "Modelling the rotational motion of a rigid Earth in a relativistic framework - An overview".
- 29.10.; Meeting of research group FOR 584, Munich; "Projekt P3 - Relativistische Theorie der Präzessions- und Nutationsbewegung einer starren Erde".
2008
- 17.01.; Astrodynamic seminar, University of Vienna; "Säkulare Dynamik von Exoplaneten und nahe Begegnungen".
- 11.06.; Geodätisches Doktorandenforum, TU Dresden; "Chaos und Resonanzen in der Himmelsmechanik".
- 24.10.; Verteidigung der Dissertation, TU Dresden; "Stabilitätsuntersuchungen an Asteroidenbahnen in ausgewählten Bahnresonanzen des Edgeworth-Kuiper-Gürtels".
2007
- 19.01.; Lohrmann seminar; "Numerical simulation of chaotic systems in celestial mechanics".
- 23.02.; Lohrmann seminar; "Symplectic integration methods - An overview".
- 26.10.; EXOPLANETS: Detection, Formation and Dynamics, IAU Symposium No. 249, Oct. 22-26, 2007, Suzhou, China; "Secular evolution of exoplanetary systems and close encounters".
Poster
2009
- Klioner, S., Soffel, M., Gerlach, E.; EGU General Assembly 2009, Vienna; "Consistent modelling of the geodetic precession in Earth rotation".
- Gerlach, E., Klioner, S., Soffel, M.; VII Hotine-Marussi Symposium, Rome; "Consistent modelling of the geodetic precession in Earth rotation".
- S. Klioner, E. Gerlach, M. Soffel; CELMEC V, Viterbo; "Consistent relativistic theory of Earth rotation".
- Gerlach, E., Skokos, H.; CELMEC V, Viterbo; "Some aspects of the numerical integration of variational equations".
Referee for
- Applied Numerical Mathematics
- Artificial Satellites, Journal of Planetary Geodesy
- Celestial Mechanics and Dynamical Astronomy
- Communications in Nonlinear Science and Numerical Simulation
- International Journal of Bifurcation and Chaos