Contact

Dr. C.W. Ormel
Anton Pannekoek Institute, University of Amsterdam
Science Park 904, C4.149
1098 XH Amsterdam, The Netherlands
T: +31(0)20-525-8347
c.w.ormel AT uva DOT nl




Research Interests
Planet formation:
Analytical and numerical modelling of the collisional evolution
(from dust particles to boulders, planetesimals to planets)
Particle-gas dynamics:
Turbulence: particle relative motions; particle transport and accretion
Interstellar medium:
Dust coagulation in dense clouds; opacities



Employments
2017—2017 Visiting Professor
Tokyo Institute of Technology, Tokyo, Japan
2014—Present Research group leader Origins of super-Earths
University of Amsterdam (UvA), Amsterdam, The Netherlands
2011—2014 Hubble Fellow
University of California, Berkeley CA USA
2008—2011 Alexander von Humboldt Fellow
Max-Planck-Institute for Astronomy, Heidelberg Germany
2004—2008 PhD student
University of Groningen, Netherlands
1999—2004 Undergraduate (Astronomy)
University of Groningen, Netherlands



Meetings, conferences, and talks
October 2018 Take a Closer Look: The innermost region of protoplanetary discs and its connection to the origin of planets
Garching
February 2018 Water during planet formation and evolution
Zurich
December 2017 Exoplanets and planet formation
Tsung-Dao Lee Institute, Shanghai
November 2017 Planet formation around snowlines
Tokyo
October 2017 University of Bern
September 2017 Queen Mary University London
April 2017 Ringberg Workshop on Atmospheres of Disks and Planets
Ringberg Castle Germany
March 2017 University of Zurich
March 2017 University of Nijmegen
February 2017 University of Tuebingen
January 2017 University of Cambridge
July 2016 New directions in planet formation
Leiden, Lorentz center workshop
July 2016 Exoplanets I
Davos, Switzerland
June 2015 Disk dynamics and planet formation
Larnaka, Cyprus
May 2015 University of Bristol
April 2015 University of Tuebingen
November 2014 Observatoire de la Cote d'Azur, Nice France
June 2014 Observatoire de la Cote d'Azur, Nice France
April 2014 Jet Propulsion Laboratories, Pasadena CA USA
July 2013 Dust growth in star and planet forming environments
Heidelberg, Germany
July 2013 Protostars and Planets VI
Heidelberg, Germany
June 2013 IAU symposium 299: Exploring the formation and evolution of planetary systems
Victoria, British Columbia, Canada
March 2013 Earth-life sciences institute (ELSI), Tokyo
Tokyo Institute of Technology, Tokyo, Japan
March 2013 Hubble symposium, Space Telescope and Science Institute, Baltimore
Space Telescope Science Institue, Baltimore MA USA
January 2013 SWRI and JILA, Boulder CO
December 2012 ISSI meeting on Planetary Population Synthesis: Interpreting Present and Future Space Data
Bern Switzerland
October 2012 San Francisco State University
September 2012 Planet Formation and Evolution 2012
Ludwig-Maximilians-Universität München Germany
March 2012 From atoms to pebbles: Herschel's view of star and planet formation
CNES, Grenoble France
March 2012 Hubble symposium, Space Telescope and Science Institute, Baltimore
Space Telescope Science Institue, Baltimore MA USA
January 2012 Jet Propulsion Laboratories, Pasadena CA USA
December 2011 First Kepler Science Conference
NASA Ames Research Park, Moffett Field CA USA
July 2011 Jena Germany
June 2011 Ringberg Workshop on Geophysical and Astrophysical Fluid flow: Baroclinic Instability and Protoplanetary Accretion Disks
Ringberg Castle Germany
April 2011 Tübingen Germany
February 2011 Planet Formation and Evolution 2011
University of Göttingen, Germany
November 2010 Ringberg Castle Workshop on Planetary Population Synthesis: The Predictive Power of Planet Formation Theory
Ringberg Castle, Germany
September 2010 German-Japanese workshop on dust in protoplanetary systems
Jena Germany
June 2010 Evolving theory of planet formation
Ishigaki island Okinawa Japan
March 2009 Planet Formation and Evolution 2009
Eberhard Karls Universität Tübingen Germany
December 2009 Winter workshop on planetary astrophysics
Kavli insitute for Astronomy and Astrophysics, Beijing, China
September 2009 Planetesimal formation workshop
Isaac Newton Institute for Mathematical Sciences, Cambridge UK
January 2007 NASA Ames Research Center
Moffett Field CA USA
October 2005 Protostars and Planets V
Hilton Waikoloa Village, Kona Hawaii
June 2005 Vatican Observatory Summer School in Astronomy and Astrophysics
CastelGandolfo Italy



List of publications
D. Schoonenberg; B. Liu; C.W. Ormel; C. Dorn
Pebble-driven planet formation for TRAPPIST-1 and other compact systems
Accepted for publication in Astronomy and Astrophysics

B. Liu; C.W. Ormel; A. Johansen
Growth after the streaming instability. From planetesimal accretion to pebble accretion
Astronomy and Astrophysics, Volume 624, A114 (2019)

C.W. Ormel, M. Min
ARCiS framework for exoplanet atmospheres. The cloud transport model
Astronomy and Astrophysics, Volume 622, A121 (2019)

D. Schoonenberg; C.W. Ormel; S. Krijt
A Lagrangian model for dust evolution in protoplanetary disks: formation of wet and dry planetesimals at different stellar masses
Astronomy and Astrophysics, Volume 620, A134 (2018)

L. Klarmann; C.W. Ormel; C.Dominik
Radial and vertical dust transport inhibit refractory carbon depletion in protoplanetary disks
Astronomy and Astrophysics, Volume 618, L1 (2018)

B. Liu; C.W. Ormel
Catching drifting pebbles I. Enhanced pebble accretion efficiencies for eccentric planets
Astronomy and Astrophysics, Volume 615, A138 (2018)

C.W. Ormel; B. Liu
Catching drifting pebbles II. A stochastic equation of motions for pebbles
Astronomy and Astrophysics, Volume 615, A178 (2018)

M.G. Brouwers; A. Vazan; C.W. Ormel
How cores grow by pebble accretion. I. Direct core growth
Astronomy and Astrophysics, Volume 611, A65 (2018)

A. Popovas; A. Nordlund; J.P. Ramsey; C.W. Ormel
Pebble dynamics and accretion onto rocky planets. I. Adiabatic and convective models
Monthly Notices of the Royal Astronomical Society, Volume 479, 5136 (2018)

A. Vazan; C.W. Ormel; C. Dominik
Effect of Core Cooling on the Radius of Sub-Neptune Planets
Astronomy and Astrophysics, Volume 610, L1 (2017)

B. Liu; C.W. Ormel
Dynamical rearrangement of super-Earths during disk dispersal II. Assessment of the magnetospheric rebound model for planet formation scenarios
Astronomy and Astrophysics, Volume 606, A66 (2017)

D. Schoonenberg; S. Okuzumi; C.W. Ormel
What pebbles are made of: Interpretation of the V883 Ori disk
Astronomy and Astrophysics, Volume 605, L2 (2017)

N.P. Cimerman; R. Kuiper; C.W. Ormel
Hydrodynamics of embedded planets' first atmospheres - III. The role of radiation transport for super-Earth planets
Monthly Notices of the Royal Astronomical Society, Volume 471, 4662 (2017)

C.W. Ormel; B. Liu; D. Schoonenberg
Formation of TRAPPIST-1 and other compact systems
Astronomy and Astrophysics, Volume 604, A1 (2017)

C.W. Ormel
The emerging paradigm of pebble accretion
Formation, Evolution, and Dynamics of Young Solar Systems, Astrophysics and Space Science Library, Volume 445. Springer International Publishing AG, (2017)

D. Schoonenberg; C.W. Ormel
Planetesimal formation near the snowline: in or out?
Astronomy and Astrophysics, Volume 602, A21 (2017)

B. Liu; C.W. Ormel; D.N.C. Lin
Dynamical rearrangement of super-Earths during disk dispersal I. Outline of the magnetospheric rebound model
Astronomy and Astrophysics, Volume 601, A15 (2017)

H. Homann; T. Guillot; J. Bec; C.W. Ormel; S. Ida; P. Tanga
Effect of turbulence on collisions of dust particles with planetesimals in protoplanetary disks
Astronomy and Astrophysics, Volume 589, A129 (2016)

S. Krijt; C.W. Ormel; C. Dominik; A.G.G.M. Tielens
A panoptic model for planetesimal formation and pebble delivery
Astronomy and Astrophysics, Volume 586, A20 (2016)

R.G. Visser; C.W. Ormel
On the growth of pebble-accreting planetesimals
Astronomy and Astrophysics, Volume 586, A66 (2016)

C.W. Ormel; J.-M. Shi; R. Kuiper
Hydrodynamics of Embedded Planets' First Atmospheres. II. A Rapid Recycling of Atmospheric Gas
Monthly Notices of the Royal Astronomical Society, Vol. 447...3512 (2015)

S. Krijt; C.W. Ormel; C. Dominik; A.G.G.M. Tielens
Erosion and the limits to planetesimal growth
Astronomy and Astrophysics, Vol. 574...A83 (2015)

C.W. Ormel; R. Kuiper; J.-M. Shi
Hydrodynamics of Embedded Planets' First Atmospheres. I. A Centrifugal Growth Barrier for 2D Flows.
Monthly Notices of the Royal Astronomical Society, Vol. 446...1026 (2015)

E.J. Lee; E.I. Chiang; C.W. Ormel
Make Super-Earths, Not Jupiters: Accreting Nebular Gas onto Solid Cores at 0.1 AU and Beyond
The Astrophysical Journal, Vol. 797...95 (2014)

T. Guillot; S. Ida; C.W. Ormel
On the filtering and processing of dust by planetesimals. I. Derivation of collision probabilities for non-drifting planetesimals
Astronomy and Astrophysics, Vol. 572...A72 (2014)

C.W. Ormel
An Atmospheric Structure Equation for Grain Growth
The Astrophysical Journal Letters, Vol. 789...L18 (2014)

A. Bonsor; S.N. Raymond; J.-C. Augereau; C.W. Ormel
Planetesimal-driven migration as an explanation for observations of high levels of warm, exozodiacal dust
Monthly Notices of the Royal Astronomical Society, Vol. 441...2380 (2014)

J. Steinacker; C.W. Ormel; M. Andersen; A. Bacmann
Coreshine in L1506C - Evidence for a primitive big-grain component or indication for a turbulent core history?
Astronomy and Astrophysics, Vol. 564...A96 (2014)

C.W. Ormel; S. Okuzumi
The fate of planetesimals in turbulent disks with dead zones. II. The viability of runaway growth
The Astrophysical Journal, Vol. 771...44 (2013)

S. Okuzumi; C.W. Ormel
The fate of planetesimals in turbulent disks with dead zones. I. The turbulent stirring recipe
The Astrophysical Journal, Vol. 771...43 (2013)

C.W. Ormel
The flow pattern past gravitating bodies
Monthly Notices of the Royal Astronomical Society, Vol. 428...3526 (2013)

F. Windmark; T. Birnstiel; C.W. Ormel; C.P. Dullemond
Breaking through: The effects of a velocity distribution on barriers to dust growth
Astronomy and Astrophysics, Vol. 544...L16 (2012)

C.W. Ormel; S. Ida; H. Tanaka
Migration rates due to scattering of planetesimals
The Astrophysical Journal, Vol 758... 80 (2012)

H. Kobayashi; C.W. Ormel; S. Ida
Rapid Formation of Saturn after Jupiter Completion
The Astrophysical Journal, Vol. 756...70 (2012)

C.W. Ormel; H. Kobayashi
Understanding how planets become massive? I. Description and validation of a new toy model
The Astrophysical Journal, Vol. 747...115 (2012)

A. Zsom; C.W. Ormel; C.P. Dullemond; T. Henning
The outcome of protoplanetary dust growth: pebbles, boulders, or planetesimals? III. Sedimentation driven coagulation inside the snow-line
Astronomy and Astrophysics, Volume 534, A73 (2011)

C.W. Ormel; M. Min; X. Tielens; C. Dominik; D. Paszun
Dust coagulation and fragmentation in molecular clouds. II. The opacity of the dust aggregate size distribution
Astronomy & Astrophysics, Volume 532, A43 (2011)

T. Birnstiel; C.W. Ormel; C.P. Dullemond
Dust size distributions in coagulation/fragmentation equilibrium: numerical solutions and analytical fits
Astronomy and Astrophysics, Volume 525, A11 (2011)

V. Ossenkopf; C.W. Ormel; R. Simon; K. Sun; J. Stutzki
Spectroscopic [C I] mapping of the infrared dark cloud G48.65-0.29
Astronomy and Astrophysics, Volume 525, A9 (2011)

C.W. Ormel; C.P. Dullemond; M. Spaans
Accretion among preplanetary bodies: the many faces of runaway growth
Icarus, Volume 210, Issue 1, p. 507-538 (2010)

C.W. Ormel; H.H. Klahr
The effect of gas drag on the growth of protoplanets—-Analytical expressions for the accretion of small bodies in laminar disks
Astronomy and Astrophysics, Volume 520, A43 (2010)

T. Birnstiel; L. Ricci; F. Trotta; C. P. Dullemond; A. Natta; L. Testi; C. Dominik; T. Henning; C.W. Ormel; A. Zsom
Testing the theory of grain growth and fragmentation by millimeter observations of protoplanetary disks
Astronomy and Astrophysics, Volume 516, L14 (2010)

C.W. Ormel; C.P. Dullemond; M. Spaans
A New Condition for the Transition from Runaway to Oligarchic Growth
The Astrophysical Journal Letters, 714, 103 (2010)

A. Zsom; C.W. Ormel; C. Güttler; J. Blum; C.P. Dullemond
The outcome of protoplanetary dust growth: pebbles, boulders, or planetesimals? II. Introducing the bouncing barrier
Astronomy and Astrophysics, Volume 513, A57 (2010)

C. Güttler; J. Blum; A. Zsom; C.W. Ormel; C.P. Dullemond
The outcome of protoplanetary dust growth: pebbles, boulders, or planetesimals?. I. Mapping the zoo of laboratory collision experiments
Astronomy and Astrophysics, Volume 513, A56 (2010)

C.W. Ormel; D. Paszun; C. Dominik; A.G.G.M. Tielens
Coagulation and fragmentation in molecular clouds: I. How collisions between dust aggregates alters the dust size distribution
Astronomy and Astrophysics, Volume 502...845 (2009)

C.W. Ormel; J.N. Cuzzi; A.G.G.M. Tielens
Co-Accretion of Chondrules and Dust in the Solar Nebula
The Astrophysical Journal, Volume 679...1588 (2008)

C.W. Ormel; M. Spaans
Monte Carlo Simulation of Particle Interactions at High Dynamic Range: Advancing beyond the Googol
The Astrophysical Journal, Volume 684...1291 (2008)

C.W. Ormel; J.N. Cuzzi
Closed-form expressions for particle relative velocities induced by turbulence
Astronomy and Astrophysics, Volume 466...413 (2007)

C.W. Ormel; M. Spaans; A.G.G.M. Tielens
Dust coagulation in protoplanetary disks: porosity matters
Astronomy and Astrophysics, Volume 461...215 (2007)

C.W. Ormel; R.F. Shipman; V. Ossenkopf; F.P. Helmich
The modelling of infrared dark cloud cores
Astronomy and Astrophysics, Volume 439...613 (2005)