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School of Physical and Chemical Sciences

Dr Sijme-Jan Paardekooper

Sijme-Jan

Royal Society University Research Fellow and Senior Lecturer

Email: s.j.paardekooper@qmul.ac.uk
Telephone: 020 7882 6575
Room Number: G. O. Jones Building, Room 503

Profile

I am a Royal Society University Research Fellow and Senior Lecturer at Queen Mary, University of London. I am interested in figuring out how planets form, both in the Solar system and beyond. My research therefore focuses on discs around young stars, which are thought to be the birthplaces of planets. I study the various physical processes involved using state-of-the-art numerical methods.

I completed my PhD at Leiden University, in the Netherlands, in 2006. This was followed by a stint at the Department of Applied Mathematics and Theoretical Physics in Cambridge, first as a research associate, then as an STFC postdoctoral fellow, and finally as a Royal Society URF. I joined Queen Mary in 2013.

Teaching

Extrasolar Planets and Astrophysical Discs (SPA7009)

Over the past 25 years, roughly 3500 (!) planets have been discovered orbiting stars other than our Sun. Planets appear to be almost everywhere we look: from our nearest neighbour star, to stars invisible to the naked eye; orbits range from extremely close ('Hot Jupiters') to extremely wide (~100 Astronomical Units). The most common planet in our galactic neighbourhood may well be a planet that we do not have in the Solar System: a Super-Earth. All these surprising discoveries make us think about how this zoo of extrasolar planets was formed.

Young stars are known to be surrounded by discs of gas and dust. These are thought to be the sites of planet formation. In order to understand the formation of planets, both in the Solar System and beyond, we have to understand the dynamics of astrophysical discs. Such discs play in many astrophysical systems, such as Cataclysmic Variables, Active Galactic Nuclei, around planets (Saturn!). This makes them interesting objects of study in their own right.

Research

Research Interests:

Extrasolar Planets

The population of planets around stars other than our Sun has thrown a lot of surprises at us: Hot Jupiters, Super-Earth, planets in close binaries, circumbinary planets, and many more types of planetary systems very much unlike our own Solar system. My research focuses on trying to understand this zoo of exoplanets by looking at how they formed: in accretion discs around young stars.

Protoplanetary discs

Discs around young stars consist of gas and, initially, tiny dust particles that can be found in the interstellar medium. These tiny dust particles will have to grow 14 orders of magnitude to become Earth-like or even giant planets. I study the important processes for growing planets and shaping planetary systems with the help of computer simulations.

Numerical hydrodynamics

Protoplanetary discs consist, at least initially, for 99% of gas. Computer simulations of protoplanetary discs therefore solve the equations of hydrodynamics. Part of my research is to try and develop new techniques for solving these equations, both on traditional CPUs and graphics cards.

Publications

    • Lovascio F, Paardekooper S-J, McNally C (2022), Dynamics of Dusty Vortices II: Stability of 2D dust laden vortices $nameOfConference

    • Lovascio F, Paardekooper S-J, McNally C (2022), Dynamics of dusty vortices – II. Stability of 2D dust-laden vortices $nameOfConference


    • Paardekooper S-J, Dong R, Duffell P et al. (2022), Planet-Disk Interactions $nameOfConference


    • Paardekooper S-J, McNally CP, Lovascio F (2021), Polydisperse Streaming Instability II. Methods for solving the linear stability problem $nameOfConference


    • McNally CP, Lovascio F, Paardekooper S-J (2021), Polydisperse Streaming Instability III. Dust evolution encourages fast instability $nameOfConference


    • Paardekooper S-J, McNally CP, Lovascio F (2021), Polydisperse Streaming Instability II. Methods for solving the linear stability problem $nameOfConference


    • McNally CP, Lovascio F, Paardekooper S-J (2021), Polydisperse Streaming Instability III. Dust evolution encourages fast instability $nameOfConference


    • Paardekooper SJ, McNally CP, Lovascio F (2020), Polydisperse streaming instability - I. Tightly coupled particles and the terminal velocity approximation $nameOfConference


    • Paardekooper S-J, McNally CP, Lovascio F (2020), Polydisperse Streaming Instability I. Tightly coupled particles and the terminal velocity approximation $nameOfConference


    • Lovascio F, Paardekooper S-J (2020), Erratum: Dynamics of Dusty Vortices I: Extensions and limitations of the terminal velocity approximation $nameOfConference


    • McNally CP, Nelson RP, Paardekooper S-J et al. (2020), Low-mass planet migration in three-dimensional wind-driven inviscid discs: a negative corotation torque $nameOfConference


    • McNally CP, Nelson RP, Paardekooper S-J et al. (2020), Low-mass planet migration in three dimensional wind-driven inviscid discs: a negative corotation torque $nameOfConference


    • Hallam PD, Paardekooper S-J (2019), Constraining the masses of planets in protoplanetary discs from the presence or absence of vortices - comparison with ALMA observations $nameOfConference


    • Hallam P, Paardekooper S-J (2019), Constraining the masses of planets in protoplanetary discs from the presence or absence of vortices -- Comparison with ALMA observations $nameOfConference


    • Lovascio F, Paardekooper SJ (2019), Dynamics of dusty vortices - I. Extensions and limitations of the terminal velocity approximation $nameOfConference


    • McNally CP, Nelson RP, Paardekooper S-J (2019), Multiplanet systems in inviscid discs can avoid forming resonant chains $nameOfConference


    • Lovascio F, Paardekooper S-J (2019), Dynamics of Dusty Vortices I: Extensions and limitations of the terminal velocity approximation $nameOfConference


    • McNally CP, Nelson RP, Paardekooper S-J (2019), Multiplanet systems in inviscid discs can avoid forming resonant chains $nameOfConference


    • MCNALLY CP, NELSON RP, Paardekooper SJ et al. (2019), Migrating super-Earths in low viscosity discs: unveiling the roles of feedback, vortices and laminar accretion flows $nameOfConference


    • Paardekooper SJ, Ogilvie GI (2018), Local numerical simulations of warped discs $nameOfConference


    • Paardekooper S-J, Ogilvie G (2018), Local numerical simulations of warped discs $nameOfConference


    • McNally CP, Nelson RP, Paardekooper S-J et al. (2018), Migrating super-Earths in low-viscosity discs: unveiling the roles of feedback, vortices, and laminar accretion flows $nameOfConference


    • Hallam PD, Paardekooper S-J (2018), Investigating the possibility of reversing giant planet migration via gap edge illumination $nameOfConference


    • Hallam PD, Paardekooper S-J (2018), Investigating the possibility of reversing giant planet migration via gap edge illumination $nameOfConference


    • McNally CP, Nelson RP, Paardekooper S-J et al. (2018), Low mass planet migration in Hall-affected disks $nameOfConference


    • McNally CP, Nelson RP, Paardekooper SJ et al. (2018), Low mass planet migration in Hall-affected disks ASTRONUM 2017


    • MCNALLY CP, NELSON RP, Paardekooper S-J (2018), Low mass planet migration in magnetically torqued dead zones - II. Flow-locked and runaway migration, and a torque prescription $nameOfConference


    • McNally CP, Nelson RP, Paardekooper S-J (2018), Low mass planet migration in magnetically torqued dead zones - II. Flow-locked and runaway migration, and a torque prescription $nameOfConference


    • Paardekooper SJ, Johansen A (2018), Giant Planet Formation and Migration $nameOfConference


    • Paardekooper S-J, Johansen A (2018), Giant Planet Formation and Migration $nameOfConference


    • Riols A, Latter H, Paardekooper S-J (2017), Gravitoturbulence and the excitation of small-scale parametric instability in astrophysical discs $nameOfConference


    • Paardekooper S (2017), Multidimensional upwind hydrodynamics on unstructured meshes using Graphics Processing Units I. Two-dimensional uniform meshes $nameOfConference


    • Hallam PD, Paardekooper S-J (2017), The role of gap edge instabilities in setting the depth of planet gaps in protoplanetary discs $nameOfConference


    • McNally CP, Nelson RP, Paardekooper S-J et al. (2017), Low mass planet migration in magnetically torqued dead zones - I. Static migration torque $nameOfConference


    • McNally CP, Nelson RP, Paardekooper SJ et al. (2017), Low mass planet migration in magnetically torqued dead zones – I. Static migration torque $nameOfConference


    • Riols A, Latter H, Paardekooper S-J (2017), Gravito-turbulence and the excitation of small-scale parametric instability in astrophysical discs $nameOfConference


    • Hallam P, Paardekooper S-J (2017), The role of gap edge instabilities in setting the depth of planet gaps in protoplanetary discs $nameOfConference


    • Paardekooper S-J (2017), Multidimensional upwind hydrodynamics on unstructured meshes using Graphics Processing Units I. Two-dimensional uniform meshes $nameOfConference


    • Coleman GAL, Nelson RP, Paardekooper SJ et al. (2017), Exploring plausible formation scenarios for the planet candidate orbiting Proxima Centauri $nameOfConference


    • Anglada-Escudé G, Amado PJ, Barnes J et al. (2016), A terrestrial planet candidate in a temperate orbit around Proxima Centauri $nameOfConference


    • ANGLADA ESCUDE G, Nelson RP, Coleman G et al. (2016), A terrestrial planet candidate in a temperate orbit around Proxima Centauri $nameOfConference


    • Coleman GAL, Nelson RP, Paardekooper S-J et al. (2016), Exploring plausible formation scenarios for the planet candidate orbiting Proxima Centauri $nameOfConference


    • Kraus S, Monnier JD, Ireland MJ et al. (2016), Planet Formation Imager (PFI): science vision and key requirements $nameOfConference


    • Lines S, Leinhardt ZM, Baruteau C et al. (2016), Modelling circumbinary protoplanetary disks II. Gas disk feedback on planetesimal dynamical and collisional evolution in the circumbinary systems Kepler-16 and 34 $nameOfConference


    • Ivanov PB, Papaloizou JCB, Paardekooper S-J et al. (2016), The evolution of a supermassive retrograde binary embedded in an accretion disk $nameOfConference


    • Lines S, Leinhardt ZM, Baruteau C et al. (2016), Modelling circumbinary protoplanetary disks: II. Gas disk feedback on planetesimal dynamical and collisional evolution in the circumbinary systems Kepler-16 and 34 $nameOfConference


    • Kraus S, Monnier JD, Ireland MJ et al. (2016), Planet Formation Imager (PFI): Science vision and key requirements $nameOfConference


    • Lines S, Leinhardt ZM, Baruteau C et al. (2015), Modelling circumbinary protoplanetary disks: I. Fluid simulations of the Kepler-16 and 34 systems $nameOfConference


    • Lines S, Leinhardt ZM, Baruteau C et al. (2015), Modelling circumbinary protoplanetary disks: I. Fluid simulations of the Kepler-16 and 34 systems $nameOfConference


    • Ivanov PB, Papaloizou JCB, Paardekooper S-J et al. (2015), The Evolution of a Supermassive Retrograde Binary Embedded in an Accretion Disk $nameOfConference


    • Juhász A, Benisty M, Pohl A et al. (2015), Spiral arms in scattered light images of protoplanetary discs: Are they the signposts of planets? $nameOfConference


    • Ivanov PB, Papaloizou JCB, Paardekooper SJ et al. (2015), The evolution of a binary in a retrograde circular orbit embedded in an accretion disk $nameOfConference


    • Baruteau C, Crida A, PAARDEKOOPER S et al. (2014), Planet-Disk Interactions and Early Evolution of Planetary Systems $nameOfConference


    • Juhasz A, Benisty M, Pohl A et al. (2014), Spiral arms in scattered light images of protoplanetary discs: Are they the signposts of planets? $nameOfConference


    • Paardekooper S-J (2014), Dynamical corotation torques on low-mass planets $nameOfConference


    • Ivanov PB, Papaloizou JCB, Paardekooper S-J et al. (2014), The evolution of a binary in a retrograde circular orbit embedded in an accretion disk $nameOfConference


    • Paardekooper S-J (2014), Dynamical corotation torques on low-mass planets $nameOfConference


    • Lines S, Leinhardt ZM, Paardekooper S et al. (2014), Forming circumbinary planets: N-body simulations of kepler-34 $nameOfConference


    • Lines S, Leinhardt ZM, Paardekooper S-J et al. (2014), Forming Circumbinary Planets: N-body Simulations of Kepler-34 $nameOfConference


    • Rice WKM, Paardekooper SJ, Forgan DH et al. (2014), Convergence of simulations of self-gravitating accretion discs - II. Sensitivity to the implementation of radiative cooling and artificial viscosity $nameOfConference


    • Baruteau C, Crida A, Paardekooper S-J et al. (2013), Planet-Disc Interactions and Early Evolution of Planetary Systems $nameOfConference


    • Rice WKM, Paardekooper S-J, Forgan DH et al. (2013), Convergence of simulations of self-gravitating accretion discs II: Sensitivity to the implementation of radiative cooling and artificial viscosity $nameOfConference


    • Mulders GD, Paardekooper SJ, Panić O et al. (2013), Planet or brown dwarf? Inferring the companion mass in HD 100546 from the wall shape using mid-infrared interferometry $nameOfConference


    • Mulders GD, Paardekooper S-J, Panić O et al. (2013), Planet or Brown Dwarf? Inferring the Companion Mass in HD 100546 from the Wall Shape using Mid-Infrared Interferometry $nameOfConference


    • Paardekooper SJ, Lesur G, Papaloizou JCB (2013), Vortex migration in protoplanetary discs $nameOfConference


    • Paardekooper S-J, Rein H, Kley W (2013), The formation of systems with closely spaced low-mass planets and the application to Kepler-36 $nameOfConference


    • Paardekooper SJ, Rein H, Kley W (2013), The formation of systems with closely spaced low-mass planets and the application to Kepler-36 $nameOfConference


    • Paardekooper SJ, Leinhardt ZM, Thébault P et al. (2012), How not to build tatooine: The difficulty of in situ formation of circumbinary planets Kepler 16b, Kepler 34b, and Kepler 35b $nameOfConference


    • Paardekooper S-J, Leinhardt ZM, Thebault P et al. (2012), How not to build Tatooine: the difficulty of in situ formation of circumbinary planets Kepler 16b, Kepler 34b and Kepler 35b $nameOfConference


    • Paardekooper SJ (2012), Numerical convergence in self-gravitating shearing sheet simulations and the stochastic nature of disc fragmentation $nameOfConference


    • Paardekooper S-J (2012), Numerical convergence in self-gravitating shearing sheet simulations and the stochastic nature of disc fragmentation $nameOfConference


    • Paardekooper SJ, Baruteau C, Meru F (2011), Numerical convergence in self-gravitating disc simulations: Initial conditions and edge effects $nameOfConference


    • Paardekooper S-J, Baruteau C, Meru F (2011), Numerical convergence in self-gravitating disc simulations: initial conditions and edge effects $nameOfConference


    • Baruteau C, Meru F, Paardekooper S-J (2011), Rapid inward migration of planets formed by gravitational instability $nameOfConference


    • Nelson RP, Paardekooper SJ (2011), Numerical Simulations of Disc-Planet Interactions $nameOfConference


    • Paardekooper SJ, Baruteau C, Kley W (2011), A torque formula for non-isothermal Type I planetary migration-II. Effects of diffusion $nameOfConference


    • Baruteau C, Meru F, Paardekooper SJ (2011), Rapid inward migration of planets formed by gravitational instability $nameOfConference


    • Paardekooper SJ, Lesur G, Papaloizou JCB (2010), Vortex migration in protoplanetary disks $nameOfConference


    • Paardekooper S-J, Lesur G, Papaloizou JCB (2010), Vortex migration in protoplanetary disks $nameOfConference


    • Paardekooper S-J, Baruteau C, Kley W (2010), A torque formula for non-isothermal Type I planetary migration - II. Effects of diffusion $nameOfConference


    • Lyra W, Paardekooper S-J, Mac Low M-M (2010), Orbital migration of low-mass planets in evolutionary radiative models: Avoiding catastrophic infall $nameOfConference


    • Paardekooper SJ, Leinhardt ZM (2010), Planetesimal collisions in binary systems $nameOfConference


    • Paardekooper S-J, Leinhardt ZM (2010), Planetesimal collisions in binary systems $nameOfConference


    • Paardekooper S-J, Baruteau C, Crida A et al. (2010), A torque formula for non-isothermal type i planetary migration - I. Unsaturated horseshoe drag $nameOfConference


    • Lyra W, Paardekooper SJ, Mac Low MM (2010), Orbital migration of low-mass planets in evolutionary radiative models: Avoiding catastrophic infall $nameOfConference


    • Paardekooper SJ (2009), Disc-planet interactions in subkeplerian discs $nameOfConference


    • Paardekooper S, Baruteau C, Crida A et al. (2009), A torque formula for non-isothermal Type I planetary migration - I. Unsaturated horseshoe drag $nameOfConference


    • Paardekooper S-J (2009), Disc-planet interactions in sub-keplerian discs $nameOfConference


    • Paardekooper S-J, Papaloizou JCB (2009), On the width and shape of the corotation region for low-mass planets $nameOfConference


    • Paardekooper S-J, Papaloizou JCB (2009), On corotation torques, horseshoe drag and the possibility of sustained stalled or outward protoplanetary migration $nameOfConference


    • Paardekooper S-J, Papaloizou JCB (2009), On the width and shape of the corotation region for low-mass planets $nameOfConference


    • Paardekooper S-J, Papaloizou JCB (2009), On corotation torques, horseshoe drag and the possibility of sustained stalled or outward protoplanetary migration $nameOfConference


    • Paardekooper SJ, Papaloizou JCB (2009), On the width and shape of the corotation region for low-mass planets $nameOfConference


    • Paardekooper S-J, Papaloizou JCB (2008), On disc protoplanet interactions in a non-barotropic disc with thermal diffusion $nameOfConference


    • Paardekooper S-J, Papaloizou JCB (2008), On disc protoplanet interactions in a non-barotropic disc with thermal diffusion $nameOfConference


    • Paardekooper S-J, Thebault P, Mellema G (2008), Planetesimal and gas dynamics in binaries $nameOfConference


    • Paardekooper SJ, Mellema G (2008), Growing and moving low-mass planets in non-isothermal disks $nameOfConference


    • Paardekooper S-J, Thébault P, Mellema G (2008), Planetesimal and gas dynamics in binaries $nameOfConference


    • Paardekooper S-J, Mellema G (2007), Growing and moving low-mass planets in non-isothermal disks $nameOfConference


    • Paardekooper SJ (2007), Dust accretion onto high-mass planets $nameOfConference


    • Paardekooper SJ, Mellema G (2006), Halting type i planet migration in non-isothermal disks $nameOfConference


    • Paardekooper S-J (2006), Dust accretion onto high-mass planets $nameOfConference


    • Paardekooper S-J, Mellema G (2006), Halting Type I planet migration in non-isothermal disks $nameOfConference


    • de Val-Borro M, Edgar RG, Artymowicz P et al. (2006), A comparative study of disc-planet interaction $nameOfConference


    • Paardekooper SJ, Mellema G (2006), Dust flow in gas disks in the presence of embedded planets $nameOfConference


    • de Val-Borro M, Edgar RG, Artymowicz P et al. (2006), A comparative study of disc-planet interaction $nameOfConference


    • Paardekooper SJ, Mellema G (2006), RODEO: A new method for planet-disk interaction $nameOfConference


    • Paardekooper S-J, Mellema G (2006), Dust flow in gas disks in the presence of embedded planets $nameOfConference


    • Paardekooper S, Mellema G (2005), RODEO: a new method for planet-disk interaction $nameOfConference


    • Paardekooper SJ, Mellema G (2004), Planets opening dust gaps in gas disks $nameOfConference


    • Paardekooper S-J, Mellema G (2004), Planets opening dust gaps in gas disks $nameOfConference


    • Paardekooper SJ, Van Der Hucht KA, Van Genderen AM et al. (2003), New type of brightness variations of the colliding wind WO4 + O5((f)) binary WR 30a $nameOfConference


    • Paardekooper SJ, Veen PM, Van Genderen AM et al. (2002), On the variability of the visual binary WR 86 WC7 with a β-Cephei companion $nameOfConference


Supervision

This is not an exhaustive list and I would be happy to discuss other project possibilities.

 

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