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Joseph Cummings Professor of Physics
Northwestern University

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Frederic A. Rasio

RasioFred Rasio's research spans a wide range of topics in theoretical astrophysics, including: exoplanets and planet formation; the dynamics of dense stellar systems (globular clusters, galactic nuclei, young star clusters); hydrodynamic stellar interactions (stellar collisions and mergers, binary coalescence, common envelope evolution); and relativistic astrophysics (neutron stars and black holes, gravitational waves, relativistic star clusters, radio pulsars). His most recent work has focused on the dynamics of extrasolar planetary systems, gravitational wave sources for laser-interferometer detectors (LIGO, LISA), and the formation of massive black holes through stellar dynamical processes. Please see the web site of the Theoretical Astrophysics Group for more details and highlights of recent research results.

Background Photo Credit: HubbleSite

CV

ONLINE CV
FUNDING
PDF CV

Background Photo Credit: Hubble Space Telescope

Publications

Fifty most cited papers on NASA ADS
Papers on the NASA Astrophysics Data System (ADS)
Papers on the Astrophysics e-Prints Service [astro-ph]

Background Photo Credit: Chandra X-Ray Observatory

Students and Postdocs

Current Postdoctoral Associates
Current Graduate Students
Former Postdoctoral Associates
Former Graduate Students

 

CURRENT POSTDOCTORAL ASSOCIATES:


Fabio Antonini (Rochester Institute of Technology PhD '11)

Current Position:   CIERA Fellow
Research:   Galaxy evolution; stellar dynamics of dense stellar systems; computational astrophysics
Office:   Tech F221 
Phone:   (847) 467-6233
E-mail:   fabio.antonini@northwestern.edu
Publications:   NASA ADS

Sourav Chatterjee (Northwestern University PhD '10)

Current Position:   CIERA Fellow and Research Assistant Professor
Research:   Dynamics of extra solar planetary systems
Office:   Tech F223
Phone:   (847) 467-4722
E-mail:   sourav.chatterjee@northwestern.edu
Publications:   NASA ADS

 

CURRENT GRADUATE STUDENTS:


Kyle Kremer

Research:   Black holes in dense star clusters
Office:   Tech F220
Phone:   (847) 491-4661
E-mail:   KyleKremer2012@u.northwestern.edu
Publications:   NASA ADS

Josh Fixelle

Research:   Hydrodynamics of stellar and planetary collisions
Office:   Tech F226
Phone:   (847) 467-4791
E-mail:   JoshuaFixelle2014@u.northwestern.edu
Publications:   NASA ADS

Jason Hwang

Research:   Dynamical stability and collisional evolution of multi-planet systems
Office:   Tech F220
Phone:   (847) 491-4661
E-mail:   JasonHwang2014@u.northwestern.edu
Publications:   NASA ADS

Joel Schwartz

Research:   Astmospheres of extrasolar planets
Office:   Tech F220
Phone:   (847) 491-4661
E-mail:   JoelSchwartz2011@u.northwestern.edu
Publications:   NASA ADS

 

FORMER POSTDOCTORAL ASSOCIATES:


Francesca Valsecchi (Northwestern University PhD '12)

Current Position:   Senior Consultant at Clarity Solution Group
Research:   Tidal effects in hot-Jupiter systems
E-mail:   valsecchi.francesca@gmail.com
URL:   Francesca Valsecchi
Publications:   NASA ADS

Paul Kiel (Swinburne PhD '09)

Current Position:   Staff Scientist at Swinburne University Centre for Astrophysics and Supercomputing
Research:   Radio pulsars and X-ray binaries, binary star evolution and dynamics in dense star clusters
E-mail:   pdkiel@gmail.com
Publications:   NASA ADS

Soko Matsumura (McMaster PhD '06)

CTC Fellow, University of Maryland (2009-2012)
Current Position:   Lecturer in Physics and Dundee Fellow, University of Dundee, UK
Research:   Planet formation and dynamics, protoplanetary disks, extrasolar planets.
E-mail:   s.matsumura@dundee.ac.uk
Publications:   NASA ADS

Stefan Umbreit (Max Planck Institute for Astronomy PhD '06)

Current Position:   Data Scientist at 4C Insights
Research:   Star formation, brown dwarfs, dynamics of dense star clusters.
E-mail:   stefan@4cinsights.com
Publications:   NASA ADS

John Fregeau (UIUC BS '99; MIT PhD '04)

MIT Stockbarger Fellow (1999-2001)
NASA Chandra Fellow (2007-2010)
Current Position:   Research Staff at IDA Center for Computing Sciences, Washington, DC
Research:   Dense star cluster dynamics, N-body simulations, gravitational wave sources.
E-mail:   fregeau@alum.mit.edu
Publications:   NASA ADS

Natasha Ivanova (Oxford D.Phil. '03)

Current Position:   Associate Professor of Physics and Canada Research Chair in Astronomy and Astrophysics, University of Alberta, Canada
E-mail:   nata.ivanova@ualberta.ca
URL:   Natasha Ivanova
Publications:   NASA ADS

Joshua A. Faber (SUNY Stony Brook BS '97; MIT PhD '01)

MIT Compton Fellow (1997-1999)
NSF Astronomy and Astrophysics Postdoctoral Fellow (2004-2007)
Current Position:   Associate Professor of Mathematical Sciences, Rochester Institute of Technology
Email:   jafsma@rit.edu
Publications:   NASA ADS

Marc Freitag (Université de Genève D.Sc. '00)

Current Position:   Postdoctoral Fellow, University of Cambridge, UK.
Enseignant, Gymnase de Nyon, Switzerland
Email:   marc.freitag@gmail.com
Publications:   NASA ADS

Ed Thommes (Queen's University PhD '00)

Current Position:   Health Outcomes Manager at GlaxoSmithKline, Canada
E-mail:   ethommes@uoguelph.ca
Publications:   NASA ADS

Simon Portegies Zwart (Utrecht University PhD '96)

Spinoza Fellow (1996-1997)
Hubble Fellow (1998-2001)
Current Position:   Professor, Leiden Observatory, University of Leiden, The Netherlands
Email:   s.portegieszwart@gmail.com
Publications:   NASA ADS

 

FORMER GRADUATE STUDENTS:


Carl Rodriguez (NU PhD '16)

Current Position:   Pappalardo Postdoctoral Fellow (MIT)
PhD Thesis:   High Performance Computer Simulations of Stellar Clusters
E-mail:   CarlRodriguez2015@u.northwestern.edu
Publications:   NASA ADS

Meagan Morscher (NU PhD '14)

Current Position:   Performance Consultant at Allen Communication Learning Services, Salt Lake City
PhD Thesis:   The Dynamical Evolution of Stellar Black Holes in Dense Star Clusters
E-mail:   m.morscher@u.northwestern.edu
Publications:   NASA ADS

Bharath Pattabiraman (NU PhD '14)

Current Position:   Software Engineer at Google
PhD Thesis:   Parallelization Strategies for Large Particle Simulations in Astrophysics
E-mail:   bharath@u.northwestern.edu
URL:   users.eecs.northwestern.edu/~bpa342
Publications:   NASA ADS

Sanghamitra Goswami (NU PhD '13)

Current Position:   Principal Consultant at Clarity Solution, Chicago
PhD Thesis:   Formation and Evolution of Black Holes in Dense Star Clusters
Publications:   NASA ADS

Sourav Chatterjee (NU PhD '10)

  University of Florida Postdoctoral Associate
Current Position:   CIERA Fellow and Research Assistant Professor, Northwestern University
PhD Thesis:   Numerical Modeling of Dense Star Clusters
E-mail:   sourav.chatterjee@northwestern.edu
URL:   Sourav Chatterjee
Publications:   NASA ADS

Emmanouela Rantsiou (NU PhD '09)

Current Position:   Staff Physicist, Paul Scherrer Institute, Switzerland
PhD Thesis:   Relativistic SPH Calculations of Black Hole – Neutron Star Binary Mergers
Publications:   NASA ADS

Genya Takeda (NU PhD '08)

Current Position:   Executive Vice President, Sanoh Industrial, Japan
PhD Thesis:   Planetary Systems in Binaries
Publications:   NASA ADS

Atakan Gürkan (Middle East Technical University BS '96, MS '98; NU PhD '05)

Current Position:   Professor of Astrophysics, Middle East Technical University, Ankara, Turkey
PhD Thesis:   Massive Black Holes in Dense Star Clusters
Publications:   NASA ADS

John M. Fregeau(UIUC BS '99; MIT PhD '04)

MIT Stockbarger Fellow (1999-2001)
NASA Chandra Fellow (2007-2010)
Current Position:   Research Staff at IDA Center for Computing Sciences, Washington, DC
PhD Thesis:   Dynamics and Evolution of Dense Stellar Systems
Email:   fregeau@alum.mit.edu
Publications:   NASA ADS

Joshua A. Faber (SUNY Stony Brook BS '97; MIT PhD '01)

MIT Compton Fellow (1997-1999)
NSF Astronomy and Astrophysics Postdoctoral Fellow (2004-2007)
Current Position:   Associate Professor of Mathematical Sciences, Rochester Institute of Technology
PhD Thesis:   Gravity Wave Signals from Relativistic Calculations of Binary Neutron Star Coalescence
Email:   jafsma@rit.edu
Publications:   NASA ADS

Kriten J. (Kris) Joshi (Caltech BS '95; MIT PhD '00)

Current Position:   Senior Director for Strategy and Business Development, Oracle Corp
PhD Thesis:   Monte Carlo Simulations of Globular Cluster Dynamics
Publications:   NASA ADS

Background Photo Credit: Hubble Space Telescope

Teaching

Spring 2017:

Physics 345-0, Intro to General Relativity:
Review of special relativity and Newtonian gravity; Gravity as geometry of curved spacetime; Geodesics and conservation laws; Schwarzschild geometry; Post-Newtonian expansions and tests of general relativity; Gravitational collapse and black holes; Linearized gravity and gravitational waves; Cosmological models for the expanding Universe. Prerequisites: PHYSICS 330-1, 2 or consent of instructor.

Background Photo Credit: Chandra

Outreach


MOVIES:

Planet-Disk Interactions:

  • Hybrid simulation of planet formation [3.8MB .mov]

Red Giant - Neutron Star Collisions:

Gravitational Waves from Compact Binary Mergers:

Binary Neutron Star Mergers:

Black Hole - Neutron Star Mergers:

  • Nonspinning (Schwarzschild) Black Hole [272KB .avi]
  • Maximally Spinning (Kerr) Black Hole [2.8MB .avi]

Tidal Disruption of a Giant Planet:

Dynamical Instabilities in Planetary Systems:

Triple-Star Interactions and Scattering:

Globular Cluster Evolution:

VISUALIZATIONS

Background Photo Credit: Hubble Space Telescope

Contact

Email: rasio_at_northwestern.edu

Prof Frederic Rasio
Northwestern University
Dept of Physics & Astronomy
2145 Sheridan Rd
Evanston IL 60208-3112

Office: +1 847 491 7904
Assistant: +1 847 491 7650
Physics and Astronomy: +1 847 491 3685

Background Photo Credit: Hubble Space Telescope