Astronomy Colloquium


2022-2023 Colloquium Schedule

Astronomy Colloquia are held at 3:00 PM most Thursdays during the Autumn and Spring semesters. Colloquia will follow a hybrid format, meeting in the Chem & Biomolecular Eng & Chem (CBEC) Building - Room 130 for group watching of virtual colloquia and in-person speakers which will also be broadcast on Zoom.

To join the colloquium click here. For graduate students, click here to join Value Added. If you need the password please contact someone you know in the astronomy department or send an email to


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2022 - 2023 Colloquium Schedule


January 12 - No Colloquium - AAS Meeting

January 19 - John Forbes (Simons Foundation) - Towards a Theory of Galaxy Formation in the Era of Good Looking Simulations

January 24 - Carolyn Raithel (IAS)Multi-Messenger Probes of the Neutron Star Equation of State

January 31 - Meridith Joyce (CSFK Konkoly Observatory) - The Ages of Stars and Other Stories: Redefining the Standard for 1D Stellar Modeling Across the Mass Spectrum

February 9 - TBD

February 14 - Colloquium

February 21 - Colloquium

February 23 - No Colloquium - Faculty Meeting

March 2 - TBD

March 9 - No Colloquium - Faculty Meeting

March 16 - No Colloquium - Spring Break

March 23 - TBD

March 30 - TBD

April 6 - TBD

April 13 - TBD

April 20 - TBD


August 25 - No Colloquium - Faculty Symposium

September 1 - Paul Beck (University of Graz) - Asteroseismology of red-giant stars and binaries systems

September 8 - Mark Reynolds (The Ohio State University) - Super-Eddington Accretion: Insight from Stellar Mass Neutron Stars and Black Holes

September 15 - Steve Ertel (University of Arizona) - The LBT Interferometer - a general-purpose instrument for sensitive, high-angular resolution, mid-infrared observations

September 22 - Eileen Gonzales (Carl Sagan Institute, Cornell University) - Read Between the Spectral Lines: Characterizing Substellar Atmospheres

September 29 - JD Smith (University of Toledo) - After the Fall: The Dust and Gas in Post-Starburst Galaxies

October 6 - Yvette Cendes (CfA) - Using a Violent Demise to Study Extreme Environments 

October 13 - No Colloquium (Fall Break)

October 20 - No Colloquium

October 27 - Dan Wilkins (Stanford University) - Seeing to the Event Horizons of Supermassive Black Holes

November 3 - Thales Gutcke (Princeton University) - Pioneering the Realm of Ultra-High Resolution Galaxy Formation

November 10 - Anna Rosen (CfA) - A Massive Star is Born: How Stellar Feedback Limits Accretion onto Massive Stars

November 17 - No Colloquium 

November 24 - No Colloquium (Thanksgiving Break)

December 1 - Christina Eilers (Massachusetts Institute of Technology) - The Growth of Supermassive Black Holes in the Early Universe

December 8 - No Colloquium

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2021 - 2022 Colloquium Schedule


August 26 - No Colloqium

September 2 - Ami Choi (California Institute of Technology) In Person - Cosmology with DES

September 9 - No Colloquium

September 16 - Marina Kounkel (Vanderbilt University) Virtual - Young Stars

September 23 - Victor Aguirre Borsen-Koch (Aarhus University) - Building the Chronology of the Milky Way with Pulsating Stars

September 30 - Anna Ijjas (MPI for Gravitational Physics - Albert Einstein Institute) Virtual - New Frontiers in Fundamental Cosmology

October 7 - No Colloquium

October 14 - No Colloqium

October 21 - Celine Peroux (European Southern Observatory) Virtual - The Cosmic Baryon and Metal Cycles

October 28 - Christine Simpson (University of Chicago) - Simulating the Galaxy: How Computer Simulations Allow us to Test Theories of Galaxy Formation and Evolution

November 4 - Annalisa Pillepich Virtual (MPIA) - The Many Diverse Manifestations of Supermassive Black-Hole Feedback

November 11 - No Colloqium

November 18 - No Colloquium

November 25 - No Colloqium

December 2 - Ariadna Murguia Berthier (Northwestern University) - The Fate of the Merger Remnant in GW170817 and It's Imprint on the Jet Structure

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2020-2021 Colloquium Schedule

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Past Colloquia


Spring 2020 Schedule:

January 9 - No Colloquium - AAS

January 16 - Rupali Chandar (University of Toledo) - From Birth to Death: The Life Cycle of Star Clusters

January 23 - Gordon Richards (Drexel University) - A Modern View of Quasars in the LSST Era

January 30 - Evan Kirby (Caltech) - Galactic Arcaeology: Galaxy Formation and Nucleosynthesis

February 6 - Miki Nakajima (Rochester Institute for Technology) - Origin of the Earth and Moon

February 13 - No Colloqium

February 14 - Savita Mathur (Instituto de Asrofísica de Canarias (IAC) & Rafael Garcia (Service d'Astrophysique du CEA) - TBA

February 20 - Eliza Kempton (University of Maryland) - Revealing the Atmospheres of Extrasolar Super-Earths

February 27 - Richard Townsend - University of Wisconsin

March 5 - No Colloqium

March 12 - No Colloquium - Spring Break

CANCELED - March 19 - Sean Andrews (Harvard University CfA) - Observing Planet Formation

CANCELED - March 26 - Jenny Greene - Princeton University

CANCELED - April 2 - Randall Smith - Harvard University CfA

April 9 - No Colloqium

CANCELED - April 16 - Elena Gallo - University of Michigan

CANCELED - April 23 - Debra Fisher - Yale University


Autumn 2019 Schedule:

Aug 22 - No Colloquium - Departmental Symposium

Aug 29 - No Colloquium

Sept 5 - No Colloquium

Sept 12 - No Colloquium - Faculty Meeting

Sept 19 - Ayan Acharyya (Australian National University) - ISM Conditions at Cosmic Noon: New Nebular Diagnostics and Mock IFU Observations

Sept 26 - Yuan-Seng Ting (Institute for Advanced Study) - Into the Starlight: Learning the Milky Way

Oct 3 - Mathieu Vrard (Ohio State University) - Determination of the Evolutionary States of Red Giant Stars through the Use of Seismology: A Review of the Different Existing Techniques

Oct 10 - No Colloquium - Autumn Break

Oct 17 - Ke Zhang (University of Michigan) - Tracing the Chemical Origins of Exoplanetary Worlds

Oct 24 - No Colloquium - Faculty Meeting

Oct 31 - Karin Sandstrom (UC San Diego) - Interstellar Dust at Low Metallicity

Nov 7 - Chris Stark (Space Telescope Science Institute) - The Exoplanet Yield Landscape for Future Space Telescopes

Nov 14 - Sarah Hörst (Johns Hopkins University) - Exploring Planetary Atmospheres in the Lab

Nov 21 - Rachel Bezanson (University of Pittsburgh) - The Formation of Massive Galaxies: Deep, High-Redshift Spectroscopy from the LEGA-C Survey and Beyond

Nov 28 - No Colloquium - Thanksgiving Break

Dec 4 - Chuck Steidel (California Institute of Technology) - Imaging the "Baryon Cycle" of Forming Stars

Dec 5 - Xiaohui Fan (University of Arizona) - Extreme Quasars During the Cosmic Dawn


Spring Semester 2019

Astronomy Colloquia are held at 4 pm most Thursdays during the Autumn and Spring semesters. All talks for Spring 2019 are in 1005 Smith Lab, and Coffee and Refreshments are served at 3:30pm in 4054 McPherson Lab, unless otherwise noted.


Jan 17: No Colloquium

Jan 24: Eve Ostriker (Princeton) - Radiation feedback and the destruction of cluster-forming molecular clouds

Jan 31: Alan McConnachie (NRC Herzberg) - Deconstructing Stellar Halos in the Local Group

Feb 7: No Colloquium

Feb 14: No Colloquium

Feb 21: Erin Kara (University of Maryland) - X-ray Reverberation in Accreting Black Holes

Feb 28: Anne Medling (University of Toledo)

Mar 7: Kelly Holley-Bockelmann (Vanderbilt)

Mar 14: No Colloquium - Spring Break

Mar 21: Marla Geha (Yale)

Mar 28:Preethi Nair (Alabama) - The Impact of Secular Features on the Evolution of Disk Galaxies

Apr 4: Andrew Szentgyorgyi (Harvard-Smithsonian CfA)

Apr 11: No Colloquium

Apr 18: Camille Avestruz (University of Chicago) - Simulations for Cluster-Based Cosmology

May 16: Special Colloquium - Mark Krumholz (Australian National University) 


Autumn Semester 2018

Astronomy Colloquia are held at 4 pm most Thursdays during the Autumn and Spring semesters. All talks are in 1005 Smith Lab, and Coffee and Refreshments are served at 3:30pm in 4054 McPherson Lab, unless otherwise noted.


Aug 23: No Colloquium - Department Symposium

Aug 30: Andrew Benson (Carnegie) - The "N" in "N-Body"

Sep 6: No Colloquium 

Sep 13: Alberto Bolatto (Maryland) - The Central Engine and Outflows in the Nuclear Starburst of NGC 253 as Revealed by ALMA

Sep 20: Mariska Kriek (UC Berkeley) - Reconstructing the Formation Histories of Massive Galaxies

Sep 27: No Colloquium

Oct 4: Karen Leighly (Oklahoma) - What's in the Wind? Spectral Synthesis Modeling of Broad Absorption Line Quasars

Oct 11: No Colloquium - Autumn Break

Oct 18: No Colloquium

Oct 25: Ben Montet (Chicago) - Understanding the evolution of planetary systems and their host stars from the ground and from space

Nov 1: Keith Hawkins (UT Austin) - Galactic Archaeology in the Gaia Era

Nov 8: Tim Linden (Ohio State) - The Rise of the Leptons: Emission from Pulsars will Dominate the next Decade of TeV Gamma-Ray Astronomy

Nov 15: Courtney Dressing (UC Berkeley)

Nov 22: No Colloquium - Thanksgiving

Nov 29: Lynne Hillenbrand (Caltech) - The Gaia Revolution in Pre-Main Sequence Stars and Star Clusters