Upcoming & Recent Presentations

Invited Speaker, AMNH Astrophysics Seminar
Tue, Jan 28
American Museum of Natural History
Jan 28, 12:00 PM
American Museum of Natural History, Central Park West & 79th St, New York, NY 10024, USA
Invited Speaker, Carnegie Department of Terrestrial Magnetism
Fri, Dec 13
5241 Broad Branch Rd NW
Dec 13, 2019, 12:00 PM
5241 Broad Branch Rd NW, 5241 Broad Branch Rd NW, Washington, DC 20015, USA
Speaker, NASA Goddard Extrasolar Planets Seminar
Thu, Dec 12
NASA Goddard Space Flight Center
Dec 12, 2019, 12:00 PM
NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA
Cannibal Stars: Engulfed Planets -- what are the engulfment signatures produced by planetary engulfment events and what insights might they reveal?
Invited Speaker, Starts & Planets Seminar Series
Mon, Nov 25
Harvard-Smithsonian Center for Astrophys
Nov 25, 2019, 12:00 PM
Harvard-Smithsonian Center for Astrophys, 60 Garden St, Cambridge, MA 02138, USA
Invited Speaker, Envision Conference: Ethics in Science & Technology
Sat, Nov 23
Princeton University
Nov 23, 2019, 3:00 PM
Princeton University, Princeton, NJ 08544, USA
I will give a 30-minute talk entitled Ethical Concerns for a Spacefaring Civilization.
Speaker, University of California Santa Cruz Plunch Seminar
Mon, Nov 04
University of California Santa Cruz
Nov 04, 2019, 12:00 PM PST
University of California Santa Cruz, 1156 High St, Santa Cruz, CA 95064, USA
Why are engulfment signatures important to planet formation theory? I discuss the value of employing a forensic spectral analysis to cannibal stars in an effort to constrain planet formation models.
Speaker, Star & Planet Formation & Exoplanet Detection & Characterization Meeting
Tue, Oct 29
University of Michigan
Oct 29, 2019, 3:00 PM PDT
University of Michigan, 500 S State St, Ann Arbor, MI 48109, USA
I will share my latest results on the chemical signatures produced by planetary engulfment. Are such signatures statistically significant? Do they survive for appreciable timescales? Yes and yes, but only in a subset of planet-star systems. I'll tell you which ones!
Invited Astronomy Colloquium Speaker
Thu, Oct 24
University of Wisconsin-Madison
Oct 24, 2019, 3:30 PM
University of Wisconsin-Madison, Madison, WI 53706, USA
Open Cluster Variables: Evasive, Invaluable Probes In this talk I'll discuss the merit of open cluster searches and the remarkable periodic variables therein. I put special focus on my hunt for rapidly rotating stars.

updated 10/2020