Weekly IPAC science talks are held on Wednesdays from 12-1pm in IPAC's Large Conference Room (Morrisroe 102), unless otherwise noted below. Pizza and soda are available for purchase.
Interested in presenting a talk or seminar, or have a question about the IPAC science talks? Please email firstname.lastname@example.org.
To receive IPAC seminar notification emails, sign up to be added to the mailing list.
Science Talk • 12:15 PM, July 28th, 2021 • Online only, for more information please join the IPAC seminars mailing list at https://lists.ipac.caltech.edu/mailman/listinfo/seminars
For more than a century now, astronomers have modeled the positions and velocities of stars to estimate accelerations (i.e., using kinematic analysis). Recent observations have revealed that our Galaxy has had a highly dynamic history. For time-dependent potentials (like that of our Galaxy), there are discrepancies between the true acceleration and that derived from kinematics. I will review two independent methods...