Week of Events
Sunday, April 12, 2026
No events on this day.
Monday, April 13, 2026
No events on this day.
Tuesday, April 14, 2026
No events on this day.
Wednesday, April 15, 2026
No events on this day.
Thursday, April 16, 2026
No events on this day.
Friday, April 17, 2026
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April 17, 2026 -CGCA Seminar – Janeth Valverde
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April 17, 2026 -Physics Colloquium – Nicholas Stone
CGCA Seminar – Janeth Valverde
Title and abstract to be determined
Janeth Valverde
Marquette University
The abstract for this talk will be added as soon as it is made available.
Physics Colloquium – Nicholas Stone
Gravitational Waves from Galactic Nuclei
Nicholas Stone, Assistant Professor
Department of Astronomy, University of Wisconsin-Madison
The discovery of GW150914 inaugurated the era of gravitational wave (GW) astronomy, opening a new window to study our Universe's compact objects and through which to test general relativity. Now, a decade later, the LIGO-Virgo-KAGRA (LVK) collaboration has seen hundreds of GW signals, overwhelmingly from mergers of binary stellar mass black holes. Despite the many successes of GW astronomy, a zeroth-order astrophysical question remains unanswered: what astrophysical environments produce the LVK binary black holes, and by what process are they assembled? Although many formation channels have been proposed, one uniquely testable solution is the "AGN channel:" a scenario in which individual black holes pair up and merge in the dissipative gaseous environment of an active galactic nucleus.
Saturday, April 18, 2026
No events on this day.