Skip to Content

Sponsors

No results

Tags

No results

Types

No results

Search Results

Events

No results
Search events using: keywords, sponsors, locations or event type
When / Where
All occurrences of this event have passed.
This listing is displayed for historical purposes.

Presented By: Department of Physics

HEP-Astro Seminar | Generic Objects of Dark Energy (GEODEs): Implications for Black Hole Evolution and Cosmology

Kevin Croker (University of Hawaii)

Please contact Beth Demkowski, demkowsk@umich.edu for Zoom link.

Resolution of the averaging ambiguity in Friedmann cosmology has revealed that the interiors of ultrarelativistic objects are tightly coupled to cosmological dynamics. General relativity now predicts that measurable energy shifts, like the well-known photon redshift, occur in all material with equation of state magnitude greater than 0.01. Objects that mimic classical black holes, but contain dark energy interiors (GEODEs), can undergo a pronounced cosmological blueshift. In particular, each member of a GEODE population can gain energy proportional to the physical volume of the universe, while the population itself disperses in volume with the cosmological expansion.The resulting physical dark energy density is constant in time, mimicking a cosmological constant. Assuming that stellar collapse remnants realized by Nature are actually GEODEs, we discuss the implications for quasar masses at high redshift and the black hole mass function as measured by LIGO at low redshift.

Co-Sponsored By

Explore Similar Events

  •  Loading Similar Events...

Back to Main Content