Monday, October 27, 2014
(Refreshments served at 10:45am in HSCI-224)
Fig: Figure: Periods of the fundamental l=2 p and g-modes and their overtones in a polytropic model of neutron stars. ν is the index of the polytrope.
Neutron stars are expected to support different kinds of fluid oscillation modes depending on the state of matter inside. Such oscillations have been connected to restoring forces (from the spectrum) and relaxation mechanisms (from the amplitude) that span different scales in the neutron star, from global modes to local torsional modes confined to the crust. In each case, the aim is to relate the amplitude and spectrum of these modes to the structure and composition of the neutron star. We present results from a series of studies of the r-mode, an axial mode that is intimately connected to gravitational waves, and show how it probes the equation of state. We examine the possibility of having deconfined quark matter inside neutron stars from the perspective of the r-mode. Finally, we will discuss some promising directions for research in this area, focusing on the possibility of using p-modes and g-modes to further discriminate between nucleonic and quark phases.
See the colloquium schedule and its archive of previous talks
Colloquia are scheduled to start Mondays at 11:15am sharp in Peterson Hall 2, Room 110 (PH2-110, map). Refreshments are served from 10:45am to 11:05am in Room HSCI-224 (next to the department office) and everyone is invited to mingle with faculty and students!
We acknowledge with gratitude donations and support from the following present sponsors:
We also acknowledge with gratitude our past donors: The Forty-Niner Shops, Inc., The Northrop Grumman Foundation, Sandra Dana, Anonymous.
If you wish to support the Colloquium, please contact the colloquium coordinator or the department chair. Thank you!
|Date||Title||Speaker and Affiliation|
|June 2||Development of Micro-Devices for Intra-Cellular Recordings in Awake Active Brains||M. Barbic, HHMI|
|September 8||Physics Deparment Meet & Mix||Faculty and
|September 15||Density Functional Theory: A great physics success story||Kieron Burke, UC Irvine|
|September 22||BME/Medical Physics; Assisted management of cardiopulmonary diseases||Christopher Druzgalski, CSULB|
|September 29||Radiationless Decay Studied by Time- Dependent Density Functional Theory||Enrico Tapavicza, CSULB|
|October 6||Electronic correlations in multi-orbital systems and iron based superconductors||Elena Bascones: ICMM, CSIC|
|October 13||Searches for Particle Dark Matter||Tim Tait, UCI|
|October 20||Theoretical Approaches towards HIV Vaccine Designs and Prevention Efforts||Ha Youn Lee, USC|
|October 27||Simulation and spectroscopy of many-body systems with cold atoms and molecules||Wes Campbell, UCLA|
|November 3||Probing the Interior of Neutron Stars through Non-radial Oscillations||Prashanth Jaikumar, CSULB|