Colloquium
Special Colloquium
Gravitational Waves from f-modes as a Tool to Probe the Neutron Star Interior
Dr. Debarati Chatterjee, Inter-University Centre for Astronomy and Astrophysics
March 27, 2024
11:00am in LA4-120
Abstract
Unstable oscillation modes in Neutron Stars can be important sources of Gravitational waves (GW). In particular, the fundamental f-modes could be detectable with the improved sensitivity band of the current generation of GW detectors or with the future generation detectors. The mode characteristics are sensitive to the neutron star internal composition. In a series of recently published works, we performed systematic investigations of gravitational wave emission from neutron stars via f-modes.
We identified important nuclear parameters that are strongly correlated with the mode characteristics. We then constructed improved universal relations and demonstrated how they can be applied in neutron star asteroseismology to constrain the equation of state from f-mode observations. We recently investigated how the nature of hadron quark phase transition and the existence of twin stars or strange stars can be probed with f-mode detections. We also showed how tidal heating from high bulk viscous dissipation of the dynamical f−mode excitations during binary inspirals can indicate the presence of strangeness in the interior of neutron stars.
The Colloquium is a unique opportunity for students to learn about new developments in physics and what physicists do after they graduate. Hosted by the Physics and Astronomy Department at California State University, Long Beach, the weekly meetings invite guests from universities, research laboratories, and industry to present and discuss current topics in physics. All students are encouraged to attend for a well-rounded experience and training in physics.
Colloquium Coordinator
For information and suggestions about the colloquium please contact the colloquium coordinator:
Dr. Alex Klotz
Alex.Klotz@csulb.edu
Schedule
The following is the schedule for Spring 2024.
Date | Title | Speaker and Affiliation |
---|---|---|
March 27, 2024 | Gravitational Waves from f-modes as a Tool to Probe the Neutron Star Interior | Dr. Debarati Chatterjee, Inter-University Centre for Astronomy and Astrophysics |
April 8, 2024 | (topic: solid state physics) | Ramamoorthy Ramesh, Rice University |
April 15, 2024 | (topic: astronomy) | Smadar Naoz, UCLA |
April 22, 2024 | (topic: biophysics) | Rae Robertson-Anderson, University of San Diego |
April 29, 2024 | (topic: particle physics) | Juan Pedro Ochoa-Ricoux, UC Irvine |
May 6, 2024 | End of Semester Presentations | Students, CSU Long Beach |
Previous Colloquia
Date | Title | Speaker and Affiliation |
---|---|---|
March 25, 2024 | Exploring Topological Phase Transitions and Dynamic Strain Engineering in Quantum Materials | Dr. Luis A. Jauregui, UC Irvine |
March 18, 2024 | DNA Liquids | Dr. Omar Saleh, UC Santa Barbara |
March 11, 2024 | The Gravity Tunnel in a Non-Uniform Earth | Dr. Alex Klotz, CSU Long Beach |
February 26, 2024 | A City on Mars: Can We Settle Space, Should We Settle Space, and Have We Really Thought This Through? | Zach Weinersmith, illustrator and writer for Saturday Morning Breakfast Cereal |
February 19, 2024 | Driving Quantum Matter to Extremes | Dr. Sarah Grefe, CSU Long Beach |
February 12, 2024 | Solar System Archaelogy: Multi-disciplinary Approaches to Understanding Planetary System Formation and Environmental Science | Dr. Gerardo Dominguez, CSU San Marcos |
February 5, 2024 | Assembly, Disassembly, and Mechanics of Entropic Colloidosomes | Dr. Zvonimir Dogic, UC Santa Barbara |
January 29, 2024 | What Quantum Materials Can Reveal When Interrogated with Photoemission and Electronic Transport Probes | Dr. Claudia Ojeda-Aristizaba, CSU Long Beach |
The Colloquium Archive has the Colloquia from previous semesters.
Sponsors
We acknowledge with gratitude donations and support from the following present sponsors:
- H.E. and H.B. Miller and Family Endowment
- Benjamin Carter
- American Physical Society
- Anonymous
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!