[Physics-grads-open] Resume Internal Student Seminar Series (PASS)

[Pooyan Goodarzi]

Hi Physics and Astronomy students,

In this week's PASS seminar, Ming-Feng will talk about an interesting
intersection of Black Holes and Statistics. Please join us on April 26th (
*Tomorrow*) at *2 PM* in the* Conference Room* (PHYS 3051).

*Ming-Feng Ho, PhD Candidate*
Friday, 2:00 pm, Conference Room (PHYS 3051)
*How Do Black Holes Mix in LIGO's GWTC3 Catalog?*

Abstract: LIGO's population analysis reveals a Gaussian bump substructure
at ~35 M⊙ among their ~ 90 binary black hole events, while the rest of the
black holes are mostly distributed in a power-law distribution from ~
5 M⊙ to ~ 80 M⊙. An interesting question to ask is whether this Gaussian
bump population of black holes is mixed with the power-law distribution, or
if they remain separate due to distinct formation channels. We designed a
Bayesian population model to measure the co-location and separation of the
power-law and Gaussian populations in LIGO's GWTC3 catalog using a mixture
model approach. We found that the posterior suggests that the Gaussian bump
black holes prefer to merge within their cohort, indicating a preference
for the populations to be separate. Mechanisms for producing the Gaussian
bump might also need to consider the separation of this population.


Best,
Pooyan
Physics and Astronomy Student Seminar (PASS)


On Fri, Feb 23, 2024 at 1:52 PM Ming-Feng Ho <mingfeng.ho at email.ucr.edu>
wrote:

> Hello Physics and Astronomy students,
>
> A group of us are in the process of organizing a weekly seminar series
> (known as PASS in the past) and would love to invite all UCR Physics and
> Astronomy graduate students and postdocs to join us. It’s a fantastic
> opportunity for you to share your research, learn from your peers, and
> practice your presentation skills in a stress-free environment. Everyone is
> welcome, both to attend and to sign up as speakers.
>
> We're in the process of scheduling these seminars at a time that works
> best for most. We'd greatly appreciate your help in determining this by *filling
> out the when2meet <https://www.when2meet.com/?23833033-4nNwu>*.
> *We're looking to kick things off next week, so keep that in mind when
> you're filling it out.*
>
> *If you’re interested in sharing your work as a speaker, please feel free
> to add your name to the spreadsheet [Google Sheet
> <https://docs.google.com/spreadsheets/d/15jECocCmSQIZSNxcJ7fcWOEQvixorkXlkUKTVN3AAVk/edit?usp=sharing>].*
> We’re looking forward to creating a dynamic and engaging series with your
> involvement!
>
> Best,
> Ming-Feng
> Physics and Astronomy Student Seminar (PASS)
>
> ---
> Ming-Feng Ho
> PhD Candidate
> Physics and Astronomy
> University of California, Riverside
> jibancat.github.io
>
>
>
> _______________________________________________
> Physics-grads-open mailing list
> Physics-grads-open at lists.ucr.edu
> https://lists.ucr.edu/mailman/listinfo/physics-grads-open
>
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