Study: Pair of Distinct Black Hole Mergers Reveals Clues on How They Form and Evolve The mergers, measured one month apart in 2024 by LIGO-Virgo-KAGRA collaboration, advance scientific understanding of the nature of black hole formation and fundamental physics; offer evidence of "seco...

A universal mystery 🪐 Recently published research co-authored by UNLV astrophysicist Carl-Johan Haster gives insight into black holes and fundamental physics.

#UniversityResearch #Science #Physics #Astrophysics

www.unlv.edu/news/release...

New paper from @ligo.org, @egovirgo.bsky.social and KAGRA announcing the observation of a pair of Binary Black Holes, with big implications for their formation history as well as big impact on our understanding of fundamental physics in our Universe.
Contributions from NCfA member Cael Haster.

GW231109_235456: A Sub-threshold Binary Neutron Star Merger in the LIGO-Virgo-KAGRA O4a Observing Run? We present a sub-threshold search for gravitational-wave inspirals from binary neutron stars using data from the first part of the fourth observing run of the LIGO-Virgo-KAGRA Collaboration. To enhanc...

arxiv.org/abs/2509.09741

Exciting new steps towards more multimessenger astrophysical observations!
Congratulations to NCfA members Carl-Johan Haster and Leo Tsukada!
@unlv.edu

Hubble constant constraint using 117 FRBs with a more accurate probability density function for ${\rm DM}_{\rm diff}$ Fast radio bursts (FRBs) are among the most mysterious astronomical transients. Due to their short durations and cosmological distances, their dispersion measure (DM) - redshift ($z$) relation is usef...

A new paper led by NCfA grad student Jiaming Zhuge providing a new constraint of the Hubble constant using only observations of well-localized Fast Radio bursts.

arxiv.org/abs/2508.05161

On the second day of the @apsphysics.bsky.social #APSSummit25, @ncfa.bsky.social postdoc Marios Kalomenopoulos ( @unlv.edu ) presents results on measuring global correlations in the observed population of binary black hole systems.

At this year's #APSSummit25 by @apsphysics.bsky.social in Anaheim, Leo Tsukada (@ncfa.bsky.social Fellow @unlv.edu ) presents a method for doing a targeted GW search using the gstlal pipeline.

Andrew Levan (Radboud University) discusses (through a remote talk) special kilonovae

Back from lunch on the second day of the NCfA symposium, Shri Kulkarni ( @caltech.edu ) tells the story of the Zwicky Transient Facility: A Discovery Engine

Finishing the morning, Ye Li (Purple Mountain Observatory) presents a sudden dramatic change and recovery of magneto-environment of a repeating fast radio burst

Next up is Izumi Kaku (Osaka Metropolitan University) presenting A New Radiometric Method for Detecting the Circularly Polarized Gravitational Wave Background

Next, Shio Sakon (Penn State University) presents LIGO-Virgo-KAGRA Searches for Sub-solar mass Binaries

After the coffee break, Marios Kalomenopoulos (postdoc @ncfa.bsky.social @unlv.edu ) talks about unveiling BBH formation pathways through parameter correlations

The last talk in the morning session is by Leo Tsukada ( @ncfa.bsky.social fellow @unlv.edu ) presenting a targeted gravitational-wave search for compact binaries using GstLAL.

Next up is Reed Essick ( CITA ) figuring out how to Infer the Neutron Star Equation of State

Starting our second symposium day is Michael Coughlin (University of Minnesota) discussing what is new in GW searches, and how is that important for MMA science.

Conference banquet with the proper NCfA touch!

Finishing up the first day of our symposium is Sreetama Goswami (postdoc @ncfa.bsky.social @unlv.edu ) talking about a Search for neutrinos from Compton Thick AGN with IceCube

Followed by Riya Shah (Drexel University) presenting an All-Sky Search for Astrophysical Neutrino Sources with IceCube Tracks and Cascades

Next up is Shiqi Yu ( @utah.edu ) presenting Evidence of Neutrino Emission from X-ray Bright Seyfert Galaxies

The last talk before the afternoon coffee break is by Nick Kamp ( @harvard.edu ) discussing Neutrino Astrophysics with KM3NeT.

Next up is Tianlu Yuan (from WIPAC at UWMadison) talking about deciphering the galactic and extragalactic high-energy neutrino flux.

The first talk in the Monday afternoon session of the NCfA MMA symposium is given by Kohta Murase ( @pennstateuniv.bsky.social) about multimessenger emission from the primary sources of high-energy cosmic neutrinos.

The last talk before the lunch break is by Eobard Ding (PhD student @ncfa.bsky.social @unlv.edu) talking about connecting the gamma-ray and neutrino horizons.

Next, Jose Carpio ( @ncfa.bsky.social fellow @unlv.edu ) presents high-energy neutrino emission parameters in bright Seyfert galaxies and Quasars.

After a short break, Maria Giovanna Dainotti (National Astronomical Observatory of Japan) tells us about cosmological measurements using a combination of EM observables

Next talk is by Hui Sun (National Astronomical Observatories, Chinese Academy of Sciences) presenting an overview of recent EM capabilities, with a focus on observations with the Einstein Probe

Next up is Jocelyn Read @jocelynread.bsky.social from @calstatefullerton.bsky.social discussing what next-generation gravitational wave observatories can tell us about MMA in the coming decades

Marcos is of course visiting us from @uofalabama.bsky.social 🙂

The first talk at the 2025 NCfA Multimessenger Symposium is by Marcos Santander about an overview of current neutrino astrophysics