Astrophysics

Abstract: The existence of multi black hole solutions in asymptotically flat spacetimes is one of the expectation from the final state conjecture. In this talk, I will present preliminary works in this direction via a semilinear toy model in...

With the advent of JWST, the need for detailed chemical and photochemical models of exoplanet atmospheres has increased. Traditionally, building reaction networks required manually tracking species and reactions, a process that is both time...

Each week, we hold a relatively informal seminar/discussion series with an emphasis on extra-galactic and large-scale structure astrophysics.

During Galread a leader/visitor presents a recent paper to the discussion group. The PDF of the paper is...

Speaker: Zack Andalman
Title: Thunderstorm - Relativistic Electron Transport in KNe Ejecta

Speaker: Matt Sampson
Title: Latent ODEs for Astrophysical Systems

Speaker: Christian Kragh Jespersen
Title: Inseparable Galaxies

More than a century ago, Albert Einstein presented his general theory of gravitation. One of the predictions of this theory is that not only particles and objects with mass, but also the quanta of light, photons, are tied to the curvature of space...

Observations of the large-angular-scale autocorrelation function and power spectrum of the cosmic microwave background (CMB) over the last 30 years have consistently provided hints that our standard LCDM cosmological model may be inaccurate. One...

The origin of supermassive black holes (SMBHs) is a key open question for contemporary astrophysics and cosmology. Here we discuss the predictions of a model of SMBH formation from Pop III.1 protostars, i.e., metal-free stars forming in locally...

Rapidly spinning millisecond pulsars represent some of the most impressive astrophysical machines. A unique class of these objects known as spider pulsars are found in tight binaries with low mass companions. The pulsar emission irradiates the...