Astrophysics Calendar

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...

I will summarize what is known about UHECRs.  The observations are in fact highly constraining.  The rigidity distribution (R==E/Ze) of UHECRs is observed to be very narrow which rules out the most popular source scenarios.  This feature follows...

The so-called galaxy--halo connection is a vast topic concerning how galaxies populate their host dark matter halos.  I will present some works we have made under this grand theme, including (1) a unique method to estimate the host halo mass (and...

The Dragonfly project is developing a new class of telescopes optimized for low surface brightness astronomy. Originally designed to test the ΛCDM prediction that galaxies are embedded in extended tidal debris fields, Dragonfly combines the light...

The Bahcall Lunch follow the astrophysics colloquium lecture. Registration is required by noon the previous Thursday so a meal can be provided.

We are entering an exciting decade for survey science, where space-based surveys such as Euclid and ground-based surveys such as LSST and LS4 will provide overlapping imaging datasets across the optical and IR. By jointly analyzing multi-resolution...