The Seminar will begin at 2pm EST Online Seminar featuring Benoit Cote (Konkoly Observatory)

The Milky Way is surrounded by dozens of ultra-faint dwarf galaxies. These systems are the remnants of the earliest galaxies, and spectroscopy of their stars thereby reveals the elements produced by chemical evolution in a primitive, self-contained environment. Previous spectroscopic studies, however, had largely been limited to stars within the core of these galaxies (~2 half-light radii) due to the sparseness of their distant stars.

Abstract:

The fusion reaction of carbon and helium to oxygen is the key to understanding the evolution of stars and the relative abundances of both elements. The reaction rate of ¹²C(a,g)¹⁶O has to be known with an uncertainty of lower than 10% at a center-of-mass energy of 300 keV during Helium burning conditions. So far, experiments have studied the reaction down to about 1 MeV.

The Seminar will begin at 2pm EST Online Seminar featuring Donna Dean (American Chemical Society).

Abstract:

In the second webinar, mentoring approaches will be addressed for both mentors and mentees.  Factors that may impact the mentoring relationship and key topics and questions for mentoring discussions will be covered.

The content of each webinar should help participants reflect on past experiences and understand how they can build and sustain more effective mentoring relationships in the future. 

The Seminar will begin at 2pm EST Online Seminar featuring Donna Dean (American Chemical Society).

Abstract:

The first webinar will focus on tools, techniques, and strategies to seek out appropriate mentors for strong mentoring relationships. . The do's and don'ts involved for mentees and mentors will be covered.  

The content of each webinar should help participants reflect on past experiences and understand how they can build and sustain more effective mentoring relationships in the future. 

Rana Ezzeddine (University of Florida)

Abstract:

Abstract: Over the next decade, neutrino astronomy will probe the rich astrophysics of neutrino production in the sky, including neutrinos from the Sun, core-collapse supernova (e.g., SN 1987A), and relativistic jets (e.g., blazar TXS 0506+056). On the observational side of this new era, the Super-Kamiokande with Gadolinium, Jiangmen Underground Neutrino Observatory, XENON, and future liquid scintillator neutrino experiments usher in a new generation of multi-purpose neutrino detectors designed to open new avenues for potentially observing currently undetected neutrinos.

Presented by Ermal Rrapaj from the University of Minnesota

Abstract: I study the flavor evolution of a dense neutrino gas by considering vacuum contributions, mat-ter effects and neutrino self-interactions. Assuming a system of two flavors in a uniform matter background, the time evolution of the many-body system in discretized momentum space is com-puted. The multi-angle neutrino-neutrino interactions are treated exactly and compared to both the single-angle approximation and mean field calculations.  I study various configurations of up to twenty neutrinos.

Max Planck Institute for Astronomy, Heidelberg

Title TBA

Alexander Ji. Carnegie Science Observatories

The lanthanide fraction distribution in r-process metal-poor stars

Abstract:

Dan Siegel from Columbia University gives a talk.

Title: R-process nucleosynthesis in neutron star mergers and collapsars

Gina Duggan from Caltech gives an online seminar "Galactic Chemical Evolution Model Provides Quantitative Constraints on the r-process in Dwarf Galaxies"

Wei Jia Ong

Lawrence Livermore National Laboratory

Martyna Chruslinska

Nicolaus Copernicus Astronomical Center, Warsaw, Poland

Kenta Hotokezaka

Department of Astrophysics, Princeton University, USA

Falk Herwig, University of Victoria

Erika Holmbeck from Notre Dame University gives an online seminar “Actinide Production in Neutron Star Mergers: Observation and Theory”.