Episode 44 - asteroid impacts, chemical evolution and quasi-stars

In this week's episode, Michelle and NEWLY MINTED PhD, Dr Nicole, discuss papers including predictions for 10-metre plus asteroid impact rates on Earth and other planets, the abundance of life-critical Phosphorus in Galactic stars, age dating giants with the carbon-to-Nitrogen ratio and whether quasi-stars can explain the properties of little red dots! Tune in below, or on Spotify and Apple.

Check out this weeks papers below

Stellar ages from [C/N] in giant stars: applicability and limitations - Giada Casali et al

The Galactic Phosphorus Survey. I. Chemical Evolution across the Galactic Disk from ∼750 FGK Stars -Dionysios Gakis

Asteroids Impacting the Solar System Planets and the Moon. I. Collision Rates from N-body Simulations -Qifeng Cheng, Daniel Scolnic

A Spectral Framework for Testing the Quasi-Star Hypothesis in Little Red Dots I: Weighing LRDs by Their Super-Eddington Luminosity Ratios---No Signs of Overmassive Black Holes - Olivia Curtis et al.