Calendar

Apr
23
Mon
Pizza Lunch: Moire Prescott
Apr 23 @ 12:30 pm – 1:30 pm
Pizza Lunch: Moire Prescott @ AY 119

 Glowing Cosmic Gas at Low and High Redshift

Planetary Group meeting
Apr 23 @ 3:00 pm – 4:00 pm
Apr
26
Thu
Inclusive Astronomy
Apr 26 @ 12:30 pm – 1:30 pm
Apr
27
Fri
Galaxy Group Meeting
Apr 27 @ 12:30 pm – 1:00 pm
Apr
30
Mon
Pizza Lunch: Jon Holtzman
Apr 30 @ 12:30 pm – 1:30 pm
Pizza Lunch: Jon Holtzman @ AY 119

APOGEE and the Milky Way disk

PDS Atmospheres Node meeting
Apr 30 @ 3:00 pm – 4:00 pm
May
3
Thu
Inclusive Astronomy
May 3 @ 12:30 pm – 1:30 pm
May
4
Fri
Galaxy Group Meeting
May 4 @ 12:30 pm – 1:00 pm
May
7
Mon
Pizza Lunch: Sean Sellers and Alysha Shugart
May 7 @ 12:30 pm – 1:30 pm
Pizza Lunch: Sean Sellers and Alysha Shugart @ AY 119

ASTR 598

May
9
Wed
Colloquium Thesis Proposal: Caitlin Doughty
May 9 @ 2:15 pm – 3:15 pm
Colloquium Thesis Proposal: Caitlin Doughty @ Science Hall 107

Metal Absorption in the Circumgalactic Medium During the Epoch of Reionization

Caitlin Doughty, NMSU

The characteristics of metal absorption arising from the circumgalactic medium of galaxies have been demonstrated to be related to conditions in the galaxy which sourced them, as well as to the ambient ultraviolet background. I propose a three- pronged thesis in order to better understand and utilize these relationships. First, I will explore whether the spectral energy distributions of binary stars, incorporated into a custom version of GADGET-3, can explain the discrepancy between observed and simulated absorber statistics. Second, I will study the relationship between neu- tral oxygen absorbers and the neutral hydrogen fraction in simulated quasar sight- lines and relate the results to observations of neutral oxygen at z ≥ 4.0. Third, I will study the relationships between the emissive properties of galaxies, stemming from their nebular gas, and the metal absorbers which they source. Taken as a whole, this thesis will improve the ability of cosmological simulations to reproduce realistic metal absorption, probe the local progress and topology of reionization, and under- stand what emissive galaxy traits we expect at z > 5 based on observations of metal absorbers.