Calendar

Apr
29
Fri
ASTR 500 – Seminar
Apr 29 @ 1:00 pm – 2:00 pm
Colloquium: Betsy Mills (Host: Moire Prescott)
Apr 29 @ 3:15 pm – 4:15 pm
Colloquium:  Betsy Mills (Host: Moire Prescott) @ BX102

Do star formation laws break in the center of the Galaxy?

Betsy Mills, University of Arizona

I will review our understanding of molecular gas conditions in the central 500 parsecs of the Milky Way, and summarize recent studies that find that the Galactic center deviates from universal star formation relations. It is suggested that the amount of star formation in the Galactic center is less than expected, given the quantity of dense gas in this region. However, in order to conclude that the Galactic center truly breaks these ‘laws’ of star formation, two possibilities must be ruled out: that our indicators in this region could underestimate the amount of star formation, and that prior observations could have overestimated the amount of dense gas. I will analyze new evidence for ongoing star formation in the Galactic center and present new measurements of the gas densities in the Galactic center that show it to be less dense than originally thought. However, I will ultimately argue that the average density of the gas is less relevant to explaining the dearth of star formation than the fraction of gas at each density.

 

May
2
Mon
ASTR 625 – Cosmology
May 2 @ 11:30 am – 12:20 pm
May
3
Tue
ASTR 620 – Planetary Science I
May 3 @ 8:55 am – 10:10 am
May
4
Wed
ASTR 625 – Cosmology
May 4 @ 11:30 am – 12:20 pm
May
5
Thu
ASTR 620 – Planetary Science I
May 5 @ 8:55 am – 10:10 am
May
6
Fri
ASTR 625 – Cosmology
May 6 @ 11:30 am – 12:20 pm
ASTR 500 – Seminar
May 6 @ 1:00 pm – 2:00 pm
May
12
Thu
Colloquium PhD Defense: Kenz Arraki
May 12 @ 3:00 pm – 4:00 pm
Colloquium PhD Defense: Kenz Arraki @ Dominici106

Evolution of Dwarf Galaxy Properties in Local Group Environments

Kenz Arraki, NMSU

May
31
Tue
Colloquium PhD Defense: Diane Feuillet
May 31 @ 3:00 pm – 4:00 pm
Colloquium PhD Defense: Diane Feuillet @ Dominici106

Ages and Abundance of Local Stellar Populations

Diane Feuillet, NMSU