Calendar

Dec
6
Fri
Inclusive Astronomy Meeting
Dec 6 @ 10:30 am – 11:30 am
Colloquium: Elise Boera (Host: Kristian Finlator)
Dec 6 @ 3:15 pm – 4:15 pm
Colloquium: Elise Boera (Host: Kristian Finlator) @ BX102

Revealing reionization with the thermal history of the intergalactic medium

Elisa Boera, SISSA Trieste

During hydrogen reionization the UV radiation from the first luminous sources injected vast amount of energy into the intergalactic medium, photo-heating the gas to tens of thousands of degree Kelvin. This increase in temperature has left measurable `imprints’ in the thermal history of the cosmic gas: a peak in the temperature evolution at the mean density and a smoothing out of the gas in the physical space by the increased gas pressure following reionization (i.e. Jeans smoothing effect). The structures of the HI Lyman-alpha forest at high redshift are sensitive to both these effects and therefore represent a powerful tool to understand when and how reionization happened. I will present the most recent constraints on the thermal history of the intergalactic medium obtained using the Lyman-alpha forest flux power spectrum at z>5. I will show how these results can be used to obtain information on the timing and the sources of the reionization process and I will discuss their consistency with different possible reionization scenarios.
Observatory Open House
Dec 6 @ 7:00 pm – 9:00 pm
Observatory Open House @ BX102, Tombaugh Observatory

Host: Jon Holtzman. Assisted by Caitlin Doughty, Minje Beom, Emma Dahl

Pre-observing talk at 7:00 in Biology Annex Room 102. Observing at Tombaugh Campus Observatory starts at 7:30. Visitors can attend either or both!

Dec
9
Mon
Pizza lunch: ASTR 598 (Minje)
Dec 9 @ 12:30 pm – 1:15 pm
Pizza lunch: ASTR 598 (Minje) @ AY 119

ASTR 598

Minje Boem

Dec
13
Fri
Inclusive Astronomy Meeting
Dec 13 @ 10:30 am – 11:30 am
No Colloquium: Final Exam Week
Dec 13 @ 3:15 pm – 4:15 pm
No Colloquium: Final Exam Week @ BX102

Colloquium Title

Colloquium Speaker Name, Affiliation

Abstract text

Jan
24
Fri
Colloquium: RESERVED (Host: TBD)
Jan 24 @ 3:15 pm – 4:15 pm
Colloquium: RESERVED (Host: TBD) @ BX102

Colloquium Title

Colloquium Speaker Name, Affiliation

Abstract text

Jan
31
Fri
Colloquium: RESERVED (Host: TBD)
Jan 31 @ 3:15 pm – 4:15 pm
Colloquium: RESERVED (Host: TBD) @ BX102

Colloquium Title

Colloquium Speaker Name, Affiliation

Abstract text

Observatory Open House
Jan 31 @ 7:00 pm – 8:30 pm
Observatory Open House @ BX102, Tombaugh Observatory

Host: Chris Churchill. Assisted by Jeremy Emmett, Farhan Hasan, Manny Canas

Feb
7
Fri
Colloquium: RESERVED (Host: TBD)
Feb 7 @ 3:15 pm – 4:15 pm
Colloquium: RESERVED (Host: TBD) @ BX102

Colloquium Title

Colloquium Speaker Name, Affiliation

Abstract text