Research Opportunties: Prof. Ryan Foley
Mapping the Milky Way: Gas and Dust
- neutral atomic hydrogen (H I): 21-cm hyperfine emission
- molecular hydrogen (really: CO molecules)
- ionized hydrogen (really: H-alpha recombinations; northern sky from WHAM, southern sky from SHASSA, all-sky)
- all hydrogen (really: high-energy gamma-rays)
- warm dust (as seen in the far infrared)
Mapping the Milky Way: Stars
- Global optical view: Tycho-2 map of brightest 2.5M(!) stars in B and V
- Truly global view: near infrared
- Stellar disk (Population I): thin, thick
- Spheroid (Population II): stellar halo, bulge
- cartoon of Milky Way structure
A Census of Local Stars
- the 151 (apparently) brightest stars
- RECONS data on the 100 nearest stars
- biases in star surveys
- the present-day luminosity function
