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高红移星系的观测研究
王 俊 贤
University of Science & Technology of China
1
2021/8/29
2
3
The Hubble Law
4
Redshift z = Δλ/λ0
Require at least 2 lines
5
quasar spectra
Zheng et al (1997), Francis et al (1991), Cristiani and Vio (1990)
Lya
Ha
CIV
6
z =
z =
Photometric redshift
7
8
9
How to find high redshift galaxies?
Look very hard
get some help
Get lucky
Watch the fireworks
Look next to something else
Look smart (LBG, Lyman-α Galaxies, photo-z, SMG)
etc
Credit: Mark Dickinson
10
王 俊 贤
University of Science & Technology of China
1
2021/8/29
2
3
The Hubble Law
4
Redshift z = Δλ/λ0
Require at least 2 lines
5
quasar spectra
Zheng et al (1997), Francis et al (1991), Cristiani and Vio (1990)
Lya
Ha
CIV
6
z =
z =
Photometric redshift
7
8
9
How to find high redshift galaxies?
Look very hard
get some help
Get lucky
Watch the fireworks
Look next to something else
Look smart (LBG, Lyman-α Galaxies, photo-z, SMG)
etc
Credit: Mark Dickinson
10
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