# COMAP x Lya tomography : (Update May 5 2022) :

We use COMAP Early Science CO model to paint CO emission on galaxy halo :

(Chung+21)


___

The mock maps are like :
<img src="https://i.imgur.com/AYjOw3e.png" width="2000" height="300" />

___

### Cross correlation results:


Below we consider different survey configurations

___

### Classes of Lya tomographies :

1. MSE:

$V_{MSE} \sim 1 Gpc^3$, $d_{\perp} \sim 1 cMpc/h$

2. PFS :

$V_{PFS} = 4 \times V_{LATIS} \sim V_{TNG}$, $d_{\perp} = 4 \ cMpc/h$

2. LATIS/CLAMATO/ELT like :

$V_{LATIS} \sim 1/4 V_{TNG}$

3. eBOSS-WEAVE-QSO:

$V_{eBOSS} \sim 1 Gpc^3$, $d_{perp} \sim 15 cMpc/h$

There are other possibilites :

1. Megamapper (7 deg^2)
2. SpecTel