| Parameter Name |
Typical Value |
Description |
| ap |
1.0 (usually sampled) |
BAO peak position along the line of sight relative to the fiducial cosmology |
| at |
1.0 (usually sampled) |
BAO peak position across the line of sight relative to the fiducial cosmology |
| aiso |
1.0 (usually sampled) |
Isotropic BAO peak position relative to the fiducial cosmology. aiso = ap / (1+epsilon)^2
(needed for aiso_epsilon parametrisation) |
| 1+epsilon |
1.0 (usually sampled) |
1+epsilon = aiso / at (needed for aiso_epsilon parametrisation) |
| bias_eta_X |
depends on X (usually sampled) |
Velocity bias for tracer X. One for each input tracer and all metal lines |
| beta_X |
depends on X (usually sampled
for LYA and fixed for metals) |
Redshift space distortion parameter (beta = growth_rate * bias_eta / bias_delta)
for tracer X. One for each input tracer and all metal lines. |
| alpha_x |
depends on X (usually fixed) |
Coefficient for the redshift dependence of the bias of tracer X. One for each input
tracer and all metal lines |
| croom_par0 |
0.53 (usually fixed) |
First coefficient for the Croom model of quasar bias redshift dependence. See eq. 24 in
the DR14 cross paper (Blomqvist et al 2019). |
| croom_par1 |
0.289 (usually fixed) |
Second coefficient for the Croom model of quasar bias redshift dependence. See eq. 24 in
the DR14 cross paper (Blomqvist et al 2019). |
| bias_hcd or
bias_hcd_X |
-0.05 (usually sampled) |
Bias of high column density absorbers. Can be specified as one parameter for all
components, or as multiple bias_hcd_X, where X is the name of the component e.g. lyaxlya |
| beta_hcd |
0.7 (usually sampled) |
Redshift space distortion parameter for high column density. |
| L0_hcd |
depends on HCD model
(depends on HCD model) |
Scale parameter for high column density absorbers model. Has different meanings for
models. Check the guide on HCD models |
| sigmaNL_par |
6.36984 (usually fixed) |
Smoothing parameter for the BAO peak along the line of sight.
Models large scale non-linear effects |
| sigmaNL_per |
3.24 (usually fixed) |
Smoothing parameter for the BAO peak across the line of sight.
Models large scale non-linear effects |
| dnl_arinyo_q1 |
0.8558 (usually fixed) |
q1 parameter for the Arinyo model for small scale non-linear effects. |
| dnl_arinyo_kv |
1.11454 (usually fixed) |
kv parameter for the Arinyo model for small scale non-linear effects. |
| dnl_arinyo_av |
0.5378 (usually fixed) |
av parameter for the Arinyo model for small scale non-linear effects. |
| dnl_arinyo_bv |
1.607 (usually fixed) |
bv parameter for the Arinyo model for small scale non-linear effects. |
| dnl_arinyo_kp |
19.47 (usually fixed) |
kp parameter for the Arinyo model for small scale non-linear effects. |
| par binsize beta_X |
4 (always fixed) |
binsize for the coordinates along the line of sight |
| per binsize beta_X |
4 (always fixed) |
binsize for the coordinates across the line of sight |
| sigma_velo_disp_gauss_X |
(usually sampled) |
gaussian smoothing scale for tracer X to model velocity dispersion (used for QSO) |
| sigma_velo_disp_lorentz_X |
(usually sampled) |
Lorentzian smoothing scale for tracer X to model velocity dispersion (used for QSO) |
| par_sigma_smooth |
(usually sampled) |
Gaussian smoothing scale for the full correlation function along the line of sight |
| per_sigma_smooth |
(usually sampled) |
Gaussian smoothing scale for the full correlation function across the line of sight |
| par_exp_smooth |
(usually sampled) |
Exponential smoothing scale for the full correlation function along the line of sight |
| per_exp_smooth |
(usually sampled) |
Exponential smoothing scale for the full correlation function along the line of sight |