y_prof.cpp File Reference

Example for using the group_particles code, computing the electron pressure (Compton-y) profiles of halos in an Illustris TNG simulation. More...

Classes
class	y_prof::YProfile
	stores a single electron pressure profile More...
class	y_prof::grp_store_P
	stores P200c for each group More...
struct	y_prof_callback
	implementation of the Callback base for our application More...

Namespaces
namespace	y_prof
	assembles some types to use for the pressure profile calculation.

Typedefs
using	y_prof::GrpF = GrpFields< IllustrisFields::GroupPos, IllustrisFields::Group_M_Crit200, IllustrisFields::Group_R_Crit200 >
	for the groups, we want to read their position and 200c masses and radii.
using	y_prof::PrtF = PrtFields< IllustrisFields::Coordinates, IllustrisFields::Masses, IllustrisFields::InternalEnergy, IllustrisFields::ElectronAbundance >
	for the particles, we want to read their position and the quanitities required to compute the electron pressure.
using	y_prof::AF = AllFields< GrpF, PrtF >
	bundle the group and particle fields
using	y_prof::grp_M_t = double
	type to which M200c will be converted
using	y_prof::grp_R_t = double
	type to which R200c will be converted
using	y_prof::grp_P_t = double
	type to which P200c will be converted
using	y_prof::grp_Y_t = YProfile
	type the pressure profiles will be stored in
using	y_prof::chunk = CallbackUtils::chunk::Multi< AF >
	group and particle files are in multiple chunks
using	y_prof::name = CallbackUtils::name::Illustris< AF, PartType >
	internal file layout is according to Illustris naming conventions
using	y_prof::meta = CallbackUtils::meta::Illustris< AF, PartType >
	meta-data required by code are according to Illustris conventions
using	y_prof::grp_select_M = CallbackUtils::select::LowCutoff< AF, IllustrisFields::Group_M_Crit200 >
	apply a minimum-mass selection on groups
using	y_prof::grp_select_R = CallbackUtils::select::LowCutoff< AF, IllustrisFields::Group_R_Crit200 >
	apply a minimum-radius selection on groups (exclude those with negative radius)
using	y_prof::grp_radius = CallbackUtils::radius::Simple< AF, IllustrisFields::Group_R_Crit200 >
	compute group radius as a multiple of R200c
using	y_prof::grp_store_M = CallbackUtils::grp_action::StoreGrpProperty< AF, IllustrisFields::Group_M_Crit200, grp_M_t >
	store M200c in a vector
using	y_prof::grp_store_R = CallbackUtils::grp_action::StoreGrpProperty< AF, IllustrisFields::Group_R_Crit200, grp_R_t >
	store R200c in a vector
using	y_prof::prt_compute_Y = CallbackUtils::prt_action::StorePrtHomogeneous< AF, grp_Y_t >
	store a y_prof::YProfile instance for each group

Variables
constexpr const uint8_t	y_prof::PartType = 0
	gas particles

Detailed Description

Example for using the group_particles code, computing the electron pressure (Compton-y) profiles of halos in an Illustris TNG simulation.