Permalink
Branch: master
Find file Copy path
Fetching contributors…
Cannot retrieve contributors at this time
1106 lines (1065 sloc) 32 KB
====================
Available Datasets
====================
Please refer to the Current Status and Policies page before proceeding.
Particle Data (Gadget)
-------------
.. Warning::
Access to the particle data is by invite-only.
See Data Access Examples to see how to load each of these blocks. One such way is:
.. code:: python
import haloutils as htils
hpath = htils.get_paper_paths_lx(14)[0]
zoomid = htils.load_zoomid(hpath)
blockname = "POS " # NOTE THE EXTRA SPACE!
pos = htils.load_partblock(hpath,zoomid,blockname,partids=[listofids]) # units Mpc/h
.. Alert::
Make sure you include the right number of spaces (4) otherwise you will get an error when trying to read the blocks.
Other blocks you have access to are listed below:
.. raw:: html
<center>
+---------+-------+--------+---------+
| Block | Descr | Units | Notes |
| Name | iptio | | |
| | n | | |
+=========+=======+========+=========+
| ``ID`` | ID | - | -- |
| | numbe | | |
| | r | | |
| | (N) | | |
+---------+-------+--------+---------+
| ``POS`` | posit | comovi | They |
| | ion | ng | are all |
| | (Nx3) | Mpc/h | around |
| | | | ~50 |
| | | | Mpc/h |
| | | | as they |
| | | | are in |
| | | | the |
| | | | center |
| | | | of the |
| | | | 100 |
| | | | Mpc/h |
| | | | box for |
| | | | the |
| | | | resimul |
| | | | ations. |
+---------+-------+--------+---------+
| ``VEL`` | veloc | spatia | Spatial |
| | ity | l | velocit |
| | (Nx3) | km\\(: | y. |
| | | raw-la | The |
| | | tex:`\ | peculia |
| | | sqrt`( | r |
| | | a)\\)/ | velocit |
| | | s | y |
| | | | is |
| | | | obtaine |
| | | | d |
| | | | by |
| | | | multipl |
| | | | ying |
| | | | this |
| | | | value |
| | | | by |
| | | | \\(:raw |
| | | | -latex: |
| | | | `\sqrt` |
| | | | (a)\\). |
+---------+-------+--------+---------+
| ``MASS` | parti | Msol/h | Use |
| ` | cle | | ``heade |
| | mass | | r.massa |
| | (N) | | rr[1]*1 |
| | | | e10`` |
| | | | as it |
| | | | is |
| | | | faster |
| | | | than |
| | | | reading |
| | | | in the |
| | | | entire |
| | | | block. |
+---------+-------+--------+---------+
| ``POT`` | poten | --- | ---- |
| | tial | | |
| | energ | | |
| | y | | |
+---------+-------+--------+---------+
.. raw:: html
</center>
{{site.data.alerts.warning}} Remember to use the scale factor for the
snapshot you are working on to convert the comoving quantities to
physical. For z = 0, it doesn't matter.{{site.data.alerts.end}}
Halo Catalogues (Rockstar)
-----------
.. Attention::
Access to the halo catalogues is currently public (accessible via MIT server).
Rockstar outputs a large number of halo properties.
.. raw:: html
<center>
+--------+------+------+------+
| variab | unit | defi | note |
| le | s | niti | s |
| | | on | |
+========+======+======+======+
| ``id`` | | the | |
| | | ID | |
| | | numb | |
| | | er | |
| | | of | |
| | | the | |
| | | halo | |
+--------+------+------+------+
| ``posX | Mpc/ | como | |
| `` | h | ving | |
| | | x-po | |
| | | siti | |
| | | on | |
+--------+------+------+------+
| ``posY | Mpc/ | como | |
| `` | h | ving | |
| | | y-po | |
| | | siti | |
| | | on | |
+--------+------+------+------+
| ``posZ | Mpc/ | como | |
| `` | h | ving | |
| | | z-po | |
| | | siti | |
| | | on | |
+--------+------+------+------+
| ``pecV | km/s | Pecu | |
| X`` | | liar | |
| | | x-di | |
| | | r | |
| | | velo | |
| | | city | |
+--------+------+------+------+
| ``pecV | km/s | Pecu | |
| Y`` | | liar | |
| | | y-di | |
| | | r | |
| | | velo | |
| | | city | |
+--------+------+------+------+
| ``pecV | km/s | Pecu | |
| Z`` | | liar | |
| | | z-di | |
| | | r | |
| | | velo | |
| | | city | |
+--------+------+------+------+
| ``core | km/s | x-di | |
| velX`` | | r | |
| | | core | |
| | | velo | |
| | | city | |
+--------+------+------+------+
| ``core | km/s | y-di | |
| velY`` | | r | |
| | | core | |
| | | velo | |
| | | city | |
+--------+------+------+------+
| ``core | km/s | z-di | |
| velZ`` | | r | |
| | | core | |
| | | velo | |
| | | city | |
+--------+------+------+------+
| ``bulk | como | x-di | |
| velX`` | ving | r | |
| | km/s | bulk | |
| | | velo | |
| | | city | |
+--------+------+------+------+
| ``bulk | como | y-di | |
| velY`` | ving | r | |
| | km/s | bulk | |
| | | velo | |
| | | city | |
+--------+------+------+------+
| ``bulk | como | z-di | |
| velZ`` | ving | r | |
| | km/s | bulk | |
| | | velo | |
| | | city | |
+--------+------+------+------+
| ``mvir | Msol | viri | this |
| `` | /h | al | shou |
| | | mass | ld |
| | | set | only |
| | | by | be |
| | | `Bry | used |
| | | an | for |
| | | & | the |
| | | Norm | mass |
| | | an | ive |
| | | (199 | host |
| | | 8) < | halo |
| | | http | s |
| | | ://c | - it |
| | | dsad | is |
| | | s.u- | best |
| | | stra | to |
| | | sbg. | just |
| | | fr/a | use |
| | | bs/1 | ``mg |
| | | 998A | rav` |
| | | pJ.. | ` |
| | | .495 | |
| | | ...8 | |
| | | 0B>` | |
| | | __ | |
| | | pres | |
| | | crip | |
| | | tion | |
+--------+------+------+------+
| ``mgra | Msol | viri | when |
| v`` | /h | al | usin |
| | | mass | g |
| | | set | the |
| | | by | cata |
| | | `Bry | logu |
| | | an | es, |
| | | & | only |
| | | Norm | use |
| | | an | this |
| | | (199 | quan |
| | | 8) < | tity |
| | | http | as |
| | | ://c | it |
| | | dsad | is |
| | | s.u- | the |
| | | stra | grav |
| | | sbg. | itat |
| | | fr/a | iona |
| | | bs/1 | lly |
| | | 998A | boun |
| | | pJ.. | d |
| | | .495 | mass |
| | | ...8 | of |
| | | 0B>` | the |
| | | __ | halo |
| | | pres | - |
| | | crip | espe |
| | | tion | cial |
| | | | ly |
| | | | for |
| | | | subh |
| | | | alos |
+--------+------+------+------+
| ``rvir | kpc/ | viri | |
| `` | h | al | |
| | | radi | |
| | | us | |
| | | set | |
| | | by | |
| | | `Bry | |
| | | an | |
| | | & | |
| | | Norm | |
| | | an | |
| | | (199 | |
| | | 8) < | |
| | | http | |
| | | ://c | |
| | | dsad | |
| | | s.u- | |
| | | stra | |
| | | sbg. | |
| | | fr/a | |
| | | bs/1 | |
| | | 998A | |
| | | pJ.. | |
| | | .495 | |
| | | ...8 | |
| | | 0B>` | |
| | | __ | |
| | | pres | |
| | | crip | |
| | | tion | |
+--------+------+------+------+
| ``chil | | | |
| d_r`` | | | |
+--------+------+------+------+
| ``vmax | km/s | | |
| _r`` | | | |
+--------+------+------+------+
| ``mgra | Msol | grav | |
| v`` | /h | itat | |
| | | iona | |
| | | l | |
| | | mass | |
+--------+------+------+------+
| ``vmax | km/s | Maxi | |
| `` | | mum | |
| | | circ | |
| | | ular | |
| | | velo | |
| | | city | |
+--------+------+------+------+
| ``rvma | kpc/ | radi | |
| x`` | h | us | |
| | | at | |
| | | maxi | |
| | | mum | |
| | | circ | |
| | | ular | |
| | | velo | |
| | | city | |
+--------+------+------+------+
| ``rs`` | kpc/ | NFW | |
| | h | scal | |
| | | e | |
| | | radi | |
| | | us | |
+--------+------+------+------+
| ``rs_k | kpc/ | Klyp | bett |
| lypin` | h | in | er |
| ` | | defi | for |
| | | ned | smal |
| | | scal | ler |
| | | e | halo |
| | | radi | s |
| | | us | |
+--------+------+------+------+
| ``vrms | km/s | rms | |
| `` | | velo | |
| | | city | |
+--------+------+------+------+
| ``Jx`` | | x-co | |
| | | mpon | |
| | | ent | |
| | | angu | |
| | | lar | |
| | | mome | |
| | | ntum | |
+--------+------+------+------+
| ``Jy`` | | y-co | |
| | | mpon | |
| | | ent | |
| | | angu | |
| | | lar | |
| | | mome | |
| | | ntum | |
+--------+------+------+------+
| ``Jz`` | | z-co | |
| | | mpon | |
| | | ent | |
| | | angu | |
| | | lar | |
| | | mome | |
| | | ntum | |
+--------+------+------+------+
| ``Epot | | Pote | |
| `` | | ntia | |
| | | l | |
| | | ener | |
| | | gy | |
| | | of | |
| | | the | |
| | | halo | |
+--------+------+------+------+
| ``spin | | Peeb | This |
| `` | | les | shou |
| | | defi | ld |
| | | ned | only |
| | | spin | be |
| | | para | used |
| | | mete | for |
| | | r | halo |
| | | | s |
| | | | with |
| | | | a |
| | | | larg |
| | | | e |
| | | | numb |
| | | | er |
| | | | of |
| | | | part |
| | | | icle |
| | | | s |
| | | | (~50 |
| | | | 0+) |
+--------+------+------+------+
| ``spin | | Bull | See |
| _bullo | | ock' | abov |
| ck`` | | s | e. |
| | | modi | |
| | | fied | |
| | | spin | |
| | | para | |
| | | mete | |
| | | r | |
+--------+------+------+------+
| ``xoff | | Posi | |
| `` | | tion | |
| | | offs | |
| | | et | |
| | | para | |
| | | mete | |
| | | r | |
| | | abs( | |
| | | cent | |
| | | er | |
| | | of | |
| | | mass | |
| | | posi | |
| | | tion | |
| | | - | |
| | | halo | |
| | | posi | |
| | | tion | |
| | | ) | |
+--------+------+------+------+
| ``voff | | Velo | |
| `` | | city | |
| | | offs | |
| | | et | |
| | | para | |
| | | mete | |
| | | r | |
| | | abs( | |
| | | cent | |
| | | er | |
| | | of | |
| | | mass | |
| | | velo | |
| | | city | |
| | | - | |
| | | halo | |
| | | velo | |
| | | city | |
| | | ) | |
+--------+------+------+------+
| ``b_to | | Halo | |
| _a`` | | elli | |
| | | ptic | |
| | | ity | |
| | | b/a | |
+--------+------+------+------+
| ``c_to | | Halo | |
| _a`` | | elli | |
| | | ptic | |
| | | ity | |
| | | c/a | |
+--------+------+------+------+
| ``b_to | | Halo | |
| _a2`` | | elli | |
| | | ptic | |
| | | ity | |
| | | b/a | |
| | | (dif | |
| | | fere | |
| | | nt | |
| | | pres | |
| | | crip | |
| | | tion | |
| | | ) | |
+--------+------+------+------+
| ``c_to | | Halo | |
| _a2`` | | elli | |
| | | ptic | |
| | | ity | |
| | | c/a | |
| | | (dif | |
| | | fere | |
| | | nt | |
| | | pres | |
| | | crip | |
| | | tion | |
| | | ) | |
+--------+------+------+------+
| ``A[x] | | x-ax | |
| `` | | is | |
| | | for | |
| | | elli | |
| | | ptic | |
| | | ity | |
| | | a | |
+--------+------+------+------+
| ``A[y] | | y-xi | |
| `` | | s | |
| | | for | |
| | | elli | |
| | | ptic | |
| | | ity | |
| | | a | |
+--------+------+------+------+
| ``A[z] | | z-xi | |
| `` | | s | |
| | | for | |
| | | elli | |
| | | ptic | |
| | | ity | |
| | | a | |
+--------+------+------+------+
| ``A2[x | | x-ax | |
| ]`` | | is | |
| | | for | |
| | | elli | |
| | | ptic | |
| | | ity | |
| | | a | |
| | | (dif | |
| | | fere | |
| | | nt | |
| | | pres | |
| | | crip | |
| | | tion | |
| | | ) | |
+--------+------+------+------+
| ``A2[y | | y-xi | |
| ]`` | | s | |
| | | for | |
| | | elli | |
| | | ptic | |
| | | ity | |
| | | a | |
| | | (dif | |
| | | fere | |
| | | nt | |
| | | pres | |
| | | crip | |
| | | tion | |
| | | ) | |
+--------+------+------+------+
| ``A2[z | | z-xi | |
| ]`` | | s | |
| | | for | |
| | | elli | |
| | | ptic | |
| | | ity | |
| | | a | |
| | | (dif | |
| | | fere | |
| | | nt | |
| | | pres | |
| | | crip | |
| | | tion | |
| | | ) | |
+--------+------+------+------+
| ``T/ab | | Viri | |
| s(U)`` | | al | |
| | | rati | |
| | | o | |
| | | (kin | |
| | | etic | |
| | | /abs | |
| | | (pot | |
| | | enti | |
| | | al)) | |
+--------+------+------+------+
| ``min_ | | Mini | |
| pos_er | | mum | |
| r`` | | erro | |
| | | r | |
| | | in | |
| | | posi | |
| | | tion | |
+--------+------+------+------+
| ``min_ | | Mini | |
| vel_er | | mum | |
| r`` | | erro | |
| | | r | |
| | | in | |
| | | bulk | |
| | | velo | |
| | | city | |
+--------+------+------+------+
| ``min_ | | Mini | |
| bulkve | | mum | |
| l_err` | | bulk | |
| ` | | velo | |
| | | city | |
| | | erro | |
| | | r. | |
+--------+------+------+------+
| ``tota | | The | |
| l_npar | | tota | |
| t`` | | l | |
| | | numb | |
| | | er | |
| | | of | |
| | | part | |
| | | icle | |
| | | s | |
| | | asso | |
| | | ciat | |
| | | ed | |
| | | with | |
| | | this | |
| | | halo | |
| | | (sub | |
| | | s | |
| | | incl | |
| | | uded | |
| | | ) | |
+--------+------+------+------+
| ``npar | | The | |
| t`` | | numb | |
| | | er | |
| | | of | |
| | | part | |
| | | icle | |
| | | s | |
| | | asso | |
| | | ciat | |
| | | ed | |
| | | with | |
| | | a | |
| | | halo | |
| | | (doe | |
| | | s | |
| | | not | |
| | | incl | |
| | | ude | |
| | | subh | |
| | | alos | |
| | | ) | |
+--------+------+------+------+
.. raw:: html
</center>
Merger Trees (consistent-trees)
-----------
.. Attention::
Access to the halo catalogues is currently public (accessible via MIT server).
The consistent-trees output it similar to that of the rockstar catalogue
except now there are additional paramters which connect the halos in
time.
.. raw:: html
<center>
+----------+--------+------------+
| variable | units | definition |
| le | | niti. |
| | | on |
+========+========+======+
| ``id`` | - | id |
| | | of |
| | | the |
| | | halo |
| | | in |
| | | the |
| | | merg |
| | | er |
| | | tree |
+--------+--------+------+
| ``pid` | - | the |
| ` | | next |
| | | leve |
| | | l |
| | | up |
| | | halo |
| | | if |
| | | the |
| | | halo |
| | | is a |
| | | subh |
| | | alo |
| | | (oth |
| | | erwi |
| | | se |
| | | -1) |
+--------+--------+------+
| ``upid | - | the |
| `` | | ID |
| | | of |
| | | the |
| | | uppe |
| | | rmos |
| | | t |
| | | leve |
| | | l |
| | | of |
| | | the |
| | | halo |
| | | if |
| | | the |
| | | halo |
| | | is a |
| | | subh |
| | | alo |
| | | (oth |
| | | erwi |
| | | se |
| | | -1) |
+--------+--------+------+
| ``bfid | - | brea |
| `` | | dth |
| | | firs |
| | | t |
| | | orde |
| | | r |
| | | id |
+--------+--------+------+
| ``dfid | - | dept |
| `` | | h |
| | | firs |
| | | t |
| | | orde |
| | | r |
| | | id |
+--------+--------+------+
| ``orig | - | orig |
| id`` | | inal |
| | | id |
| | | as |
| | | iden |
| | | tifi |
| | | ed |
| | | in |
| | | Rock |
| | | star |
| | | cata |
| | | logu |
| | | e |
+--------+--------+------+
| ``last | - | last |
| prog_d | | prog |
| fid`` | | enit |
| | | or |
| | | dept |
| | | h |
| | | firs |
| | | t |
| | | id |
+--------+--------+------+
| ``snap | - | snap |
| `` | | shot |
+--------+--------+------+
| ``scal | - | scal |
| e`` | | e |
| | | fact |
| | | or |
+--------+--------+------+
| ``desc | - | desc |
| _id`` | | enda |
| | | nt |
| | | id |
+--------+--------+------+
| ``num_ | - | numb |
| prog`` | | er |
| | | of |
| | | prog |
| | | enit |
| | | ors |
+--------+--------+------+
| ``phan | - | Nonz |
| tom`` | | ero |
| | | if |
| | | the |
| | | halo |
| | | is a |
| | | "pha |
| | | ntom |
| | | " |
| | | halo |
| | | , |
| | | i.e. |
| | | a |
| | | halo |
| | | not |
| | | foun |
| | | d |
| | | by |
| | | Rock |
| | | star |
| | | but |
| | | inse |
| | | rted |
| | | by |
| | | cons |
| | | iste |
| | | nt-t |
| | | rees |
| | | to |
| | | link |
| | | time |
| | | step |
| | | s |
+--------+--------+------+
| ``sam_ | Msol/h | smoo |
| mvir`` | | thed |
| | | viri |
| | | al |
| | | mass |
+--------+--------+------+
| ``mvir | Msol/h | viri |
| `` | | al |
| | | mass |
| | | (Bri |
| | | an |
| | | & |
| | | Norm |
| | | an |
| | | pres |
| | | crip |
| | | tion |
| | | ) |
| | | (it |
| | | is |
| | | actu |
| | | ally |
| | | mgra |
| | | v |
| | | from |
| | | Rock |
| | | star |
| | | ) |
+--------+--------+------+
| ``rvir | kpc | viri |
| `` | | al |
| | | radi |
| | | us |
| | | (Bri |
| | | an |
| | | & |
| | | Norm |
| | | an |
| | | pres |
| | | crip |
| | | tion |
| | | ) |
+--------+--------+------+
| ``rs`` | kpc | scal |
| | | e |
| | | radi |
| | | us |
+--------+--------+------+
| ``vrms | km/s | rms |
| `` | | velo |
| | | city |
+--------+--------+------+
| ``mmp` | - | most |
| ` | | mass |
| | | ive |
| | | prog |
| | | enit |
| | | or |
+--------+--------+------+
| ``scal | - | scal |
| e_of_l | | e |
| ast_MM | | fact |
| `` | | or |
| | | of |
| | | last |
| | | majo |
| | | r |
| | | merg |
| | | er |
+--------+--------+------+
| ``vmax | km/s | maxi |
| `` | | mum |
| | | circ |
| | | ular |
| | | velo |
| | | city |
+--------+--------+------+
| ``posX | kpc | x-po |
| `` | | siti |
| | | on |
+--------+--------+------+
| ``posY | kpc | y-po |
| `` | | siti |
| | | on |
+--------+--------+------+
| ``posZ | kpc | z-po |
| `` | | siti |
| | | on |
+--------+--------+------+
| ``pecV | km/s | x-di |
| X`` | | r |
| | | pecu |
| | | liar |
| | | velo |
| | | city |
+--------+--------+------+
| ``pecV | km/s | y-di |
| Y`` | | r |
| | | pecu |
| | | liar |
| | | velo |
| | | city |
+--------+--------+------+
| ``pecV | km/s | z-di |
| Z`` | | r |
| | | pecu |
| | | liar |
| | | velo |
| | | city |
+--------+--------+------+
| ``Jx`` | | x-co |
| | | mpon |
| | | ent |
| | | angu |
| | | lar |
| | | mome |
| | | ntum |
+--------+--------+------+
| ``Jy`` | | y-co |
| | | mpon |
| | | ent |
| | | angu |
| | | lar |
| | | mome |
| | | ntum |
+--------+--------+------+
| ``Jz`` | | z-co |
| | | mpon |
| | | ent |
| | | angu |
| | | lar |
| | | mome |
| | | ntum |
+--------+--------+------+
| ``spin | | spin |
| `` | | para |
| | | mete |
| | | r |
| | | (Pee |
| | | bles |
| | | vers |
| | | ion) |
+--------+--------+------+
| ``spin | | spin |
| _bullo | | para |
| ck`` | | mete |
| | | r |
| | | (Bul |
| | | lock |
| | | modi |
| | | fied |
| | | vers |
| | | ion) |
+--------+--------+------+
| ``m200 | Msol/h | viri |
| c_all` | | al |
| ` | | mass |
| | | of |
| | | all |
| | | part |
| | | icle |
| | | s |
| | | base |
| | | d |
| | | on |
| | | 200x |
| | | crit |
| | | ical |
| | | dens |
| | | ity |
+--------+--------+------+
| ``m200 | Msol/h | viri |
| b`` | | al |
| | | mass |
| | | of |
| | | all |
| | | part |
| | | icle |
| | | s |
| | | base |
| | | d |
| | | on |
| | | 200x |
| | | back |
| | | grou |
| | | nd |
| | | dens |
| | | ity |
+--------+--------+------+
| ``xoff | kpc | Posi |
| `` | | tion |
| | | offs |
| | | et |
| | | para |
| | | mete |
| | | r |
| | | abs( |
| | | cent |
| | | er |
| | | of |
| | | mass |
| | | posi |
| | | tion |
| | | - |
| | | halo |
| | | posi |
| | | tion |
| | | ) |
+--------+--------+------+
| ``voff | kpc | Velo |
| `` | | city |
| | | offs |
| | | et |
| | | para |
| | | mete |
| | | r |
| | | abs( |
| | | cent |
| | | er |
| | | of |
| | | mass |
| | | velo |
| | | city |
| | | - |
| | | halo |
| | | velo |
| | | city |
| | | ) |
+--------+--------+------+
| ``b_to | - | Halo |
| _a(500 | | elli |
| c)`` | | ptic |
| | | ity |
| | | b/a |
+--------+--------+------+
| ``c_to | - | Halo |
| _a(500 | | elli |
| c)`` | | ptic |
| | | ity |
| | | c/a |
+--------+--------+------+
| ``A[x] | | x-ax |
| (500c) | | is |
| `` | | for |
| | | elli |
| | | ptic |
| | | ity |
+--------+--------+------+
| ``A[y] | | y-xi |
| (500c) | | s |
| `` | | for |
| | | elli |
| | | ptic |
| | | ity |
+--------+--------+------+
| ``A[z] | | z-xi |
| (500c) | | s |
| `` | | for |
| | | elli |
| | | ptic |
| | | ity |
+--------+--------+------+
| ``T/ab | - | Viri |
| s(U)`` | | al |
| | | rati |
| | | o |
| | | (kin |
| | | etic |
| | | /abs |
| | | (pot |
| | | enti |
| | | al)) |
+--------+--------+------+
.. raw:: html
</center>
As listed in the previous table, ``consistent-trees`` outputs two
indexes for the connecting the halos, (1) depth-first ordered or (2)
breadth-first ordered. The graphic below indicates what the fundamental
differences are between these two methods.
.. raw:: html
<center>
.. raw:: html
</center>