Table information for 'mdr1.FOFMtree'

General

Table Description: Merger trees for FOF-objects

This table is available for ADQL queries and through the TAP endpoint.

Resource Description: This is an extract of the MultiDark Run 1 simulation data. It is used for testing and demonstration purposes only. The full data is available at https://www.cosmosim.org/.

For a list of all services and tables belonging to this table's resource, see Information on resource 'MDR1 - MultiDark Run 1'

Further information

Extensive documentation is available at https://www.cosmosim.org/. See also: Riebe et al. 2013, The MultiDark Database, AN 334, 691, http://adsabs.harvard.edu/abs/2013AN....334..691R for a description of its predecessor www.multidark.org.

Resource Reference URL: MDR1

Citing this table

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:mdr1_FOFMtree,
  year=2016,
  title={{MDR1} - {MultiDark} Run 1},
  author={Riebe K.},
  url={http://gavo.aip.de/tableinfo/mdr1.FOFMtree},
  howpublished={{VO} resource provided by the {AIP} {DaCHS}}
}

Fields

Sorted by DB column index. [Sort alphabetically]

NameTable Head DescriptionUnitUCD
fofTreeId fofTreeId unique id for FOF-group = treeRootId + rank in merger tree (depth first order) N/A meta.id;meta.main
fofId fofId corresponding id of this FOF group in the FOF table N/A meta.id
treeSnapnum treeSnapnum subsequent number of snapshot used for creating the merger tree, not the same number as in FOF table N/A time.epoch
descendantId descendantId fofTreeId for direct descendant (to which the FOF group will merge in the next timestep) N/A meta.id.assoc
lastProgId lastProgId fofTreeId of last progenitor in depth-first order N/A meta.id.assoc
mainLeafId mainLeafId fofTreeId of last leaf on main branch, which is defined by the most massive progenitors N/A meta.id.assoc
treeRootId treeRootId root in merger tree N/A meta.id.assoc
x x comoving position, x-component h-1.Mpc pos.cartesian.x
y y comoving position, y-component h-1.Mpc pos.cartesian.y
z z comoving position, z-component h-1.Mpc pos.cartesian.z
vx vx comoving velocity, x-component km/s phys.veloc;pos.cartesian.x
vy vy comoving velocity, y-component km/s phys.veloc;pos.cartesian.y
vz vz comoving velocity, z-component km/s phys.veloc;pos.cartesian.z
np np number of particles inside the FOF group N/A meta.number
mass mass total mass of the FOF group h-1.solMass phys.mass
size size 'radius' of the FOF group, if it were a sphere, computed based on the volume h-1.Mpc phys.size.radius
spin spin spin parameter (Gottloeber and Yepes 2007, ApJ 664, 117) N/A N/A
ix ix spatial index, x-direction N/A pos.cartesian.x
iy iy spatial index, y-direction N/A pos.cartesian.y
iz iz spatial index, z-direction N/A pos.cartesian.z
phkey phkey Peano-Hilbert key N/A N/A

Columns that are parts of indices are marked like this.

Other

VOResource

VO nerds may sometimes need VOResource XML for this table.

More Information on the Base Resource

Extensive documentation is available at https://www.cosmosim.org/. See also: Riebe et al. 2013, The MultiDark Database, AN 334, 691, http://adsabs.harvard.edu/abs/2013AN....334..691R for a description of its predecessor www.multidark.org.