Template:Infobox galaxy cluster

From Simple English Wikipedia, the free encyclopedia
Jump to navigation Jump to search

Credit: {{{credit}}}
Observation data (Epoch {{{epoch}}})
Right ascension{{{ra}}}
Brightest member{{{brightest_member}}}
Number of galaxies{{{member_no}}}
Richness class{{{richness}}}
Bautz-Morgan classification{{{bmtype}}}
Velocity dispersion{{{velocity_dispersion}}}
ICM temperature{{{temperature}}}
Binding mass{{{mass}}}
X-ray luminosity{{{luminosity}}}
X-ray flux{{{flux}}}
Other designations
Template documentation[view] [edit] [history] [purge]

Infobox for articles on galaxy groups and galaxy clusters. Intended for the creation of new galaxy cluster pages and for updating older pages with outdated infoboxes.

Usage[change source]

{{Infobox galaxy cluster
| name = 
| image = 
| caption = 
| credit = 
| epoch = 
| constellation = 
| ra = {{RA|00|00}}
| dec = {{DEC|±00|00}}
| brightest_member = 
| member_no = 
| richness = 
| bmtype = 
| velocity_dispersion = 
| redshift = 
| distance = {{convert|000|Mpc|Mly|0|abbr=on|lk=on}} {{hub|0.00}}
| temperature = 
| mass = 0{{e|14}} {{hub|0.00}} [[solar mass|M<sub>☉</sub>]]
| luminosity = 
| flux = 
| other_names = 

Parameters[change source]

name[change source]

Name of the object wikilinked to the parent catalog page, i.e. Abell 370, NGC 7318, etc.

image[change source]

Associated image of the object: [[Image:name.png|300px]]

caption[change source]

Text underneath the image.

credit[change source]

To whom do we owe this great pleasure?

epoch[change source]

Equatorial coordinates based on which epoch? If other than J2000, please find or convert to J2000.

constellation[change source]

Wikilink to constellation.

ra[change source]


dec[change source]


brightest_member[change source]

The brightest (visible) member.

member_no[change source]

The number of galaxies belonging to the cluster, out to (at least) the virial radius.

richness[change source]

Abell (or related) richness class. Based on number of members within a magnitude range of m3 to m3+2, where m3 is the magnitude of the third brightest member of the cluster. Not to be mistaken for the total number of galaxies in the cluster. Link to the digital version of the entire Abell Catalog is here.

bmtype[change source]

Bautz-Morgan classification type is available via NASA Extragalactic Database (NED) or the digital version of the Abell Catalog.

velocity_dispersion[change source]

Velocity dispersion of the cluster (as opposed to of only the core).

redshift[change source]

  • z, if ≳ 0.2 : 0.8
  • z (km/s), if ≲ 0.2 : 0.0717 (21 500 km/s)

distance[change source]

NED's default value for the dimensionless Hubble parameter is 0.73 using the WMAP 3-year results, but one is able to change this to match the WMAP 5-year results with h=0.705.

  • If measurement is left in 'units' of h: {{hub|}} gives h−1
  • If h=0.73 is used: {{hub|0.73}} gives h−1
  • {{convert|100|Mpc|Mly|2|abbr=on|lk=on}} {{hub|0.73}} gives 100 Mpc (326.16 Mly) h−1
  • {{convert|100|+/-|20|Mpc|Mly|abbr=on|lk=on}} {{hub|0.73}} gives 100 ± 20 Mpc (326 ± 65 Mly) h−1
  • Use Gpc as appropriate and/or feel free to leave off the light-year conversion if it becomes unwieldy. Parsecs are less ambiguous and are preferred over light-years, especially at cosmological distances (and also at nearby distances were parallaxes can be measured).

temperature[change source]

X-ray temperature of the intracluster medium, usually given in keV.

mass[change source]

  • 1.4{{e|14}} {{hub|0.70}} [[solar mass|M<sub>☉</sub>]] gives 1.4×1014 h−1

luminosity[change source]

  • X-ray luminosity, usually given in erg s-1 for some keV range.
  • 1.4{{e|14}} [[erg]] s<sup>-1</sup> (0.1—2.4 [[electron volt|keV]]) gives 1.4×1014 erg s-1 (0.1—2.4 keV)

flux[change source]

  • X-ray flux, usually given in erg s-1 cm-2 for some keV range.
  • (1.4 ± 0.2){{e|-11}} [[erg]] s<sup>-1</sup> cm<sup>-2</sup> (0.1—2.4 [[electron volt|keV]]) gives (1.4 ± 0.2)×1011 erg s-1 cm-2 (0.1—2.4 keV)

other_names[change source]

Please don't list all the cross-identifications in NED for each object.

Other websites[change source]