UCD information

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UCD PHYS_COLUMN_DENSITY represents: Column Density (by number of particles)

PHYS_COLUMN_DENSITY is leaf #930 at level 2 in the UCD tree (roots are level 0).

Statistics for this UCD:

Column names and units associated to UCD: PHYS_COLUMN_DENSITY
(there are 1053 different column names and 74 different units).

Frequency: column name	Frequency: unit
262 NH 106 logNH 90 NH2 75 logNHI 71 logN 53 NHI 46 nH 30 logNH2 29 N(H2) 22 logN(HI)	910 [cm-2] 471 cm-2 166 10+22cm-2 147 10+20cm-2 122 10+21cm-2 75 [-] 65 10+22/cm2 61 --- 57 10+20/cm2 37 10+12cm-2
Result was truncated to 10 lines (out of 1053). with lines.

Related catalogues in VizieR:

This UCD is used in 2428 columns, in 848 different catalogues (1186 tables) of VizieR.
Click the catalogue number to make a query, and the bibcode to access the reference article.

	Cat. (table)	Title	Bibcode
	III/242/iasd, (1)	ISO Astrophysical Spectroscopic Database (Jourdain de Muizon, 2005)
	V/138/catalog, (1)	A catalogue of cross-matched radio/infrared/X-ray sources (Combi+, 2011)	`2011Ap&SS.331...53C`
	VII/243/dr3qso, (1)	SDSS quasar catalog. III. (Schneider+, 2005)	`2005AJ....130..367S`
	VII/252/dr5qso, (1)	SDSS-DR5 quasar catalog (Schneider+, 2007)	`2007AJ....134..102S`
	VII/260/dr7qso, (1)	The SDSS-DR7 quasar catalog (Schneider+, 2010)	`2010AJ....139.2360S`
	VII/269/dr9q, (1)	SDSS Quasar Catalog, DR9Q (Paris+, 2012)	`2012A&A...548A..66P`
	VII/270/dr10q, (1), (2)	SDSS quasar catalog: tenth data release (Paris+, 2014)	`2014A&A...563A..54P`
	VII/279/dr12q, (1)	SDSS quasar catalog: twelfth data release (Paris+, 2017)	`2017A&A...597A..79P`
	VII/289/dr16q, (1), (2)	SDSS quasar catalog, sixteenth data release (DR16Q) (Lyke+, 2020)	`2020ApJS..250....8L`
	IX/1/Xcat, (1)	Wisconsin soft X-ray diffuse background all-sky Survey (McCammon+ 1983)	`1983ApJ...269..107M`

Only 10 catalogues (out of 848) displayed. this page with catalogues.