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phase: 3

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J/A+A/645/A110/t...

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Distance {rho}
Position angle {theta}
Distance (x,y)
Galactic
J2000
B1950
Ecl. J2000

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Simple Target List Of Targets Fast Xmatch with large catalogs or Simbad

Target Name (resolved by Sesame) or Position:	Target dimension:
NB: The epoch used for the query is the original epoch of the table(s)	Radius Box size

	J/A+A/645/A110	-1		Hypercompact HII regions (Yang+, 2021) ReadMe+ftp 2021A&A...645A.110Y Similar Catalogs Post annotation
1.	J/A+A/645/A110/table5		Derived physical properties of 116 young HII regions (116 rows) metaJ/A+A/645/A110/table5

Simple Constraint List Of Constraints

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constraints help

applied on Columns (Output Order: + - )

*Show*	*Sort*	*Column*	*Constraint*	*Explain (UCD)*
		recno		Record number assigned by the VizieR team. Should Not be used for identification. ((unassigned);(unassigned);(unassigned);phys.veloc) (RECORD)
		Name	(char)	Galactic name (GLLL.llll+BB.bbbb) ((unassigned);(unassigned);(unassigned);spect.line.veloc;arith) (ID_MAIN)
		ne	cm-3	Electron number density ((unassigned);phys.veloc.orbital;arith.diff;spect.line.veloc) (PHYS_DENSITY_ELECT)
		Diam	pc	physical linear diameter ((unassigned);phys.veloc.orbital;arith.diff;em.UV.10-50nm) (PHYS_SIZE_DIAM)
		EM	pc/cm6	Emission measure ((unassigned);phys.veloc.orbital;arith.diff;(unassigned)) (PHYS_EM-MEASURE)
		nut	GHz	Turnover frequency (time.expo;meta.ref.pid;arith.factor;instr.spect) (OBS_FREQUENCY)
		logNLy	[s-1]	Lyman continuum photons ((unassigned);(unassigned);(unassigned);time.duration;(unassigned);(unassigned)) (PHOT_COUNT-RATE_X)
		Sptype	(char)	Spectral type derived from Lyman continuum flux ((unassigned);phys.veloc.orbital;arith.diff;pos.posAng;meta.main) (SPECT_TYPE_GENERAL)
		fd		⁽ⁿ⁾ fraction of ionizing photons absorbed by dust within HII regions (Note 1) ((unassigned);phys.veloc.orbital;arith.factor;src.var) (NUMBER)
		Cband	(char)	Name of the C-band image in subdirectory images ((unassigned);(unassigned);(unassigned);phys.veloc.orbital) (ID_FILE)
		Kband	(char)	Name of the K-band image in subdirectory images ((unassigned);(unassigned);arith.factor;phys.veloc.orbital) (ID_FILE)
		Xband	(char)	Name of the X-band image in subdirectory images ((unassigned);(unassigned);(unassigned);(unassigned);time.scale)