VizieR

CfA VizieR . ADAC VizieR . Cambridge (UK) VizieR . IUCAA VizieR . INASAN VizieR .

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VizieR

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phase: 3

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J/A+A/299/39/table2

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IAU/CDS nomenclature

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	J/A+A/299/39	1854		Orion Trapezium area ROSAT PSPC obs. I. (Geier+, 1995) ReadMe+ftp 1995A&A...299...39G Similar Catalogs Post annotation
1.	J/A+A/299/39/table2		X-ray properties of the sample (171 rows) metaJ/A+A/299/39/table2

Simple Constraint List Of Constraints

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Constraint

Explain (UCD)

recno

Record number assigned by the VizieR team. Should Not be used for identification. (meta.record) (RECORD)

ROS-ORI

⁽ⁱ⁾ [1/171] Sequential number (meta.id;meta.main) (ID_MAIN)

NPhot

Net X-ray photon count (phot.count;em.X-ray) (PHOT_COUNTS_X)

CountRate

ct/ks

Count rate (phot.count;em.X-ray) (PHOT_COUNT-RATE_X)

HR1

Hardness ratio HR1 (phot.flux;arith.ratio) (SPECT_HARDNESS-RATIO)

HR2

Hardness ratio HR2 (phot.flux;arith.ratio) (SPECT_HARDNESS-RATIO)

⁽ⁿ⁾ Temperature of corona plasma (phys.temperature) (PHYS_TEMP_XRAY)

N(HI)

10+21cm-2

⁽ⁿ⁾ HI column density (phys.columnDensity) (PHYS_COLUMN_DENSITY)

ALL cols

⁽ⁿ⁾ indicates a possible blank or NULL column

⁽ⁱ⁾indexed column

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	Display UCD1+ UCD1

http://cdsannotations.u-strasbg.fr/annotations/vizierTable//

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If the access to catalogues with VizieR was helpful for your research work,the following acknowledgment would be appreciated: This research has made use of the VizieR catalogue access tool, CDS, Strasbourg, France (DOI: 10.26093/cds/vizier). The original description of the VizieR service was published in A&AS 143, 23