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J/A+AS/109/375 Blue stragglers in open clusters (Ahumada+, 1995)
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Catalogue of blue stragglers in open clusters
Ahumada J., Lapasset E.
<Astron. Astrophys. Suppl. Ser. 109, 375 (1995)>
=1995A&AS..109..375A (SIMBAD/NED Reference)
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ADC_Keywords: Clusters, open; Stars, blue ; Stars, peculiar
Keywords: catalogues - open clusters and associations: general -
stars: blue stragglers
Description:
An amount of 959 blue straggler candidates were selected from their
position in the colour-magnitude diagram in 390 open clusters of all
ages. A set of basic data is given for every cluster and blue
straggler.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 89 399 *Open cluster data
table2.dat 112 959 Blue stragglers in open clusters
notes.dat 80 786 Individual notes
refs.dat 80 389 References
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Note on table1.dat:
For completeness we include some clusters with published
colour-magnitude diagrams although the corresponding tables of
magnitudes were not available to us at the time of preparing this
catalogue. These clusters are: Basel 4, NGC 2323, NGC 2910, NGC 3330,
NGC 6451, Basel 5, Trumpler 31, NGC 6603, and NGC 6811.
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Cluster designation
15- 16 I2 h RAh Right ascension 2000.0
18- 21 F4.1 min RAm Right ascension 2000.0
26 A1 --- DE- Declination sign
27- 28 I2 deg DEd Declination 2000.0
30- 31 I2 arcmin DEm Declination 2000.0
36- 39 F4.2 mag E(B-V) ? Reddening
43- 47 F5.2 mag (B-V)0 ? De-reddened turnoff colour
52- 55 F4.2 [yr] log(Age) Decimal logarithm of the age in years
58- 62 F5.1 arcmin ApDiam ? Apparent cluster diameter
68- 70 I3 --- N2 Number of stars on the main sequence to two
magnitudes below the turnoff
75- 76 I2 --- Nbs Number of blue straggler candidates
81- 87 A7 --- r_Name Photometry source(s)
89 A1 --- Note [ *] An asterisk indicates a note detailed
in file notes.dat
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Cluster designation
15- 25 A11 --- BluStrg Blue straggler designation (according to the
referenced photometry)
27 I1 --- Class Blue straggler classification (following the
criteria explained in the paper)
32- 37 F6.3 mag Vmag ? V magnitude
38 A1 --- u_Vmag Uncertainty flag on V
40- 45 F6.3 mag B-V ? B-V colour index
46 A1 --- u_B-V Uncertainty flag on B-V
47 A1 --- n_U-B [ d] Note on U-B. A 'd' stands for double
50- 55 F6.3 mag U-B ? U-B colour-index
56 A1 --- u_U-B Uncertainty flag on U-B
61- 63 A3 --- Phot *Photometry in which the magnitudes are given.
67- 70 F4.2 --- r/R ? Relative radius of the blue straggler
location
75- 77 I3 ---- r_Name ? Photometry source
82 A1 --- Note [ *] An asterisk indicates a note detailed
in file "notes.dat"
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Note on Phot: the type of photometry is defined by:
pe = photoelectric,
pg = photographic,
CCD = charge-coupled-device
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Byte-by-byte Description of file: notes.dat
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Bytes Format Units Label Explanations
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1- 13 A13 --- Name Cluster name, repeated when several lines
16- 80 A65 --- Text Text of note
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Byte-by-byte Description of file: refs.dat
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Bytes Format Units Label Explanations
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1- 3 I3 --- RefNo Reference number, repeated when several lines
5- 80 A76 --- Text Reference as an ascii text.
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History:
* 28-Sep-1994: Prepared at CDS (Patricia Bauer)
* 01-Mar-1999: notes & refs files reformatted.
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(End) Patricia Bauer [CDS] 28-Sep-1994