J/AJ/117/238 LMC extended catalog (Bica+, 1999)
A revised and extended catalog of Magellanic system clusters, associations, and
emission nebulae. II. The Large Magellanic Cloud.
Bica E.L.D., Schmitt H.R., Dutra C.M., Oliveira H.L.
<Astron. J. 117, 238 (1999)>
=1999AJ....117..238B 1999AJ....117..238B (SIMBAD/NED BibCode)
ADC_Keywords: Magellanic Clouds ; Surveys ; Associations, stellar ;
Clusters, open ; Nebulae
Keywords: catalogs - galaxies: ISM - galaxies: star clusters -
galaxies: stellar content - Magellanic Clouds
Abstract:
A survey of extended objects in the Large Magellanic Cloud was carried
out on the ESO/SERC R and J Sky Survey Atlases, checking entries in
previous catalogs and searching for new objects. The census provided
6659 objects including star clusters, emission-free associations, and
objects related to emission nebulae. Each of these classes contains
three subclasses with intermediate properties, which are used to infer
total populations. The survey includes cross identifications among
catalogs, and we present 3246 new objects. We provide accurate
positions, classification, and homogeneous measurements of sizes and
position angles, as well as information on cluster pairs and
hierarchical relation for superimposed objects. This unification and
enlargement of catalogs is important for future searches of fainter
and smaller new objects. We discuss the angular and size distributions
of the objects of the different classes. The angular distributions
show two off-centered systems with different inclinations, suggesting
that the LMC disk is warped. The present catalog together with its
previous counterpart for the SMC and the inter-Cloud region provide a
total population of 7847 extended objects in the Magellanic System.
The angular distribution of the ensemble reveals important clues on
the interaction between the LMC and SMC.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 90 37 LMC catalogs
table2.dat 133 6659 Catalog of star clusters, associations and
emission nebulae in the LMC
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See also:
VII/183 : Cluster System of the LMC (Kontizas+ 1990)
J/ApJS/101/41 : SMC and Bridge extended catalog, Paper I. (Bica+ 1995)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- Acro Acronym
16 A1 --- n_Acro [ab] Note (1)
18- 21 I4 --- N Number of entries
23- 29 A7 --- Type Types
31- 55 A25 --- Ref Reference (Author names)
57- 75 A19 --- BibCode BibCode for the reference
77- 90 A14 --- Note Notes
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Note (1): a: Entries from a deep plate presented by Hodge & Sexton,
1966AJ.....71..363H 1966AJ.....71..363H
b: Entries from a list of possible objects in Zaritsky et al.,
1997AJ....114.1002Z 1997AJ....114.1002Z
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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- 5 A5 --- Plate Sky Survey plate quadrant
7- 8 I2 h RAh *Right ascension (J2000)
10- 11 I2 min RAm Right ascension (J2000)
13- 14 I2 s RAs Right ascension (J2000)
16 A1 --- DE- Declination sign (J2000)
17- 18 I2 deg DEd *Declination (J2000)
20- 21 I2 arcmin DEm Declination (J2000)
23- 24 I2 arcsec DEs Declination (J2000)
26- 27 A2 --- Class *[ACN ] Classification
29- 34 F6.2 arcmin Maj Size of the major axis
36- 40 F5.2 arcmin Min Size of the minor axis
42- 44 I3 deg PA ? Position angle of major axis
45-103 A59 --- Names Designations in different catalogs (detailed
in table1)
104-133 A30 --- Rem remarks
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Note on RAh, DEd:
The original electronic table indicated, in its ascii version,
B1950 right ascention and declination; these are actually J2000
positions, as indicated in section 2 of the paper.
Note on Class:
C: star cluster
A: association
N: emission nebula
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History: From AJ electronic version
(End) James Marcout, Patricia Bauer [CDS] 12-Mar-1999