J/MNRAS/455/3126 New Galactic star clusters and candidates (Camargo+, 2016)
Characterizing star cluster formation with WISE:
652 newly found star clusters and candidates.
Camargo D., Bica E., Bonatto C.
<Mon. Not. R. Astron. Soc., 455, 3126-3135 (2016)>
=2016MNRAS.455.3126C 2016MNRAS.455.3126C (SIMBAD/NED BibCode)
ADC_Keywords: Milky Way ; Clusters, open ; Associations, stellar ; Morphology
Keywords: catalogues - Galaxy: disc - open clusters and associations: general -
Galaxy: structure
Abstract:
We report the discovery of 652 star clusters, stellar groups and
candidates in the Milky Way with Wide-field Infrared Survey Explorer
(WISE). Most of the objects are projected close to Galactic plane and
are embedded clusters. The present sample complements a similar study
(Paper I, Bica et al., 2015, Cat. J/other/NewA/34.84) which provided
437 star clusters and alike. We find evidence that star formation
processes span a wide range of sizes, from populous dense clusters to
small compact embedded ones, sparse stellar groups or in relative
isolation. The present list indicates multiple stellar generations
during the embedded phase, with giant molecular clouds collapsing into
several clumps composing an embedded cluster aggregate. We investigate
the field star decontaminated colour-magnitude diagrams and radial
density profiles of nine cluster candidates in the list, and derive
their parameters, confirming them as embedded clusters.
Description:
We recently reported the discovery of 446 star clusters, stellar
clusters and candidates, mostly projected on the Galactic disc. They
were designated Camargo 1 (C1)-C446, in a series of analyses. (i) In
Paper I (Bica et al., 2015, Cat. J/other/NewA/34.84, we presented the
first large list: C1-C437. (ii) In Paper II (Camargo et al.,
2015MNRAS.448.1930C 2015MNRAS.448.1930C), we analysed C438 and C439, two rare high
Galactic latitude ECs that were formed in the halo. (iii) In Paper III
(Camargo et al.. 2015MNRAS.450.4150C 2015MNRAS.450.4150C), we provided the ECs C440-C446,
in a study of Spiral Arm tracers.
This paper discoveries of star clusters and alike are designated
C447-C1098, thus amounting to 652 new entries (Table 1).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 120 652 The new list of star clusters or candidates
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See also:
J/other/NewA/34.84 : New Galactic embedded cluster candidates (Camargo+, 2015)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- --- [Camargo]
9- 12 I4 --- Camargo [447/1098] Target sequential number
14- 19 F6.2 deg GLON Galactic longitude
21- 26 F6.2 deg GLAT Galactic latitude
28- 29 I2 h RAh Right ascension (J2000)
31- 32 I2 min RAm Right ascension (J2000)
34- 35 I2 s RAs Right ascension (J2000)
38 A1 --- DE- Declination sign (J2000)
39- 40 I2 deg DEd Declination (J2000)
42- 43 I2 arcmin DEm Declination (J2000)
45- 46 I2 arcsec DEs Declination (J2000)
48- 52 F5.2 arcmin Size1 Cluster size (major)
53 A1 --- --- [x]
54- 58 F5.2 arcmin Size2 Cluster size (minor)
60- 64 A5 --- Type Cluster Type (1)
65-120 A56 --- Com Comments
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Note (1): Type as follows:
EC embedded cluster
ECC = open cluster candidate
EGr = stellar group
OC = open cluster
OCC = open cluster candidate
lPOCR = not explained in the paper
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History:
From electronic version of the journal
References:
Bica et al., Paper I 2015NewA...34...84C 2015NewA...34...84C, Cat. J/other/NewA/34.84
Camargo et al., Paper II 2015MNRAS.448.1930C 2015MNRAS.448.1930C
Camargo et al.. Paper III 2015MNRAS.450.4150C 2015MNRAS.450.4150C
(End) Patricia Vannier [CDS] 29-Jul-2016