J/A+A/530/A31 Stellar parameters in 10 globular cluster fields (Lane+, 2011)
AAOmega spectroscopy of 29351 stars in fields centered on ten Galactic
globular clusters.
Lane R.R., Kiss L.L., Lewis G.F., Ibata R.A., Siebert A., Bedding T.R.,
Szekely P., Szabo G.M.
<Astron. Astrophys. 530, A31 (2011)>
=2011A&A...530A..31L 2011A&A...530A..31L
ADC_Keywords: Clusters, globular ; Spectroscopy ; Effective temperatures ;
Abundances ; Equivalent widths ; Radial velocities ;
Rotational velocities
Keywords: globular clusters: general - Galaxy: halo
Abstract:
Here we publish the extracted stellar parameters from a recent large
spectroscopic survey of ten globular clusters. A brief review of the
project is also presented. Stellar parameters have been extracted from
individual stellar spectra using both a modified version of the Radial
Velocity Experiment (RAVE) pipeline and a pipeline based on the
parameter estimation method of RAVE. We publish here all parameters
extracted from both pipelines. We calibrate the metallicity and
convert this to [Fe/H] for each star and, furthermore, we compare the
velocities and velocity dispersions of the Galactic stars in each
field to the Besanc,on Galaxy model. We find that the model does not
correspond well with the data, indicating that the model is probably
of little use for comparisons with pencil beam survey data such as
this.
Description:
Various stellar parameters were extracted, using two different
reduction pipelines, from individual stellar spectra obtained with
AAOmega on the Anglo-Australia Telescope. These spectra were obtained
from ten fields centered on Galactic globular clusters, namely M4,
M12, M22, M30, M53, M55, M68, NGC 288, NGC 6752 and 47 Tuc. Stellar
parameters provided include the radial velocity, sum of the equivalent
widths of the calcium triplet lines, equatorial coordinates, I
magnitude, V magnitude, effective temperature, surface gravity,
metallicity, rotational velocity, J magnitude, H magnitude, K
magnitude, distance from the cluster centre, position angle with
respect to the cluster centre and whether each star was determined to
be a member of the cluster.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 121 28244 Parameters from the RAVE pipeline for all fields
table2.dat 118 8788 Parameters from the KISS pipeline for fields
centered on M22, M30, M53, M68
table3.dat 147 20563 Parameters from the KISS pipeline for fields
centered on 47 Tuc, M4, M12, M55, NGC 288, NGC 6752
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See also:
II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)
III/257 : RAVE second data release (Zwitter+, 2008)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- Cluster Cluster at centre of field (e.g. 47tuc)
9- 25 F17.15 rad RArad Right Ascension (J2000)
27- 44 F18.15 rad DErad Declination (J2000)
46- 50 F5.2 mag Imag Estimated I magnitude
52- 61 A10 --- Field Field name (G2)
63- 65 I03 --- Fib AAOmega fibre number (G2)
67- 74 F8.2 km/s HRV Heliocentric radial velocity
76- 82 F7.2 km/s e_HRV Heliocentric radial velocity uncertainty
84- 89 I6 K Teff Effective temperature
91- 95 F5.2 [cm/s2] logg Logarithm of the surface gravity
97-101 F5.2 --- [m/H] Uncalibrated metallicity
103-107 F5.2 --- [a/Fe] α element abundance
109-112 F4.2 km/s xi Microturbulence velocity ξ
114-117 I4 km/s Vrot Rotational velocity, v.sin(i)
119-121 A3 --- Mm [yes no] Member of cluster (G1)
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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- 7 A7 --- Cluster Cluster at centre of field (e.g. M22)
10- 19 A10 --- Field Field name (G2)
21- 23 I03 --- Fib AAOmega fibre number (G2)
25- 32 F8.3 km/s HRV Heliocentric radial velocity
34- 40 F7.3 km/s e_HRV Heliocentric radial velocity uncertainty
42- 46 F5.2 0.1nm W(CaT) Sum of the equivalent widths of the
calcium triplet lines
48- 59 F12.8 deg RAdeg Right Ascension (J2000)
61- 72 F12.8 deg DEdeg Declination (J2000)
74- 79 F6.3 mag Imag Estimated I magnitude
81- 85 I5 K Teff Effective temperature
87- 89 F3.1 [cm/s2] logg Logarithm of the surface gravity
91- 94 F4.1 --- [m/H] Uncalibrated metallicity
96- 98 I3 km/s Vrot Rotational velocity, v.sin(i)
100-105 F6.1 arcsec Dist Distance from the cluster centre
107-114 F8.3 deg PA [-180/180] Position angle of distance vector
116-118 A3 --- Mm [yes no] Member of cluster (G1)
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- Cluster Cluster at centre of field (e.g. NGC6752)
10- 19 A10 --- Field Field name (G2)
21- 23 I03 --- Fib AAOmega fibre number (G2)
25- 32 F8.3 km/s HRV Heliocentric radial velocity
34- 40 F7.3 km/s e_HRV Heliocentric radial velocity uncertainty
42- 47 F6.2 0.1nm W(CaT) Sum of the equivalent widths of the
calcium triplet lines
49- 60 F12.8 deg RAdeg Right Ascension (J2000)
62- 73 F12.8 deg DEdeg Declination (J2000)
75- 80 F6.3 mag Imag Estimated I magnitude
82- 87 F6.3 mag Vmag Estimated V magnitude
89- 93 I5 K Teff Effective temperature
95- 97 F3.1 [cm/s2] logg Logarithm of the surface gravity
99-102 F4.1 --- [m/H] Uncalibrated metallicity
104-106 I3 km/s Vrot Rotational velocity, v.sin(i)
108-113 F6.3 mag Jmag 2MASS/J magnitude (Cat. II/246)
115-120 F6.3 mag Hmag 2MASS/H magnitude (Cat. II/246)
122-127 F6.3 mag Kmag 2MASS/Ks magnitude (Cat. II/246)
129-134 F6.1 arcsec Dist Distance from the cluster centre
136-143 F8.3 deg PA [-180/180] Position angle
145-147 A3 --- Mm [yes no] Member of cluster (G1)
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Global notes:
Note (G1): Denotes whether the star was classified as a member or not in
Papers 1, 2 & 3.
* Paper 1 : Lane et al., 2009MNRAS.400..917L 2009MNRAS.400..917L
* Paper 2 : Lane et al., 2010MNRAS.401.2521L 2010MNRAS.401.2521L, 2010ApJ...711L.122L 2010ApJ...711L.122L
* Paper 3 : Lane et al., 2010MNRAS.406.2732L 2010MNRAS.406.2732L
Note (G2): Stars are identified as [field]_[fibre number], where [field] is
the field name and [fibre number] is the AAOmega fibre (e.g.
ngc50246b380 designates the field ngc5024_6b and fibre number 380).
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Acknowledgements:
Richard Lane, rlane(at)astro-udec.cl
History:
03-May-2011: on-line data
20-Apr-2018: in table2, Vmag corrected in Imag
(End) Richard Lane [Univ. de Concepcion], Patricia Vannier [CDS] 14-Apr-2011