J/A+A/476/217 Fundamental parameters of five old open clusters (Carraro+, 2007)
Old open clusters in the outer Galactic disk.
Carraro G., Geisler D., Villanova S., Frinchaboy P.M., Majewski S.R.
<Astron. Astrophys., 476, 217-227 (2007)>
=2007A&A...476..217C 2007A&A...476..217C
ADC_Keywords: Clusters, open ; Radial velocities ; Abundances, [Fe/H] ;
Photometry
Keywords: open clusters and associations: general -
stars: fundamental parameters - Galaxy: disk - Galaxy: evolution -
Galaxy: structure
Abstract:
The outer parts of the Milky Way disk are believed to be one of the
main arenas where the accretion of external material in the form of
dwarf galaxies and subsequent formation of streams is taking place.
The Monoceros stream and the Canis Major and Argo over-densities are
notorious examples. Understanding whether what we detect is the
signature of accretion or, more conservatively, simply the intrinsic
nature of the disk, represents one of the major goals of modern
Galactic astronomy.
We try to shed more light on the properties of the outer disk by
exploring the properties of distant anti-center old open clusters.
We want to verify whether distant clusters follow the chemical and
dynamical behavior of the solar vicinity disk, or whether their
properties can be better explained in terms of an extra-galactic
population.
Description:
The spectroscopic data come from the ESO-VLT, and were collected in
service mode between October and December 2005 with the FLAMES
on-board VLT+UVES high-resolution, echelle spectrograph.
Objects:
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RA (2000) DE Designation(s)
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06 41 16 -16 29.2 Berkeley 25 = C 0638-164
06 22 06 -06 19.0 Berkeley 73 = C 0619-063
06 49 16 -23 57.5 Berkeley 75 = C 0647-239
06 48.9 -10 32 Ruprecht 4 = C 0646-104
06 57.7 -13 13 Ruprecht 7 = C 0655-131
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table2.dat 74 23 Radial velocities plus photometry of program stars
table4.dat 48 23 Atmospheric parameters of program stars
tab167.dat 131 5 Cluster revised parameters
(tables 1, 5 and 6 of the paper)
table5.dat 116 5 Mean abundance analysis from cluster members
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See also:
J/A+A/442/917 : BVI photometry in Berkeley 73, 75 and 25 (Carraro+, 2005)
J/MNRAS/360/655 : CCD BVI photometry of Ruprecht 4 (Carraro+, 2005)
Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Cluster Cluster name
13- 14 I2 --- Star Star number within the cluster (G1)
16- 17 I2 h RAh Right ascension (J2000)
19- 20 I2 min RAm Right ascension (J2000)
22- 26 F5.2 s RAs Right ascension (J2000)
28 A1 --- DE- Declination sign (J2000)
29- 30 I2 deg DEd Declination (J2000)
32- 33 I2 arcmin DEm Declination (J2000)
35- 39 F5.2 arcsec DEs Declination (J2000)
41- 45 F5.2 mag Bmag B magnitude
47- 51 F5.2 mag Vmag V magnitude
53- 57 F5.2 mag Imag I magnitude
59- 64 F6.2 km/s HRV Heliocentric radial velocity
66- 69 F4.2 km/s e_HRV rms uncertainty on HRV
71 I1 --- o_HRV Number of observation for HRV
73- 74 A2 --- mRV [NM M] Membership from RV data
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Cluster Cluster name
13- 14 I2 --- Star Star number within the cluster (G1)
16- 19 I4 K Teff Effective temperature (typical error 100K)
21- 24 F4.2 [cm/s2] logg Surface gravity (typical error 0.2)
26- 29 F4.2 km/s Vt Micro-turbulent velocity (typical error 0.1km/s)
31- 34 F4.2 --- log(Fe) Fe abundance
36- 40 F5.2 [Sun] [Fe/H] Metallicity
42- 45 F4.2 [Sun] e_[Fe/H] rms uncertainty on [Fe/H]
47- 48 A2 --- mFe [NM M] Menbership from Fe data
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Byte-by-byte Description of file: tab167.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Cluster Cluster name
13- 18 F6.2 deg GLON Galactic longitude
20- 25 F6.2 deg GLAT Galactic latitude
27- 30 F4.1 kpc Disto Distance
32- 34 F3.1 Gyr Ageo Age
36- 40 F5.2 [Sun] [Fe/H] Revised metallicity [Fe/H]
42- 45 F4.2 [Sun] e_[Fe/H] rms uncertainty on [Fe/H]
47- 51 F5.3 --- M Metallicity
53- 56 F4.2 mag E(B-V) Revised colour index
58- 61 F4.2 mag e_E(B-V) rms uncertainty on E(B-V)
63- 67 F5.2 mag m-M Revised distance modulus
69- 72 F4.2 mag e_m-M rms uncertainty on m-M
74- 78 F5.2 kpc Dist Revised distance
80- 82 F3.1 Gyr Age Revised age
84- 86 F3.1 Gyr e_Age rms uncertainty on Age
88- 91 F4.1 kpc X Revised X distance
93- 96 F4.1 kpc Y Revised Y distance
98-101 F4.1 kpc z Revised Z distance
103-106 F4.1 kpc RGC Revised Galactocentric distance
108-113 F6.1 km/s RV Revised radial velocity
115-118 F4.2 km/s e_RV rms uncertainty on RV
120-125 F6.1 km/s VGSR Revised GSR velocity (1)
127-131 F5.1 km/s Vrot Revised rotational velocity
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Note (1): GSR velocity defined as
VGRS=HRV+9cod(b)cod(l)+(220+12).cos(b)sin(l0+7sin(b)
where (9, 12, 7) are the components of the Sun peculiar motion
and 220 is the Local Standard of Rest rotational velocity.
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- Cluster Cluster name
13- 17 F5.2 --- [Fe/H] Abundance [Fe/H] determined from 150 lines
19- 22 F4.2 --- e_[Fe/H] rms uncertainty on [Fe/H]
24- 28 F5.2 --- [Mg/H] Abundance [Mg/H] determined from 3 lines
30- 33 F4.2 --- e_[Mg/H] rms uncertainty on [Mg/H]
35- 39 F5.2 --- [Si/H] Abundance [Si/H] determined from 13 lines
41- 44 F4.2 --- e_[Si/H] rms uncertainty on [Si/H]
46- 50 F5.2 --- [Ca/H] Abundance [Ca/H] determined from 16 lines
52- 55 F4.2 --- e_[Ca/H] rms uncertainty on [Ca/H]
57- 61 F5.2 --- [Ti/H] Abundance [Ti/H] determined from 33 lines
63- 66 F4.2 --- e_[Ti/H] rms uncertainty on [Ti/H]
68- 72 F5.2 --- [Mg/Fe] Abundance [Mg/Fe]
74- 77 F4.2 --- e_[Mg/Fe] rms uncertainty on [Mg/Fe]
79- 83 F5.2 --- [Si/Fe] Abundance [Si/Fe]
85- 88 F4.2 --- e_[Si/Fe] rms uncertainty on [Si/Fe]
90- 94 F5.2 --- [Ca/Fe] Abundance [Ca/Fe]
96- 99 F4.2 --- e_[Ca/Fe] rms uncertainty on [Ca/Fe]
101-105 F5.2 --- [Ti/Fe] Abundance [Ti/Fe]
107-110 F4.2 --- e_[Ti/Fe] rms uncertainty on [Ti/Fe]
112-116 F5.2 --- [alpha/Fe] Abundance [alpha/Fe]
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Global notes:
Note (G1): Stars identified as
Cl* Berkeley NN CGM NNNN and Cl* Ruprecht N CGB NN in Simbad
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 25-Jan-2008