J/AJ/139/2034 NGC 6253 stars equivalent widths (Anthony-Twarog+, 2010)
Wiyn open cluster study.
XXXIX. Abundances in NGC 6253 from HYDRA spectroscopy of the Li 6708Å region.
Anthony-Twarog B.J., Deliyannis C.P., Twarog B.A., Cummings J.D.,
Maderak R.M.
<Astron. J., 139, 2034-2051 (2010)>
=2010AJ....139.2034A 2010AJ....139.2034A
ADC_Keywords: Clusters, open ; Abundances ; Equivalent widths
Keywords: open clusters and associations: individual (NGC 6253, NGC 6791) -
stars: abundances - techniques: spectroscopic
Abstract:
High-dispersion spectra of 89 potential members of the old,
super-metal-rich open cluster, NGC 6253, have been obtained with the
HYDRA multi-object spectrograph. Based upon radial-velocity
measurements alone, 47 stars at the turnoff of the cluster
color-magnitude diagram (CMD) and 18 giants are identified as
potential members.
Description:
Spectra of 89 stars in NGC 6253 were obtained in 2005, 2006, and 2007
with the Cerro Tololo Inter-American Observatory Blanco 4 m telescope
equipped with the HYDRA multi-object spectrograph.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
stars.dat 55 90 Star positions from WEBDA, Anthony-Twarog et al.
(2003, Cat. J/AJ/125/1383) [added at CDS]
table1.dat 61 89 NGC 6253 star identifications and radial velocities
table2.dat 31 15 Iron abundances from synthesis for RG members
table3.dat 114 38 Measured equivalent widths for MS/TO stars
table4.dat 72 40 Abundances for TO/MS Stars in NGC 6253
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See also:
J/AJ/125/1383 : Stromgren photometry of NGC 6253 (Anthony-Twarog+, 2003)
J/A+A/465/185 : Element abundances of 7 stars of NGC 6253 (Sestito+, 2007)
J/A+A/505/1129 : BVRIJHK and proper motions in NGC 6253 (Montalto+, 2009)
J/A+A/509/A17 : R light curves of NGC 6253 variables (De Marchi+, 2010)
J/MNRAS/327/23 : CCD UBVRI photometry of 7 open star clusters (Sagar+, 2001)
J/A+A/535/A39 : Radial velocity survey toward NGC 6253 (Montalto+, 2011)
Byte-by-byte Description of file: stars.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- WEBDA WEBDA identification number
8- 28 A21 --- OName Other name (1)
32- 33 I2 h RAh Right ascension (J2000)
35- 36 I2 min RAm Right ascension (J2000)
38- 42 F5.2 s RAs Right ascension (J2000)
44 A1 --- DE- Declination sign (J2000)
45- 46 I2 deg DEd Declination (J2000)
48- 49 I2 arcmin DEm Declination (J2000)
51- 55 F5.2 arcsec DEs Declination (J2000)
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Note (1): Other names (from Simbad):
* <Cl* NGC 6253 BTT NNNN> from Bragaglia et al., 1997MNRAS.284..477B 1997MNRAS.284..477B
* <Cl* NGC 6253 TAD NNN> from Twarog et al., 2003, Cat. J/AJ/125/1383
* <[MPD2009] NNNNN> from Montalto et al., 2009, Cat. J/A+A/505/1129
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Byte-by-byte Description of file: table1.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- WEBDA WEBDA identification number
6- 11 F6.2 km/s RV Radial velocity
13- 17 F5.2 km/s e_RV rms uncertainty on RV
19 I1 --- o_RV Number of RV observations
21- 25 F5.2 mag Vmag ?=- V magnitude
27- 32 F6.3 mag Vmag1 ?=- Montalto et al. (2009, Cat. J/A+A/505/1129)
V magnitude (see "History" section below)
34- 37 F4.2 mag B-V B-V colour index
39- 43 F5.3 mag B-V1 ?=- Montalto et al. (2009, Cat. J/A+A/505/1129)
B-V colour index
45- 49 A5 --- Mm1 Membership from Radial Velocity (1)
51- 53 I3 --- S/N Ratio of signal to noise per pixel
55- 56 I2 % P(mu) ?=- Proper-motion membership probability
58- 61 A4 --- Mmb [NM ?BS] Final Membership / Blue Straggler
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Note (1): m refers to probable member single stars; nm may include both
probable non-members and undetected binaries.
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- WEBDA WEBDA identification number
6- 9 F4.2 [Sun] [Fe/H] Metallicity
11- 14 F4.2 [Sun] e_[Fe/H] rms uncertainty on [Fe/H]
16 I1 --- N(lambda) Number of observed lines
18- 21 I4 K Teff Effective temperature
23- 26 F4.2 [cm/s2] logg Surface gravity
28- 31 F4.2 km/s Vt Turbulent velocity ξ
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 4 I4 --- WEBDA WEBDA identification number
6- 9 F4.1 0.1pm EW1 ?=- Equivalent width for Fe lambda=6591.3Å,
EP=4.59, loggf=-1.81
11- 15 F5.1 0.1pm EW2 ?=- Equivalent width for Fe lambda=6592.9Å,
EP=2.73, loggf=-1.30
17- 21 F5.1 0.1pm EW3 ?=- Equivalent width for Fe lambda=6593.9Å,
EP=2.43, loggf=-2.23
23- 26 F4.1 0.1pm EW4 ?=- Equivalent width for Fe lambda=6597.6Å,
EP=4.79, loggf=-0.90
28- 31 F4.1 0.1pm EW5 ?=- Equivalent width for Fe lambda=6608.0Å,
EP=2.28, loggf=-3.93
33- 37 F5.1 0.1pm EW6 ?=- Equivalent width for Fe lambda=6609.1Å,
EP=2.56, loggf=-2.57
39- 42 F4.1 0.1pm EW7 ?=- Equivalent width for Fe lambda=6646.9Å,
EP=2.61, loggf=-3.87
44- 47 F4.1 0.1pm EW8 ?=- Equivalent width for Fe lambda=6703.6Å,
EP=2.76, loggf=-2.98
49- 52 F4.1 0.1pm EW9 ?=- Equivalent width for Fe lambda=6710.3Å,
EP=1.48, loggf=-4.71
54- 57 F4.1 0.1pm EW10 ?=- Equivalent width for Fe lambda=6715.4Å,
EP=4.61, loggf=-1.38
59- 62 F4.1 0.1pm EW11 ?=- Equivalent width for Fe lambda=6725.4Å,
EP=4.10, loggf=-2.16
64- 68 F5.1 0.1pm EW12 ?=- Equivalent width for Fe lambda=6726.7Å,
EP=4.61, loggf=-1.03
70- 73 F4.1 0.1pm EW13 ?=- Equivalent width for Fe lambda=6733.1Å,
EP=4.64, loggf=-1.33
75- 79 F5.1 0.1pm EW14 ?=- Equivalent width for Fe lambda=6750.2Å,
EP=2.42, loggf=-2.65
81- 85 F5.1 0.1pm EW15 ?=- Equivalent width for Fe lambda=6572.7Å,
EP=4.64, loggf=-1.18
87- 91 F5.1 0.1pm EW16 ?=- Equivalent width for Ni lambda=6643.6Å,
EP=1.68, loggf=-1.92
93- 97 F5.1 0.1pm EW17 ?=- Equivalent width for Ni lambda=6767.8Å,
EP=1.83, loggf=-2.02
99-102 F4.1 0.1pm EW18 ?=- Equivalent width for Ni lambda=6772.3Å,
EP=3.66, loggf=-0.86
104-108 F5.1 0.1pm EW19 ?=- Equivalent width for Ca lambda=6717.7Å,
EP=2.71, loggf=-0.26
110-114 F5.1 0.1pm EW20 ?=- Equivalent width for Si lambda=6721.8Å,
EP=5.86, loggf=-1.07
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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- 4 I4 --- WEBDA WEBDA identification number
6- 9 F4.2 [-] [Fe/H] Metallicity
11- 14 F4.2 [-] E_[Fe/H] Error on [Fe/H], upper value
16- 19 F4.2 [-] e_[Fe/H] Error on [Fe/H], lower value
21- 22 I2 --- o_[Fe/H] ?=- Number of lines used for [Fe/H]
24- 27 F4.2 [-] Ni Ni abundance
29- 32 F4.2 [-] E_Ni Error on Ni, upper value
34- 37 F4.2 [-] e_Ni Error on Ni, lower value
39- 42 F4.2 [-] Ca ?=- Ca abundance
44- 47 F4.2 [-] e_Ca ?=- rms uncertainty on Ca
49- 52 F4.2 [-] Si ?=- Si abundance
54- 57 F4.2 [-] e_Si ?=- rms uncertainty on Si
59- 62 I4 K Teff Effective temperature
64- 67 F4.2 [cm/s2] logg Surface gravity
69- 72 F4.2 km/s Vt Turbulent velocity ξ
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History:
* 28-May-2012: From electronic version of the journal
* 14-Jul-2012: Vmag1 in table1 from Montalto et al. corrected at CDS for
star#596 (#27204 in Montalto 2009, Cat. J/A+A/505/1129) into 15.379
(was indicated as 13.379); star given as Vmag=22.0 in Bragaglia et al.
1997MNRAS.284..477B 1997MNRAS.284..477B
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(End) Patricia Vannier [CDS] 28-May-2012