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J/A+A/535/A39       Radial velocity survey toward NGC 6253   (Montalto+, 2011)

VLT multi-epoch radial velocity survey toward NGC 6253. Analysis of three transiting planetary candidates. Montalto M., Villanova S., Koppenhoefer J., Piotto G., Desidera S., De Marchi F., Poretti E., Bedin L.R., Saviane I. <Astron. Astrophys., 535, A39 (2011)> =2011A&A...535A..39M
ADC_Keywords: Clusters, open ; Radial velocities ; Velocity dispersion Keywords: planetary systems - techniques: radial velocities - open cluster and associations: individual: NGC 6253 Abstract: One of the most metal-rich open cluster of the Galaxy, NGC 6253 is a target of special interest in the search for extrasolar planets, the study of stellar populations, and the chemical/dynamical evolution of the Galactic disk. We present the results of two photometric campaigns and a VLT multi-epoch radial velocity survey toward the open cluster NGC 6253. We complement our analysis with photometric, proper motion, and radial velocity data available from previous studies of this cluster, and analyze three planetary candidates found in the field of NGC 6253. Description: We derived homogeneous radial velocity measurements for stars located at the turn-off, sub-giant, red-giant branch, red-clump, and blue straggler regions of the cluster. We also analyzed a comparison sample of surrounding field stars. Spectra were obtained with the UVES and GIRAFFE spectrographs at the VLT during three epochs in August 2008. The photometric data that appear in this work are based on two major photometric campaigns conducted at the 2.2m La Silla Telescope in 2004 and 2009 respectively. The 2004 photometric campaign was conducted during June 2004 (program ID:073.C-0227[A]). In April 2009, we used the 2.2m Telescope in La Silla for 14 consecutive nights between 1-14 April during Max Planck Institute for Extraterrestrial Physics reserved time (program ID:083.A-9001[A]). Only part of the time was allocated to NGC 6253 observations The spectroscopic observations were obtained using the FLAMES facility at the UT2 (Kueyen telescope), in Paranal, Chile. The data were obtained during three nights between August 17, 2008 and August 25, 2008. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table9.dat 111 36 Proper motion cluster members stars table10.dat 111 103 Proper motion non members or stars with doubtful/undefined proper motions table11.dat 61 139 ID cross-correlation table
See also: 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) Byte-by-byte Description of file: table9.dat table10.dat
Bytes Format Units Label Explanations
1- 6 I6 --- [MPD2009] ? Identification number of Montalto et al. (2009, Cat. J/A+A/505/1129) 7 A1 --- n_[DPM2010] [*] Individual note (1) 8- 14 A7 --- [DPM2010] Identification number of de Marchi et al. (2010, Cat. J/A+A/509/A17). 16- 28 F13.9 deg RAdeg Right ascension in decimal degrees (J2000) 30- 42 F13.9 deg DEdeg Declination in decimal degrees (J2000) 44- 49 F6.3 mag Vmag V magnitude 51- 56 F6.3 mag Rmag ?=- R magnitude 57 A1 --- n_Rmag [*] Photometry from Bragaglia et al. (2) 58- 62 F5.3 mag B-R ?=- B-R color index 63 A1 --- n_B-R [*] Photometry from Bragaglia et al. (2) 64- 71 F8.3 km/s <RV> Mean observed radial velocity of the star 73- 79 F7.3 km/s sigma Observed dispersion of the radial velocity measurements 81- 87 F7.3 --- Rsigma Ratio of the observed radial velocity dispersion to the dispersion threshold for binary detection (σobs/<{sigmaobs}>) 89- 90 I2 % Mpm ?=- Proper motion membership probability 92- 98 A7 --- Class Star classification code (3) 100 I1 --- Bin [0/1] binarity index (4) 102 A1 --- Inst [UG] Spectrograph used to study the star, either UVES (U), or GIRAFFE (G) 104-109 F6.3 arcmin Dist Projected radial distance from the cluster center 111 I1 --- N Number of measurements obtained
Note (1): Star 30341 is a very likely field star sharing the same proper motion of cluster members, as discussed in Sect. 5. Note (2): The R band magnitude for star 45410 and the B-V color of star 45368 are taken from Bragaglia et al. (1997MNRAS.284..477B, see text). Note (3): Classification code as follows: MS = main sequence SGB = subgiant branch RGB = red-giant branch RC = red clump BSS = blue straggler RSCVn = RS Canum Venaticorum variable EW = contact binary EA = Algol variable, detached system LON = Long period variable >10days RO1 = rotational variable, see De Marchi et al., 2010 (Cat. J/A+A/509/A17) RO2 = rotational variable, see De Marchi et al., 2010 (Cat. J/A+A/509/A17) RR = RR Lyrae variable DSCT = δ Scuti variable TRS = transiting planetary candidate Note (4): Binarity code as follows: 1 = if, on the basis only of our own radial velocities, the star is considered a binary 0 = if it is considered a single star
Byte-by-byte Description of file: table11.dat
Bytes Format Units Label Explanations
1- 6 I6 --- [MPD2009] ? Numbering of Montalto et al. (2009, Cat. J/A+A/505/1129) 8- 14 A7 --- [DPM2010] Numbering of De Marchi et al. (2010, Cat. J/A+A/509/A17) 16- 19 I4 --- WEBDA ? Numbering of the WEBDA (http://www.univie.ac.at/webda) 21- 61 A41 --- Ref Reference for those stars that have already been spectroscopically studied by other authors
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 31-Jan-2012
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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