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J/A+A/526/A112      Radial velocities of HARPS metal-poor sample (Santos+, 2011)

The HARPS search for southern extrasolar planets. XXV. Results from the metal-poor sample. Santos N.C., Mayor M., Bonfils X., Dumusque X., Bouchy F., Figueira P., Lovis C., Melo C., Pepe F., Queloz D., Segransan D., Sousa S.G., Udry S. <Astron. Astrophys. 526, A112 (2011)> =2011A&A...526A.112S
ADC_Keywords: Stars, metal-deficient ; Planets ; Radial velocities ; Abundances, [Fe/H] Keywords: techniques: radial velocities - techniques: spectroscopic - planetary and satellites: formation - planetary systems - stars: abundances - Abstract: Searching for extrasolar planets around stars of different metallicity may provide strong constraints to the models of planet formation and evolution. In this paper we present the overall results of a HARPS (a high-precision spectrograph mostly dedicated to deriving precise radial velocities) program to search for planets orbiting a sample of 104 metal-poor stars (selected [Fe/H] below -0.5). Radial velocity time series of each star are presented and searched for signals using several statistical diagnostics. tars with detected signals are presented, including 3 attributed to the presence of previously announced giant planets orbiting the stars HD171028, HD181720, and HD190984. Several binary stars and at least one case of a coherent signal caused by activity-related phenomena are presented. One very promising new, possible giant planet orbiting the star HD107094 is discussed, and the results are analyzed in light of the metallicity-giant planet correlation. We conclude that the frequency of giant planets orbiting metal-poor stars may be higher than previously thought, probably reflecting the higher precision of the HARPS survey. In the metallicity domain of our sample, we also find evidence that the frequency of planets is a steeply rising function of the stellar metal content, as found for higher metallicity stars. Description: The tables contain the star list, its parameters, and the HARPS radial velocity data. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 38 104 List of targets, coordinates and magnitudes table3.dat 84 88 Sample star parameters tablerv.dat 44 1184 Radial velocities for 91 stars
See also: J/A+A/474/293 : Radial velocities of GJ 674 (Bonfils+, 2007) J/A+A/469/L43 : Radial velocities of Gl 581 (Udry+, 2007) J/A+A/496/513 : RV of 6 stars with long-period giant planets (Moutou+, 2009) J/A+A/496/521 : Radial velocities of HD45364 (Correia+, 2009) J/A+A/496/527 : Radial velocity of HD 47186 and HD 181433 (Bouchy+, 2009) J/A+A/507/487 : GJ 581 radial velocity curve (Mayor+, 2009) J/A+A/512/A46 : Radial velocities of BD-08 2823 (Hebrard+, 2010) J/A+A/512/A47 : Radial velocities of 3 stars with giant planets (Santos+ 2010) J/A+A/512/A48 : HD125612, HD215497, HIP5158 radial velocities (Lo Curto+ 2010) J/A+A/523/A15 : HARPS XXIII: RV data for the 8 targets (Naef+, 2010) J/A+A/526/A111 : HD 85390, 90156 and 103197 radial velocity (Mordasini+, 2011) J/A+A/526/A141 : HIP 85647 & Gl 676A radial velocities (Forveille+, 2011) J/A+A/527/A63 : 7 new HARPS planetary systems radial velocities (Moutou+ 2011) J/A+A/528/A112 : Radial velocities of HD 10180 (Lovis+, 2011) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Star Star name 12- 13 I2 h RAh Right ascension (J2000.0) 15- 16 I2 min RAm Right ascension (J2000.0) 18- 21 F4.1 s RAs Right ascension (J2000.0) 23 A1 --- DE- Declination sign (J2000) 24- 25 I2 deg DEd Declination (J2000) 27- 28 I2 arcmin DEm Declination (J2000) 30- 31 I2 arcsec DEs Declination (J2000) 33- 36 F4.1 mag Vmag Visual magnitude 38 A1 --- RV [*] * indicates RV data in tablerv.dat
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Star Star name 12- 13 I2 --- Nmes Number of measurements 15- 18 I4 d Span Total span of the measurements 20- 25 F6.1 km/s Gamma Average radial velocity 27- 30 I4 K Teff Effective temperature 32- 34 I3 K e_Teff Error in effective temperature 36- 39 F4.2 [cm/s2] logg Surface gravity 41- 44 F4.2 [cm/s2] e_logg Error in surface gravity 46- 50 F5.2 [Sun] [Fe/H] Stellar metallicity 52- 55 F4.2 [Sun] e_[Fe/H] Error in stellar metallicity 57- 61 F5.3 --- SMW Activity level index SMW 63- 67 F5.3 --- e_SMW Error in activity level index SMW 69- 73 F5.3 mag B-V B-V colour index 75- 79 F5.2 --- log(R'HK) Activity index log(R'HK) 81 A1 --- l_vsini Limit flag on vsin 82- 84 F3.1 km/s vsini Projected rotational velocity
Byte-by-byte Description of file: tablerv.dat
Bytes Format Units Label Explanations
1- 10 A10 --- Star Star name 12- 25 F14.6 d JD Julian Date 27- 36 F10.5 km/s RV Radial velocity 38- 44 F7.5 km/s e_RV Error in radial velocity
Acknowledgements: Nuno C. Santos, nuno.santos(at)astro.up.pt References: Pepe et al., Paper I 2004A&A...423..385P Santos et al., Paper II 2004A&A...426L..19S Lovis et al., Paper III 2005A&A...437.1121L Moutou et al., Paper IV 2005A&A...439..367M Udry et al., Paper V 2006A&A...447..361U Bonfils et al., Paper VI 2005A&A...443L..15B Lo Curto et al., Paper VII 2006A&A...451..345L Pepe et al., Paper VIII 2007A&A...462..769P Naef et al., Paper IX 2007A&A...470..721N Bonfils et al., Paper X 2007A&A...474..293B, Cat. J/A+A/474/293 Udry et al., Paper XI 2007A&A...469L..43U, Cat. J/A+A/469/L43 Santos et al., Paper XII 2007A&A...474..647S Mayor et al., Paper XIII 2009A&A...493..639M, Cat. J/A+A/493/639 Forveille et al., Paper XIV 2009A&A...493..645F, Cat. J/A+A/493/645 Moutou et al., Paper XV 2009A&A...496..513M, Cat. J/A+A/496/513 Correia et al., Paper XVI 2009A&A...496..521C, Cat. J/A+A/496/521 Bouchy et al., Paper XVII 2009A&A...496..527B, Cat. J/A+A/496/527 Mayor et al., Paper XVIII 2009A&A...507..487M, Cat. J/A+A/507/487 Correia et al., Paper XIX 2010A&A...511A..21C Hebrard et al., Paper XX 2010A&A...512A..46H, Cat. J/A+A/512/A46 Santos et al., Paper XXI 2010A&A...512A..47S, Cat. J/A+A/512/A47 Lo Curto et al., Paper XXII 2010A&A...512A..48L, Cat. J/A+A/512/A48 Naef et al., Paper XXIII 2010A&A...523A..15N, Cat. J/A+A/523/A15 Mordasini et al., Paper XXIV 2011A&A...526A.111M, Cat. J/A+A/526/A111 Forveille et al., Paper XXVI 2011A&A...526A.141F, Cat. J/A+A/526/A141 Moutou et al., Paper XXVII 2011A&A...527A..63M, Cat. J/A+A/527/A63 Lovis et al., Paper XXVIII 2011A&A...528A.112L, Cat. J/A+A/528/A112
(End) Nuno Santos [CAUP, Portugal], Patricia Vannier [CDS] 15-Nov-2010
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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