2000PASP..112..966S


Query : 2000PASP..112..966S

2000PASP..112..966S - Publ. Astron. Soc. Pac., 112, 966-976 (2000/July-0)

High-precision radial velocity measurements of some southern stars.

SKULJAN J., HEARNSHAW J.B. and COTTRELL P.L.

Abstract (from CDS):

Precise absolute radial velocities have been obtained at Mount John University Observatory for a number of southern stars, using the 1 m telescope and fiber-fed echelle spectrograph. Only the stars that have been observed three or more times are presented, including 14 IAU standards and 11 program stars. Six echelle orders in the green (5000-5600 Å) are used. Many delicate steps have been undertaken in order to maintain the same conditions in both recording and reducing the spectra over a period of 27 months. The Th-Ar lamp has been used for the wavelength calibration. The absolute radial velocities have been determined by cross-correlation with synthetic spectra computed by R. L. Kurucz. The zero point has been adjusted using blue-sky spectra. An additional strong correlation, between the measured velocities and photon counts in stellar and Th-Ar spectra, has been detected for the PM3000 CCD camera and has been eliminated. A resulting precision of about 20-30 m.s–1 has been obtained. The overall uncertainty of the absolute radial velocities was estimated to be about 100-200 m.s–1. The present paper is a continuation of our recent previous work, including more details on the reduction process and the presentation of the radial velocities for more stars.

Abstract Copyright: ∼

Journal keyword(s): Instrumentation: Detectors - Methods: Data Analysis - Techniques: Radial Velocities

Simbad objects: 25

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Number of rows : 25
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026
#notes
1 * bet Hyi PM* 00 25 45.07036 -77 15 15.2860 3.52 3.41 2.79 2.28 1.94 G0V 631 0
2 * bet Cet PM* 00 43 35.37090 -17 59 11.7827 3.90 3.02 2.01 1.29 0.78 G9.5IIICH-1 543 1
3 * alf Hor PM* 04 14 00.1142226166 -42 17 39.726755131 5.97 4.96 3.86 3.00 2.41 K2III 150 0
4 * alf Tau LP? 04 35 55.23907 +16 30 33.4885 4.32 2.40 0.86 -0.37 -1.31 K5+III 1298 2
5 * bet Lep PM* 05 28 14.7228880318 -20 45 33.997988694 4.13 3.66 2.84 2.19 1.75 G5II-IIIa: 254 0
6 * gam Lep PM* 05 44 27.7906169580 -22 26 54.187756254 4.08 4.07 3.60 3.15 2.89 F6V 459 0
7 * bet Col PM* 05 50 57.5922846925 -35 46 05.914636356 5.49 4.28 3.12 2.27 1.69 K1III_CN+1 153 0
8 * sig Pup SB* 07 29 13.8326369825 -43 18 05.167418899 6.54 4.77 3.25 2.04 1.12 K5III 141 0
9 * alf Hya * 09 27 35.24270 -08 39 30.9583 5.14 3.42 1.97 0.93 0.16 K3IIIa 455 1
10 * mu. Vel PM* 10 46 46.1750979464 -49 25 12.935780341 4.16 3.59 2.69 2.01 1.52 G6III 192 0
11 * ksi Hya ** 11 33 00.1149306166 -31 51 27.447975478 5.17 4.47 3.54 2.84 2.36 G7IIIb 269 0
12 * gam Cru PM* 12 31 09.95961 -57 06 47.5684 5.01 3.23 1.64 -0.02 -1.44 M3.5III 291 1
13 * bet Crv PM* 12 34 23.2349224335 -23 23 48.336778328 4.17 3.52 2.64 2.03 1.59 G5IIBa0.3 272 0
14 * 89 Vir PM* 13 49 52.2828951024 -18 08 03.009309756   6.018 4.959     K0+IIIb 116 0
15 * alf Boo RG* 14 15 39.67207 +19 10 56.6730 2.46 1.18 -0.05 -1.03 -1.68 K1.5IIIFe-0.5 2417 1
16 * 5 Ser PM* 15 19 18.7974409923 +01 45 55.466382064   5.60   4.8   F8IV 355 0
17 * del Oph PM* 16 14 20.7390218758 -03 41 39.572826363 6.30 4.34 2.75 1.46 0.43 M0.5III 377 0
18 * phi Oph PM* 16 31 08.3669673955 -16 36 45.831122231 5.90 5.19 4.27 3.62 3.18 G8+IIIa 129 0
19 * alf TrA * 16 48 39.89508 -69 01 39.7626   3.33 1.88     K2III_Ba1 251 0
20 * kap Ara * 17 26 00.0431284872 -50 38 00.623818572   6.236 5.193     G8III 87 0
21 * bet Oph PM* 17 43 28.3519097803 +04 34 02.293206489 5.150 3.930 2.750 1.96 1.38 K2IIICN0.5 490 0
22 * del Sgr * 18 20 59.6428936493 -29 49 41.168145329   4.069 2.668     K2.5IIIaCN0.5 184 0
23 HD 183275 PM* 19 29 52.1859279672 -26 59 08.179477620   6.62 5.49     K1/2III 49 0
24 * bet Aqr * 21 31 33.5320760349 -05 34 16.229381029 4.27 3.71 2.89 2.29 1.84 G0Ib 463 0
25 * bet Gru LP? 22 42 40.05027 -46 53 04.4752 5.33 3.73 2.11 0.20 -1.57 M4.5III 209 1

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