1999A&AS..140...79I

Query : 1999A&AS..140...79I

1999A&AS..140...79I - Astron. Astrophys., Suppl. Ser., 140, 79-87 (1999/November-2)

Determination des rayons de Cepheides. V. Vitesses radiales et dimensions de 22 Cepheides galactiques. (Determination of the radii of Cepheids. V. Radial velocities and dimensions of 22 galactic Cepheids.).

IMBERT M.

Abstract (from CDS):

We present radial velocity data for 22 galactic Cepheid stars obtained with Coravel spectrometer. Continuous observation over several years has enabled us to obtain 852 individual velocities covering all the phases of the pulsation. The mean number of measurements per star is 39, ranging from 20 to 113. For each star radial velocity versus phase diagrams have been fitted by analytical relation, and the stellar radius variation has been derived by integration of this relation over the whole period. Using recent ubv photometry of the literature and velocity curves, we have calculated the radii of the stars using a method based on the Baade-Wesselink concept. For these 22 Cepheids we give a linear logarithmic period-radius relation with a range of 2,4 to 45 days.

Abstract Copyright: ∼

Journal keyword(s): stars: cepheids - stars: fundamental parameters - techniques: radial velocities

VizieR on-line data: <Available at CDS (J/A+AS/140/79): object.dat table1.dat table1.ps table1.tex>

Simbad objects: 22

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Number of rows : 22
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 V* SY Cas cC* 00 15 09.8128866000 +58 25 27.442084836   10.69 9.92   8.789 F5 129 0
2 V* VX Per cC* 02 07 48.4808945496 +58 26 36.741616512   10.47 9.37   7.927 G2IV 185 0
3 V* AS Per cC* 04 19 46.8583465440 +48 57 11.777732496   10.94 9.71   8.103 F8 92 0
4 V* RX Aur cC* 05 01 23.1881833128 +39 57 37.423107252   8.49 7.62   6.594 G0III 210 0
5 V* ST Tau cC* 05 45 03.1603367712 +13 34 34.903715808   9.13 7.79   7.149 G0 132 0
6 V* AA Gem cC* 06 06 34.9460908656 +26 19 45.202120572   11.0 9.91   8.540 K0 124 0
7 V* GQ Ori cC* 06 11 13.5830023776 +09 36 44.985287232   9.81 8.88   7.869 B 84 1
8 V* SV Mon cC* 06 21 26.3049089544 +06 28 12.578441700   9.32 8.28     G1Ib 174 0
9 V* RS Ori cC* 06 22 13.1926522608 +14 40 41.255838516   9.34 8.42   7.270 F4Ib 150 0
10 V* W Gem cC* 06 34 57.4524971712 +15 19 49.696329540 7.79 7.25 6.54   5.908 F5-G1 213 0
11 V* UY Mon cC* 06 58 50.3176957800 +09 37 21.835220772   9.89 9.37     F8II 77 0
12 V* BL Her WV* 18 01 09.2240599584 +19 14 56.696475012   10.54 9.70     F0 172 0
13 V* BB Her cC* 18 45 54.1032230136 +12 20 10.110329988   11.1 10.02     G5 94 0
14 V* TT Aql cC* 19 08 13.7497129848 +01 17 55.147982640 8.96 7.86 6.50   5.699 G0/2Ib 281 0
15 V* V1154 Cyg cC* 19 48 15.4661680536 +43 07 36.960514968   9.92 9.14   8.120 G0 101 0
16 V* SV Vul cC* 19 51 30.9059845128 +27 27 36.837672012 8.65 9.00 6.74   5.703 F8Ia 433 0
17 V* CD Cyg cC* 20 04 26.5612467720 +34 06 44.187399612   9.35 8.35     F8-G5Iab-Ib 206 0
18 V* V402 Cyg cC* 20 09 07.7596272456 +37 09 07.088017032   10.9 9.87   8.674 G0III 100 0
19 V* SZ Cyg cC* 20 32 54.2938782720 +46 36 04.584933612   10.80 9.37   7.770 F7.5/8-G6.5Ib 156 0
20 V* BG Lac cC* 22 00 25.1466021504 +43 26 43.331629776   9.33 8.59   7.793 G0.7 152 0
21 V* Y Lac cC* 22 09 02.9002579560 +51 02 45.084186096   9.79 9.13   8.292 F8 175 0
22 V* RR Lac cC* 22 41 26.5260757056 +56 25 58.031784048   9.68 8.87   7.786 K0 174 0

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