CDS

2004A&A...422..253R

Query : 2004A&A...422..253R

2004A&A...422..253R - Astronomy and Astrophysics, volume 422, 253-265 (2004/7-4)

Improvement of the CORS method for Cepheids radii determination based on Stroemgren photometry.

RUOPPO A., RIPEPI V., MARCONI M. and RUSSO G.

Abstract (from CDS):

In this paper we present a modified version of the CORS method based on a new calibration of the Surface Brightness function in the Stroemgren photometric system. The method has been tested by means of synthetic light and radial velocity curves derived from nonlinear pulsation models. Detailed simulations have been performed to take into account the quality of real observed curves as well as possible shifts between photometric and radial velocity data. The method has been then applied to a sample of Galactic Cepheids with Stroemgren photometry and radial velocity data to derive the radii and a new PR relation. As a result we find logR=(1.19±0.09)+(0.74 ±0.11)logP (rms=0.07). The comparison between our result and previous estimates in the literature is satisfactory. Better results are expected from the adoption of improved model atmosphere grids.

Abstract Copyright: ∼

Journal keyword(s): stars: distances - stars: fundamental parameters - Cepheids

Simbad objects: 48

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Number of rows : 48
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023 		#notes
1 V* TU Cas cC* 00 26 19.4488112352 +51 16 49.292204088   8.507 7.835     F4 200 0
2 V* V440 Per cC* 02 23 51.7443704208 +55 21 53.502677352 7.76 7.120 6.291     F8Ib-II 180 0
3 V* SU Cas cC* 02 51 58.7511911208 +68 53 18.606894036 6.92 6.44 5.80     F5.5III+ 421 1
4 V* SZ Tau cC* 04 37 14.7776556504 +18 32 34.926940860 7.65 7.13 6.37     F6.7:Ib 302 0
5 V* AW Per cC* 04 47 46.3149227688 +36 43 22.033952832   8.46 7.51   6.200 F0+B6: 217 0
6 V* RX Aur cC* 05 01 23.1881833128 +39 57 37.423107252   8.49 7.62   6.594 G0III 206 0
7 V* T Mon cC* 06 25 12.9996760920 +07 05 08.558582892 8.24 7.20 5.98   4.996 G3Iabv+A0p 461 1
8 * 48 Aur cC* 06 28 34.0881845487 +30 29 34.929596860 6.73 6.23 5.55   4.777 F5.5-G0Ib 379 0
9 V* W Gem cC* 06 34 57.4524971712 +15 19 49.696329540 7.79 7.25 6.54   5.908 F5-G1 210 0
10 * zet Gem cC* 07 04 06.5312384690 +20 34 13.074474962 5.20 4.58 3.79   3.082 G1Ib 562 0
11 V* GI Car cC* 11 14 00.0419068944 -57 54 39.270863844 9.22 9.43 9.13 8.83   F3/5Iab/b 100 0
12 * 35 Cru cC* 12 31 40.3303562544 -59 25 26.124690324 6.60 6.19 5.53     F7Ib/II 138 0
13 V* BF Oph cC* 17 06 05.4979834752 -26 34 50.029842576 8.00 7.61 6.93   6.377 G0II 214 0
14 V* Y Oph cC* 17 52 38.7019050072 -06 08 36.874071816 8.62 7.61 6.21     G3Ia 359 0
15 * gam01 Sgr cC* 18 05 01.2264355704 -29 34 48.322222356 5.99 5.47 4.69   3.869 G0Ib/II 344 0
16 * 12 Sgr cC* 18 13 02.4957687048 -23 07 02.201380968 8.06 7.48 6.59   6.057 F7/8Ib/II 186 0
17 V* WZ Sgr cC* 18 16 59.7160721616 -19 04 32.989734840   9.10 7.45     F7(III) 246 0
18 V* V367 Sct cC* 18 33 35.2353033192 -10 25 38.126250552   13.34 11.580     ~ 170 0
19 V* BQ Ser cC* 18 36 15.9375844368 +04 23 53.693400840   10.49 9.21     F5III 105 0
20 V* EV Sct cC* 18 36 39.6017483712 -08 11 05.361288684   10.99 9.90     G0II 246 0
21 V* Y Sct cC* 18 38 03.3064182864 -08 22 08.163746040   11.2 9.69     F7 126 0
22 V* RU Sct cC* 18 41 56.3818572048 -04 06 38.376404820   10.17 8.82     G5 197 0
23 V* CM Sct cC* 18 42 26.8209024792 -05 20 27.044239848   11.93 10.93   9.406 ~ 86 0
24 V* SS Sct cC* 18 43 43.5111680040 -07 43 51.957172704   9.29 7.90   7.100 F8II 173 0
25 V* V350 Sgr cC* 18 45 17.4968424336 -20 38 50.552766852   8.321 7.450 8.41 6.421 F8Ib/II 213 0
26 V* BB Sgr cC* 18 50 59.8729954248 -20 17 42.829838520 8.07 7.53 6.69   5.824 G0Ib 250 0
27 V* FF Aql cC* 18 58 14.7483041520 +17 21 39.297557628 6.61 6.18 5.38     F6Ib 360 0
28 V* TT Aql cC* 19 08 13.7497129848 +01 17 55.147982640 8.96 7.86 6.50   5.699 G0/2Ib 277 0
29 V* V496 Aql cC* 19 08 20.7707435688 -07 26 15.879957540   8.88 7.79     F8/G0Iab/b 177 0
30 V* FM Aql cC* 19 09 15.9900952128 +10 33 08.961371208 9.76 9.05 7.89   6.725 F2I 184 0
31 V* FN Aql cC* 19 12 47.3148920688 +03 33 26.703677448   9.58 7.96     F8/G0Iab/b 181 0
32 V* V600 Aql cC* 19 21 02.3457719928 +08 30 58.805711244   11.45 10.09   8.204 F8v 97 0
33 V* U Aql cC* 19 29 21.3614645376 -07 02 38.662110240 8.41 7.71 6.61   5.270 F5I/II+B9.8V 279 0
34 V* U Vul cC* 19 36 37.7293294920 +20 19 58.576725768   8.368 7.162   5.556 F8Iab 226 0
35 V* SU Cyg cC* 19 44 48.7341456312 +29 15 52.895535048 7.10 6.88 6.44 6.06 5.84 F2Iab:+B8.0V 294 0
36 V* SV Vul cC* 19 51 30.9059845128 +27 27 36.837672012 8.65 9.00 6.74   5.703 F8Ia 427 0
37 * eta Aql cC* 19 52 28.3689223781 +01 00 20.371980515 5.12 4.61 3.80   3.030 F6Iab+B9.8V 667 0
38 * 10 Sge cC* 19 56 01.2628947456 +16 38 05.262056412 6.45 6.03 5.36 6.81 4.789 F7Ib 345 0
39 V* X Vul cC* 19 57 28.6054979616 +26 33 23.284943352   10.16 8.87   7.147 F8Ia 170 0
40 V* X Cyg cC* 20 43 24.1917118680 +35 35 16.077149700 8.69 7.70 6.47   5.241 F7Ib 462 0
41 V* T Vul cC* 20 51 28.2383768376 +28 15 01.819622952 6.89 6.49 5.77   5.061 F5Ib+A0.8V 335 0
42 V* DT Cyg cC* 21 06 30.2442031296 +31 11 04.762896468 6.70 6.38 5.82     F7II- 308 0
43 V* VZ Cyg cC* 21 51 41.4416202624 +43 08 02.542086024   10.02 8.60   7.948 G0 166 0
44 V* BG Lac cC* 22 00 25.1466021504 +43 26 43.331629776   9.33 8.59   7.793 G0.7 148 0
45 V* Y Lac cC* 22 09 02.9002579560 +51 02 45.084186096   9.79 9.13   8.292 F8 171 0
46 * del Cep cC* 22 29 10.2626640314 +58 24 54.697613650 4.71 4.35 3.75   3.219 F5Iab:+B7-8 719 0
47 V* Z Lac cC* 22 40 52.1457028632 +56 49 46.083774432   9.71 8.57   7.164 F6Ib 224 0
48 V* X Lac cC* 22 49 03.1807630560 +56 25 41.530963044   9.21 8.42     G5 168 0

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2023.09.22-07:03:59

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