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

Full paper

View the references in ADS

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 - 2024	#notes
1	V* TU Cas	cC*	00 26 19.4488112352	+51 16 49.292204088		8.507	7.835			F4	202	0
2	V* V440 Per	cC*	02 23 51.7443704208	+55 21 53.502677352	7.76	7.120	6.291			F8Ib-II	182	0
3	V* SU Cas	cC*	02 51 58.7511911208	+68 53 18.606894036	6.92	6.44	5.80			F5.5III+	424	1
4	V* SZ Tau	cC*	04 37 14.7776556504	+18 32 34.926940860	7.65	7.13	6.37			F6.7:Ib	304	0
5	V* AW Per	cC*	04 47 46.3149227688	+36 43 22.033952832		8.46	7.51		6.200	F0+B6:	219	0
6	V* RX Aur	cC*	05 01 23.1881833128	+39 57 37.423107252		8.49	7.62		6.594	G0III	208	0
7	V* T Mon	cC*	06 25 12.9996760920	+07 05 08.558582892	8.24	7.20	5.98		4.996	G3Iabv+A0p	463	1
8	* 48 Aur	cC*	06 28 34.0881845487	+30 29 34.929596860	6.73	6.23	5.55		4.777	F5.5-G0Ib	381	0
9	V* W Gem	cC*	06 34 57.4524971712	+15 19 49.696329540	7.79	7.25	6.54		5.908	F5-G1	212	0
10	* zet Gem	cC*	07 04 06.5312384690	+20 34 13.074474962	5.20	4.58	3.79		3.082	G1Ib	566	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	101	0
12	* 35 Cru	cC*	12 31 40.3303562544	-59 25 26.124690324	6.60	6.19	5.53			F7Ib/II	140	0
13	V* BF Oph	cC*	17 06 05.4979834752	-26 34 50.029842576	8.00	7.61	6.93		6.377	G0II	216	0
14	V* Y Oph	cC*	17 52 38.7019050072	-06 08 36.874071816	8.62	7.61	6.21			G3Ia	361	0
15	* gam01 Sgr	cC*	18 05 01.2264355704	-29 34 48.322222356	5.99	5.47	4.69		3.869	G0Ib/II	346	0
16	* 12 Sgr	cC*	18 13 02.4957687048	-23 07 02.201380968	8.06	7.48	6.59		6.057	F7/8Ib/II	188	0
17	V* WZ Sgr	cC*	18 16 59.7160721616	-19 04 32.989734840		9.10	7.45			F7(III)	248	0
18	V* V367 Sct	cC*	18 33 35.2353033192	-10 25 38.126250552		13.34	11.580			F7Ib	173	0
19	V* BQ Ser	cC*	18 36 15.9375844368	+04 23 53.693400840		10.49	9.21			F5III	107	0
20	V* EV Sct	cC*	18 36 39.6017483712	-08 11 05.361288684		10.99	9.90			F8Ib	248	0
21	V* Y Sct	cC*	18 38 03.3064182864	-08 22 08.163746040		11.2	9.69			F7	128	0
22	V* RU Sct	cC*	18 41 56.3818572048	-04 06 38.376404820		10.17	8.82			G5	199	0
23	V* CM Sct	cC*	18 42 26.8209024792	-05 20 27.044239848		11.93	10.93		9.406	~	88	0
24	V* SS Sct	cC*	18 43 43.5111680040	-07 43 51.957172704		9.29	7.90		7.100	F8II	175	0
25	V* V350 Sgr	cC*	18 45 17.4968424336	-20 38 50.552766852		8.321	7.450	8.41	6.421	F8Ib/II	215	0
26	V* BB Sgr	cC*	18 50 59.8729954248	-20 17 42.829838520	8.07	7.53	6.69		5.824	G0Ib	252	0
27	V* FF Aql	cC*	18 58 14.7483041520	+17 21 39.297557628	6.61	6.18	5.38			F6Ib	363	0
28	V* TT Aql	cC*	19 08 13.7497129848	+01 17 55.147982640	8.96	7.86	6.50		5.699	G0/2Ib	279	0
29	V* V496 Aql	cC*	19 08 20.7707435688	-07 26 15.879957540		8.88	7.79			F8/G0Iab/b	180	0
30	V* FM Aql	cC*	19 09 15.9900952128	+10 33 08.961371208	9.76	9.05	7.89		6.725	F2I	186	0
31	V* FN Aql	cC*	19 12 47.3148920688	+03 33 26.703677448		9.58	7.96			F8/G0Iab/b	183	0
32	V* V600 Aql	cC*	19 21 02.3457719928	+08 30 58.805711244		11.45	10.09		8.204	F8v	99	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	282	0
34	V* U Vul	cC*	19 36 37.7293294920	+20 19 58.576725768		8.368	7.162		5.556	F8Iab	228	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	296	0
36	V* SV Vul	cC*	19 51 30.9059845128	+27 27 36.837672012	8.65	9.00	6.74		5.703	F8Ia	429	0
37	* eta Aql	cC*	19 52 28.3689223781	+01 00 20.371980515	5.12	4.61	3.80		3.030	F6Iab+B9.8V	669	0
38	* 10 Sge	cC*	19 56 01.2628947456	+16 38 05.262056412	6.45	6.03	5.36	6.81	4.789	F7Ib	347	0
39	V* X Vul	cC*	19 57 28.6054979616	+26 33 23.284943352		10.16	8.87		7.147	F8Ia	172	0
40	V* X Cyg	cC*	20 43 24.1917118680	+35 35 16.077149700	8.69	7.70	6.47		5.241	F7Ib	464	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	338	0
42	V* DT Cyg	cC*	21 06 30.2442031296	+31 11 04.762896468	6.70	6.38	5.82			F7II-	310	0
43	V* VZ Cyg	cC*	21 51 41.4416202624	+43 08 02.542086024		10.02	8.60		7.948	G0	168	0
44	V* BG Lac	cC*	22 00 25.1466021504	+43 26 43.331629776		9.33	8.59		7.793	G0.7	150	0
45	V* Y Lac	cC*	22 09 02.9002579560	+51 02 45.084186096		9.79	9.13		8.292	F8	173	0
46	* del Cep	cC*	22 29 10.2626640314	+58 24 54.697613650	4.71	4.35	3.75		3.219	F5Iab:+B7-8	723	0
47	V* Z Lac	cC*	22 40 52.1457028632	+56 49 46.083774432		9.71	8.57		7.164	F6Ib	226	0
48	V* X Lac	cC*	22 49 03.1807630560	+56 25 41.530963044		9.21	8.42			G5	170	0

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