2002A&A...390..109R

Query : 2002A&A...390..109R

2002A&A...390..109R - Astronomy and Astrophysics, volume 390, 109-119 (2002/7-4)

Rotation of stars in NGC 6134. A comparison of δ Scuti stars and non-variable stars.

RASMUSSEN M.B., BRUNTT H., FRANDSEN S., PAUNZEN E. and MAITZEN H.M.

Abstract (from CDS):

We present results of spectroscopic observations of selected stars in the southern open cluster NGC 6134. We have determined the rotational velocities of the six known δ Scuti stars in NGC 6134 as well as several other non-variable stars with similar colour temperature in order to investigate if vsin i and variability is somehow connected: we find no such correlation. We also compare the distribution of vsin i of δ Scuti stars and non-variable stars with four other well-studied open clusters to look for any systematic behaviour, but we find no conclusive evidence for vsini and variability to be connected. We have also used the spectra to carry out an abundance analysis of the δ Scuti stars in NGC 6134 to confirm the high metal content of the cluster. We find [Fe/H]=+0.38±0.05 which is in agreement with the result obtained from Stroemgren photometry. We also present Δa photometry of the cluster, but we find no chemical peculiar stars based on this index.

Abstract Copyright: ∼

Journal keyword(s): stars: oscillations - stars: variable: δ Scuti - stars: rotation - open clusters and associations: individual: NGC 6134, NGC 3680

Simbad objects: 31

Full paper

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Number of rows : 31

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2023	#notes
1	Cl Melotte 20	OpC	03 26 28.1	+48 58 30					~	846	0
2	Cl Melotte 22	OpC	03 46 24.2	+24 06 50					~	3362	0
3	HD 24450	PM*	03 46 36.8888741592	-74 30 28.625359608		8.38	8.03		F3V	38	0
4	Cl Melotte 25	OpC	04 29 47.3	+16 56 53					~	2999	0
5	HD 49434	gD*	06 48 19.0662941232	-01 19 08.124232296		6.015	5.731		F0V+	90	0
6	NGC 2632	OpC	08 40 13.0	+19 37 16					~	1509	0
7	IC 2602	OpC	10 42 27.1	-64 25 34					~	657	0
8	NGC 3680	OpC	11 25 34.1	-43 14 24		8.40	7.6		~	314	0
9	HD 118646	PM*	13 38 42.0709958256	-29 33 39.123093744		6.221	5.810		F3V	67	0
10	HD 132475	PM*	14 59 49.7651173448	-22 00 45.815162806	8.98	9.11	8.55		F5/6V	238	1
11	NGC 6134 61	*	16 27 37.6305165144	-49 10 08.042336688			12.99		~	6	0
12	V* V385 Nor	BS*	16 27 37.8020562672	-49 10 42.335920128		12.10	11.70		~	12	0
13	NGC 6134 66	*	16 27 39.9221666091	-49 09 41.321027109			13.26	13.062	~	2	0
14	V* V355 Nor	dS*	16 27 39.9222835080	-49 09 41.321051604		13.49	12.83	13.06	~	8	0
15	V* V386 Nor	dS*	16 27 40.0147707000	-49 10 24.899985876		14.233	13.52		~	9	0
16	NGC 6134 4	*	16 27 42.2324147736	-49 09 07.313512824			13.33		~	6	0
17	NGC 6134 106	*	16 27 42.7185712608	-49 11 28.243562640			12.40		~	7	0
18	V* V387 Nor	dS*	16 27 43.0867803864	-49 07 23.560900752		14.260	13.57		~	9	0
19	NGC 6134 3	**	16 27 43.69848	-49 09 08.5896		12.559	11.809	11.904	~	1	0
20	NGC 6134 9	*	16 27 43.8587022936	-49 09 32.071700412			13.12		~	6	0
21	NGC 6134	OpC	16 27 48.7	-49 09 40		7.89	7.2		~	147	0
22	V* V356 Nor	dS*	16 27 48.7379106768	-49 10 43.206618684		13.009			~	10	0
23	V* V388 Nor	dS*	16 27 49.1301182352	-49 06 43.076356668		13.121	12.43		~	9	0
24	NGC 6134 21	*	16 27 49.2484491432	-49 08 33.567725940			14.45		~	6	0
25	V* V357 Nor	dS*	16 27 51.4969567032	-49 09 20.191618044		12.56	11.71		~	7	0
26	NGC 6134 50	*	16 27 55.1908966608	-49 10 25.649330844				12.575	~	7	1
27	NGC 6134 41	*	16 27 55.9123828320	-49 08 56.085029880			12.63		~	6	0
28	NGC 6134 93	*	16 28 00.6881648448	-49 09 18.875757240			14.895		~	5	0
29	NGC 6134 96	*	16 28 00.9745209576	-49 10 43.361620356			13.401		~	5	0
30	NGC 6134 95	*	16 28 02.0551330488	-49 09 48.535121376			14.040		~	5	0
31	HD 155458	*	17 11 48.4470258000	-03 20 54.549500964		8.84	8.19		F0V	15	0

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