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

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

2002A&A...390..109R - Astronomy and Astrophysics, volume 390109-119 (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: 30

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Number of rows : 30
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 Cl Melotte 20 MGr 03 26 50.6 +48 51 48           ~ 928 0
2 HD 24450 PM* 03 46 36.8888741592 -74 30 28.625359608   8.38 8.03     F3V 42 0
3 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
4 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
5 HD 49434 gD* 06 48 19.0662941232 -01 19 08.124232296   6.015 5.731     F0V+ 98 0
6 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
7 IC 2602 OpC 10 42 55.9 -64 25 22           ~ 735 0
8 NGC 3680 OpC 11 25 19.8 -43 14 38   8.40 7.6     ~ 340 0
9 HD 118646 PM* 13 38 42.0709958256 -29 33 39.123093744   6.221 5.810     F3V 75 0
10 HD 132475 PM* 14 59 49.7651173448 -22 00 45.815162806 8.98 9.11 8.55     F5/6V 256 1
11 NGC 6134 61 * 16 27 37.6305165144 -49 10 08.042336688     12.99     ~ 8 0
12 CPD-48 8477 BS* 16 27 37.8020562672 -49 10 42.335920128   12.10 11.70     ~ 16 0
13 V* V355 Nor dS* 16 27 39.9222835080 -49 09 41.321051604   13.49 12.83 13.06   ~ 12 0
14 V* V386 Nor dS* 16 27 40.0147707000 -49 10 24.899985876   14.233 13.52     ~ 12 0
15 NGC 6134 4 * 16 27 42.2324147736 -49 09 07.313512824     13.33     ~ 8 0
16 NGC 6134 106 * 16 27 42.7185712608 -49 11 28.243562640     12.40     ~ 9 0
17 V* V387 Nor dS* 16 27 43.0867803864 -49 07 23.560900752   14.260 13.57     ~ 12 0
18 NGC 6134 3 ** 16 27 43.69848 -49 09 08.5896   12.559 11.809 11.904   ~ 1 0
19 NGC 6134 9 * 16 27 43.8587022936 -49 09 32.071700412     13.12     ~ 8 0
20 NGC 6134 OpC 16 27 48.5 -49 09 40   7.89 7.2     ~ 166 0
21 V* V356 Nor dS* 16 27 48.7379106768 -49 10 43.206618684   13.009       ~ 13 0
22 V* V388 Nor dS* 16 27 49.1301182352 -49 06 43.076356668   13.121 12.43     ~ 12 0
23 NGC 6134 21 * 16 27 49.2484491432 -49 08 33.567725940     14.45     ~ 8 0
24 V* V357 Nor dS* 16 27 51.4969567032 -49 09 20.191618044   12.56 11.71     ~ 8 0
25 NGC 6134 50 * 16 27 55.1908966608 -49 10 25.649330844       12.575   ~ 9 1
26 NGC 6134 41 * 16 27 55.9123828320 -49 08 56.085029880     12.63     ~ 9 0
27 NGC 6134 93 * 16 28 00.6881648448 -49 09 18.875757240     14.895     ~ 7 0
28 NGC 6134 96 * 16 28 00.9745209576 -49 10 43.361620356     13.401     ~ 7 0
29 NGC 6134 95 * 16 28 02.0551330488 -49 09 48.535121376     14.040     ~ 7 0
30 HD 155458 * 17 11 48.4470258000 -03 20 54.549500964   8.84 8.19     F0V 17 0

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