2004A&A...415..677C

Query : 2004A&A...415..677C

2004A&A...415..677C - Astronomy and Astrophysics, volume 415677-684 (2004/2-4)

Li abundance/surface activity connections in solar-type Pleiades.

CLARKE D., MacDONALD E.C. and OWENS S.

Abstract (from CDS):

The relation between the lithium abundance, A_ Li_, and photospheric activity of solar-type Pleiads is investigated for the first time via acquisition and analysis of B and V-band data. Predictions of activity levels of target stars were made according to the ALi/(B-V) relation and then compared with new CCD photometric measurements. Six sources behaved according to the predictions while one star (HII 676), with low predicted activity, exhibited the largest variability of the study; another star (HII 3197), with high predicted activity, was surprisingly quiet. Two stars displayed non-periodic fadings, this being symptomatic of orbiting disk-like structures with irregular density distributions. Although the observation windows were not ideal for rotational period detection, some periodograms provided possible values; the light-curve obtained for HII 1532 is consistent with that previously recorded.

Abstract Copyright: ∼

Journal keyword(s): stars: solar-type - stars: rotation

Nomenclature: Table 1: Cl* Melotte 22 CMO N (Nos 1-7).

Simbad objects: 50

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Number of rows : 50
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 22 219 * 03 43 57.3365692128 +24 30 37.280151648   14.7 14.30 14.18   ~ 3 0
2 Cl Melotte 22 225 * 03 43 58.4355565608 +24 14 41.417928600   14.14 13.51 13.39   ~ 1 0
3 Cl Melotte 22 257 * 03 44 03.2606779896 +24 07 54.553871676   14.57 13.67 13.41   ~ 5 0
4 V* V1272 Tau BY* 03 44 03.5401148521 +24 30 15.284314309   11.8 10.762   9.933 G1V 111 0
5 V* V1168 Tau BY* 03 44 04.8395264080 +24 16 31.874754111   12.42 11.54     G4 108 0
6 Cl Melotte 22 272 AB? 03 44 07.4677155432 +24 31 11.687385756   14.42 12.66 12.12   M0.0III 6 0
7 Cl Melotte 22 309 * 03 44 16.4946147912 +24 16 22.222710948   11.27 12.31     F6 9 0
8 Cl Melotte 22 322 SB* 03 44 19.4580290160 +24 15 38.929420440     12.18     F5 11 0
9 2MASS J03450326+2350219 Y*O 03 45 03.2767265409 +23 50 21.885896079   12.87 11.93   10.97 K2V 108 0
10 V* V811 Tau BY* 03 45 21.1862906887 +23 43 38.888404751 14.771 13.67 12.57   11.24 G5 102 0
11 V* OT Tau Y*O 03 45 29.5743998774 +23 45 37.820500394 15.973 14.611 13.385   11.891 ~ 92 0
12 V* V1041 Tau Y*O 03 45 39.4002482170 +23 45 15.469362585 14.355 13.52 12.41 11.99 10.83 G9V 75 0
13 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
14 Cl* Melotte 22 CMO 1 * 03 47 34.1 +23 45 06           ~ 1 0
15 Cl* Melotte 22 CMO 2 * 03 47 39.2 +22 56 43           ~ 1 0
16 V* V652 Tau Y*O 03 47 40.9847419392 +22 55 47.900799228   13.28 12.22   11.14 K3V 65 0
17 V* V541 Tau Er* 03 47 41.1816807055 +23 44 25.019888142   15.21 13.95   12.37 M1.8 88 0
18 Cl Melotte 22 1545 * 03 47 42.1 +23 41 15   16.2       ~ 3 0
19 Cl* Melotte 22 CMO 3 * 03 47 43.4 +22 57 07           ~ 1 0
20 Cl Melotte 22 1570 * 03 47 45.4912520400 +23 43 20.210043072   15.4       ~ 4 0
21 HD 282958 Y*O 03 48 17.6915716635 +25 02 52.259199818   11.6 11.3   10.15 G5V 109 0
22 Cl* Melotte 22 CMO 5 * 03 48 18.7 +25 12 35           ~ 1 0
23 Cl* Melotte 22 CMO 4 * 03 48 25.7 +25 12 35           ~ 1 0
24 Cl Melotte 22 1844 * 03 48 26.9079908520 +24 59 39.907582476   12.42 11.12     ~ 3 0
25 HD 282959 ** 03 48 34.6020409234 +25 04 00.785158430   11.538 11.170 11.101   A3 14 0
26 Cl Melotte 22 3167 * 03 51 55.5447231240 +24 42 32.574262464   14.46 14.12 14.35 13.58 ~ 1 0
27 V* V679 Tau TT* 03 52 02.2372961328 +24 39 47.681148816   13.57 11.41 11.89 10.77 K5e 140 0
28 Cl* Melotte 22 CMO 7 * 03 52 06.6 +24 38 42           ~ 1 0
29 Cl* Melotte 22 CMO 6 * 03 52 11.7 +24 38 13           ~ 1 0
30 V* UX Ori Ae* 05 04 29.9878898040 -03 47 14.286732072 10.25 10.93 8.70 9.62 9.43 A4IVe 379 1
31 Cl Melotte 22 1427 * ~ ~           ~ 1 0
32 Cl Melotte 22 217 * ~ ~           ~ 1 0
33 Cl Melotte 22 1582 * ~ ~   15.8       ~ 2 0
34 Cl Melotte 22 1575 * ~ ~   16.8       ~ 2 0
35 Cl Melotte 22 1493 * ~ ~   16.8       ~ 2 0
36 Cl Melotte 22 1478 * ~ ~   16.8       ~ 2 0
37 Cl Melotte 22 1457 * ~ ~   16.3       ~ 2 0
38 Cl Melotte 22 711 * ~ ~   16.7       ~ 2 0
39 Cl Melotte 22 3198 * ~ ~           ~ 1 0
40 Cl Melotte 22 616 * ~ ~   16.2       ~ 2 0
41 Cl Melotte 22 598 * ~ ~   17.0       ~ 2 0
42 Cl Melotte 22 282 * ~ ~   16.6       ~ 2 0
43 Cl Melotte 22 223 * ~ ~   16.7       ~ 2 0
44 Cl Melotte 22 203 * ~ ~   15.8       ~ 2 0
45 Cl Melotte 22 228 * ~ ~   12.57       ~ 2 0
46 Cl Melotte 22 575 * ~ ~           ~ 2 0
47 Cl Melotte 22 655 * ~ ~   16.6       ~ 2 0
48 Cl Melotte 22 1554 * ~ ~           ~ 1 0
49 Cl Melotte 22 1508 * ~ ~           ~ 1 0
50 Cl Melotte 22 1534 * ~ ~           ~ 1 0

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