2002AJ....124.2799W

Query : 2002AJ....124.2799W

2002AJ....124.2799W - Astron. J., 124, 2799-2812 (2002/November-0)

Evolution of the lithium abundance of solar-type stars. X. Does accretion affect the lithium dispersion in the Pleiades.

WILDEN B.S., JONES B.F., LIN D.N.C. and SODERBLOM D.R.

Abstract (from CDS):

Sixteen G and K dwarfs in the Pleiades cluster were analyzed for evidence that accretion of hydrogen-depleted planetesimals has contributed to the lithium dispersion observed in cluster stars of similar effective temperature. The HiRes spectrograph on the Keck 10 m telescope was used to obtain spectra of slowly rotating Pleiades stars having similar effective temperatures but different lithium abundances. The high-resolution echelle spectra were analyzed for a possible dispersion in the metal abundances correlated with the observed dispersion in lithium abundance. The existence of such a correlation would support the possibility that young stars can replenish their surface lithium by accreting hydrogen-depleted material from a circumstellar disk. The narrow dispersion in the metal abundances of the observed stars makes it unlikely that accretion plays a role in the dispersion in lithium abundances.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: Open Clusters and Associations: Individual: Name: Pleiades - Stars: Planetary Systems: Formation - Stars: Planetary Systems: Protoplanetary Disks - Stars: Abundances

Simbad objects: 26

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Number of rows : 26
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 NGC 1039 OpC 02 42 09.1 +42 44 02           ~ 467 0
2 2MASS J03433440+2345429 Y*O 03 43 34.4113941165 +23 45 42.922748924 12.914 12.35 11.47     G8V 70 0
3 V* V963 Tau BY* 03 43 37.7294586035 +23 32 09.560933897 11.82 11.4 10.6     G5V 95 0
4 Cl Melotte 22 250 Y*O 03 44 04.2464661604 +24 59 23.415055928   11.4 10.7     G2 74 0
5 V* V966 Tau BY* 03 44 11.2145003449 +23 22 45.575870257   12.30 11.46     G8e 140 0
6 V* V1169 Tau BY* 03 44 13.9194344229 +24 46 45.826637312   11.50 10.80     G0 112 0
7 V* V1084 Tau RS* 03 44 20.5097544453 +24 46 22.305261833   11.92 11.04 10.7   G5V 92 0
8 2MASS J03450326+2350219 Y*O 03 45 03.2767265409 +23 50 21.885896079   12.87 11.93   10.97 K2V 108 0
9 V* V969 Tau BY* 03 45 42.1185203606 +24 54 21.622880032   10.18 9.56   8.82 G3 145 1
10 V* V641 Tau Y*O 03 46 27.7743108351 +23 35 33.771415161 15.602 14.28 13.05   11.52 G9 121 0
11 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
12 2MASS J03470678+2342546 Y*O 03 47 06.7798576255 +23 42 54.539225274 14.346 13.20 12.18   11.25 K3V 98 0
13 Cl Melotte 22 2106 Y*O 03 48 58.4864992200 +23 12 04.243870368   12.39 11.53   10.59 K0V 61 0
14 HD 282960 ** 03 49 25.704576 +24 56 15.44820   11.743 10.887 10.639 10.00 G2 56 0
15 V* V1090 Tau BY* 03 49 33.1190204321 +23 47 43.404601495   11.58 10.87   10.19 G4V 95 0
16 Cl Melotte 22 2462 Y*O 03 49 50.3589700206 +23 42 20.103084756   12.45 11.61 11.44 10.63 ~ 107 0
17 Cl Melotte 22 2644 Y*O 03 50 20.9059818720 +24 28 00.290041788   11.76 11.03   10.32 ~ 78 0
18 V* V1176 Tau Er* 03 50 54.3588780269 +23 50 05.237700840   12.43 11.48 10.99 10.47 K2 77 0
19 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
20 * bet Pic PM* 05 47 17.0876901 -51 03 59.441135 4.13 4.03 3.86 3.74 3.58 A6V 2087 1
21 NGC 2264 OpC 06 40 53.7 +09 52 32           ~ 1876 0
22 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
23 NGC 2682 OpC 08 51 23.5 +11 48 54           ~ 2528 0
24 NAME Ursa Major Moving Group MGr 12 32 +57.0           ~ 467 1
25 * 16 Cyg A ** 19 41 48.9534996168 +50 31 30.219536784 6.79 6.59 5.95 5.50 5.17 G1.5Vb 814 0
26 * 16 Cyg B PM* 19 41 51.9726777456 +50 31 03.089030916 7.07 6.86 6.20 5.76 5.42 G3V 949 1

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