2000A&A...358L..49D


Query : 2000A&A...358L..49D

2000A&A...358L..49D - Astronomy and Astrophysics, volume 358, L49-52 (2000/6-2)

Episodic lithium production by extra-mixing in red giants.

DENISSENKOV P.A. and WEISS A.

Abstract (from CDS):

The recent discovery of low-mass red giants with enhanced atmospherical Li abundance in galactic low-metallicity stellar clusters adds to the mysterious phenomenon of the Li-rich giants. We propose a combined scenario for the Li-enrichment: engulfing a giant planet (or brown dwarf) by a red giant (external source) activates inside the giant the ``7Be-mechanism'' producing Li internally. This episodical Li-production can happen at any time on the red giant branch and is naturally followed by Li-depletion as is observed. Limitations of our scenario are discussed as well.

Abstract Copyright:

Journal keyword(s): stars: chemically peculiar - stars: evolution - stars: interiors - stars: late-type - stars: rotation

Simbad objects: 9

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Number of rows : 9
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NGC 362 GlC 01 03 14.26 -70 50 55.6     6.58     ~ 1012 0
2 Cl Berkeley 21 245 * 05 51 34.4803217856 +21 48 29.280682548   18.878 17.55     ~ 12 0
3 Cl Berkeley 21 OpC 05 51 43 +21 48.7   12.26 11.1     ~ 100 0
4 2MASS J13415502+2819149 RG* 13 41 55.0321396248 +28 19 14.930940144   14.53 13.18     ~ 53 0
5 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2374 0
6 Cl* NGC 5904 SAW V42 cC* 15 18 24.7809796920 +02 02 53.243386584   12.8100 10.9300     F4 42 1
7 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2099 0
8 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 1997 0
9 M 15 GlC 21 29 58.33 +12 10 01.2   3       ~ 3021 0

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2022.05.23-23:13:15

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