The Lithium Depletion Boundary as a Clock and Thermometer

Details The Lithium Depletion Boundary as a Clock and Thermometer The Lithium Depletion Boundary as a Clock and Thermometer

2000-09-12

arxiv.org/abs/astro-ph/0009179v1

Astronomy and Astrophysics

Astrophysics

6 pages, to appear in - From Darkness to Light, ASP Conference Series, eds. T. Montmerle and Ph. Andre

Scientific paper

We take a critical look at the lithium depletion boundary (LDB) technique that has recently been used to derive the ages of open clusters. We identify the sources of experimental and systematic error and show that the probable errors are larger by approximately a factor two than presently claimed in the literature. We then use the Pleiades LDB age and photometry in combination with evolutionary models to define empirical colour-T_eff relations that can be applied to younger clusters. We find that these relationships DO NOT produce model isochrones that match the younger cluster data. We propose that this is due either to systematic problems in the evolutionary models or an age (gravity) sensitivity in the colour-T_eff relation which is not present in published atmospheric models.

Affiliated with

Also associated with

No associations

Rating

The Lithium Depletion Boundary as a Clock and Thermometer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Lithium Depletion Boundary as a Clock and Thermometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Lithium Depletion Boundary as a Clock and Thermometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-549212