Pre-main-sequence isochrones - II. Revising star and planet formation time-scales

Bell, CPM
Naylor, T
Mayne, NJ
Jeffries, RD
Littlefair, SP

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Publication date

June 2016

DOI

10.1093/mnras/stt1075

Publisher

Oxford University Press (OUP)

Journal

Monthly Notices of the Royal Astronomical Society

Abstract

archiveprefix: arXiv primaryclass: astro-ph.SR keywords: techniques: photometric, stars: evolution, stars: formation, stars: fundamental parameters, Hertzsprung-Russell and colour-magnitude diagrams, stars: pre-main-sequence adsurl: http://adsabs.harvard.edu/abs/2013MNRAS.434..806B adsnote: Provided by the SAO/NASA Astrophysics Data SystemWe have derived ages for 13 young (<30 Myr) star-forming regions and find that they are up to a factor of 2 older than the ages typically adopted in the literature. This result has wide-ranging implications, including that circumstellar discs survive longer (≃ 10–12 Myr) and that the average Class I lifetime is greater (≃1 Myr) than currently believed. For each star-forming region, we derived two ages from...