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A deep IZ survey of 1.1 deg^2 of the Pleiades cluster: three candidate members with M < 0.04 M⊙


Dobbie, PD and Kenyon, F and Jameson, RF and Hodgkin, ST and Pinfield, DJ and Osborne, SL, A deep IZ survey of 1.1 deg^2 of the Pleiades cluster: three candidate members with M < 0.04 M⊙, Monthly Notices of the Royal Astronomical Society, 335, (3) pp. 687-697. ISSN 0035-8711 (2002) [Refereed Article]

Copyright Statement

Copyright 2002 RAS

DOI: doi:10.1046/j.1365-8711.2002.05650.x


The results of an I- and Z-band survey and infrared follow-up of 1.1 deg2 of the Pleiades open cluster complete to I ≈ 21.4 (Ic ∼ 22) are presented. A total of 23 candidate cluster members has been unearthed, 15 of which are previously unpublished. Assuming canonical cluster age and distance, and using the latest theoretical models, we determine that the cluster mass function continues to rise down to a mass of 0.03 M⊙, following a power law with α = 0.8. By considering several potential sources of uncertainty we show that this result is robust and we compare it with the results from other work on young clusters.

Item Details

Item Type:Refereed Article
Keywords:stars: low-mass, brown dwarfs; open clusters and associations: individual: Pleiades
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Stellar astronomy and planetary systems
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Dobbie, PD (Dr Paul Dobbie)
ID Code:81178
Year Published:2002
Web of Science® Times Cited:31
Deposited By:Mathematics and Physics
Deposited On:2012-11-26
Last Modified:2013-06-27

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