The Substellar Luminosity and Mass Functions of the Trapezium Cluster Down to the Deuterium Burning Limit

August A. Muench, Elizabeth A. Lada, Charles J. Lada, João F. Alves

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Abstract

We have employed an advanced suite of Monte Carlo calculations to model the infrared luminosity function (KLF) of the Trapezium cluster and to derive its Sub-stellar Initial Mass Function down to the deuterium burning limit. Independent of the details, we find that substellar objects can account for no more than ˜22% of the total number of likely cluster members. This cluster's substellar IMF steadily declines in a power-law fashion over most of the brown dwarf regime, however the formation of a secondary peak in the cluster's substellar KLF suggests the existence of a corresponding secondary peak in the substellar IMF between 10 and 30 times the mass of Jupiter based upon the seemingly degenerate behavior of the theoretical substellar mass-luminosity relation.%
Original languageEnglish
Title of host publicationBrown Dwarfs, Proceedings of IAU Symposium, held 20-24 May 2002 at University of Hawaii, Honolulu, Hawaii
EditorsEduardo Martín
Place of PublicationSan Francisco
PublisherAstronomical Society of the Pacific
Pages67
Volume211
Publication statusPublished - 1 Jun 2003

Austrian Fields of Science 2012

  • 103004 Astrophysics

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