Measuring ultracool properties from the UKIDSS Large Area Survey

Avril Day-Jones; Federico Marocco; David Pinfield; Zenghua Zhang; Ben Burningham; Nial Deacon; Maria-Teresa Ruiz; Jose Gallardo; Hugh Jones; Phil Lucas; James Jenkins; Joana Gomes; Stuart Folkes; James Clarke

doi:10.1051/epjconf/20134706003

Proceedings

Open Access

EPJ Web of Conferences 47, 06003 (2013)
https://doi.org/10.1051/epjconf/20134706003

Measuring ultracool properties from the UKIDSS Large Area Survey

Avril Day-Jones¹^,2^a, Federico Marocco², David Pinfield², Zenghua Zhang², Ben Burningham², Nial Deacon³, Maria-Teresa Ruiz¹, Jose Gallardo⁴, Hugh Jones², Phil Lucas², James Jenkins¹, Joana Gomes², Stuart Folkes⁵^,2 and James Clarke⁵^,2

¹ Departamento de Astronomia, Universidad de Chile, Camino el Observatorio 1515, Santiago, Chile
² Centre for Astrophysics Research, University of Hertfordshire, College Lane, Hatfield, Hertfordshire, UK
³ Max Planck Institute for Astronomy, Knigstuhl, 17. 69117 Heidelberg, Germany
⁴ ALMA, Also de Cordova 3107, Vitacura, Santiago, Chile
⁵ Departamento de Fiscica y Astronomia, Facultad de Ciencias, Universidad de Valparaiso, Av. Gran Bretana 1111, Valparaiso, Chile

^a e-mail: adjones@das.uchile.cl

Abstract

We discuss the properties and of ultracool and brown dwarfs that can be measured from current large area surveys and how fundamental parameters, such as the mass function and formation history can be measured, describing our own first measurement of the formation history in the sub-stellar regime using data from the UKIDSS Large Area Survey.

© Owned by the authors, published by EDP Sciences, 2013

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