Purple dwarfs: New L subdwarfs from UKIDSS and SDSS

Z. H. Zhang, D.J. Pinfield, B. Burningham, H.R.A. Jones, A. C. Day-Jones, F. Marocco, J. Gomes, M. C. Galvez-Ortiz

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)
70 Downloads (Pure)


The first L subdwarf was a discovered only ten years ago. Less than ten L subdwarfs been published in the literature to date. Metal-poor ultracool atmospheres has not been well understood. Halo mass function cross substellar limit has not been measured. We used UKIDSS and SDSS to search for L subdwarfs. We have confirmed some new L subdwarfs and are following up more candidates with ground based large telescopes. We discussed spectral features of L subdwarfs and halo brown dwarfs.

Original languageEnglish
Title of host publicationHot Planets and Cool Stars
EditorsR. Saglia
PublisherEDP Sciences
Number of pages4
Publication statusPublished - 2013
EventConference on Hot Planets and Cool Stars - Garching, Germany
Duration: 12 Nov 201216 Nov 2012

Publication series

NameEPJ Web of Conferences
ISSN (Print)2100-014X


ConferenceConference on Hot Planets and Cool Stars


Dive into the research topics of 'Purple dwarfs: New L subdwarfs from UKIDSS and SDSS'. Together they form a unique fingerprint.

Cite this