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Low-mass and sub-stellar eclipsing binaries in stellar clusters
Nicolas Lodieu, Ernst Paunzen, Miloslav Zejda
We highlight the importance of eclipsing double-line binaries in our understanding on star formation and evolution. We review the recent discoveries of low-mass and sub-stellar ecl…
Strong H emission in the young planetary mass companion 2MASS J0249-0557 c
P. Chinchilla, V. J. S. Béjar, N. Lodieu +2
Aims: Our objective is the optical and near-infrared spectroscopic characterisation of 2MASS J0249-0557 c, a recently discovered young planetary mass companion to the Pictoris…
Ultracool Dwarfs in deep extragalactic surveys using the Virtual Observatory: ALHAMBRA and COSMOS
E. Solano, M. C. Gálvez-Ortiz, E. L. Martín +8
Ultracool dwarfs encompass a wide variety of compact stellar-like objects with spectra classified as late-M, L, T and Y. Most of them have been discovered using wide-field imaging…
Two close binaries across the hydrogen-burning limit in the Praesepe open cluster
N. Lodieu, C. del Burgo, E. Manjavacas +7
We present Keck I/OSIRIS and Keck II/NIRC2 adaptive optics imaging of two member candidates of the Praesepe stellar cluster (d=186.180.11 pc; 590-790 Myr), UGC J08451066+21481…
Confirming new white dwarf-ultracool dwarf binary candidates
Miriam Hogg, Sarah Casewell, Graham Wynn +8
We present the results of a study to discover prospective new white dwarf-L dwarf binaries as identified by their near-infrared excesses in the UKIDSS catalogue. We obtained optica…
White Paper on MAAT@GTC
Francisco Prada, Robert Content, Ariel Goobar +41
MAAT is proposed as a visitor mirror-slicer optical system that will allow the OSIRIS spectrograph on the 10.4-m Gran telescopio CANARIAS (GTC) the capability to perform Integral F…