activity
20002016
most citedVariability in ultra cool dwarfs: evidence for the evolution of surface features

166 citations · 687 across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.SR2016

Spectroscopic characterisation of CARMENES target candidates from FEROS, CAFE and HRS high-resolution spectra

V. M. Passegger, A. Reiners, S. V. Jeffers +9

CARMENES (Calar Alto high-Resolution search for M dwarfs with Exoearths with Near-infrared and optical Echelle Spectrographs) started a new planet survey on M-dwarfs in January thi…

astro-ph.SR2013★ 7 cited

The spectral type of CHS7797 - an intriguing very low mass periodic variable in the Orion Nebula Cluster

M. V. Rodriguez-Ledesma, R. Mundt, O. Pintado +3

We present the spectroscopic characterization of the unusual high-amplitude very low mass pre-main-sequence periodic variable CHS7797. This study is based on optical medium-resolut…

astro-ph.SR2011★ 43 cited

The substellar population of Sigma Orionis: A deep wide survey

V. J. S. Béjar, M. R. Zapatero Osorio, R. Rebolo +5

We present a deep I,Z photometric survey covering a total area of 1.12 deg^{2} of the Sigma Orionis cluster (Icompl=22 and Zcompl=21.5mag). From I, I-Z color-magnitude diagrams we…

astro-ph.SR2009★ 1 cited

CARMENES: Calar Alto high-Resolution search for M dwarfs with Exo-earths with a Near-infrared Echelle Spectrograph

A. Quirrenbach, P. J. Amado, H. Mandel +55

CARMENES, Calar Alto high-Resolution search for M dwarfs with Exo-earths with a Near-infrared Echelle Spectrograph, is a study for a next-generation instrument for the 3.5m Calar A…

astro-ph2007★ 115 cited

Pre-main sequence spectroscopic binaries suitable for VLTI observations

E. W. Guenther, M. Esposito, R. Mundt +4

A severe problem of the research in star-formation is that the masses of young stars are almost always estimated only from evolutionary tracks. Since the tracks published by differ…

astro-ph2005★ 30 cited

The very low-mass population of the Corona Australis and Chamaeleon II star forming regions

Belén López Martí, Jochen Eislöffel, Reinhard Mundt

We present the results of a deep optical survey in the Corona Australis and Chamaeleon II star forming regions. Our optical photometry is combined with available near- and mid-infr…