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A submillimeter search for pre- and proto-brown dwarfs in Chamaeleon II
I. de Gregorio-Monsalvo, D. Barrado, H. Bouy +7
Context. Chamaeleon II molecular cloud is an active star forming region that offers an excellent opportunity for studying the formation of brown dwarfs in the southern hemisphere.…
HII 2407: A Low-Mass Eclipsing Binary Revealed by K2 Observations of the Pleiades
Trevor J. David, John Stauffer, Lynne A. Hillenbrand +16
The star HII 2407 is a member of the relatively young Pleiades star cluster and was previously discovered to be a single-lined spectroscopic binary. It is newly identified here wit…
Photo-dynamical mass determination of the multi-planetary system K2-19
S. C. C. Barros, J. M. Almenara, O. Demangeon +32
K2-19 is the second multi-planetary system discovered with K2 observations. The system is composed of two Neptune size planets close to the 3:2 mean-motion resonance. To better cha…
Search for associations containing young stars (SACY). VI. Is multiplicity universal? Stellar multiplicity in the range 3-1000 au from adaptive-optics observations
P. Elliott, N. Huelamo, H. Bouy +7
Context. Young loose nearby associations are unique samples of close (<150 pc), young (approx 5-100 Myr) pre-main sequence (PMS) stars. A significant number of members of these ass…
First detection of thermal radio jets in a sample of proto-brown dwarf candidates
O. Morata, A. Palau, R. F. González +10
We observed with the JVLA at 3.6 and 1.3 cm a sample of 11 proto-brown dwarf candidates in Taurus in a search for thermal radio jets driven by the most embedded brown dwarfs. We de…
Spectro-astrometry of LkCa 15 with X-Shooter: Searching for emission from LkCa 15b
E. T. Whelan, N. Huelamo, J. M. Alcala +5
Planet formation is one explanation for the partial clearing of dust observed in the disks of some T Tauri stars. Indeed studies using state-of-the-art high angular resolution tech…