Context: Brown dwarf companions to stars at separations of a few AU or less are rare objects, and none have been found so far around early-type M dwarfs (M 0V-M 5V). With GJ 1046 (M 2.5V), a strong candidate for such a system with a separation of 0.42 AU is presented. Aims: We aim at constraining the mass of the companion in order to decide whether it is a brown dwarf or a low-mass star. Methods: We employed precision RV measurements to determine the orbital parameters and the minimum companion mass. We then derived an upper limit to the companion mass from the lack of disturbances of the RV measurements by a secondary spectrum. An even tighter upper limit is subsequently established by combining the RV-derived orbital parameters with the r...
From radial velocity (RV) detections alone one does not get all orbital parameters needed to derive ...
We have completed a search for low luminosity companions, including high mass brown dwarfs, to all M...
International audienceContext. Brown dwarfs (BD) are substellar objects intermediate between planets...
Context. Brown dwarf companions to stars at separations of a few AU or less are rare objects, and n...
Context. Brown dwarf companions to stars at separations of a few AU or less are rare objects, and no...
Brown dwarfs are star-like objects with masses less than 0.08 times that of the Sun, which are unabl...
From radial velocity (RV) detections alone one does not get all orbital parameters needed to derive ...
Brown dwarfs and low-mass stellar companions are interesting objects to study since they occupy the ...
International audienceWe report the discovery of a bright, brown dwarf companion to the star HIP 648...
From radial velocity (RV) detections alone one does not get all orbital parameters needed to derive ...
We have completed a search for low luminosity companions, including high mass brown dwarfs, to all M...
International audienceContext. Brown dwarfs (BD) are substellar objects intermediate between planets...
Context. Brown dwarf companions to stars at separations of a few AU or less are rare objects, and n...
Context. Brown dwarf companions to stars at separations of a few AU or less are rare objects, and no...
Brown dwarfs are star-like objects with masses less than 0.08 times that of the Sun, which are unabl...
From radial velocity (RV) detections alone one does not get all orbital parameters needed to derive ...
Brown dwarfs and low-mass stellar companions are interesting objects to study since they occupy the ...
International audienceWe report the discovery of a bright, brown dwarf companion to the star HIP 648...
From radial velocity (RV) detections alone one does not get all orbital parameters needed to derive ...
We have completed a search for low luminosity companions, including high mass brown dwarfs, to all M...
International audienceContext. Brown dwarfs (BD) are substellar objects intermediate between planets...