219 citations · 1.4k across the 19 of their papers we have counts for
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Lucky Imaging survey for southern M dwarf binaries
C. Bergfors, W. Brandner, M. Janson +7
While M dwarfs are the most abundant stars in the Milky Way, there is still large uncertainty about their basic physical properties (mass, luminosity, radius, etc.) as well as thei…
Discovery of a stellar companion to the nearby solar-analogue HD 104304
Carolin Schnupp, Carolina Bergfors, Wolfgang Brandner +6
Sun-like stars are promising candidates to host exoplanets and are often included in exoplanet surveys by radial velocity (RV) and direct imaging. In this paper we report on the de…
Search for Outer Massive Bodies around Transiting Planetary Systems: Candidates of Faint Stellar Companions around HAT-P-7
Norio Narita, Tomoyuki Kudo, Carolina Bergfors +46
We present results of direct imaging observations for HAT-P-7 taken with the Subaru HiCIAO and the Calar Alto AstraLux. Since the close-in transiting planet HAT-P-7b was reported t…
Spatially resolved spectroscopy of the exoplanet HR 8799 c
M. Janson, C. Bergfors, M. Goto +2
HR 8799 is a multi-planet system detected in direct imaging, with three companions known so far. Here, we present spatially resolved VLT/NACO 3.88--4.10 micron spectroscopy of the…