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GRAVITY: beam stabilization and light injection subsystems
O. Pfuhl, M. Haug, F. Eisenhauer +9
We present design results of the 2nd generation VLTI instrument GRAVITY beam stabilization and light injection subsystems. Designed to deliver micro-arcsecond astrometry, GRAVITY r…
The Arches cluster out to its tidal radius: dynamical mass segregation and the effect of the extinction law on the stellar mass function
Maryam Habibi, Andrea Stolte, Wolfgang Brandner +2
The Galactic center is the most active site of star formation in the Milky Way Galaxy, where particularly high-mass stars have formed very recently and are still forming today. How…
Direct Imaging Discovery of a `Super-Jupiter' Around the late B-Type Star Kappa And
J. Carson, C. Thalmann, M. Janson +52
We present the direct imaging discovery of an extrasolar planet, or possible low-mass brown dwarf, at a projected separation of 55 +/- 2 AU (1.058 +/- 0.007 arcsec) from the B9-typ…
The Structure of Pre-transitional Protoplanetary Disks I: Radiative Transfer Modeling of the Disk+Cavity in the PDS 70 system
Ruobing Dong, Jun Hashimoto, Roman Rafikov +49
Through detailed radiative transfer modeling, we present a disk+cavity model to simultaneously explain both the SED and Subaru H-band polarized light imaging for the pre-transition…
A Common Proper Motion Stellar Companion to HAT-P-7
Norio Narita, Yasuhiro H. Takahashi, Masayuki Kuzuhara +51
We report that HAT-P-7 has a common proper motion stellar companion. The companion is located at arcsec to the east and estimated as an M5.5V dwarf based on its colors. W…
Stellar companions to exoplanet host stars: Lucky Imaging of transiting planet hosts
Carolina Bergfors, Wolfgang Brandner, Sebastian Daemgen +7
Observed properties of stars and planets in binary/multiple star systems provide clues to planet formation and evolution. We extended our survey for visual stellar companions to th…