Instabilities Galaxies Seyfert Stars late-type Planet-disk interactions Techniques radial velocities Techniques polarimetric Planetary systems Exoplanets Stars evolution Planet formation Galaxies active X-rays galaxies Planets and satellites gaseous planets Astrophysics - Instrumentation and Methods for Astrophysics Instrumentation high angular resolution Astrometry Methods data analysis Extinction Interstellar medium Radiation mechanisms non-thermal Scattering Astrophysics - Solar and Stellar Astrophysics Infrared stars Binaries visual ISM structure Turbulence Acceleration of particles Planets and satellites detection Protoplanetary discs Infrared planetary systems Astrophysics - High Energy Astrophysical Phenomena Submillimeter planetary systems Magnetohydrodynamics MHD Stars winds Techniques high angular resolution Stars massive Stars activity Spectroscopy Outflows Herbig Ae/Be Methods observational Stars imaging Stars protostars Dust Accretion disks Astrophysics Stars formation Black hole physics HESS Planets and satellites dynamical evolution and stability Comets Binaries general ISM jets and outflows Stars solar-type Brown dwarfs Gamma rays general Pulsars general ISM molecules Radiative transfer ISM clouds Techniques interferometric Pluto Molecular processes Surveys Stars pre-main sequence Radio lines ISM X-rays binaries Submillimeter ISM Gamma ray VHE Polarization Stars fundamental parameters Protoplanetary disks Stars variables T Tauri Accretion Binaries close Techniques photometric Astrophysics - Astrophysics of Galaxies Astrophysics - Earth and Planetary Astrophysics Hydrodynamics Stars low-mass Planets and satellites atmospheres Mars Star formation Planets and satellites formation Molecular physics Techniques image processing Accretion discs Methods statistical Stars early-type Instrumentation adaptive optics Stars magnetic field ISM abundances Polarimetry Techniques spectroscopic Circumstellar matter Astrochemistry Methods numerical Molecular data Stars rotation