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