Gravitational waves BL Lacertae objects general Large-scale structure of Universe Astrophysics - High Energy Astrophysical Phenomena Astrochemistry Neutron stars General relativity Cosmology Black hole Astroparticle physics ISM abundances VHE Orbit Relativistic processes Galaxy Supernova GeV Cherenkov counter X-rays binaries Neutron star Photon Numerical calculations Gamma-rays galaxies Gravitational radiation Flux Star Spectral Blazar Gamma ray burst Astrophysics Gravitational radiation detector ISM clouds ISM jets and outflows Stars neutron Accelerator Methods numerical Pulsars general Acceleration of particles Cosmic rays Optical Accretion disks Gamma ray VHE Magnetohydrodynamics MHD Gamma rays general VIRGO Redshift Gamma rays galaxies Radiative transfer Methods data analysis Energy high Dark energy Gamma rays observations TeV Magnetic field Hydrodynamics Shock waves Astrophysics - Astrophysics of Galaxies Cosmology theory Imaging Horizon Cherenkov Telescope Array Gravitation AGN MAGIC Electron Background General Relativity and Quantum Cosmology Accretion ISM supernova remnants Radiation mechanisms non-thermal Pulsar Structure Interferometer Gamma ray emission Gamma ray Performance X-ray Methods statistical Galaxies Seyfert Instabilities Power spectrum Galaxies jets Submillimeter ISM Galaxies active Signature GLAST Observatory ISM molecules Density Dark matter Black hole physics LIGO Binaries close Particle acceleration Sensitivity HESS Cherenkov counter atmosphere Radio lines ISM ISM structure Equation of state