Radio receivers Angular resolution 2 Electromagnetic wave emission 2 Evolutionary stage 2 Extragalactic origin 2 Fighter aircraft 2 Galaxies 2 Gamma rays 2 Gamma rays: galaxies 2 Gases 2 Giant metrewave radio telescopes 2 Giant stars 2 ISM : clouds 2 ISM: clouds 2 ISM: general 2 Infrared devices 2 Ionization 2 Ionization of gases 2 Ionizing radiation 2 Kinetic temperatures 2 Molecular mass 2 Molecular outflows 2 Morphology 2 Multi-wavelength emissions 2 Multi-wavelength study 2 Near infrared spectra 2 Near infrared spectroscopy 2 Nuclear fuel reprocessing 2 Pulsars 2 Radio continuum: galaxies 2