has subject area 0201 Astronomical and Space Sciences (FoR) 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics (FoR) 0306 Physical Chemistry (incl. Structural) (FoR) Astronomy & Astrophysics (Science Metrix)
keywords Astronomy & Astrophysics EMISSION FLOCCULANT GALAXIES INDIVIDUAL (M101) GALAXIES INTERSTELLAR MATTER GALAXIES STRUCTURE GAS GRAND DESIGN H-II-REGIONS INTERSTELLAR MOLECULES LUMINOSITY MOLECULAR CLOUDS PHOTOMETRY Physical Sciences SPIRAL GALAXY M-101 STARS FORMATION Science & Technology VELOCITY-FIELD