Subject
- dark matter1
- earth (planet)1
- extra-galactic stars1
- extragalactic1
- galactic center1
- galactic evolution1
- galactic plane1
- galaxies: evolution1
- galaxies: formation1
- galaxies: luminosity function1
- galaxy1
- gamma-ray bursts1
- gbt1
- interstellar cloud1
- large-scale structure of universe1
- mass function1
- megamasers1
- multibeam1
- nrao1
- optical observations1
