共 39 条
- [27] Determination of the primordial helium abundance from radio recombination line observations: New data. The source W51 ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS, 2013, 39 (11): : 737 - 745
- [28] New results from H92 alpha recombination line observations of NGC 253 REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA: SERIE DE CONFERENCIAS, VOL 6, MAYO 1997: 1ST GUILLERMO HARO CONFERENCE ON ASTROPHYSICS - STARBURST ACTIVITY IN GALAXIES, 1997, 6 : 58 - 60