Measurements of 3 He in Galactic HII regions and planetary nebulae
The cosmic abundance of the 3 He isotope has important implications for many fields of astrophysics. We are using the 8.665 GHz hyperfine transition of 3 He + to determine the 3 He/H abundance in Milky Way H ii regions and planetary nebulae. Here we review the 30 year history of our 3 He program, re...
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| Veröffentlicht in: | Proceedings of the International Astronomical Union 2009-11, Vol.5 (S268), p.81-90 |
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| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | The cosmic abundance of the
3
He isotope has important implications for many fields of astrophysics. We are using the 8.665 GHz hyperfine transition of
3
He
+
to determine the
3
He/H abundance in Milky Way H
ii
regions and planetary nebulae. Here we review the 30 year history of our
3
He program, report on its current status, and describe our future plans. |
|---|---|
| ISSN: | 1743-9213 1743-9221 |
| DOI: | 10.1017/S174392131000390X |