Abstract
We have observed Sakurai’s object in the S(1)λ2.121
line of H2 and in the J = 2 → 1 line of 12CO. We give upper
limits on the H2 and 12CO emission from the planetary nebula
associated with this object. Assuming a distance of 3.8 kpc, we
obtain an upper limit on the mass of molecular hydrogen in the
planetary nebula of 1.8 10−4 M for an excitation temperature
of 1000 K and, for an excitation temperature of 25 K, an upper
limit of 1.5 10−5 M on the mass of CO.
line of H2 and in the J = 2 → 1 line of 12CO. We give upper
limits on the H2 and 12CO emission from the planetary nebula
associated with this object. Assuming a distance of 3.8 kpc, we
obtain an upper limit on the mass of molecular hydrogen in the
planetary nebula of 1.8 10−4 M for an excitation temperature
of 1000 K and, for an excitation temperature of 25 K, an upper
limit of 1.5 10−5 M on the mass of CO.
| Original language | English |
|---|---|
| Pages (from-to) | 292-294 |
| Journal | Astronomy and Astrophysics |
| Volume | 335 |
| Publication status | Published - 1998 |
Keywords
- stars: circumstellar matter
- infrared: ISM: lines and bands
- radio lines: ISM
- Sakurai's object = V 4334 Sgr