Abstract
We report the 3.5σ detection of dust in the core of the metal-rich ([Fe/H] =−0.4) globular cluster NGC 6356. The dust mass in the core is ∼ 4–17 × 10−3 M⊙, depending on the dust equilibrium temperature. We rule out sputtering as a grain destruction mechanism in NGC 6356, unless grains are very small (∼30 Å). We also place the upper limit of 6.6 × 10−3 on the CO-to-dust ratio in this cluster. This value is significantly smaller than the CO-to-dust ratio in the general Galactic interstellar medium, and in the outflows of evolved stars.
Original language | English |
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Pages (from-to) | L30-L32 |
Journal | Monthly Notices of the Royal Astronomical Society |
Volume | 301 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1 Dec 1998 |
Keywords
- circumstellar matter
- dust
- extinction
- globular clusters: individual: NGC 6356