ISO observations of the planetary nebula Lindsay 305 in the Small Magellanic Cloud

Details ISO observations of the planetary nebula Lindsay 305 in the Small Magellanic Cloud ISO observations of the planetary nebula Lindsay 305 in the Small Magellanic Cloud

2000-08-06

arxiv.org/abs/astro-ph/0008100v1

Astronomy and Astrophysics

Astrophysics

4 pages, 2 figures, to appear in the Publications of the Astronomical Society of Japan

Scientific paper

We present ISO (Infrared Space Observatory) observations of the planetary nebula Lindsay 305 (L 305) in the Small Magellanic Cloud. L 305 is very prominent in the ISOCAM frames at 6.75 and 11.5 $\mu$m, although it is under the detection limit at 4.5 $\mu$m. The obtained spectral energy distribution shows a strong mid-IR excess, which, depending on the amount of energy radiated at wavelengths longer than 11.5 $\mu$m, may be as large as $\sim 1500 L_{\odot}$. However, since an accurate estimate of the total nebular luminosity is not available up to date, the evolutionary status of L 305 can not yet be constrained precisely.

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