AKARI/IRC observations of heavily obscured oxygen-rich AGB and post-AGB stars

Details AKARI/IRC observations of heavily obscured oxygen-rich AGB and post-AGB stars AKARI/IRC observations of heavily obscured oxygen-rich AGB and post-AGB stars

2009-04-27

arxiv.org/abs/0904.4134v2

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

4 pages, 2 figures, conference paper; v2: y-axis label of Fig. 1 and 2 replaced, latest results (spectral data) from the data

Scientific paper

We present AKARI/IRC observations of a sample of six extremely red IRAS sources, of which three are variable OH/IR stars and the rest are early post-AGB stars. The OH/IR stars show a red continuum with the expected strong 10 micron silicate absorption feature, while the post-AGB stars show an even redder continuum accompanied with a comparably weak silicate absorption. We modelled the spectral energy distributions with DUSTY. While for the OH/IR stars a reasonable fit can be obtained with almost pure silicate dust, the post-AGB stars require a mixture of silicate and carbon-rich dust. We assume that in the latter objects the inner dust shell is carbon-rich, while the outer shells are still oxygen-rich.

Affiliated with

Also associated with

No associations

Rating

AKARI/IRC observations of heavily obscured oxygen-rich AGB and post-AGB stars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with AKARI/IRC observations of heavily obscured oxygen-rich AGB and post-AGB stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and AKARI/IRC observations of heavily obscured oxygen-rich AGB and post-AGB stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-322643