Examples of sources in various stages of AGB - PNe evolution
Heavily obscured AGB star: OH 26.5+0.6
18 38 32.51 -05 23.59.2
Bright post-AGB star with no hot dust: HD 161796
17 44 55.47 +50 02 39.5
Proto-PNe with strong hot dust: IRAS 10178-5958 = HEN 401
10 19 32.2 -60 13 30
Very young PNe with a lot of warm dust remaining in its CSE: IC 418
05:27:28.20 -12:41:50.3
Spare sources not now used:
Heavily obscured AGB star: IRAS 11438-6330
11:46:14.82 -63:47:12.0
Post-AGB star with no or little hot dust: IRAS 07134+1005
07 16 10.258 +09 59 47.99
Evolved PNe with very cool dust: NGC 6302
17:13:44.41 -37:06:11.2
Examples of spectra have been put together by the ESAC team, slightly modified by A.M.S. Richards. Download the files OH26.5+0.6SSAWrapper.xml,
HD161796_SSAWrapper.xml,
iras10178-5958SSAWrapper.xml and
IC418SSAWrapper.xml
Start VOSpec (stand-alone or via AVO-Aladin plug-in) and load an SSA Wrapper as a local file. The contents of each are described below.TO BE CONTINUED
OH 26.5+0.6
OH maser spectrum (MERLIN: Etoka et al, in prep.) - example of radio line
HD 161796
IRAS 10178-5958 = HEN 401
IC 418
NVSS 1.4 GHz 1.0988 (0.0329) Jy
PKS 2.7 GHz 1.63 (0.33) Jy
PMN 4.85 GHz 1.75(0.35) Jy
radio spectral index 0.38 (optically thin thermal?)
-- AnitaRichards
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