... 177G ). (right) The Crab Nebula at 347 GHz observed with SCUBA on the JCMT (see ... Loop in Orion and the Horsehead Nebula ; (6) summer--winter temperature differences ...
... AGB stars as planetary nebula precursors -- the onset and origin of asymmetric structure. ... JPL conference on Optical and IR Interferometery from Ground and Space -- Dana Point, California, May 24--May 27 1999, 16-26 ...