Ophthalmoscope 发表于 2025-4-1 02:49:35
High-Resolution Radio Observations of OH/IR StarsIR stars, spanning a range from 5 to 10. AU. The OH(1612) data indicate that the gas in the outer envelope (R≳1000 AU) is radially expanding at a nearly constant velocity which can range from about 3 to 40 km s.. Possible second-order effects include velocity streaming, radial acceleration, and perhGROUP 发表于 2025-4-1 07:36:08
Identification of OH/IR Stars from Color Selected IRAS Sourcescan easily detect sources of ~50 mJy, so giving a 20 fold improvement in sensitivity. Results of both a 1612 MHz and a 1665/7 MHz survey from Arecibo are presented. These show that color-selected samples include sources with three distinctly different galactic latitude distributions. Objects with (6