Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..321..221s&link_type=abstract
Extrasolar Planets: Today and Tomorrow, ASP Conference Proceedings, Vol. 321, held 30 June - 4 July 2003, Institut D'Astrophysiq
Astronomy and Astrophysics
Astrophysics
1
Scientific paper
A model of maser emission spots as icy planets or big comets which orbit young massive stars and protostars is proposed. The interstellar gas phase abundance of OH, methanol or water is much too low to produce maser emission from small gas clumps according to standard maser models. The interstellar grains consisting mainly of water ice and several per cent of methanol, can produce a favorable environment for the maser emission after evaporation. Big comets or planets covered by the water/methanol ice, orbiting young massive stars and protostars can be the sites of the maser emission. The ice evaporates from the surface under stellar radiation, and methanol molecules emit corresponding maser lines. OH molecules are produced by the dissociation of water. VLBI observations of masers show that prospective planets are found in disks, and move on Keplerian orbits around O-B stars. Extended envelopes of the icy planets provide molecular abundance, gas temperature and density adequate for the maser emission.
No associations
LandOfFree
Maser Emission from Icy Exo-Planets 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 Maser Emission from Icy Exo-Planets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Maser Emission from Icy Exo-Planets will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1021882