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astro-ph2005
The Impact of Gravitational Redshift on Systemic Water Maser Emission in NGC 4258
M. Spaans
NGC 4258 is well known for its 22 GHz water maser features that appear to reside in a thin Keplerian disk orbiting at R_0=0.13 pc. The influence of gravitational redshift on the le…
astro-ph2001
CO emission from high redshift
Nickolay Y. Gnedin, Joseph Silk, Marco Spaans
Future observations with ALMA will be able to detect star-forming primordial gal axies, and perhaps even their dwarf spheroidal satellites, in CO emission lines at redshifts approa…