21cm line observations in the region 348° <= ell <= 360°, -22° <= B <= -1°
21cm observations of galaxies in the NW region of the Pisces-Perseus-Supercluster near the Galactic Plane
21cmFAST: A Fast, Semi-Numerical Simulation of the High-Redshift 21-cm Signal
21cmFAST: A Fast, Semi-Numerical Simulation of the High-Redshift 21-cm Signal
21st Century VLBI: Deep Wide-Field Surveys
22 year solar modulation of Earth's northern hemisphere temperatures
22-year Periodicity in the Solar Differential Rotation
220 GHZ Zenith Atmospheric Transparency at Iao, Hanle
221 Eos: a remnant of a partially differentiated parent body?
222Rn daughters influence on scaler mode of the ARGO-YBJ detector
223 GHz VLBI observations of 3C 273
22MHz flux densities of radio sources (Roger+, 1986)
22Ne in White Dwarf Interiors
22Ne(α,n)25Mg: The Key Neutron Source in Massive Stars
23 GHz VLBI Observations of SN 2008ax
23 High Redshift Supernovae from the IfA Deep Survey: Doubling the SN Sample at z>0.7
230 GHz observations of the radio galaxies Cygnus A and Virgo A
2319 + 272 - A flat spectrum quasar viewed through the cluster Abell 2584
23Na production in intermediate-mass MS stars with turbulent diffusive mixing.
24 year monitoring of extragalactic sources at 22 and 37 GHz