C2 lines in sunspots.
C2, H2O(+), and dust distribution in Comet P/Halley near opposition
C2-BALLIK-RAMSAY Bands in Late Carbon Stars
c2d Spitzer IRS Spectra of Disks around T Tauri Stars. III. [Ne II], [Fe I], and H_2 gas-phase lines
c2d Spitzer IRS spectra of embedded low-mass young stars: gas-phase emission lines
C2D Spitzer-IRS spectra of disks around T Tauri stars V. Spectral decomposition
C2D Spitzer-IRS spectra of disks around T Tauri stars. IV. Crystalline silicates
C2D Spitzer-IRS spectra of disks around T Tauri stars: I. Silicate emission and grain growth
C2H in Comets
C2H in the 2 micron infrared spectrum of IRC +10216
C2H, HC3N and HNC Observations in OMC-2/3
C2H2 and Eddy Diffusion in the Middle Atmosphere of Saturn
C2H2 Photolysis Products as a Simulation of Titans Atmosphere
C3 and CN parents in Comet P/Halley
C3 and infrared spectrophotometry of Y Canum Venaticorum
C32, A Young Star Cluster in IC 1613
C3H8 and C3H4 in Titan's atmosphere
C3Hα A New Probe of the Interstellar Medium
C3S and C5S in IRC +10216
C4H2, HC3N and C2N2 in Titan's atmosphere