HCN in IRC + 10216

HCN in the inner envelope of {chi} Cygni

HCN in Titan Atmosphere by VIMS-IR Limb Observations

HCN J = 1-0 observations in L 673 and S 235B - Two different cases of hyperfine anomalies

HCN J=5-4 Emission in APM08279+5255 at z=3.91

HCN Observations of Dense Star-Forming Gas in High Redshift Galaxies

HCN production from comet Halley

HCN Radio Emission from the Hourglass Region of M8

HCN Survey of Normal Spiral, IR-luminous and Ultraluminous Galaxies

HCN to HCO^+ Millimeter Line Diagnostics of AGN Molecular Torus I : Radiative Transfer Modeling

HCN versus HCO+ as dense molecular gas mass tracer in Luminous Infrared Galaxies

HCN(1-0) enhancement in the bar of NGC 2903

HCO mapping of the Horsehead : Tracing the illuminated dense molecular cloud surfaces

HCO(+) observations of the molecular cloud HH24-27

HCO(+), H(C-13)N, and H(C-12)N aperture synthesis observations of the circumnuclear ring in the Galactic center

HCO+ and13CO survey of CB and HHL objects

HCO+ in the Starburst Galaxy M82

HCO/+/ emission in the galacic center region. I - Observations

HCOOCH3 as a probe of temperature and structure in Orion-KL

HCOOCH3 as a probe of temperature and structure of Orion-KL