Hα detection of a clump of distant HII regions in the Milky Way.

Hα Dimmings Associated with the X1.6 Flare and Halo Coronal Mass Ejection on 2001 October 19

Hα Distances to High Velocity Clouds

Hα Doppler Tomography of AM Her: Evidence for Bipolar Accretion

Hα echelle spectroscopy of Be stars: an atlas.

Hα Ejecta in the Outer Corona

Hα Emission 11 Kiloparsecs above M82

Hα Emission 11 KPC Above M82

Hα Emission and Dynamics in Groups of Galaxies

Hα Emission and Electron Beams - its Relation in Bright Points of Solar Flares

Hα emission and infrared excess in Be stars: probing the circumstellar disc.

Hα emission from pre-main sequence stars.

Hα Emission from the Magellanic Stream

Hα Emission in Algol

Hα emission in pre-main sequence stars. I. an atlas of line profiles.

Hα Emission in the Central Regions of Nearby Galaxies.

Hα Emission in the Central Regions of Nearby Galaxies.

Hα emission in the chromospherically active binary σ_2_ Coronae Borealis (TZ CrB).

Hα emission line spectroscopy in NGC 330. On the hybrid model for global oscillations in Be star circumstellar disks

Hα Emission of the HII region BSF8