H alpha Fabry-Perot Study in the Orion Nebula (M 42): Protoplanetary Disks

H 109o~ Aperture Synthesis Observations of DR 21 and W3

H 1175. Nova Aquilae, no. 2. 185604.

H 1504 + 65 - an extraordinarily hot compact star devoid of hydrogen and helium

H 187 - At the Onset of a New Eclipse

H 21cm emission as a tracer of gas during the evolution from protoplanetary to debris disks

H 90 alpha Radio Recombination Line Observations of RCW 38

H Absorption in the Direction of CL 4

H alpha emission in Cygnus X-1.

H alpha emission line profiles of selected post-AGB stars

H alpha emitting galaxies and the star formation rate density at z~0.24

H alpha off-band pre-flare activities

H alpha rotation curves of Low Surface Brightness galaxies

H alpha Star Formation Rates in Massive Galaxies at z ~ 1

H alpha survey of late-type active binaries

H and C 134cc Line Maps of NGC 2024 and W 3

H and He burning phases in galactic clusters: The role of the original chemical composition

H and K Band Methane Features in an L Dwarf, 2MASS 0920+35

H and K Emission in Late-Type Stars: Dependence of Line Width on Luminosity and Related Topics.

H Balmer lines in terrestrial aurora: Historical record and new observations by OSIRIS on Odin