Observations spectrographiques effectuées avec la caméra électronique d'étoiles en contraction gravitationnelle ayant un excès de rayonnement ultraviolet /

Autor Walker, Merle F., 1926-
Vydáno 1961

Image tube spectroscopic studies of rapid variables. IV, Spectroscopic and photometric observations of AE Aquarii /

Autor Chincarini, Guido, 1938-, Walker, Merle F., 1926-
Vydáno 1981

Photometric zero-point stars in Magellanic Cloud clusters /

Autor Walker, Merle F., 1926-
Vydáno 1987

Simultaneous spectroscopic and photometric observations of four T Tauri-type variables /

Autor Walker, Merle F., 1926-
Vydáno 1987

A dew detector for use with astronomical telescopes /

Autor Walker, Merle F., 1926-
Vydáno 1987

The effect of solar activity on the V and B band sky brightness /

Autor Walker, Merle F., 1926-
Vydáno 1988

Central-region motions in 21 nearby galaxies /

Autor Walker, Merle F., 1926-
Vydáno 1989

Photoelectric observations of moderate to rapidly rotating pre-main-sequence stars in the Orion nebula cluster /

Autor Walker, Merle F., 1926-
Vydáno 1990

Photoelectric observations of VV Puppis /

Autor Walker, Merle F., 1926-
Vydáno 1965

Performance of the spectracon in astronomical spectroscopy /

Autor Walker, Merle F., 1926-
Vydáno 1967

Some problems concerning the collisional excitation of forbidden lines in planetary nebulae /

Autor Czyzak, Stanley J., Walker, Merle F., 1926-, Aller, Lawrence H. 1913-2003
Vydáno 1969

The evidence for variable infall of material in the ultraviolet excess stars /

Autor Walker, Merle F., 1926-
Vydáno 1968

Simultaneous photometric and image-tube spectroscopic observations of short period binary systems and rapid intrinsic variables /

Autor Walker, Merle F., 1926-
Vydáno 1971

Identification and protection of existing and potential observatory sites /

Autor Walker, Merle F., 1926-
Vydáno 1976