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Optical and IR light curves of VV Puppis
(1983)
Optical (0.36-0.6 micron) light curves with time resolutions of seconds, and infrared (IR) (1.25-2.2 microns) light curves with time resolutions of minutes, are presented for VV Puppis during a high state. The optical light ...
The wavelength dependence of polarization in BL Lac objects
(1983)
Accurate polarization measurements of six BL Lac objects and one highly polarized QSO have been obtained simultaneously at optical and near-infrared wavelengths. The polarizations observed in the infrared are generally ...
The variable infrared source near HH100
(1982)
Photometric observations are presented which confirm the high variability, of up to 2.5 mag at K, of the IR source associated with the Herbig-Haro object HH100, and it is suggested that such a large variation must be a ...
Linear polarization of T-Tauri stars
(1981)
Linear polarization observations over the wavelength range 0.44-2.2 microns are presented for six T Tauri type stars. All of the stars studied show substantial polarization in the infrared, while T Tau itself (and probably ...
Infrared and optical polarization of Markarian-421
(1981)
Observations of the polarization of Mrk 421 in the V, J, and K bands are presented. The infrared radiation shows variable polarization with a range of at least 2-4%. The spectrum of the nonthermal source in the VJK regions ...
The X-ray cataclysmic variable 1E0643.0 −1648
(1981)
We have used a new simultaneous IR/optical high-speed photometer on the UK IR telescope to study the recently discovered X-ray cataclysmic variable 1E0643.0−1648 (refs 1, 2). The light curve of this object obtained by the ...
IR photometry and polarimetry of 2A0311−227
(1980)
The X-ray source 2A0311 − 227 has recently been identified with a star whose spectrum and polarization properties show it to be an AM Herculis type binary. These binaries are thought to consist of a synchronously rotating ...