Now showing items 1-10 of 23
The 1993 multiwavelength campaign on 3C 279 : the radio to gamma-ray energy distribution inlow state
Simultaneous observations of 3C 279 at radio, millimeter, near-infrared, optical, ultraviolet (with IUE) and X-ray (with ROSAT) wavelengths were obtained in 1992 December-1993 January, during a three week pointing at the ...
On Improving the Calibration of Millimetre and Submillimetre Photometry at the James Clerk Maxwell Telescope / JCMT
A method is described for deriving the atmospheric extinction coefficients corresponding to the passband filters in the James Clerk Maxwell Telescope (JCMT) common-user photometer. This method takes advantage of the ...
Infrared Photometry of Blazars - 8 Years of Observations
We present photometric observations of 16 blazar sources at mid- to near- infrared wavelengths, covering the period 1986 January to 1993 December. We present the data in tabular form and, for selected well-sampled sources, ...
A Comparison of the Radio / Submillimetre Spectra of Bl-Lacertae Objects and Flat Spectrum Radio Quasars
We present quasi-simultaneous radio, millimetre and submillimetre spectra of 22 BL Lac objects and 24 radio-loud, violently variable quasars. These data are used to test the hypothesis that BL Lacs and OVV quasars are ...
Soft x-ray observations of the early b-giants beta and epsilon CMA
The study reports observations performed with the PSPC on board the Roentgensatellit (ROSAT) of the two nearby giant stars Beta CMa (B1 II-III) and Epsilon CMa (B2 II). Upper limits in the region of +/- 10 percent can be ...
The Physics of Shocked Outflows In Star Forming Molecular Clouds
(Astronomical Society of the Pacific, 1994)
Recent near-IR imaging of the Orion molecular cloud has revealed a complex of dense bullets, visible as [FeII] emitting HH-objects at the tips of H2 wakes, ejected explosively from the cloud core. Having resolved individual ...