Search
Now showing items 271-280 of 308
Ocular Galaxies: NGC 2535 and its Starburst Companion NGC 2536
(The International Astronomical Union, 1999)
Searching for the hidden broad-line region in Centaurus A
(1999)
We present the first near-infrared (K-band) spectropolarimetric observations of the nuclear region of Centaurus A. Although the data are of high signal-to-noise ratio, polarized broad Brγ is not detected and we place a 3σ ...
A time-variable scattered component to broad Hα in the Seyfert 1 galaxy Mrk 509
(1999)
We present optical spectropolarimetry data for the Seyfert 1 galaxy Mrk 509 for three epochs: 1996 August and 1997 May and August. We confirm previous findings that broad Hα has a significantly greater width in the polarized ...
Dynamic Energy Consumption Indicators for Appliances
(EU/ETSU, 1999)
ROSAT X-ray observations of 3CRR radio sources
(1999)
Over half the 3CRR sample of radio galaxies and quasars has been observed in X-rays with ROSAT pointed observations, and we present results from these observations, discussing many of the sources in detail. The improved ...
Lessons for the future : Safety critical systems
(IEEE COMPUTER SOC, 1999)
This paper investigates the underlying flaws in the development of the LAS despatch system and compares it with similar attempts from across the globe. The common themes that seem to plague ambulance despatch systems are ...