3 papers
physics.ins-det2014
Tunable Antenna Coupled Intersubband Terahertz Detector
Nutan Gautam, Jonathan Kawamura, Nacer Chahat +5
We report on the development of a tunable antenna coupled intersubband terahertz (TACIT) detector based on GaAs/AlGaAs two dimensional electron gas. A successful device design and…
astro-ph2006
Nuclear Activity in UZC Compact Groups of Galaxies
M. A. Martinez, A. del Olmo, P. Focardi +1
We analyse the level of nuclear activity in galaxies belonging to UZC-CGs. Spectra are available for 868 galaxies (90% of the whole catalog); 67 % of them show nuclear activity (AG…
astro-ph2002
Seyfert Galaxies in Compact Groups
P. Focardi, B. Kelm, V. Zitelli +1
We present results concerning the occurrence of Seyfert galaxies in a new large sample of Compact Groups (Focardi & Kelm 2002). Seyfert galaxies turn out to be relatively rare (<3%…