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astro-ph2005
The faint supernova remnant G 116.5+1.1 and the detection of a new candidate remnant
F. Mavromatakis, P. Boumis, E. M. Xilouris +2
The extended supernova remnant G 116.5+1.1 was observed in the optical emission lines of Halpha+[N II], [S II] and [O III]; deep long-slit spectra were also obtained. The morpholog…
astro-ph2004
Multi-band optical micro-variability observations of the BL Lac object S4 0954+658
I. E. Papadakis, V. Samaritakis, P. Boumis +1
We have observed S4 0954+658 in the BVRI bands in 2001, and in the BI bands in 2002. The observations resulted in almost evenly sampled light curves, 3-8 hours long, with an averag…
astro-ph2003
Multi-wavelength study of the G 82.2+5.3 supernova remnant
F. Mavromatakis, B. Aschenbach, P. Boumis +1
We present the first CCD flux-calibrated images of the snr G 82.2+5.3 in major optical emission lines. The [O III] 5007 line provides the first direct evidence of optical emission…