6 papers · 1 filter
Time-resolved observations of the short period CV SDSS J123813.73-033933
S. V. Zharikov, G. H. Tovmassian, V. Neustroev +2
We present simultaneous spectral and photometric observations of SDSS J123813.73-033933.0. From Ha radial velocity measurements we determined the orbital period of the system to be…
Spectroscopy and Doppler tomography of BZ Ursae Majoris in quiescence
V. V. Neustroev, A. Medvedev, S. Turbin +1
We present the first results of time-resolved spectroscopic observations of little-studied dwarf nova BZ Ursae Majoris in quiescence.
High Speed Phase-Resolved 2-d UBV Photometry of the Crab pulsar
A. Golden, A. Shearer, R. M. Redfern +5
We report a phase-resolved photometric and morphological analysis of UBV data of the Crab pulsar obtained with the 2-d TRIFFID high speed optical photometer mounted on the Russian…
Modelling emission line profiles of a non-uniform accretion disk
N. V. Borisov, V. V. Neustroev
Techniques of calculation of emission line profiles formed in a non--uniform accretion disk is presented. Change of the profile shape as a function of phase turn of the disk with a…
A Search for the Optical Counterpart of PSR B1951+32 in the Supernova Remnant CTB 80
Creidhe O'Sullivan, A. Shearer, M. Colhoun +8
Using time-resolved two-dimensional aperture photometry we have put upper limits on the pulsed emission from two proposed optical counterparts for PSR B1951+32. Our pulsed upper li…
Pulsed optical emission from Geminga
A. Shearer, A. Golden, S. Harfst +9
We present optical data which shows that G", the optical counterpart of the gamma-ray pulsar Geminga, pulses in B with a period of 0.237 seconds. The similarity between the optical…