194 citations · 984 across the 87 of their papers we have counts for
17 papers · 1 filter
Observations of the cataclysmic variable SDSS J081321.91+452809.4
Jeremy Shears, Ian Miller, Steve Brady
Our observations of the first reported outburst of SDSS J081321.91+452809.4 during 2008 April show that this cataclysmic variable is a dwarf nova. The outburst amplitude was at lea…
SDSS J162718.39+120435.0 - a dwarf nova in the period gap
Jeremy Shears, Steve Brady, Boris Gaensicke +5
SDSS J162718.39+120435.0 was suspected of being a dwarf nova from spectroscopic observations made available by the Sloan Digital Sky Survey. Photometry conducted during the 2008 ou…
The 2008 February superoutburst of V452 Cas
Christopher Lloyd, Roger Pickard, Jeremy Shears +3
Observations of the 2008 February outburst of V452 Cas show that the profile, duration and magnitude at maximum were very similar to the previous superoutburst in 2007 September. L…
Outburst characteristics of the dwarf nova V452 Cassiopeiae
Jeremy Shears, Christopher Lloyd, David Boyd +3
V452 Cas was thought to have rare outbursts, but monitoring from 2005 to 2008 has shown that the outburst interval is about one month and is weakly periodic. Observations of seven…
The orbital period of the eclipsing dwarf nova CG Draconis
Jeremy Shears, David Boyd, Steve Brady +1
We have performed time resolved photometry on the dwarf nova CG Dra and have established for the first time that it is an eclipsing system. By measuring the times of the eclipses,…
Measuring the period of the delta Scuti variable U1425-01208594 in Cassiopeia
Jeremy Shears, David Boyd, Steve Brady +2
The variability of U1425-01208594 was recently discovered by Schmidtobreick et al, who suggested that it is a member of the delta Scuti family of pulsating stars. Photometry conduc…
The orbital and superhump periods of the deeply eclipsing dwarf nova SDSS J122740.83+513925.9
Jeremy Shears, Steve Brady, Jerry Foote +2
During June 2007 the first confirmed superoutburst of the eclipsing dwarf nova SDSS J122740.83+513925.9 was observed using CCD photometry. The outburst amplitude was at least 4.7 m…
Photometry and astrometry of SS Leo Minoris during the 2006 October superoutburst
Jeremy Shears, David Boyd, Tom Krajci +3
We report unfiltered CCD observations of the first confirmed superoutburst of the SU UMa-type dwarf nova SS LMi in October 2006. From a quiescent magnitude of around 21.7 it rose t…
Superhump periods in the UGSU-type dwarf nova SDSSp J082409.73+493124.4
David Boyd, Jeremy Shears, Robert Koff
We present observations and analysis of the first reported superoutburst of the dwarf nova SDSSp J082409.73+493124.4 during February/March 2007. From a maximum observed magnitude o…
Observations of the first confirmed superoutburst of SDSS J080434.20+510349.2 in 2006 March
Jeremy Shears, Geir Klingenberg, Pierre de Ponthiere
During 2006 March the first confirmed superoutburst of the dwarf nova SDSS J080434.20+510349.2 was observed using unfiltered CCD photometry. Time-series photometry revealed superhu…
Photometry of the dwarf nova AW Sagittae during the 2006 November superoutburst
Jeremy Shears, Roger Pickard, Tom Krajci +1
During 2006 November an outburst of the dwarf nova AW Sge was observed using CCD photometry. This revealed 0.25 magnitude superhumps confirming it to be a superoutburst, possibly o…
Analysis of the first confirmed superoutburst of V337 Cygni in 2006 May
David Boyd, Tom Krajci, Jeremy Shears +1
During 2006 May the first confirmed superoutburst of the dwarf nova V337 Cygni was observed using unfiltered CCD photometry. The outburst reached a peak magnitude of 15.2 on May 22…
HR Lyrae (Nova Lyr 1919): from outburst to active quiescence
Jeremy Shears, Gary Poyner
Nova Lyrae was discovered at the Harvard College Observatory on 1919 December 6 at magnitude 6.5. We present a lightcurve for this nova based on published and archival observations…
Determination of the superhump period of the dwarf nova V701 Tau during the 2005 December superoutburst
Jeremy Shears, David Boyd
We report new measurements of the superhump period of the UGSU-type dwarf nova V701 Tau during the 2005 December superoutburst. Using unfiltered time series CCD observations on 3 n…
CG Draconis, a particularly active dwarf nova
Jeremy Shears, Roger Pickard, Gary Poyner
The dwarf nova CG Dra was intensively monitored during 2005 as part of the Variable Star Sections Recurrent Objects Programme and seven outbursts were detected. These observations…
Observations of the recently discovered dwarf nova 1RXS J053234.9+624755 during the 2005 March superoutburst
Gary Poyner, Jeremy Shears
1RXS J053234.9+624755 is a recently discovered dwarf nova. We present CCD and visual photometry during March 2005 of the first ever observed superoutburst in this system
Brief outbursts in the dwarf nova V1316 Cygni
Jeremy Shears, David Boyd, Gary Poyner
Several brief outbursts were detected in the dwarf nova V1316 Cyg during 2005. These events have an average amplitude of 1.4 magnitude and a duration of <1 to 2 days. Whilst no out…