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相关论文: The outburst of V713 Cephei in August 2009

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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 magnitudes. The orbital period was measured as 0.06296(5) d…

天体物理学 · 物理学 2007-11-15 Jeremy Shears , Steve Brady , Jerry Foote , Donn Starkey , Tonny Vanmunster

We present photometry obtained during the 2012 May and September outbursts of the frequently outbursting dwarf nova, V1227 Her. Superhumps were present in both cases with a peak-to peak amplitude of up to 0.28 mag, showing these events to…

太阳与恒星天体物理 · 物理学 2013-04-11 Jeremy Shears , Ian Miller , Roger Pickard , Richard Sabo

During July 2009 we observed the first confirmed superoutburst of the eclipsing dwarf nova SDSS J150240.98+333423.9 using CCD photometry. The outburst amplitude was at least 3.9 magnitudes and it lasted at least 16 days. Superhumps having…

We report unfiltered photometry during superoutbursts of PU UMa in 2009 and 2012. The amplitude was 4.5 magnitudes above mean quiescence and lasted at least 9 to 10 days. Superhumps were present with a peak-to-peak amplitude of up to ~0.3…

太阳与恒星天体物理 · 物理学 2012-09-19 Jeremy Shears , Franz-Josef Hambsch , Colin Littlefield , Ian Miller , Etienne Morelle , Roger Pickard , Jochen Pietz , Richard Sabo

We report unfiltered CCD photometry of the eclipsing dwarf nova SDSS J093249.57+472523.0 obtained during its first confirmed outburst in 2011 March. The outburst amplitude was at least 3.0 magnitudes above mean quiescence and it lasted at…

太阳与恒星天体物理 · 物理学 2012-02-06 Jeremy Shears , Steve Brady , Shawn Dvorak , Enrique de Miguel , Etienne Morelle , Arto Oksanen , Richard Sabo

We report K2 observations of the eclipsing cataclysmic variable V729 Sgr which covered nearly 80 days in duration. We find five short outbursts and two long outbursts, one of which shows a clear plateau phase in the rise to maximum…

太阳与恒星天体物理 · 物理学 2017-05-31 Gavin Ramsay , Matt A. Wood , John Cannizzo , Steve Howell , Alan Smale

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 superoutbursts over the same period shows a very repeatable…

天体物理学 · 物理学 2008-05-13 Jeremy Shears , Christopher Lloyd , David Boyd , Steve Brady , Ian Miller , Roger Pickard

We report unfiltered CCD observations of the first confirmed superoutburst of the dwarf nova RX J1715.6+6856 in August 2009. At quiescence the star was magnitude 18.3 (CCD, clear). The outburst amplitude was at least 2.4 magnitudes and it…

太阳与恒星天体物理 · 物理学 2009-12-22 Jeremy Shears , Ian Miller , Richard Sabo

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 of 15.4C it declined at 0.09 mag/d for 7 days, flattened out…

天体物理学 · 物理学 2008-08-02 David Boyd , Jeremy Shears , Robert Koff

We present observations and analysis of the 2009 outburst of the unusual dwarf nova V630 Cas which is only the third recorded outburst of this star. The outburst lasted about 104 days, with the rise to maximum being slightly slower than the…

太阳与恒星天体物理 · 物理学 2009-11-09 Jeremy Shears , Gary Poyner

We report unfiltered CCD photometry of the first confirmed superoutburst of the recently discovered dwarf nova, SDSS J083931.35+282824.0 in April 2010. From a quiescence magnitude of ~19.8 it rose to 14.0, an outburst amplitude of at least…

太阳与恒星天体物理 · 物理学 2010-11-25 Jeremy Shears , Enrique de Miguel , George Roberts , Donald F. Collins , Gordon Myers , Tut Campbell

We present photometric observations of the dwarf nova 1RXS J053234.9+624755. We performed a detailed analysis of the superoutburst that occurred in August 2009. We found the superhump period to be P_sh=0.057122(14)days. Based on the O-C…

太阳与恒星天体物理 · 物理学 2011-01-06 A. Rutkowski , A. Olech , R. Poleski , M. Sobolewska , P. Kankiewicz , T. Ak , D. Boyd

We report unfiltered photometry of BG Arietis (= SDSS J015151.87+140047.2) in 2009 and 2010 which shows the presence of superhumps with peak-to-peak amplitude of up to 0.36 magnitudes showing this to be an SU UMa type dwarf nova. The…

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 and lasted 13 days before the object returned to quiescence…

天体物理学 · 物理学 2008-11-26 David Boyd , Tom Krajci , Jeremy Shears , Gary Poyner

CCD photometric observations of the dwarf nova V1006 Cyg were carried out in 2015-2017 with 11 telescopes located at 7 observatories. They covered the 2015 superoutburst with rebrightening, five normal outbursts of ~4-day duration and one…

We report the discovery of a new dwarf nova and our observations of its first confirmed superoutburst during 2009 October. The outburst amplitude was 6 magnitudes. The main outburst lasted 17 days and was followed 4 days later by a…

太阳与恒星天体物理 · 物理学 2010-05-19 Jeremy Shears , Patrick Wils , Greg Bolt , Franz-Josef Hambsch , Tom Krajci , Ian Miller , Richard Sabo , Bart Staels

We present time resolved photometry of the cataclysmic variable SDSS J081610.84+453010.2 and have established for the first time that it is an eclipsing dwarf nova. We observed an outburst of the system which lasted about 11 days and had an…

太阳与恒星天体物理 · 物理学 2011-04-04 Jeremy Shears , Steve Brady , Tut Campbell , Arne Henden , Enrique de Miguel , Etienne Morelle , George Roberts , Richard Sabo , Ian Miller

We observed the ROSAT-selected eclipsing dwarf nova GY Cnc (=RX J0909.8+1849) during the 2001 November outburst. We refined the orbital period to be 0.17544251(5) d. The fading portion of the outburst was indistinguishable from those of…

天体物理学 · 物理学 2015-06-24 T. Kato , R. Ishioka , M. Uemura

During the British Astronomical Association (BAA) 2022 campaign, 27436 photometric observations of the dwarf nova (DN) CG Draconis were made, with 106 eclipses recorded. This work summarizes the new data available and provides updated…

太阳与恒星天体物理 · 物理学 2023-05-03 Maxim Usatov , Jeremy Shears

We report CCD photometry of the superoutburst of the dwarf nova V1212 Tau obtained during 2011 January and February. The outburst amplitude was at least 6 magnitudes and it lasted at least 12 days. Three distinct superhump regimes were…

太阳与恒星天体物理 · 物理学 2011-09-21 Jeremy Shears , Tom Krajci , Enrique de Miguel , Ian Miller , Etienne Morelle , George Roberts , Richard Sabo , William Stein , Raoul Behrend
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