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相关论文: V485 Centauri: the Shortest Period SU UMa Star

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We report extensive photometry of the dwarf nova V419 Lyr throughout its 2006 July superoutburst till quiescence. The superoutburst with amplitude of ~3.5 magnitude lasted at least 15 days and was characterized by the presence of clear…

天体物理学 · 物理学 2007-10-08 A. Rutkowski , A. Olech , K. Mularczyk , D. Boyd , R. Koff , M. Wiśniewski

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

We photometrically observed the 2002 August long outburst of BF Ara. The observation for the first time unambiguously detected superhumps (average period 0.08797(1) d), qualifying BF Ara as a genuine SU UMa-type dwarf nova. An analysis of…

天体物理学 · 物理学 2009-11-07 T. Kato , G. Bolt , P. Nelson , B. Monard , R. Stubbings , A. Pearce , H. Yamaoka , T. Richards

We report CCD photometry and analysis of the first observed superoutburst of the SU UMa-type dwarf nova KP Cassiopeiae during 2008 October. We observed a distinct shortening of the superhump period at superhump cycle 15. Before that point…

太阳与恒星天体物理 · 物理学 2010-01-28 David Boyd , Pierre dePonthiere , Jerry Foote , Mack Julian , Taichi Kato , Robert Koff , Tom Krajci , Gary Poyner , Jeremy Shears , Bart Staels

We report on the results of the QW Ser campaign which has been continued from 2000 to 2003 by the VSNET collaboration team. Four long outbursts and many short ones were caught during this period. Our intensive photometric observations…

We report on the analysis of the Kepler short-cadence (SC) light curve of V344 Lyr obtained during 2009 June 20 through 2010 Mar 19 (Q2--Q4). The system is an SU UMa star showing dwarf nova outbursts and superoutbursts, and promises to be a…

太阳与恒星天体物理 · 物理学 2015-05-30 Matt A. Wood , Martin D. Still , Steve B. Howell , John K. Cannizzo , Alan P. Smale

We report the photometric observations of an SU UMa-type dwarf nova VW CrB during two superoutbursts in 2001 and 2003 and a normal outburst in 2003. Superhumps with a period of 0.07287(1) d were observed during the 2003 superoutburst. The…

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

An intensive photometric-observation campaign of the recently discovered SU UMa-type dwarf nova, Var73 Dra was conducted from 2002 August to 2003 February. We caught three superoutbursts in 2002 October, December and 2003 February. The…

We report an analysis of photometric behaviour of DI UMa, an extremely active dwarf nova. The observational campaign (completed in 2007) covers five superoutbursts and four normal outbursts. We examined principal parameters of the system to…

天体物理学 · 物理学 2009-11-13 A. Rutkowski , A. Olech , M. Wiśniewski , P. Pietrukowicz , J. Pala , R. Poleski

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

The first results of a photometric survey of faint Cataclysmic Variables are presented. V359 Cen is an SU UMa star with a period of 112 min. Even though observed at quiescence, the mass transfer rate in this old nova may be sufficiently…

天体物理学 · 物理学 2009-11-06 Patrick A. Woudt , Brian Warner

We have studied the short-cadence Kepler public light curves of SU UMa stars, V344 Lyr and V1504 Cyg extending over a period of more than two years by using power spectral analysis. We determined the orbital period of V344 Lyr to be…

太阳与恒星天体物理 · 物理学 2015-06-16 Yoji Osaki , Taichi Kato

We report time-resolved photometric observations of the Hamburg Quasar Survey-selected dwarf nova HS 1449+6415 (= RX J1450.5+6403) during the interval from JD 2451672 to 2451724. During a long outburst with a duration of ~12 days, we…

天体物理学 · 物理学 2007-05-23 D. Nogami , D. Engels , B. T. Gaensicke , E. P. Pavlenko , R. Novak , K. Reinsch

We photometrically observed the 2003 June superoutburst of GO Gom. The mean superhump period was 0.063059(13) d. The resultant data revealed that (1) the obtained light curve contained a precursor, (2) a plateau stage of the object lasted 8…

Continuing the project described by Kato et al. (2009, arXiv:0905.1757), we collected times of superhump maxima for 127 SU UMa-type dwarf novae observed mainly during the 2016--2017 season and characterized these objects. We provide updated…

SU UMa stars are characterized by "superoutbursts" which are brighter at maximum light and which last much longer than the more frequent "ordinary" outbursts of these dwarf novae. Although there are now more than 1180 SU UMa type dwarf…

太阳与恒星天体物理 · 物理学 2021-03-17 N. Vogt , E. C. Puebla , A. Contreras-Quijada

We discovered a new deeply eclipsing SU UMa-type dwarf nova, IY UMa, which experienced a superoutburst in 2000 January. Our monitoring revealed two distinct outbursts, which suggest a superoutburst interval of ~800 d, or its half, and an…

ER UMa stars are a recently recognized small subgroup of SU UMa-type dwarf novae, which are characterized by the extremely high outburst frequency and short (19--48 d) supercycles. From the current thermal-tidal disk instability scheme,…

太阳与恒星天体物理 · 物理学 2013-01-16 Taichi Kato , Daisaku Nogami , Hajime Baba , Seiji Masuda , Katsura Matsumoto , Chatief Kunjaya

We report unfiltered photometry during the first confirmed superoutburst of the recently discovered dwarf nova, SDSS J073208.11+413008.7 and conclude that it is a member of the SU UMa family. At its brightest, the star was magnitude 15.7.…

太阳与恒星天体物理 · 物理学 2010-05-31 Jeremy Shears , Robert Koff , Richard Sabo , Bart Staels , William Stein , Patrick Wils

We observed the 1994, 1996 and 2001 outbursts of HO Del. From the detection of secure superhumps, HO Del is confirmed to be an SU UMa-type dwarf nova with a superhump period of 0.06453(6) d. Based on the recent observations and the past…

天体物理学 · 物理学 2015-06-24 T. Kato , D. Nogami , M. Moilanen , H. Yamaoka