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We present near-IR observations of the 2010 outburst of U Sco. JHK photometry is presented on ten consecutive days starting from 0.59 days after outburst. Such photometry can gainfully be integrated into a larger database of other…

太阳与恒星天体物理 · 物理学 2015-05-19 D. P. K. Banerjee , R. K. Das , N. M. Ashok , M. T. Rushton , S. P. S. Eyres , M. P. Maxwell , H. L. Worters , A. Evans , B. E. Schaefer

We present early spectroscopy of the recurrent nova U~Sco during the outburst in 2010. We successfully obtained time-series spectra at $t_{\rm d}=$0.37--0.44~d, where $t_{\rm d}$ denotes the time from the discovery of the present outburst.…

Synoptic spectroscopic observations of the U Sco 2010 outburst from maximum light to quiescence as well as a contemporaneous X-ray observation are presented and analyzed. The X-ray spectrum 52 days after outburst indicates a hot source…

太阳与恒星天体物理 · 物理学 2015-05-20 M. P. Diaz , R. E. Williams , G. J. Luna , M. Moraes , L. Takeda

U Scorpii is a recurrent nova which has been observed in outburst on 10 occasions, most recently in 2010. We present near-infrared and optical spectroscopy of the 2010 outburst of U Sco. The reddening of U Sco is found to be $E(B-V) =…

In this paper we present and discuss our time-resolved photometry of an eclipsing recurrent nova, U Sco, during an outburst in 1999, which was conducted from immediately after the optical maximum to the final fading toward the quiescence.…

天体物理学 · 物理学 2015-06-24 Katsura Matsumoto , Taichi Kato , Izumi Hachisu

On 28 January 2010, the recurrent nova U Scorpii had its long predicted eruption; prior preparation allowed for this to become the all-time best observed nova event. The coverage included daily and hourly spectra in the X-ray, ultraviolet,…

太阳与恒星天体物理 · 物理学 2010-09-17 Bradley E. Schaefer

We have performed our spectroscopic and multi-color photometric observations of the recurrent nova U Scorpii at the earliest stage of the 2010 outburst. 0.37 days after the discovery of the outburst, we can see broad and prominent emission…

太阳与恒星天体物理 · 物理学 2012-01-10 Kazuyoshi Imamura , Kenji Tanabe

The recurrent nova U Scorpii most recently erupted in 2010. Our collaboration observed the eruption in bands ranging from the Swift XRT and UVOT w2 (193 nm) to K-band (2200 nm), with a few serendipitous observations stretching down to WISE…

We report the discovery by B. G. Harris and S. Dvorak on JD 2455224.9385 (2010 Jan 28.4385 UT) of the predicted eruption of the recurrent nova U Scorpii (U Sco). We also report on 815 magnitudes (and 16 useful limits) on the pre-eruption…

VLT and SALT spectroscopy of U Sco were obtained $\sim$18 and $\sim$30 months after the 2010 outburst. From these spectra the accretion disc is shown to take at least 18 months to become fully reformed. The spectral class of the companion…

太阳与恒星天体物理 · 物理学 2013-05-16 M. P. Maxwell , M. T. Rushton , S. P. S. Eyres

U Sco is a recurrent nova with eleven observed eruptions, most recently in 2010.1 and 2022.4. I report on my program (running since 1989) of measuring eclipse times and brightnesses of U Sco in quiescence, from 2010 to 2022. The orbital…

太阳与恒星天体物理 · 物理学 2022-09-21 Bradley E. Schaefer

CCD BVRcIc photometric observations of the 2010 outburst of the recurrent nova U Scorpii are presented. The light-curve has a smooth development characterized by t2(V)=1.8 and t3(V)=4.1 days, close to the t2(V)=2.2 and t3(V)=4.3 days of…

太阳与恒星天体物理 · 物理学 2010-03-16 U. Munari , S. Dallaporta , F. Castellani

We derive the mass of the white dwarf in the eclipsing recurrent nova U Sco from the radial velocity semi-amplitudes of the primary and secondary stars. Our results give a high white dwarf mass of M_1 = 1.55 \pm 0.24M_\odot, consistent with…

天体物理学 · 物理学 2007-05-23 T. D. Thoroughgood , V. S. Dhillon , S. P. Littlefair , T. R. Marsh , D. A. Smith

Near-IR spectroscopy is presented for Nova Scorpii 2014. It is shown that the outburst occurred in a symbiotic binary system - an extremely rare configuration for a classical nova outburst to occur in but appropriate for the eruption of a…

太阳与恒星天体物理 · 物理学 2015-07-10 Vishal Joshi , D. P. K. Banerjee , N M Ashok , V Venkataraman , F. M. Walter

A high-resolution spectroscopic survey of postoutburst novae reveals short-lived heavy element absorption systems in a majority of novae near maximum light, having expansion velocities of 400-1000 km/s and velocity dispersions between…

天体物理学 · 物理学 2009-11-13 Robert Williams , Elena Mason , Massimo Della Valle , Alessandro Ederoclite

The spectroscopic and photometric evolution of the 1999 outburst of the eclipsing and recurrent nova U Sco is presented. The photometric evolution closely matches that of the previous events. The FWZI=10,000 km/sec for emission lines at…

天体物理学 · 物理学 2009-09-25 U. Munari , T. Tomov , L. Tomasella , T. Zwitter , P. Bonifacio , P. Molaro , P. Selvelli , A. Niedzielski , A. Pearce

We present optical and NIR spectroscopic observations of U Sco 2010 outburst. From the analysis of lines profiles we identify a broad and a narrow component and show that the latter originates from the reforming accretion disk. We show that…

太阳与恒星天体物理 · 物理学 2015-06-05 Elena Mason , Alessandro Ederoclite , Robert E. Williams , Massimo Della Valle , Johny Setiawan

BeppoSAX detected luminous 0.2-2.0 keV supersoft X-ray emission from the recurrent nova U Sco ~19-20 days after the peak of the optical outburst in February 1999. U Sco is the first recurrent nova to be observed during a luminous supersoft…

天体物理学 · 物理学 2008-11-26 P. Kahabka , H. W. Hartmann , A. N. Parmar , I. Negueruela

The recurrent nova (RN) V745 Scorpii underwent its third known outburst on 2014 February 6. Infrared monitoring of the eruption on an almost daily basis, starting from 1.3d after discovery, shows the emergence of a powerful blast wave…

高能天体物理现象 · 物理学 2015-06-19 D. P. K. Banerjee , Vishal Joshi , V. Venkataraman , N. M. Ashok , G. H. Marion , E. Y. Hsiao , A. Raj
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