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相关论文: Near-IR studies of recurrent nova V745 Scorpii dur…

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The recurrent symbiotic nova V745 Sco exploded on 2014 February 6 and was observed on February 22 and 23 by the Chandra X-ray Observatory Transmission Grating Spectrometers. By that time the supersoft source phase had already ended and…

In recent years, several nova explosions have been detected by Fermi/LAT at E>100 MeV, mainly early after the explosion and for a short period of time. The first evidence of particle acceleration in novae was found in the 2006 eruption of…

高能天体物理现象 · 物理学 2019-10-22 Laura Delgado , Margarita Hernanz

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

V745 Sco is a recurrent nova, with the most recent eruption occurring in February 2014. V745 Sco was first observed by Swift a mere 3.7 hr after the announcement of the optical discovery, with the super-soft X-ray emission being detected…

V745 Sco is a Galactic symbiotic recurrent nova with nova eruptions in 1937, 1989 and 2014. We study the behavior of V745 Sco at radio wavelengths (0.6-37,GHz), covering both its 1989 and 2014 eruptions and informed by optical, X-ray, and…

We present observations at 610 MHz and 235 MHz using the Giant Metrewave Radio Telescope (GMRT) of the recurrent nova V745 Scorpii which recorded its last outburst on 6 February 2014. This is the second symbiotic recurrent nova whose light…

V3890 Sgr is a recurrent nova which has been seen in outburst three times so far, with the most recent eruption occurring on 2019 August 27 UT. This latest outburst was followed in detail by the Neil Gehrels Swift Observatory, from less…

高能天体物理现象 · 物理学 2020-10-28 K. L. Page , N. P. M. Kuin , A. P. Beardmore , F. M. Walter , J. P. Osborne , C. B. Markwardt , J. -U. Ness , M. Orio , K. V. Sokolovsky

Nova Scorpii 2023 was first detected as a luminous supersoft X-ray source (SSS) 93 days after outburst and continued emitting soft X-rays for over two months, until it was too close to the Sun to observe. The nova was monitored with the…

高能天体物理现象 · 物理学 2025-10-23 John Worley , Marina Orio , Andrej Dobrotka , Jozef Magdolen , Kim Page , Ehud Behar , Jeremy Drake , Sharon Mitrani

We present multi-epoch near-infrared photo-spectroscopic observations of Nova Cephei 2014 and Nova Scorpii 2015, discovered in outburst on 2014 March 8.79 UT and 2015 February 11.84 UT respectively. Nova Cep 2014 shows the conventional NIR…

太阳与恒星天体物理 · 物理学 2015-10-07 Mudit K. Srivastava , N. M. Ashok , D. P. K. Banerjee , D. Sand

The fast recurrent nova V745 Sco was observed in the 3-79 keV X-rays band with NuSTAR 10 days after the optical discovery. The measured X-ray emission is consistent with a collisionally ionized optically thin plasma at temperature of about…

高能天体物理现象 · 物理学 2015-06-23 M. Orio , V. Rana , K. L. Page , J. L. Sokoloski , F. Harrison

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

The super-soft source (SSS) phase of a nova eruption, observed a few days after the outburst, usually displays an absorbed X-ray thermal continuum with absorption features, emitted by the white dwarf (WD) atmosphere. However, the X-ray…

高能天体物理现象 · 物理学 2025-07-04 Sharon Mitrani , Ehud Behar , Marina Orio , Jack Worley

We present spectroscopic and photometric results of Nova V1280 Sco which was discovered in outburst in early 2007 February. The large number of spectra obtained of the object leads to one of the most extensive, near-infrared spectral…

天体物理学 · 物理学 2009-11-13 Ramkrishna Das , Dipankar Banerjee , Nagarhalli Ashok , Olivier Chesneau

We report the detection of carbon monoxide (CO) and dust, formed under hostile conditions, in recurrent nova V745 Sco about 8.7 days after its 2014 outburst. The formation of molecules or dust has not been recorded previously in the ejecta…

太阳与恒星天体物理 · 物理学 2023-08-08 D. P. K. Banerjee , C. E. Woodward , V. Joshi , A. Evans , F. M. Walter , G. H. Marion , E. Y. Hsiao , N. M. Ashok , R. D. Gehrz , S. Starrfield

I review X-ray observations of classical and recurrent novae in outburst. Significant X-ray flux is emitted by the nova shell, with a peak luminosity up to 10**35 erg/cm**2/s in the 0.2-10 keV range.In recurrent nova systems, or in novae…

天体物理学 · 物理学 2016-08-30 Marina Orio

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 nova outburst of V407 Cyg in 2010 Mar. 10 was the first observed for this star but its close resemblance to the well known symbiotic-like recurrent nova RS Oph suggests that it is also a member of this rare type of Galactic novae. The…

太阳与恒星天体物理 · 物理学 2015-06-03 S. N. Shore , G. M. Wahlgren , T. Augusteijn , T. Liimets , P. Koubsky , M. Slechta , V. Votruba

In this paper, we present the synchrotron light curve at 610 MHz from the recurrent nova V745 Sco following its outburst on 6 February 2014. The system has been detected and periodically monitored with the Giant Metrewave Radio Telescope…

高能天体物理现象 · 物理学 2016-08-29 N. G. Kantharia , P. Dutta , N. Roy , G. C. Anupama , A. Chitale , C. Ishwara-Chandra , T. P. Prabhu , N. M. Ashok , D. P. K. Banerjee

We propose a theoretical explanation of absorption/emission line systems in classical novae based on a fully self-consistent nova explosion model. We found that a reverse shock is formed far outside the photosphere ($\gtrsim 10^{13}$ cm)…

太阳与恒星天体物理 · 物理学 2022-11-30 Izumi Hachisu , Mariko Kato

Two long AstroSat Soft X-ray Telescope observations were taken of the third recorded outburst of the Symbiotic Recurrent Nova, V3890 Sgr. The first observing run, 8.1-9.9 days after the outburst, initially showed a stable intensity level…

高能天体物理现象 · 物理学 2020-11-04 K. P. Singh , V. Girish , M. Pavana , Jan-Uwe Ness , G. C. Anupama , M. Orio
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