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相关论文: The Peculiar Multi-Wavelength Evolution Of V1535 S…

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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…

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

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

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

A nova in the Local Group irregular dwarf galaxy IC 1613 was discovered on 2015 September 10 and is the first nova in that galaxy to be spectroscopically confirmed. We conducted a detailed multi-wavelength observing campaign of the eruption…

太阳与恒星天体物理 · 物理学 2017-09-20 S. C. Williams , M. J. Darnley , M. Henze

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 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

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 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 report optical photometry and optical through mid-infrared spectroscopy of the classical nova V1186 Sco. This slowly developing nova had an complex light curve with multiple secondary peaks similar to those seen in PW Vul. The time to…

Pre-outburst 2MASS and WISE photometry of Nova Sco 2014 (V1534 Sco) have suggested the presence of a cool giant at the location of the nova in the sky. The spectral evolution recorded for the nova did not however support a direct…

太阳与恒星天体物理 · 物理学 2018-01-31 U. Munari , D. P. K. Banerjee

We present near-infrared (1 - 2.5 micron) spectroscopic and photometric results of Nova V2615 Ophiuchi which was discovered in outburst in 2007 March. Our observations span a period of ~ 80 days starting from 2007 March 28 when the nova was…

太阳与恒星天体物理 · 物理学 2015-05-13 Ramkrishna Das , Dipankar P. K. Banerjee , N. M. Ashok

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…

The discovery of GeV gamma-rays from classical novae indicates that shocks and relativistic particle acceleration are energetically key in these events. Further evidence for shocks comes from thermal keV X-ray emission and an early peak in…

高能天体物理现象 · 物理学 2016-08-31 Andrey Vlasov , Indrek Vurm , Brian Metzger

We present the results of our analysis of new optical, ultraviolet (UV) and X-ray observations of a highly variable source $-$ AX J1549.8$-$5416. Both the detection of several fast rise, exponential decay outbursts in the optical light…

Nova V5116 Sgr 2005 No. 2, discovered on 2005 July 4, was observed with XMM-Newton in March 2007, 20 months after the optical outburst. The X-ray spectrum showed that the nova had evolved to a pure supersoft X-ray source, indicative of…

高能天体物理现象 · 物理学 2015-05-14 Gloria Sala , Margarita Hernanz , Carlo Ferri , Jochen Greiner

The BVI lightcurves of seven recent novae have been extensively mapped with daily robotic observations from Atacama (Chile). They are V1534 Sco, V1535 Sco, V2949 Oph, V3661 Oph, MASTER OT J010603.18-744715.8, TCP J1734475-240942 and…

太阳与恒星天体物理 · 物理学 2017-06-28 U. Munari , F. -J. Hambsch , A. Frigo

The symbiotic nova V745 Sco was observed in outburst on 2014 February 6. Its observations by the Chandra X-ray Observatory at days 16 and 17 have revealed a spectrum characterized by asymmetric and blue-shifted emission lines. Here we…

高能天体物理现象 · 物理学 2016-12-07 S. Orlando , J. J. Drake , M. Miceli

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

The importance of shocks in nova explosions has been highlighted by Fermi's discovery of \gamma-ray producing novae. Over three years of multi-band VLA radio observations of the 2010 nova V1723 Aql show that shocks between fast and slow…

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