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We present a multi-wavelength study of the symbiotic recurrent nova (RN) T Coronae Borealis (T CrB) using Swift Burst Alert Telescope (BAT) / X-Ray Telescope (XRT) / UltraViolet Optical Telescope (UVOT) and American Association of Variable…

High Energy Astrophysical Phenomena · Physics 2025-12-23 Songpeng Pei , Xiaowan Zhang , Renzhi Su , Yongzhi Cai , Ziwei Ou , Qiang Li , Xiaoqin Ren , Taozhi Yang , Mingyue Li

The current $super-active$ state of the recurrent nova T CrB has been observed with unprecedented detail. Previously published observations provide strong evidence that this state is due to an enhancement of the flow of material through the…

Solar and Stellar Astrophysics · Physics 2019-08-07 G. J. M. Luna , T. Nelson , K. Mukai , J. L. Sokoloski

As the recurrent nova T Coronae Borealis (T CrB) approaches its next predicted thermonuclear eruption, it is currently exhibiting a "super-active state" (SAS) characterized by enhanced multiwavelength emission similar to the behavior…

High Energy Astrophysical Phenomena · Physics 2026-01-23 G. J. M. Luna , N. P. M. Kuin , K. Mukai , J. L. Sokoloski , K. Page , J. P. Osborne

T~Coronae Borealis is the nearest symbiotic recurrent nova. Twice in the last two centuries, in 1866 and 1946, the accreted material ignited on the surface of the white dwarf via runaway thermonuclear fusion reactions and produced a nova…

Solar and Stellar Astrophysics · Physics 2025-08-06 Wagner Schlindwein , Raymundo Baptista , Gerardo Juan Manuel Luna

We obtained radio observations of the symbiotic binary and known recurrent nova T Coronae Borealis following a period of increased activity in the optical and X-ray bands. A comparison of our observations with those made prior to 2015…

T Corona Borealis (T CrB) is a symbiotic recurrent nova with an $\simeq 80$ yr recurrence interval, the eruptions of which occur on top of a $\simeq 15$ yr long high-brightness state. We show that the high-brightness state is best explained…

Solar and Stellar Astrophysics · Physics 2026-04-06 Raymundo Baptista , Wagner Schlindwein , Gerardo J. M. Luna

T Coronae Borealis (T CrB) is a symbiotic recurrent nova with eruptions in 1866 and 1946. Mounting evidence suggests an imminent outburst, offering a rare opportunity to observe a nearby nova in detail. We constrain the circumbinary medium…

High Energy Astrophysical Phenomena · Physics 2026-01-14 S. Orlando , L. Chomiuk , J. Drake , M. Miceli , F. Bocchino , O. Petruk

A century or less separates the thermonuclear-powered eruptions of recurrent novae in the hydrogen-rich envelopes of massive white dwarfs. The colliding ejecta of successive recurrent nova events are predicted to always generate very large…

T CrB is a symbiotic recurrent nova known to exhibit active phases, characterised by apparent increases in the hot component temperature and the appearance of flickering, i.e. changes in the observed flux on the time-scale of minutes.…

Solar and Stellar Astrophysics · Physics 2016-08-31 Krystian Ilkiewicz , Joanna Mikolajewska , Kiril Stoyanov , Antonios Manousakis , Brent Miszalski

We present the analysis of publicly available NuSTAR, Suzaku and XMM-Newton observations of the symbiotic recurrent nova T CrB covering the 2006.77-2022.66 yr period. The X-ray spectra are analysed by adopting a model that includes a…

High Energy Astrophysical Phenomena · Physics 2024-07-09 Jesús A. Toalá , Omaira González-Martín , Andrea Sacchi , Diego A. Vásquez-Torres

The results of photometric and spectral observations of T CrB obtained in a wide range of wavelengths in 2011-2023 are presented. We use the near-IR light curves to determine a new ephemeris $JD_{min} = 2455828.9 + 227.55 \times E$ for the…

T CrB is among the brightest novae. It is recurrent with outbursts happening approximately every 80 years. The next outburst is imminent, expected in 2025. The T CrB binary consists of an M4 III red giant (RG) secondary and a white dwarf…

T Coronae Borealis (T CrB) is a symbiotic recurrent nova (RN) that exhibits both nova eruptions and long-term active phases resembling superoutbursts and normal outbursts. Motivated by proposed connections between these events and the…

High Energy Astrophysical Phenomena · Physics 2026-05-21 Songpeng Pei , Xiaowan Zhang , Renzhi Su , Yongzhi Cai , Ziwei Ou , Qiang Li , Xiaoqin Ren , Yu Liu , Taozhi Yang

T Coronae Borealis (T CrB) is a symbiotic recurrent nova with an 80-year recurrence interval whose next eruption is imminent. We aim to resolve the accretion mechanism of the binary system governing the mass transfer during its super-active…

Solar and Stellar Astrophysics · Physics 2025-02-05 L. Planquart , A. Jorissen , H. Van Winckel

T Coronae Borealis (T CrB) is a nearby recurrent nova expected to erupt in the near future, offering a unique opportunity to study particle acceleration and high-energy emission from novae in real time. We investigate the production of…

High Energy Astrophysical Phenomena · Physics 2026-03-17 O. Petruk , T. Kuzyo , S. Orlando , L. Chomiuk , F. Bocchino , M. Miceli , S. Ustamujic

Nova shocks behave like scaled-down supernova remnant shocks with a lifetime of only a few weeks or months, thereby providing a unique opportunity to study the dynamics of non-relativistic shocks as well as the shock acceleration physics.…

High Energy Astrophysical Phenomena · Physics 2024-08-06 Jian-He Zheng , Hai-Ming Zhang , Ruo-Yu Liu , Min Zha , Xiang-Yu Wang

We present an analysis of the XMM-Newton observations of the symbiotic recurrent nova T CrB, obtained during its active phase that started in 2015. The XMM-Newton spectra of T CrB have two prominent components: a soft one (0.2 - 0.6 keV),…

High Energy Astrophysical Phenomena · Physics 2019-09-25 Svetozar A. Zhekov , Toma V. Tomov

T Coronae Borealis (T CrB) is one of the eleven known recurrent novae in our Galaxy. It was observed in outburst in 1866 and 1946, with additional likely eruptions recorded in 1217 and 1787. Given its predicted recurrence period of…

Solar and Stellar Astrophysics · Physics 2026-01-23 Jordi Jose , Margarita Hernanz

We present Suzaku X-ray observations of the recurrent nova T CrB in quiescence. T CrB is the first recurrent nova to be detected in the hard-X-ray band (E ~ 40.0 keV) during quiescence. The X-ray spectrum is consistent with cooling-flow…

Astrophysics · Physics 2007-11-06 Gerardo J. M. Luna , Jennifer L. Sokoloski , Koji Mukai

Compared to mass transfer in cataclysmic variables, the nature of accretion in symbiotic binaries in which red giants transfer material to white dwarfs (WDs) has been difficult to uncover. The accretion flows in a symbiotic binary are most…

Solar and Stellar Astrophysics · Physics 2018-09-11 G. J. M. Luna , K. Mukai , J. L. Sokoloski , A. B. Lucy , G. Cusumano , A. Segreto , M. Jaque Arancibia , N. E. Nuñez , R. E. Puebla , T. Nelson , F. Walter
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