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Related papers: Is the Symbiotic Recurrent Nova T CrB Late? Recent…

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T CrB is a symbiotic recurrent nova that exhibits quiescent and active phases between its classical nova eruptions. The statistical properties of these active phases have been poorly studied thus far. Because of that their nature remained…

Solar and Stellar Astrophysics · Physics 2023-08-16 Krystian Ilkiewicz , Joanna Mikolajewska , Kiril A. Stoyanov

T CrB is one of the most-famous and brightest novae known, and is a recurrent nova with prior eruptions in 1866 and 1946 that peak at $V$=2.0. I have constructed light curves spanning 1842--2022 with 213,730 magnitudes, where the $B$ and…

Solar and Stellar Astrophysics · Physics 2023-03-29 Bradley E. Schaefer

Estimates of the accretion rate in symbiotic recurrent novae (RNe) often fall short of theoretical expectations by orders of magnitude. This apparent discrepancy can be resolved if the accumulation of mass by the white dwarf (WD) is highly…

Solar and Stellar Astrophysics · Physics 2020-10-14 Gerardo J. M. Luna , J. L. Sokoloski , K. Mukai , P. Kuin

Context: T CrB (NOVA CrB 1946) is a famous recurrent nova with a recurrence timescale of 80 years. Aims: We aim to estimate the colours, luminosity, and mass-accretion rate for T CrB (NOVA CrB 1946) during and after the superactive state.…

Solar and Stellar Astrophysics · Physics 2023-12-08 R. Zamanov , S. Boeva , G. Y. Latev , E. Semkov , M. Minev , A. Kostov , M. F. Bode , V. Marchev , D. Marchev

T CrB is a symbiotic star that experiences nova outbursts every $\sim$ 80~yr. The next, long-anticipated nova outburst should occur during the 2024-2026 period. Here, we present results of high-resolution optical spectroscopy of T CrB in…

Solar and Stellar Astrophysics · Physics 2024-06-05 K. A. Stoyanov , G. J. M. Luna , R. K. Zamanov , K. Ilkiewicz , Y. M. Nikolov , M. Moyseev , M. Minev , A. Kurtenkov , S. Y. Stefanov

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…

The famous recurrent nova (RN) T Coronae Borealis (T CrB) has had observed eruptions peaking at a visual magnitude of 2.0 in the years 1866 and 1946, while a third eruption is now expected for the year 2024.4+-0.3. Each RN has very similar…

Solar and Stellar Astrophysics · Physics 2023-12-05 Bradley E. Schaefer

T CrB is a nearby symbiotic binary and a recurrent nova with a period of ca. 80 years. The next eruption is expected to take place in 2025 or 2026. We present our pre-eruption observations made in ALMA frequency Bands 1, 3, 4, 6, 7, and 8…

Solar and Stellar Astrophysics · Physics 2025-11-05 D. Petry , G. Sala , I. El Mellah , T. Stanke , J. Greiner

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 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 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

The recurrent nova T CrB has entered in 2015 a phase of unprecedented high activity. To trace something equivalent, it is necessary to go back to 1938, before the last nova eruption in 1946. The 2015 super-active state is characterized by:…

Solar and Stellar Astrophysics · Physics 2016-03-16 U. Munari , S. Dallaporta , G. Cherini

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

The symbiotic recurrent nova T CrB erupted for the second and last recorded time in 1946. Following the outburst, the accretion rate onto its WD has remained rather low with only occasional and minor flaring episodes, until in late 2014 it…

Solar and Stellar Astrophysics · Physics 2023-07-04 U. Munari

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

The recurrent nova T CrB was one of the first well observed nova eruptions in 1866, and 80 years later it erupted again in 1946. Just after the 1866 eruption, Sir John Herschel reported to the Monthly Notices that he had seen the same star…

Solar and Stellar Astrophysics · Physics 2013-07-01 Bradley E. Schaefer

T Coronae Borealis (TCrB) is a recurrent nova (RN) with recorded outbursts in 1866, and 1946 and possible outbursts in 1217 and 1787. It is predicted to explode again in 2025 or 2026 based on multiple observational studies. The system…

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

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

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
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