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Related papers: More luminous red novae that require jets

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By comparing photon diffusion time with gas outflow time, I argue that a large fraction of the energy carried by the jets during the grazing envelope evolution (GEE) might end in radiation, hence leading to an intermediate luminosity…

Solar and Stellar Astrophysics · Physics 2016-03-16 Noam Soker

I compared with each other and with observations three energy sources to power intermediate luminosity optical transients (ILOTs) and conclude that only jets can power bright ILOTs with rapidly rising lightcurves. I present an expression…

Solar and Stellar Astrophysics · Physics 2023-08-31 Noam Soker

A class of optical transients known as Luminous Red Novae (LRNe) have recently been associated with mass ejections from binary stars undergoing common-envelope evolution. We use the population synthesis code COMPAS to explore the impact of…

We apply the jet-powered ILOT scenario to two recently studied intermediate luminosity optical transients (ILOTs), and find the relevant shell mass and jets' energy that might account for the outbursts of these ILOTs. In the jet-powered…

High Energy Astrophysical Phenomena · Physics 2021-06-02 Noam Soker , Noa Kaplan

We propose that two recent intermediate luminosity optical transients (ILOTs), M31LRN 2015 and SN 2015bh (SNHunt 275; PTF 13efv) can be accounted for with a stellar binary model involving mass transfer that leads to the launching of jets.…

Solar and Stellar Astrophysics · Physics 2016-09-07 Noam Soker , Amit Kashi

Luminous Red Novae (LRNe) are transients associated with mass ejection during stellar mergers and common envelope evolution (CEE). LRNe have the potential to illuminate the poorly understood phases of binary evolution leading up to the CEE,…

Solar and Stellar Astrophysics · Physics 2025-12-01 Anthony Kirilov , Diego Calderón , Ondřej Pejcha , Paul C. Duffell

We follow the evolution of four observed exoplanets to the time when the respective parent star of each planet evolves off the main sequence and engulfs its planet to start a common envelope evolution (CEE), concluding that in each case…

Earth and Planetary Astrophysics · Physics 2022-01-19 Omer Gurevich , Ealeal Bear , Noam Soker

We present extensive datasets for a class of intermediate-luminosity optical transients known as "luminous red novae" (LRNe). They show double-peaked light curves, with an initial rapid luminosity rise to a blue peak (at -13 to -15 mag),…

Luminous red novae (LRNe) are astrophysical transients believed to be caused by the partial ejection of a binary star's common envelope (CE) and the merger of its components. The formation of the CE is likely to occur during unstable mass…

Solar and Stellar Astrophysics · Physics 2022-10-04 Harry Addison , Nadejda Blagorodnova , Paul J. Groot , Nicolas Erasmus , David Jones , Orapeleng Mogawana

We present surprising similarities between some bipolar planetary nebulae (PNe) and eruptive objects with peak luminosity between novae and supernovae. The later group is termed ILOT for intermediate luminosity optical transients (other…

Solar and Stellar Astrophysics · Physics 2015-05-30 Noam Soker , Amit Kashi

I argue that the high percentage of PNe that are shaped by jets show that main sequence stars in binary systems can accrete mass at a high rate from an accretion disk and launch jets. Not only this allows jets to shape PNe, but this also…

Solar and Stellar Astrophysics · Physics 2020-02-12 Noam Soker

The process of unstable mass transfer in a stellar binary can result in either a complete merger of the stars or successful removal of the donor envelope leaving a surviving more compact binary. "Luminous red nova" (LRN) are the class of…

Solar and Stellar Astrophysics · Physics 2022-10-26 Tatsuya Matsumoto , Brian D. Metzger

We argue that transient systems with luminosity between novae and supernovae (SNe) are powered by gravitational energy of mass accreted onto, or a companion merges with, a main-sequence star. These transient events are termed…

Solar and Stellar Astrophysics · Physics 2011-07-19 Noam Soker , Amit Kashi

The Red Nova ZTF SLRN-2020 is the third transient event with properties that are compatible with the merger of a planet with a main sequence (or close to) star on a dynamical timescale. While the two first transient events occurred in young…

Solar and Stellar Astrophysics · Physics 2023-06-28 Noam Soker

More luminous than classical novae, but less luminous than Supernovae, lies the exotic stellar eruptions known as Intermediate luminosity optical transients (ILOTs). They are divided into a number of sub-groups depending on the erupting…

Solar and Stellar Astrophysics · Physics 2018-08-01 Amit Kashi

Red novae or luminous red novae are a class of optical transients that have emerged over the past two decades. They occupy an intermediate luminosity regime between classical novae and supernovae and are characterized by cool, slowly…

Solar and Stellar Astrophysics · Physics 2026-05-19 Tomasz Kaminski , Nadejda Blagorodnova

I examine images of 50 planetary nebulae (PNe) with observable post-common envelope evolution (CEE) binary central stars and find that jets are about 40 percent more common than dense equatorial outflows. Because, in some cases, energetic…

Solar and Stellar Astrophysics · Physics 2025-01-30 Noam Soker

I examine recent fittings of luminous supernovae (LSNe) with extra energy sources of magnetar and helium burning and find that in about half of these LSNe the fitting parameters have some problems. In some LSNe the total energy of these two…

High Energy Astrophysical Phenomena · Physics 2022-08-31 Noam Soker

A common-envelope (CE) phase occurs when a star engulfs its companion and is widely considered the primary channel for producing Luminous Red Novae (LRNe). In this study, we combine binary-population synthesis with stellar-evolution…

Luminous red novae (LRNe) are transients characterized by low luminosities and expansion velocities, and are associated with mergers or common envelope ejections in stellar binaries. Intermediate-luminosity red transients (ILRTs) are an…

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