Luminous Red Novae: population models and future prospects

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Luminous Red Novae : population models and future prospects. / Howitt, George; Stevenson, Simon; Vigna-Gomez, Alejandro; Justham, Stephen; Ivanova, Natasha; Woods, Tyrone E.; Neijssel, Coenraad J.; Mandel, Ilya.

In: Monthly Notices of the Royal Astronomical Society, Vol. 492, No. 3, 03.2020, p. 3229-3240.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Howitt, G, Stevenson, S, Vigna-Gomez, A, Justham, S, Ivanova, N, Woods, TE, Neijssel, CJ & Mandel, I 2020, 'Luminous Red Novae: population models and future prospects', Monthly Notices of the Royal Astronomical Society, vol. 492, no. 3, pp. 3229-3240. https://doi.org/10.1093/mnras/stz3542

APA

Howitt, G., Stevenson, S., Vigna-Gomez, A., Justham, S., Ivanova, N., Woods, T. E., Neijssel, C. J., & Mandel, I. (2020). Luminous Red Novae: population models and future prospects. Monthly Notices of the Royal Astronomical Society, 492(3), 3229-3240. https://doi.org/10.1093/mnras/stz3542

Vancouver

Howitt G, Stevenson S, Vigna-Gomez A, Justham S, Ivanova N, Woods TE et al. Luminous Red Novae: population models and future prospects. Monthly Notices of the Royal Astronomical Society. 2020 Mar;492(3):3229-3240. https://doi.org/10.1093/mnras/stz3542

Author

Howitt, George ; Stevenson, Simon ; Vigna-Gomez, Alejandro ; Justham, Stephen ; Ivanova, Natasha ; Woods, Tyrone E. ; Neijssel, Coenraad J. ; Mandel, Ilya. / Luminous Red Novae : population models and future prospects. In: Monthly Notices of the Royal Astronomical Society. 2020 ; Vol. 492, No. 3. pp. 3229-3240.

Bibtex

@article{bb566ed380d14e0fb63c87702b603730,
title = "Luminous Red Novae: population models and future prospects",
abstract = "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 [he impact of a range of assumptions about the physics of common-envelope evolution on the properties of LRNe. In particular, we investigate the influence of various models for the energetics of LRNe on the expected event rate and light curve characteristics, and compare with the existing sample. We find that the Galactic rate of LRNe is 0.2 yr-1, in agreement with the observed rate. In our models, the luminosity function of Galactic LRNe covers multiple decades in luminosity and is dominated by signals from stellar mergers, consistent with observational constraints from iPTF and the Galactic sample of LRNe. We discuss how observations of the brightest LRNe may provide indirect evidence for the existence of massive (>40 Mo) red supergiants. Such LRNe could be markers along the evolutionary pathway leading to the formation of double compact objects. We make predictions for the population of LRNe observable in future transient surveys with the Large Synoptic Survey Telescope and the Zwicky Transient Facility. In all plausible circumstances, we predict a selection-limited observable population dominated by bright, long-duration events caused by common envelope ejections. We show that the Large Synoptic Survey Telescope will observe 20-750 LRNe per year, quickly constraining the luminosity iction of LRNe and probing the physics of common-envelope events.",
keywords = "black hole physics, gravitational waves, stars: evolution, COMMON ENVELOPE EVOLUTION, BINDING-ENERGY PARAMETER, MASS-TRANSFER, NGC 300, OPTICAL TRANSIENT, LIGHT CURVES, SN 2008S, STELLAR, STARS, DISCOVERY",
author = "George Howitt and Simon Stevenson and Alejandro Vigna-Gomez and Stephen Justham and Natasha Ivanova and Woods, {Tyrone E.} and Neijssel, {Coenraad J.} and Ilya Mandel",
year = "2020",
month = mar,
doi = "10.1093/mnras/stz3542",
language = "English",
volume = "492",
pages = "3229--3240",
journal = "Royal Astronomical Society. Monthly Notices",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "3",

}

RIS

TY - JOUR

T1 - Luminous Red Novae

T2 - population models and future prospects

AU - Howitt, George

AU - Stevenson, Simon

AU - Vigna-Gomez, Alejandro

AU - Justham, Stephen

AU - Ivanova, Natasha

AU - Woods, Tyrone E.

AU - Neijssel, Coenraad J.

AU - Mandel, Ilya

PY - 2020/3

Y1 - 2020/3

N2 - 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 [he impact of a range of assumptions about the physics of common-envelope evolution on the properties of LRNe. In particular, we investigate the influence of various models for the energetics of LRNe on the expected event rate and light curve characteristics, and compare with the existing sample. We find that the Galactic rate of LRNe is 0.2 yr-1, in agreement with the observed rate. In our models, the luminosity function of Galactic LRNe covers multiple decades in luminosity and is dominated by signals from stellar mergers, consistent with observational constraints from iPTF and the Galactic sample of LRNe. We discuss how observations of the brightest LRNe may provide indirect evidence for the existence of massive (>40 Mo) red supergiants. Such LRNe could be markers along the evolutionary pathway leading to the formation of double compact objects. We make predictions for the population of LRNe observable in future transient surveys with the Large Synoptic Survey Telescope and the Zwicky Transient Facility. In all plausible circumstances, we predict a selection-limited observable population dominated by bright, long-duration events caused by common envelope ejections. We show that the Large Synoptic Survey Telescope will observe 20-750 LRNe per year, quickly constraining the luminosity iction of LRNe and probing the physics of common-envelope events.

AB - 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 [he impact of a range of assumptions about the physics of common-envelope evolution on the properties of LRNe. In particular, we investigate the influence of various models for the energetics of LRNe on the expected event rate and light curve characteristics, and compare with the existing sample. We find that the Galactic rate of LRNe is 0.2 yr-1, in agreement with the observed rate. In our models, the luminosity function of Galactic LRNe covers multiple decades in luminosity and is dominated by signals from stellar mergers, consistent with observational constraints from iPTF and the Galactic sample of LRNe. We discuss how observations of the brightest LRNe may provide indirect evidence for the existence of massive (>40 Mo) red supergiants. Such LRNe could be markers along the evolutionary pathway leading to the formation of double compact objects. We make predictions for the population of LRNe observable in future transient surveys with the Large Synoptic Survey Telescope and the Zwicky Transient Facility. In all plausible circumstances, we predict a selection-limited observable population dominated by bright, long-duration events caused by common envelope ejections. We show that the Large Synoptic Survey Telescope will observe 20-750 LRNe per year, quickly constraining the luminosity iction of LRNe and probing the physics of common-envelope events.

KW - black hole physics

KW - gravitational waves

KW - stars: evolution

KW - COMMON ENVELOPE EVOLUTION

KW - BINDING-ENERGY PARAMETER

KW - MASS-TRANSFER

KW - NGC 300

KW - OPTICAL TRANSIENT

KW - LIGHT CURVES

KW - SN 2008S

KW - STELLAR

KW - STARS

KW - DISCOVERY

U2 - 10.1093/mnras/stz3542

DO - 10.1093/mnras/stz3542

M3 - Journal article

VL - 492

SP - 3229

EP - 3240

JO - Royal Astronomical Society. Monthly Notices

JF - Royal Astronomical Society. Monthly Notices

SN - 0035-8711

IS - 3

ER -

ID: 247938407