Luminous red novae: Stellar mergers or giant eruptions?
A Pastorello, E Mason, S Taubenberger… - Astronomy & …, 2019 - aanda.org
We present extensive datasets for a class of intermediate-luminosity optical transients
known as luminous red novae. They show double-peaked light curves, with an initial rapid …
known as luminous red novae. They show double-peaked light curves, with an initial rapid …
Planetary nebulae: observational properties, mimics and diagnostics
The total number of true, likely and possible planetary nebulae (PN) now known in the Milky
Way is nearly 3000, double the number known a decade ago. The new discoveries are a …
Way is nearly 3000, double the number known a decade ago. The new discoveries are a …
Astronomical detection of radioactive molecule 26AlF in the remnant of an ancient explosion
Decades ago, γ-ray observatories identified diffuse Galactic emission at 1.809 MeV,–
originating from β+ decays of an isotope of aluminium, 26Al, that has a mean lifetime of 1.04 …
originating from β+ decays of an isotope of aluminium, 26Al, that has a mean lifetime of 1.04 …
Transients from the Cataclysmic Deaths of Cataclysmic Variables
We explore the observational appearance of the merger of a low-mass star with a white
dwarf (WD) binary companion. We are motivated by recent work finding that multiple …
dwarf (WD) binary companion. We are motivated by recent work finding that multiple …
Molecular remnant of Nova 1670 (CK Vulpeculae)-II. A three-dimensional view of the gas distribution and velocity field
T Kamiński, W Steffen, V Bujarrabal, R Tylenda… - Astronomy & …, 2021 - aanda.org
CK Vul is the remnant of an energetic eruption known as Nova 1670 that is thought to be
caused by a stellar merger. The remnant is composed of (1) a large hourglass nebula of …
caused by a stellar merger. The remnant is composed of (1) a large hourglass nebula of …
Operation of the jet feedback mechanism (JFM) in intermediate luminosity optical transients (ILOTs)
We follow the premise that most intermediate luminosity optical transients (ILOTs) are
powered by rapid mass accretion onto a main sequence star, and study the effects of jets …
powered by rapid mass accretion onto a main sequence star, and study the effects of jets …
Nuclear ashes and outflow in the eruptive star Nova Vul 1670
CK Vulpeculae was observed in outburst in 1670–1672 (ref.), but no counterpart was seen
until 1982, when a bipolar nebula was found at its location,,. Historically, CK Vul has been …
until 1982, when a bipolar nebula was found at its location,,. Historically, CK Vul has been …
Novae With Long-Lasting Supersoft Emission That Drive a High Accretion Rate
BE Schaefer, AC Collazzi - The Astronomical Journal, 2010 - iopscience.iop.org
We identify a new class of novae characterized by the post-eruption quiescent light curve
being more than roughly a factor of 10 brighter than the pre-eruption light curve. Eight novae …
being more than roughly a factor of 10 brighter than the pre-eruption light curve. Eight novae …
Organic molecules, ions, and rare isotopologues in the remnant of the stellar-merger candidate, CK Vulpeculae (Nova 1670)
Context. CK Vulpeculae (CK Vul) is an enigmatic star whose outburst was observed in 1670–
72. A stellar-merger event was proposed to explain its ancient eruption. Aims. We aim to …
72. A stellar-merger event was proposed to explain its ancient eruption. Aims. We aim to …
Near-infrared Spectroscopy of CK Vulpeculae: Revealing a Remarkably Powerful Blast from the Past
DPK Banerjee, TR Geballe, A Evans… - The Astrophysical …, 2020 - iopscience.iop.org
Abstract CK Vulpeculae (CK Vul), which erupted in AD 1670–71, was long considered to be
a nova outburst; however, recent observations have required that alternative scenarios be …
a nova outburst; however, recent observations have required that alternative scenarios be …