Minutes-duration Optical Flares with Supernova Luminosities

Abstract

In recent years, certain luminous extragalactic optical transients have been observed to last only a few days. Their short observed duration implies a different powering mechanism from the most common luminous extragalactic transients (supernovae) whose timescale is weeks. Some short-duration transients, most notably AT2018cow, display blue optical colours and bright radio and X-ray emission. Several AT2018cow-like transients have shown hints of a long-lived embedded energy source, such as X-ray variability, prolonged ultraviolet emission, a tentative X-ray quasiperiodic oscillation, and large energies coupled to fast (but subrelativistic) radio-emitting ejecta. Here we report observations of minutes-duration optical flares in the aftermath of an AT2018cow-like transient, AT2022tsd (the "Tasmanian Devil"). The flares occur over a period of months, are highly energetic, and are likely nonthermal, implying that they arise from a near-relativistic outflow or jet. Our observations confirm that in some AT2018cow-like transients the embedded energy source is a compact object, either a magnetar or an accreting black hole.

arXiv comment79 pages, 3 figures (main text) + 7 figures (extended data) + 2 figures (supplementary information). Published online in Nature on 15 November 2023

References in corpus (137)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• Galactic Stellar and Substellar Initial Mass Function
• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• The Dust Content and Opacity of Actively Star-Forming Galaxies
• The Swift X-ray Telescope
• dynesty: A Dynamic Nested Sampling Package for Estimating Bayesian Posteriors and Evidences
• The Zwicky Transient Facility: System Overview, Performance, and First Results
• The Swift Ultra-Violet/Optical Telescope
• Discovery of the peculiar supernova 1998bw in the error box of GRB980425
• The propagation of uncertainties in stellar population synthesis modeling I: The relevance of uncertain aspects of stellar evolution and the IMF to the derived physical properties of galaxies
• Methods and results of an automatic analysis of a complete sample of Swift-XRT observations of GRBs
• MILES: A Medium resolution INT Library of Empirical Spectra
• The Zwicky Transient Facility: Data Processing, Products, and Archive
• ATLAS: A High-Cadence All-Sky Survey System
• The Pan-STARRS1 Photometric System
• The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. II. UV, Optical, and Near-IR Light Curves and Comparison to Kilonova Models
• The Physics of Gamma-Ray Bursts and Relativistic Jets
• An online repository of Swift/XRT light curves of GRBs
• The Zwicky Transient Facility: Science Objectives
• Light Curves of the Neutron Star Merger GW170817/SSS17a: Implications for R-Process Nucleosynthesis
• Illuminating Gravitational Waves: A Concordant Picture of Photons from a Neutron Star Merger
• Calibration of X-ray absorption in our Galaxy
• The shock break-out of GRB 060218/SN 2006aj
• Stellar Population Inference with Prospector
• The Pan-STARRS1 Database and Data Products
• Extrapolation of Galactic Dust Emission at 100 Microns to CMBR Frequencies Using FIRAS
• Discovery of the Onset of Rapid Accretion by a Dormant Massive Black Hole
• The Expanded Very Large Array -- a New Telescope for New Science
• The Birth of a Relativistic Outflow in the Unusual γ-ray Transient Swift J164449.3+573451
• Nebular Continuum and Line Emission in Stellar Population Synthesis Models
• Swift J2058.4+0516: Discovery of a Possible Second Relativistic Tidal Disruption Flare?
• Seventeen Tidal Disruption Events from the First Half of ZTF Survey Observations: Entering a New Era of Population Studies
• Rapidly-Evolving and Luminous Transients from Pan-STARRS1
• An extremely luminous panchromatic outburst from the nucleus of a distant galaxy
• PESSTO : survey description and products from the first data release by the Public ESO Spectroscopic Survey of Transient Objects
• Design and operation of the ATLAS Transient Science Server
• The Afterglows of Swift-era Gamma-Ray Bursts. I. Comparing pre-Swift and Swift era Long/Soft (Type II) GRB Optical Afterglows
• ULTRACAM: an ultra-fast, triple-beam CCD camera for high-speed astrophysics
• A Relativistic Type Ibc Supernova Without a Detected Gamma-ray Burst
• The Zwicky Transient Facility: Observing System
• The Observer's Guide to the Gamma-Ray Burst-Supernova Connection
• The Zwicky Transient Facility Bright Transient Survey. II. A Public Statistical Sample for Exploring Supernova Demographics
• Exoplanet population inference and the abundance of Earth analogs from noisy, incomplete catalogs
• An embedded X-ray source shines through the aspherical AT2018cow: revealing the inner workings of the most luminous fast-evolving optical transients
• Proper image subtraction - optimal transient detection, photometry and hypothesis testing
• The SED Machine: a robotic spectrograph for fast transient classification
• Fully-Automated Reduction of Longslit Spectroscopy with the Low Resolution Imaging Spectrometer at Keck Observatory
• The Cow: discovery of a luminous, hot and rapidly evolving transient
• The Fast, Luminous Ultraviolet Transient AT2018cow: Extreme Supernova, or Disruption of a Star by an Intermediate-Mass Black Hole?
• The Afterglow of GRB 130427A from 1 to 10^16 GHz
• An X-ray, IR, and Submillimeter Flare of Sagittarius A*
• Discovery of an outflow from radio observations of the tidal disruption event ASASSN-14li
• The Automatic Learning for the Rapid Classification of Events (ALeRCE) Alert Broker
• The 2010 very high energy gamma-ray flare & 10 years of multi-wavelength observations of M 87
• The simultaneous spectrum of Sgr A* from 20cm to 1mm and the nature of the mm-excess
• Real-bogus classification for the Zwicky Transient Facility using deep learning
• Galaxy And Mass Assembly (GAMA): Accurate Panchromatic Photometry from Optical Priors using LAMBDAR
• Rapidly evolving transients in the Dark Energy Survey
• The Radio and X-ray Luminous SN 2003bg and the Circumstellar Density Variations Around Radio Supernovae
• Long Gamma-Ray Transients from Collapsars
• Rapidly Rising Transients in the Supernova - Superluminous Supernova Gap
• AT2018cow: a luminous millimeter transient
• The Zwicky Transient Facility Alert Distribution System
• A very luminous jet from the disruption of a star by a massive black hole
• The Palomar Transient Factory Core-Collapse Supernova Host-Galaxy Sample. I. Host-Galaxy Distribution Functions and Environment-Dependence of CCSNe
• The Koala: A Fast Blue Optical Transient with Luminous Radio Emission from a Starburst Dwarf Galaxy at $z=0.27$
• Rapid infrared flares in GRS 1915+105 : evidence for infrared synchrotron emission
• A mildly relativistic outflow from the energetic, fast-rising blue optical transient CSS161010 in a dwarf galaxy
• What are Published X-ray lightcurves telling us about Young Supernova Expansion?
• A Morphological Classification Model to Identify Unresolved PanSTARRS1 Sources: Application in the ZTF Real-Time Pipeline
• Black Hole Accretion Discs and Luminous Transients in Failed Supernovae from Non-Rotating Supergiants
• The signature of the central engine in the weakest relativistic explosions: GRB100316D
• Repeating tidal disruptions in GSN 069: Long-term evolution and constraints on quasi-periodic eruptions' models
• Long Term Radio Monitoring of SN 1993J
• A Search for Extragalactic Fast Blue Optical Transients in ZTF and the Rate of AT2018cow-like Transients
• A multi-wavelength investigation of the radio-loud supernova PTF11qcj and its circumstellar environment
• A bright gamma-ray flare interpreted as a giant magnetar flare in NGC 253
• Swift spectra of AT2018cow: A White Dwarf Tidal Disruption Event?
• Spectral evidence for a powerful compact jet from XTE J1118+480
• The Radio and X-ray Luminous Type Ibc Supernova 2003L
• A data science platform to enable time-domain astronomy
• An Early & Comprehensive Millimeter and Centimeter Wave and X-ray Study of Supernova 2011dh: A Non-Equipartition Blastwave Expanding into A Massive Stellar Wind
• Chandra Observations of the X-ray Environs of SN 1998bw/GRB 980425
• Theoretical Models of Optical Transients. I. A Broad Exploration of the Duration-Luminosity Phase Space
• ULTRASPEC: a high-speed imaging photometer on the 2.4-m Thai National Telescope
• Millimeter Observations of GRB 030329: Continued Evidence for a Two-Component Jet
• Giant Flare in SGR 1806-20 and Its Compton Reflection from the Moon
• Swift 1644+57: The Longest Gamma-ray Burst?
• X-ray Swift observations of SN 2018cow
• CHIMERA: a wide-field, multi-color, high-speed photometer at the prime focus of the Hale telescope
• Measuring fundamental jet properties with multi-wavelength fast timing of the black hole X-ray binary MAXI J1820+070
• Core-collapse, superluminous, and gamma-ray burst supernova host galaxy populations at low redshift: the importance of dwarf and starbursting galaxies
• Radio and X-ray observations of the luminous Fast Blue Optical Transient AT2020xnd
• SN 2007bg: The Complex Circumstellar Environment Around One of the Most Radio-Luminous Broad-Lined Type Ic Supernovae
• PS1-STRM: Neural network source classification and photometric redshift catalogue for PS1 $3\pi$ DR1
• The Konus-Wind catalog of gamma-ray bursts with known redshifts. II. Waiting mode bursts simultaneously detected by Swift/BAT
• Luminous Millimeter, Radio, and X-ray Emission from ZTF20acigmel (AT2020xnd)
• SN2020bvc: a Broad-lined Type Ic Supernova with a Double-peaked Optical Light Curve and a Luminous X-ray and Radio Counterpart
• A Reverse Shock in GRB 181201A
• GRB171205A/SN2017iuk: A local low-luminosity gamma-ray burst
• Evidence for a Compact Object in the Aftermath of the Extra-Galactic Transient AT2018cow
• First ALMA Light Curve Constrains Refreshed Reverse Shocks and Jet Magnetization in GRB 161219B
• Shocked jets in CCSNe can power the zoo of fast blue optical transients
• Optical and infrared flares from a transient Galactic soft gamma-ray repeater
• Thermal Electrons in Mildly-relativistic Synchrotron Blast-waves
• A transient radio source consistent with a merger-triggered core collapse supernova
• GRB070610 : A Curious Galactic Transient
• The Definitive X-ray Light Curve of Swift J164449.3+573451
• The Large Array Survey Telescope -- System Overview and Performances
• A Blast from the Pasture: Studying the environment of AT 2018cow with MUSE
• uGMRT observations of a Fast and Blue Optical Transient -- AT 2018cow
• X-ray and optical variability of the ultraluminous X-ray source NGC 1313 X-2
• Spectral atlas of dwarf novae in outburst
• A comparative study of the strength of flickering in cataclysmic variables
• The final months of massive star evolution from the circumstellar environment around SN Ic 2020oi
• Late evolution of the X-ray afterglow of GRB 030329
• The Fall and the Rise of X-rays from Dwarf Novae in Outburst: RXTE Observations of VW Hydri and WW Ceti
• Chandra, HST/STIS, NICER, Swift, and TESS Detail the Flare Evolution of the Repeating Nuclear Transient ASASSN-14ko
• Catching jetted tidal disruption events early in millimetre
• The case for jets in cataclysmic variables
• Spectroscopic properties of the dwarf nova-type cataclysmic variables observed by LAMOST
• A code for robust astrometric solution of astronomical images
• The Large Array Survey Telescope -- Science Goals
• Late-time Hubble Space Telescope Observations of AT 2018cow. II. Evolution of a UV bright Underlying Source 2--4 Yr Post-discovery
• A flash of polarized optical light points to an aspherical "cow"
• Comprehensive coverage of particle acceleration and kinetic feedback from the stellar mass black hole V404 Cygni
• A possible 250-second X-ray quasi-periodicity in the fast blue optical transient AT2018cow
• Cataclysmic Variables in the Second Year of the Zwicky Transient Facility
• Late-Time Evolution and Modeling of the Off-Axis Gamma-ray Burst Candidate FIRST J141918.9+394036
• MUSSES2020J: The Earliest Discovery of a Fast Blue Ultraluminous Transient at Redshift 1.063
• Multi-wavelength flare observations of the blazar S5 1803+784
• The Luminosity Phase Space of Galactic and Extragalactic X-ray Transients Out to Intermediate Redshifts
• Late-time Hubble Space Telescope Observations of AT 2018cow. I. Further Constraints on the Fading Prompt Emission and Thermal Properties 50--60 Days Post-discovery
• Real-time Discovery of AT2020xnd: A Fast, Luminous Ultraviolet Transient with Minimal Radioactive Ejecta
• Unprecedented X-ray Emission from the Fast Blue Optical Transient AT2022tsd
• The X-ray and Radio Loud Fast Blue Optical Transient AT2020mrf: Implications for an Emerging Class of Engine-Driven Massive Star Explosions
• India's first robotic eye for time domain astrophysics: the GROWTH-India telescope

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• The Emission and Suppression of Line Features in Luminous Transients
• Luminous Fast Blue Optical Transients as "Failed" Gravitational-wave Sources: Helium Core$-$Black Hole Mergers Following Delayed Dynamical Instability
• Unveiling the nature of the Einstein Probe transient EP 241021a
• The spectra of a radiative reprocessing outflow model for fast blue optical transients
• 21 years of Astronomy at Warwick: celebrating the legacy of Prof. Tom Marsh
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