Quasi-periodic pulsation detected in Lyman-alpha emission during solar flares
arXiv:2003.01877 · doi:10.3847/1538-4357/ab7cd1
Abstract
We investigated the quasi-periodic pulsation (QPP) in Lyman-alpha, X-ray and extreme-ultraviolet (EUV) emissions during two solar flares, i.e., an X-class (SOL2012-01-27T) and a C-class (SOL2016-02-08T). The full-disk Lyman-alpha and X-Ray flux during these solar flares were recorded by the EUV Sensor and X-Ray Sensor on board the Geostationary Operational Environmental Satellite. The °are regions were located from the EUV images measured by the Atmospheric Imaging Assembly. The QPP could be identified as a series of regular and periodic peaks in the light curves, and its quasi-periodicity was determined from the global wavelet and Fourier power spectra. A quasi-periodicity at about 3 minutes is detected during the impulsive phase of the X-class flare, which could be explained as the acoustic wave in the chromosphere (e.g., Milligan et al. 2017). Interestingly, a quasi-periodicity at roughly 1 minute is discovered during the entire evolutionary phases of solar flares, including the precursor, impulsive, and gradual phases. This is the first report of 1-minute QPP in the Lyman-alpha emission during solar flares, in particular during the flare precursor. It may be interpreted as a self-oscillatory regime of the magnetic reconnection, such as magnetic dripping.
arXiv comment21 pages, 7 figures, accepted for publication in The Astrophysical Journal
References in corpus (61)
- A simple test for periodic signals in red noise
- Radiative Hydrodynamic Models of the Optical and Ultraviolet Emission from Solar Flares
- Advances in Observing Various Coronal EUV Waves in the SDO Era and Their Seismological Applications (Invited Review)
- Modelling Quasi-Periodic Pulsations in Solar and Stellar Flares
- Persistent Doppler shift oscillations observed with HINODE/EIS in the solar corona: spectroscopic signatures of Alfvenic waves and recurring upflows
- Sympathetic Partial and Full Filament Eruptions Observed in One Solar Breakout Event
- Microflares and the Statistics of X-ray Flares
- Quasi-periodic pulsations in solar and stellar flares: an overview of recent results
- Direct Imaging by SDO AIA of Quasi-periodic Fast Propagating Waves of ~2000 km/s in the Low Solar Corona
- Nonlinear Fast Magnetoacoustic Wave Propagation in the Neighbourhood of a 2D magnetic X-point: Oscillatory Reconnection
- Periodic Acceleration of Electrons in the 1998 November 10 Solar Flare
- Global sausage oscillation of solar flare loops detected by the Interface Region Imaging Spectrograph
- The Radiated Energy Budget of Chromospheric Plasma in a Major Solar Flare Deduced From Multi-Wavelength Observations
- Quasi-periodic Slipping Magnetic Reconnection During an X-class Solar Flare Observed by the Solar Dynamics Observatory and Interface Region Imaging Spectrograph
- Soft X-ray Pulsations in Solar Flares
- A large-scale search for evidence of quasi-periodic pulsations in solar flares
- On The Fourier And Wavelet Analysis Of Coronal Time Series
- Observational Study Of the Quasi-Periodic Fast Propagating Magnetosonic Waves and the Associated Flare on 2011 May 30
- Quasi-periodic pulsations in solar and stellar flares: re-evaluating their nature in the context of power-law flare Fourier spectra
- Three-dimensional oscillatory magnetic reconnection
- Oscillatory processes in solar flares
- Evidence of thermal conduction suppression in a solar flaring loop by coronal seismology of slow-mode waves
- Observation of multiple sausage oscillations in cool postflare loop
- Persistent Quasi-Periodic Pulsations During a Large X-Class Solar Flare
- Time delays in quasi-periodic pulsations observed during the X2.2 solar flare on 2011 February 15
- Chromospheric Condensation and Quasi-periodic Pulsations in a Circular-ribbon Flare
- Microwave Quasi-periodic Pulsations in Multi-timescales Associated with a Solar Flare/CME Event
- Quasi-Periodic Pulsations in Solar Flares: new clues from the Fermi Gamma-Ray Burst Monitor
- Observations of Enhanced EUV Continua During An X-Class Solar Flare Using SDO/EVE
- Quasi-Periodic Pulsations during the Impulsive and Decay phases of an X-class Flare
- Observations of a Quasi-Periodic Fast Propagating Magnetosonic Wave in Multi-Wavelength and Its Interaction with Other Magnetic Structures
- Very Long-period Pulsations before the Onset of Solar Flares
- A quasi-periodic fast-propagating magnetosonic wave associated with the eruption of a magnetic flux rope
- Round-trip Slipping Motion of the Circular Flare Ribbon Evidenced in a Fan-spine Jet
- Quasi-Periodic Radio Bursts Associated with Fast-mode Waves near a Magnetic Null Point
- Detection of 3-Minute Oscillations in Full-Disk Ly Emission During A Solar Flare
- Quasi-periodic pulsations in the most powerful solar flare of Cycle 24
- A Compact Source for Quasi-Periodic Pulsation in an M-class Solar Flare
- Detection and Interpretation Of Long-Lived X-Ray Quasi-Periodic Pulsations in the X-Class Solar Flare On 2013 May 14
- Non-damping oscillations at flaring loops
- EUV Waves Driven by the Sudden Expansion of Transequatorial Loops Caused by Coronal Jets
- Quasi-periodic Fast Propagating Magnetoacoustic Waves during the Magnetic Reconnection Between Solar Coronal Loops
- Quasi-periodic pulsations of gamma-ray emissions from a solar flare on 2017 September 06
- Observations of a solar flare and filament eruption in Lyman alpha and X-rays
- Observations of quasi-periodic solar X-ray emission as a result of MHD oscillations in a system of multiple flare loops
- Oscillation of Newly Formed Loops After Magnetic Reconnection in the Solar Chromosphere
- First Detection of Solar Flare Emission in Middle-Ultraviolet Balmer Continuum
- Significance testing for quasi-periodic pulsations in solar and stellar flares
- Quasi-periodic pulsations with periods that change depending on whether the pulsations have thermal or nonthermal components
- Sun-as-a-Star Observation of Flares in Lyman α by the PROBA2/LYRA radiometer
- The relationship between hard X-ray pulse timings and the locations of footpoint sources during solar flares
- The Anomalous Temporal Behaviour of Broadband Ly Emission During Solar Flares From SDO/EVE
- Quasi-periodic pulsations with multiple periods in hard X-ray emission
- Study of multi-periodic coronal pulsations during an X-class solar flare
- Estimating red noise in quasi-periodic signals with MCMC-based Bayesian
- Scaling laws of quasi-periodic pulsations in solar flares
- Observations of Electron-driven Evaporation during a Flare Precursor
- Dispersively Formed Quasi-Periodic Fast Magnetosonic Wavefronts Due to the Eruption of a Nearby Mini-filament
- Electron distribution and energy release in magnetic reconnection outflow regions during the pre-impulsive phase of a solar flare
- Spatial Distributions of Sunspot Oscillation Modes at Different Temperatures
- Observations of a Radio-quiet Solar Preflare
Cited by in corpus (13)
- Coronal Quasi-periodic Fast-mode Propagating Wave Trains
- Detection of flare multi-periodic pulsations in mid-ultraviolet Balmer continuum, Ly-alpha, hard X-ray, and radio emissions simultaneously
- Preflare very long-periodic pulsations observed in Halpha emission before the onset of a solar flare
- Oscillatory Reconnection of a 2D X-point in a hot coronal plasma
- Detections of Multi-Periodic Oscillations during a Circular Ribbon Flare
- Oscillatory reconnection as a plasma diagnostic in the solar corona
- Observations of a Flare-ignited broad Quasi-periodic Fast-propagating wave train
- White-light QFP Wave Train and the Associated Failed Breakout Eruption
- Localizing quasi-periodic pulsations in hard X-ray, microwave and Lya emissions of an X6.4 Flare
- The Lyman-alpha Emission in Solar Flares. I. a Statistical Study on Its Relationship with the 1--8 Å Soft X-ray Emission
- Multi-instrument Comparative Study of Temperature, Number Density, and Emission Measure during the Precursor Phase of a Solar Flare
- The independence of oscillatory reconnection periodicity from the initial pulse
- Quasi-Periodic Pulsations Detected in Ly and Nonthermal Emissions During Solar Flares