Eruptions from quiet Sun coronal bright points. I. Observations

  title={Eruptions from quiet Sun coronal bright points. I. Observations},
  author={Chauzhou Mou and M. Madjarska and K. Galsgaard and L. Xia},
  journal={arXiv: Solar and Stellar Astrophysics},
Observations of the full lifetime of CBPs in data taken with the AIA on board SDO in four passbands, He II 304 A, Fe IX/X 171 A, Fe XII 193 A, and Fe XVIII 94 A are investigated for the occurrence of plasma ejections, micro-flaring, mini-filament eruptions and mini coronal mass ejections (mini-CMEs). First and foremost, our study shows that the majority (76%) of quiet Sun CBPs (31 out of 42 CBPs) produce at least one eruption during their lifetime. From 21 eruptions in 11 CBPs, 18 occur in… Expand
Coronal bright points
Coronal bright points (CBPs) are a fundamental class of solar activity. They represent a set of low-corona small-scale loops with enhanced emission in the extreme-ultraviolet and X-ray spectrum thatExpand
Observational evidence of magnetic reconnection in a coronal bright point
Magnetic reconneciton is considered to be the fundamental process by which magnetic energy is converted into plasma or particle kinetic energy. And magnetic reconnection is widly applied as theExpand
Emergence of small-scale magnetic flux in the quiet Sun
We study the evolution of a small-scale emerging flux region (EFR) in the quiet Sun, from its emergence to its decay. We track processes and phenomena across all atmospheric layers, explore theirExpand
The Photospheric Footpoints of Solar Coronal Hole Jets
We study the photospheric footpoints of a set of 35 coronal jets in a coronal hole as observed by Hinode/EIS. We use SDO/AIA data to coalign the spectroscopic EIS data with SDO/HMI line-of-sightExpand
Eruptions from quiet Sun coronal bright points. II. Non-potential modelling
Support for VAPOR is provided by the U.S. National Science Foundation (grants # 03-25934 and 09-06379, ACI-14-40412), and by the Korea Institute of Science and Technology Information. C. M. thanksExpand
Eruptions from coronal hole bright points: Observations and non-potential modelling
A single case study of a CBP in an equatorial coronal hole with an exceptionally large size is investigated to extend our understanding of the formation of mini-filaments, their destabilisation andExpand
Observation and modelling of solar jets
The solar atmosphere is full of complicated transients manifesting the reconfiguration of the solar magnetic field and plasma. Solar jets represent collimated, beam-like plasma ejections; they areExpand
The chromospheric component of coronal bright points
We investigate the chromospheric counterpart of small-scale coronal loops constituting a coronal bright point (CBP) and its response to a photospheric magnetic-flux increase accompanied byExpand


Minifilament Eruption on the Quiet Sun. I. Observations at Hα Central Line
The eruption of miniature filaments on the quiet Sun has been analyzed from time sequences of digital Hα filtergrams obtained at Big Bear Solar Observatory during 1997 September 18-24. The 2 daysExpand
Coronal Bright Points Associated with Minifilament Eruptions
Coronal bright points (CBPs) are small-scale, long-lived coronal brightenings that always correspond to photospheric network magnetic features of opposite polarity. In this paper, we subjectivelyExpand
Observations of the Failed Eruption of a Filament
We have observed the fine temporal and spatial structure of a filament eruption on 2002 May 27 following an M2-class flare. Our observations at Big Bear Solar Observatory were made at the wavelengthExpand
We present observations of eruptive events in an active region adjacent to an on-disk coronal hole on 2012 June 30, primarily using data from the Solar Dynamics Observatory (SDO)/Atmospheric ImagingExpand
STEREO quadrature observations of coronal dimming at the onset of mini-CMEs
Context. Using unique quadrature observations with the two STEREO spacecraft, we investigate coronal dimmings at the onset of small-scale eruptions. In CMEs they are believed to indicate the openingExpand
An EUV Bright Point as seen by SUMER, CDS, MDI and EIT on-board SoHO
This paper presents the formation, evolution and decay of a coronal bright point via a spectroscopic analysis of its transition region counterpart and the evolution of the underlying magnetic bipoleExpand
Signature of oscillations in coronal bright points
A detailed study of two consecutive bright points observed simultaneously with the Coronal Diagnostic Spectrometer (CDS), the Extreme ultraviolet Imaging Telescope (EIT) and the Michelson DopplerExpand
We examine the three-dimensional magnetic structure and dynamics of a solar EUV-macrospicule jet that occurred on 2011 February 27 in an on-disk coronal hole. The observations are from the SolarExpand
Extreme Ultraviolet Observations and Analysis of Micro-Eruptions and Their Associated Coronal Waves
The Solar Terrestrial Relations Observatory EUV telescopes have uncovered small-scale eruptive events, tentatively referred to as 'mini-CMEs' because they exhibit morphologies similar to large-scaleExpand
Interplanetary flux rope ejected from an X-ray bright point. The smallest magnetic cloud source-region ever observed
Using multi-instrument and multi-wavelength observations (SOHO/MDI and EIT, TRACE and Yohkoh/SXT), as well as computing the coronal magnetic field of a tiny bipole combined with modelling of Wind inExpand