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相关论文: The Bi-directional Moving Structures in a Coronal …

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We analyzed spectral and imaging data from the Interface Region Imaging Spectrograph (IRIS), images from the Atmospheric Imaging Assembly (AIA) aboard the Solar Dynamics Observatory (SDO), and magnetograms from the Helioseismic and Magnetic…

太阳与恒星天体物理 · 物理学 2017-07-12 C. E. Alissandrakis , A. Koukras , S. Patsourakos , A. Nindos

We revisit a quiet 14-day period of solar minimum during January 2008 and track sub-streamer propagating disturbances (PDs) from low heights in STEREO/EUVI to the extended corona through STEREO/COR1 and into STEREO/COR2 along nonradial…

太阳与恒星天体物理 · 物理学 2024-09-18 Nathalia Alzate , Simone Di Matteo , Huw Morgan , Nicholeen Viall , Angelos Vourlidas

A blowout jet occurred within the south coronal hole on 9 February 2011 at 09:00 UT and was observed by the Atmospheric Imaging Assembly (AIA) and Helioseismic and Magnetic Imager (HMI) onboard the Solar Dynamics Observatory, and the EUV…

太阳与恒星天体物理 · 物理学 2015-06-17 Peter Young , Karin Muglach

We observed an elongated filamentary bright structure inside the umbra of the big sunspot in active region NOAA 12529, which differs from the light bridges usually observed in sunspots for its morphology, magnetic configuration, and…

太阳与恒星天体物理 · 物理学 2017-09-13 Salvo L. Guglielmino , Paolo Romano , Francesca Zuccarello

The travel times of light signals between two antipodal points on the surface of a compact star are calculated for two different trajectories: a straight line that passes through the center of the star and a semi-circular trajectory that…

广义相对论与量子宇宙学 · 物理学 2023-12-25 Shahar Hod

Globally-propagating coronal bright fronts (CBFs) in the solar corona are among the most dramatic manifestations of solar activity, but are not well understood despite strong links with both solar flares and coronal mass ejections. Extreme…

太阳与恒星天体物理 · 物理学 2012-02-21 David M. Long

Transition-region loops are a type of critical magnetic structure in the solar atmosphere, yet their physical properties and evolutionary characteristics remain statistically poorly constrained. We aim to statistically characterize the…

太阳与恒星天体物理 · 物理学 2026-03-31 Xiuhui Zuo , Zhenghua Huang , Maria S. Madjarska , Hui Fu , Hengyuan Wei , Xinzheng Shi , Lidong Xia

We firstly present the Solar Dynamics Observatory observations of four homologous flux ropes in active region (AR) 11745 on 2013 May 20-22. The four flux ropes are all above the neutral line of the AR, with endpoints anchoring at the same…

太阳与恒星天体物理 · 物理学 2015-06-17 Ting Li , Jun Zhang

Dynamical jets are generally found on Light bridges (LBs), which are key to studying sunspots decays. So far, their formation mechanism is not fully understood. In this paper, we used state-of-the-art observations from the Goode Solar…

太阳与恒星天体物理 · 物理学 2019-01-16 Xianyong Bai , Hector Socas-Navarro , Daniel Nóbrega-Siverio , Jiangtao Su , Yuanyong Deng , Dong Li , Wenda Cao , Kaifan Ji

Delta ($\delta$) sunspots sometimes host fast photospheric flows along the central magnetic polarity inversion line (PIL). Here we study the strong Doppler shift signature in the central penumbral light bridge of solar active region NOAA…

太阳与恒星天体物理 · 物理学 2023-07-20 Jiayi Liu , Xudong Sun , Peter W. Schuck , Sarah A. Jaeggli , Brian T. Welsch , Carlos Quintero Noda

We used the flux calibrated images through the Broad Band Filter Imager and Stokes Polarimeter data obtained with the Solar Optical Telescope onboard the Hinode spacecraft to study the properties of bright points in and around the sunspots.…

太阳与恒星天体物理 · 物理学 2015-05-18 Debi Prasad Choudhary , Toshifumi Shimizu

We report on the closest view of a coronal mass ejection observed by the Parker Solar Probe (PSP)/Wide-field Imager for {Parker} Solar PRobe (WISPR) instrument on September 05, 2022, when PSP was traversing from a distance of…

太阳与恒星天体物理 · 物理学 2023-08-23 Ritesh Patel , Matthew J. West , Daniel B. Seaton , Phillip Hess , Tatiana Niembro , Katharine K. Reeves

We study the kinematical characteristics and 3D geometry of a large-scale coronal wave that occurred in association with the 26 April 2008 flare-CME event. The wave was observed with the EUVI instruments aboard both STEREO spacecraft…

太阳与恒星天体物理 · 物理学 2015-05-27 M. Temmer , A. M. Veronig , N. Gopalswamy , S. Yashiro

Magnetic reconnection is a key mechanism involved in solar eruptions and is also a prime possibility to heat the low corona to millions of degrees. Here, we present ultra-high-resolution extreme ultraviolet observations of persistent…

We present high-resolution, high-cadence observations of six, fine-scale, on-disk jet-like events observed by the High-resolution Coronal Imager 2.1 (Hi-C 2.1) during its sounding-rocket flight. We combine the Hi-C 2.1 images with images…

An observer moving with respect to the cosmic rest frame should observe a concentration and brightening of galaxies in the direction of motion and a spreading and dimming in the opposite direction. The velocity inferred from this dipole…

宇宙学与河外天体物理 · 物理学 2022-06-08 Jeremy Darling

We present the first analysis of internal coronal mass ejection (CME) structure observed very close to the Sun by the Wide-field Imager for Solar PRobe (WISPR) instrument on board Parker Solar Probe (PSP). The transient studied here is a…

太阳与恒星天体物理 · 物理学 2021-12-15 Brian E. Wood , Carlos R. Braga , Angelos Vourlidas

We report on an analysis of high-precision, multi-colour photometric observations of the rapidly-oscillating Ap (roAp) star $\alpha$ Cir. These observations were obtained with the BRITE-Constellation, which is a coordinated mission of five…

Less than one percent of the discovered small solar system objects have highly inclined orbits ($i>60^{\circ}$), and revolve around the Sun on near-polar or retrograde orbits. The origin and evolutionary history of these objects are not yet…

Arch filament systems (AFSs) are chromospheric and coronal manifestations of emerging magnetic flux. Using high spatial resolution observations taken at a high cadence by the Extreme Ultraviolet Imager (EUI) on board Solar Orbiter, we…

太阳与恒星天体物理 · 物理学 2024-11-13 Yajie Chen , Sudip Mandal , Hardi Peter , Lakshmi Pradeep Chitta