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相关论文: Solar jets observed with the Interface Region Imag…

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Magnetic reconnection is widely believed to be the fundamental process in the solar atmosphere that underlies magnetic energy release and particle acceleration. This process is responsible for the onset of solar flares, coronal mass…

太阳与恒星天体物理 · 物理学 2024-07-17 Pankaj Kumar , Judith T. Karpen , Vasyl Yurchyshyn , C. Richard DeVore , Spiro K. Antiochos

Using numerical simulations, we show that jets with features of type II spicules and cold coronal jets corresponding to temperatures $10^{4}$ K can be formed due to magnetic reconnection in a scenario in presence of magnetic resistivity.…

太阳与恒星天体物理 · 物理学 2017-05-29 J. J. González-Avilés , F. S. Guzmán , V. Fedun

We present here an extensive analysis of the protostellar jet driven by IRAS 20126+4104, deriving the kinematical, dynamical, and physical conditions of the H2 gas along the flow. The jet has been investigated by means of near-IR H2 and…

天体物理学 · 物理学 2015-05-13 A. Caratti o Garatti , D. Froebrich , J. Eisloeffel , T. Giannini , B. Nisini

Spicules are the most ubuiquitous type of jets in the solar atmosphere. The advent of high-resolution imaging and spectroscopy from the Interface Region Imaging Spectrograph (IRIS) and ground-based observatories has revealed the presence of…

太阳与恒星天体物理 · 物理学 2017-11-01 Bart De Pontieu , Juan Martinez-Sykora , Georgios Chintzoglou

We examine in greater detail five events previously identified as being sources of strong transient coronal outflows in a solar polar region in Hinode/EUV Imaging Spectrometer (EIS) Doppler data. Although relatively compact or faint and…

太阳与恒星天体物理 · 物理学 2022-11-30 Alphonse C. Sterling , Conrad Schwanitz , Louise K. Harra , Nour E. Raouafi , Navdeep K. Panesar , Ronald L. Moore

The solar atmosphere was traditionally represented with a simple one-dimensional model. Over the past few decades, this paradigm shifted for the chromosphere and corona that constitute the outer atmosphere, which is now considered a dynamic…

Chromospheric jets are plausible agents of energy and mass transport in the solar chromosphere, although their driving mechanisms have not yet been elucidated. Magnetic field measurements are key for distinguishing the driving mechanisms of…

太阳与恒星天体物理 · 物理学 2023-10-04 T. Matsumoto , K. Kawabata , K. Katsukawa , H. Iijima , C. Quintero Noda

Jets are ubiquitous in the star-forming process since accretion is intimately associated with outflow. Weak free-free continuum emission in the centimeter domain is associated with these jets. Observations in the cm range are most useful to…

太阳与恒星天体物理 · 物理学 2014-12-22 Guillem Anglada , Luis F. Rodriguez , Carlos Carrasco-Gonzalez

Plasma flow measurements in solar active region filaments are rare, particularly in the infrared and ultraviolet ranges that probe the chromosphere and transition region. In addition, previous studies generally focused on prominences and…

太阳与恒星天体物理 · 物理学 2025-11-04 M. Murabito , V. Andretta , S. Parenti , C. Kuckein , S. J. Gonzàlez Manrique , S. M. Lezzi , S. L. Guglielmino

Jets are defined as impulsive, well-collimated upflows, occurring in different layers of the solar atmosphere with different scales. Their relationship with coronal mass ejections (CMEs), another type of solar impulsive events, remains…

太阳与恒星天体物理 · 物理学 2016-03-16 Ruisheng Zheng , Yao Chen , Guohui Du , Chuanyang Li

We present the statistical analysis of 33 flare-related coronal jets, and discuss the link between the jet and the flare properties in these events. We selected jets that were observed between 2010 and 2016 by the Atmospheric Imaging…

太阳与恒星天体物理 · 物理学 2020-02-12 Sophie Musset , Mariana Jeunon , Lindsay Glesener

Nanoflares are regarded as one of the major mechanisms of magnetic energy release and coronal heating in the solar outer atmosphere. We conduct a statistical study on the response of the chromosphere and transition region to nanoflares, as…

太阳与恒星天体物理 · 物理学 2023-03-29 Kyuhyoun Cho , Paola Testa , Bart De Pontieu , Vanessa Polito

Magnetic reconnection is a fundamental process in space and astrophysical plasmas in which oppositely directed magnetic fields changes its connectivity and eventually converts its energy into kinetic and thermal energy of the plasma.…

太阳与恒星天体物理 · 物理学 2010-12-20 Rong Lin Jiang , Kazunari Shibata , Hiroaki Isobe , Cheng Fang

We report on the plasma properties of small-scale transient events identified in the quiet Sun, coronal holes and their boundaries. We use spectroscopic co-observations from SUMER/SoHO and EIS/Hinode combined with high cadence imaging data…

太阳与恒星天体物理 · 物理学 2015-06-05 M. S. Madjarska , Z. Huang , J. G. Doyle , S. Subramanian

We report observations of an eruptive X2.8 flare on 2013 May 13, which shows two distinct episodes of energy release in the impulsive phase. The first episode is characterized by the eruption of a magnetic flux rope, similar to the…

太阳与恒星天体物理 · 物理学 2017-08-07 Tingyu Gou , Astrid M. Veronig , Ewan Dickson , Aaron Hernandez-Perez , Rui Liu

We present observations of distinct UV spectral properties at different locations during an atypical X-shaped flare (SOL2014-11-09T15:32) observed by the Interface Region Imaging Spectrograph (IRIS). In this flare, four chromospheric…

太阳与恒星天体物理 · 物理学 2017-11-01 Y. Li , M. Kelly , M. D. Ding , J. Qiu , X. S. Zhu , W. Q. Gan

Bunches of swaying and spinning plasma jets in the solar atmosphere - the spicules - exhibit a variety of complex dynamics that are clearly observed in the images of the solar limb. Utilizing three-dimensional radiative magnetohydrodynamics…

太阳与恒星天体物理 · 物理学 2024-04-26 Sahel Dey , Piyali Chatterjee , Robertus Erdelyi

We report the discovery of two adjacent jet candidates with a length of about 9 degrees each -- 10 times longer than the largest known jets -- detected by us on 60 and 100 micron IRAS maps, but not observed at any other wavelength. They are…

天体物理学 · 物理学 2009-11-10 Ronald Weinberger , Birgit Armsdorfer

We present Space Telescope Imaging Spectrograph (STIS) spectral images of the HH~30 stellar jet taken through a wide slit over two epochs. The jet is unresolved spectrally, so the observations produce emission-line images for each line in…

天体物理学 · 物理学 2011-02-11 P. Hartigan , J. Morse

High-resolution observations from the $Interface~Region~Imaging~Spectrometer$ ($IRIS$) reveal the existence of a particular type of small solar jets, which arose singly or in clusters from a tornado-like prominence suspended in the corona.…

太阳与恒星天体物理 · 物理学 2020-08-19 Huadong Chen , Jun Zhang , Bart De Pontieu , Suli Ma , Bernhard Kliem , Eric Priest