The EUV Imaging Spectrometer for Hinode
- J. Culhane, L. Harra, Ø. Wikstøl
- Physics
- 22 March 2007
Abstract
The EUV Imaging Spectrometer (EIS) on Hinode will observe solar corona and upper transition region emission lines in the wavelength ranges 170 – 210 Å and 250 – 290 Å. The line centroid…
The Interface Region Imaging Spectrograph (IRIS)
- B. De Pontieu, A. Title, N. Waltham
- Physics
- 1 December 2012
The Interface Region Imaging Spectrograph (IRIS) small explorer spacecraft provides simultaneous spectra and images of the photosphere, chromosphere, transition region, and corona with 0.33 – 0.4…
A Tale of Two Spicules: The Impact of Spicules on the Magnetic Chromosphere
- B. Pontieu, S. McIntosh, S. Nagata
- Physics
- 16 October 2007
We use high-resolution observations of the Sun in Ca II H 3968 A from the Solar Optical Telescope on Hinode to show that there are at least two types of spicules that dominate the structure of the…
Chromospheric Alfvénic Waves Strong Enough to Power the Solar Wind
- B. De Pontieu, S. McIntosh, S. Nagata
- PhysicsScience
- 7 December 2007
Estimates of the energy flux carried by these waves and comparisons with advanced radiative magnetohydrodynamic simulations indicate that such Alfvén waves are energetic enough to accelerate the solar wind and possibly to heat the quiet corona.
High-Resolution Observations and Modeling of Dynamic Fibrils
- B. De Pontieu, V. Hansteen, L. H. M. Rouppe van der Voort, M. van Noort, M. Carlsson
- Physics
- 20 January 2007
We present unprecedented high-resolution Hα observations, obtained with the Swedish 1 m Solar Telescope, that, for the first time, spatially and temporally resolve dynamic fibrils in active regions…
Hot explosions in the cool atmosphere of the Sun
- H. Peter, H. Tian, V. Hansteen
- PhysicsScience
- 17 October 2014
Observations by the IRIS confirm that the photosphere is more complex than conventionally thought, but also provide insight into the energy conversion in the process of magnetic reconnection.
Alfvénic waves with sufficient energy to power the quiet solar corona and fast solar wind
- S. McIntosh, B. Pontieu, M. Carlsson, V. Hansteen, P. Boerner, M. Goossens
- PhysicsNature
- 28 July 2011
Observations of the transition region of the chromosphere and the corona are reported that reveal how Alfvénic motions permeate the dynamic and finely structured outer solar atmosphere.
HIGH-RESOLUTION OBSERVATIONS OF THE SHOCK WAVE BEHAVIOR FOR SUNSPOT OSCILLATIONS WITH THE INTERFACE REGION IMAGING SPECTROGRAPH
- H. Tian, E. DeLuca, S. McIntosh
- Physics
- 24 April 2014
We present the first results of sunspot oscillations from observations by the Interface Region Imaging Spectrograph. The strongly nonlinear oscillation is identified in both the slit-jaw images and…
The Origins of Hot Plasma in the Solar Corona
- B. De Pontieu, S. McIntosh, A. Title
- PhysicsScience
- 7 January 2011
Observations from the Solar Dynamics Observatory and the Hinode solar physics mission are used to reveal a ubiquitous coronal mass supply in which chromospheric plasma in fountainlike jets or spicules is accelerated upward into the corona, with much of the plasma heated to temperatures between ~0.02 and 0.1 million kelvin.
On the prevalence of small-scale twist in the solar chromosphere and transition region
- B. De Pontieu, L. H. M. Rouppe van der Voort, J. Martínez-Sykora
- Physics, Environmental ScienceScience
- 17 October 2014
High-resolution IRIS observations with NASA’s Interface Region Imaging Spectrograph reveal a chromosphere and TR that is replete with twist or torsional motions on sub–arc second scales, occurring in active regions, quiet Sun regions, and coronal holes alike.
...
...