Results 111 to 120 of about 3,957 (226)

The solar chromosphere at high resolution with IBIS

, 2008
Context. The exact nature of the quiet solar chromosphere and especially its temporal variation, are still subjects of intense debate. One of the contentious issues is the possible role of the magnetic field in structuring the quieter solar regions.
G. Cauzzi, Reardon, KP, K. P. Reardon, A. Vecchio, Cauzzi, G, Vecchio, Alberto   +5 more
core   +1 more source

Preferential Appearance of Hα Moreton Waves along Photospheric Magnetic Network Boundaries

The Astrophysical Journal Letters
Moreton waves are rare chromospheric signatures of large-scale coronal disturbances, often associated with big flares and coronal mass ejections. Using high-cadence, full-disk H α spectroscopic observations from Chinese H α Solar Explorer, together with ...
C. H. Zhai, Y. W. Ni, J. H. Guo, P. F. Chen   +3 more
doaj   +1 more source

Vertical Velocities in the Solar Chromosphere

, 1961
A t A birefringent filter has been used to photograph the chromosphere at various wavelengths across the HI)( line. A process of photographic subtraction has then yielded photographs of velocity distributions.
JT Jefferies, RG Giovanelli
core   +1 more source

The role and contribution of magnetic fields, characterized via their magnetic flux, to the statistical structuring of the solar atmosphere. [PDF]

Sci Rep, 2022
Li KJ, Xu JC, Feng W.
europepmc   +1 more source

The energy of waves in the photosphere and lower chromosphere

, 2012
Context. The energy source powering the solar chromosphere is still undetermined, but leaves its traces in observed intensities. Aims.
C. Beck, K. G. Puschmann, R. Rezaei
core   +1 more source

The Bright Rim Prominences according to 2.5D Radiative Transfer

The Astrophysical Journal Letters
Solar prominences observed close to the limb commonly include a bright feature that, from the perspective of the observer, runs along the interface between itself and the underlying chromosphere. Despite several idealized models being proposed to explain
Jack M. Jenkins, Christopher M. J. Osborne, Ye Qiu, Rony Keppens, Chuan Li   +4 more
doaj   +1 more source

The quiet chromosphere: old wisdom, new insights, future needs

, 2010
The introduction to this review summarizes chromosphere observation with two figures. The first part showcases the historical emphasis on the eclipse chromosphere in the development of NLTE line formation theory and criticizes 1D modeling.
Astrophysics, Rutten, R.J., Dep Natuurkunde   +2 more
core  

Near infrared observations of solar chromosphere

, 2015
Includes bibliographical references (leaves 30-31)The solar chromosphere is an excellent medium to explore the intricate interplay between plasma and magnetic fields in a regime where both are relevant and alternately dominant.
Tejomoortula, Usha Sree
core  

Observations of the Formation and Disappearance of a Funnel Prominence

The Astrophysical Journal Letters
We present an observational study of the formation and disappearance of a funnel prominence. Before the funnel prominence formed, cool materials from the top of a preexisting polar crown prominence flowed along saddle-shaped coronal loops to their base ...
Bo Yang, Jiayan Yang, Yi Bi, Junchao Hong   +3 more
doaj   +1 more source

Magnetic Fields beneath Active Region Coronal Loops

The Astrophysical Journal
We examine the hypothesis that multipolar magnetic fields advected by photospheric granules can contribute to heating the active chromosphere and corona.
Philip G. Judge, L. Kleint, C. Kuckein
doaj   +1 more source