Advances in global and local helioseismology: an introductory review

AG Kosovichev - The Pulsations of the Sun and the Stars, 2011 - Springer
Helioseismology studies the structure and dynamics of the Sun's interior by observing
oscillations on the surface. These studies provide information about the physical processes …

Dynamics of the solar chromosphere-III. Ultraviolet brightness oscillations from TRACE

JM Krijger, RJ Rutten, BW Lites, T Straus… - Astronomy & …, 2001 - aanda.org
We analyze oscillations in the solar atmosphere using image sequences from the Transition
Region and Coronal Explorer (TRACE) in three ultraviolet passbands which sample the …

Critical Science Plan for the Daniel K. Inouye Solar Telescope (DKIST)

MP Rast, N Bello González, L Bellot Rubio, W Cao… - Solar Physics, 2021 - Springer
Abstract The National Science Foundation's Daniel K. Inouye Solar Telescope (DKIST) will
revolutionize our ability to measure, understand, and model the basic physical processes …

Identifying Acoustic Wave Sources on the Sun. II. Improved Filter Techniques for Source Wavefield Seismology

SM Bahauddin, MP Rast - The Astrophysical Journal, 2023 - iopscience.iop.org
In this paper, we refine a previously developed acoustic source filter, improving its reliability
and extending its capabilities. We demonstrate how to fine-tune the filter to meet …

Width and energy of solar p-modes observed by global oscillation network group

RW Komm, R Howe, F Hill - The Astrophysical Journal, 2000 - iopscience.iop.org
We present measurements of mode width, Γ, and mean square velocity power,, derived from
all currently processed 108 day Global Oscillation Network Group (GONG) time series and …

Magnetic fields and the supply of low-frequency acoustic wave energy to the solar chromosphere

SP Rajaguru, CR Sangeetha… - The Astrophysical …, 2019 - iopscience.iop.org
The problem of solar chromospheric heating remains a challenging one with wider
implications for stellar physics. Several studies in the recent past have shown that small …

On the Variation of the Peak Asymmetry of Low-ℓ Solar p Modes

SJ Jiménez-Reyes, WJ Chaplin… - The Astrophysical …, 2007 - iopscience.iop.org
The resonant peaks of solar p modes show small amounts of asymmetry in frequency. Here,
we use five independent sets of contemporaneous data, collected over a≃ 8 yr period, to …

The solar intensity-velocity cross spectrum: a powerful diagnostic for helioseismology

G Severino, M Magrì, M Oliviero, T Straus… - The Astrophysical …, 2001 - iopscience.iop.org
We show that the solar intensity-velocity cross spectrum provides a sensitive diagnostic for
the interaction between the oscillatory and nonoscillatory components of the solar velocity …

Small-scale topology of solar atmospheric dynamics-V. Acoustic events and internetwork grains

NM Hoekzema, TR Rimmele, RJ Rutten - Astronomy & Astrophysics, 2002 - aanda.org
We use high-quality observations from the Dunn Solar Telescope at NSO/Sacramento Peak
to study spatio-temporal co-location of acoustic flux events in the photosphere and …

Photospheric downflows observed with SDO/HMI, HINODE, and an MHD simulation

T Roudier, M Švanda, JM Malherbe, J Ballot… - Astronomy & …, 2021 - aanda.org
Downflows on the solar surface are suspected to play a major role in the dynamics of the
convection zone, at least in its outer part. We investigate the existence of the long-lasting …