Waves and oscillations have been observed in the Sun's atmosphere for over half a century.
While such phenomena have readily been observed across the entire electromagnetic …

Waves and oscillations are important solar phenomena, not only because they can
propagate and dissipate energy in the chromosphere, but also because they carry …

Context. Because of the complex physics that governs the formation of chromospheric lines,
interpretation of solar chromospheric observations is difficult. The origin and characteristics …

Recent observations provided evidence that the solar chromosphere of sunspot regions is
pervaded by Alfvénic waves—transverse magnetohydrodynamic (MHD) waves (Alfvén …

We study the Hα and Ca ii 8542 Å line spectra of four typical Ellerman bombs (EBs) in the
active region NOAA 11765 on 2013 June 6, observed with the Fast Imaging Solar …

Context. Sunspot oscillations are one of the most frequently studied wave phenomena in the
solar atmosphere. Understanding the basic physical processes responsible for sunspot …

We carried out an extensive statistical study of the properties of pores and sunspots, and
investigated the relationship among their physical parameters such as size, intensity …

Recent observations of a sunspot's umbra have suggested that it may be finely structured on
a subarcsecond scale representing a mix of hot and cool plasma elements. In this study, we …

It is still a mystery how the solar chromosphere can stand high above the photosphere. The
dominant portion of this layer must be dynamically supported, as is evident by the common …

We analyze sunspot oscillations using Interface Region Imaging Spectrograph (IRIS) slit-jaw
and spectral data and narrow-band chromospheric images from the New Solar Telescope …