Search Publications
Effect of an Interplanetary Coronal Mass Ejection on Saturn's Radio Emission
Jackman, C. M.; Cecconi, B.; Sánchez-Cano, B. +2 more
The Saturn Kilometric Radiation (SKR) was observed for the first time during the flyby of Saturn by the Voyager spacecraft in 1980. These radio emissions, in the range of a few kHz to 1 MHz, are emitted by electrons travelling around auroral magnetic field lines. Their study is useful to understand the variability of a magnetosphere and its coupli…
The colibri telescope array for KBO detection through serendipitous stellar occultations: A technical description
Metchev, Stanimir; Pass, Emily; Mazur, Michael J. +4 more
We present the technical design, construction and testing of the Colibri telescope array at Elginfield Observatory near London, Ontario, Canada. Three 50-cm telescopes are arranged in a triangular array and are separated by 110–160 m. During operation, they will monitor field stars at the intersections of the ecliptic and galactic plane for serend…
A window into magnetic reconnection: IRIS observations of the consequences of reconnection during solar flares
Reeves, Katharine K.
Magnetic reconnection is a dynamic process that occurs in solar flares in a tenuous and hot environment. High-cadence, high-spatial resolution spectroscopic observations with the Interface Region Imaging Spectrometer (IRIS) have provided a unique window into the reconnection process that occurs during solar flares. IRIS has observed many consequen…
SQUAB—I: The First Release of Strange QUasar Candidates With ABnormal Astrometric Characteristics From Gaia EDR3 and SDSS
Zheng, Zhen-Ya; Ji, Xiang; An, Tao +5 more
Given their extremely large distances and small apparent sizes, quasars are generally considered as objects with near-zero parallax and proper motion. However, some special quasars may have abnormal astrometric characteristics, such as quasar pairs, lensed quasars, AGNs with bright parsec-scale optical jets, which are scientifically interesting ob…
Pipeline for the Antarctic Survey Telescope 3-3 in Yaoan, Yunnan
Wang, Lifan; Castro-Tirado, A. J.; Hu, Lei +5 more
AST3-3 is the third robotic facility of the Antarctic Survey Telescopes (AST3) for transient surveys to be deployed at Dome A, Antarctica. Due to the current pandemic, the telescope has been currently deployed at the Yaoan Observation Station in China, starting the commissioning observation and a transient survey. This article presented a fully au…
An ALMA Observation of Time Variations in Chromospheric Temperature of a Solar Plage Region
Shimojo, Masumi; Shimizu, Toshifumi; Abe, Masashi
Nanoflares and the shock formation of magnetohydrodynamic waves in the solar chromosphere have been considered as key physical mechanisms of the heating of the chromosphere and corona. To investigate candidates of their signature in the mm-wavelength, a tiny active region located on the solar disk was observed with the Atacama Large millimeter and…
Linear Theory of Electromagnetic Ion Beam Instabilities in the Earth's Forshock: Peter Gary's Contributions (1981–1991)
Wilson, Lynn B., III; Winske, Dan
We discuss Peter Gary's contributions to the understanding of the origin and properties of ultra-low frequency (ULF) waves in the Earth's foreshock during the period when the International Sun Earth Explorer spacecraft (ISEE-1 and -2) provided unique data about the plasma and wave environment in this region. Peter's work concerning the linear theo…
Relation between Magnetosonic Waves and Pitch Angle Anisotropy of Warm Protons
Li, W.; Jaynes, A. N.; Ma, Q. +3 more
In the past decade, many observations of transversely heated low energy protons were reported in the inner magnetosphere. Interestingly, most of the time heated protons were observed along with magnetosonic waves. Due to the strong correlation, it was often assumed that magnetosonic waves were responsible for the heating of low energy protons. By …
Data analysis in space physics: My experience and lessons learned
Kronberg, Elena A.
The specific area of investigation in this perspective is data analysis in space physics. This paper is intended to be useful for those who start working with observations in space physics, especially with a focus on charged particle measurements. I forward lessons I learned regarding the data analysis such as calibration, statistics and machine l…
Interface Region Imaging Spectrograph (IRIS) Observations of the Fractal Dimension in the Solar Atmosphere
Aschwanden, Markus J.; Vilangot Nhalil, Nived
While previous work explored the fractality and self-organized criticality (SOC) of flares and nanoflares in wavelengths emitted in the solar corona (such as in hard X-rays, soft X-rays, and EUV wavelenghts), we focus here on impulsive phenomena in the photosphere and transition region, as observed with the {\sl Interface Region Imaging Spectrogra…