Search Publications
The Nonrelaxation of Magnetic Field Lines in Solar Wind Magnetic Reconnection Exhausts
Xu, Qi; Xu, Xiaojun; Xu, Jiaying +2 more
We present a case study using data from multiple spacecraft and statistics from the ACE spacecraft to investigate the relaxation of reconnected magnetic field lines in solar wind magnetic reconnection exhausts, which constitute one of the two outflow regions resulting from magnetic reconnection, and which are often characterized by a plasma jet, m…
On properties of coronal mass ejection-solar flare linked events
Youssef, M.
In the present paper, the relation between the CMEs and their linked solar flares is examined during the entire solar cycle 23. During this solar cycle and under certain temporal and spatial conditions, 521 CMEs linked with solar flares are selected. These selected CMEs are separated into two groups according to their time of detection, 254 Before…
Aggregation Characteristics of the Sun's Large-Scale Magnetic Field Associated with a Global Magnetic Anomaly in the Last Extended Solar Cycle
Magara, Tetsuya; An, Junmo; Lee, Hwanhee +1 more
The solar cycle represents the Sun's periodically changing magnetic state, which is potentially subject to global magnetic anomalies emerging on it. What the characteristics are of the Sun's large-scale magnetic field playing roles in these anomalies is a key to clarifying how the Sun deviates from its normal magnetic state. This article reports a…
Multiwavelength Properties of the Newly Discovered Dwarf Nova ASASSN-21kt
Sokolovsky, Kirill V.; Mukai, Koji; Lopes de Oliveira, Raimundo +1 more
We report on archival XMM-Newton and post-outburst Swift observations of the newly discovered dwarf nova ASASSN-21kt. Its pre-outburst X-ray emission is consistent with that of a collisionally ionized, thermal plasma with ${kT}={8.1}_{-2.5}^{+10.2}$ keV and LX 0.2-12 keV = 7 × 1032 erg s-1, with no clear modulation…
Updates to the Chandrayaan-1 Moon Mineralogy Mapper Archive
St. Clair, M.; Million, C.; Ianno, A.
We have produced a Planetary Data System Version 4 (PDS4) bundle that modernizes M3's crucial data archive in order to improve accessibility, discoverability, and maintainability. We discuss bundle features, background, and conversion methodology.
Spectral evolution of an eruptive polar crown prominence with IRIS observations
Li, Hui; Su, Yang; Xue, Jianchao
Prominence eruption is closely related to coronal mass ejections and is an important topic in solar physics. Spectroscopic observation is an effective way to explore the plasma properties, but the spectral observations of eruptive prominences are rare. In this paper we will introduce an eruptive polar crown prominence with spectral observations fr…
The Detached Binary V887 Persei
Nelson, Robert H.
New radial velocity and photometric data for V887 Persei have been obtained, and Roche-based simultaneous analysis of RV and light curve data for V887 Per has been accomplished for the first time, using the 2003 version of the Wilson-Devinney code. Masses and stellar radii have been determined: M1 = 1.77 (4) Mʘ, M 2
Interrelations between Astrochemistry and Galactic Dynamics
Mendoza, Edgar; Duronea, Nicolas; Ronsó, Daniele +4 more
This paper presents a review of ideas that interconnect Astrochemistry and Galactic Dynamics. Since these two areas are vast and not recent, each one has already been covered separately by several reviews. After a general historical introduction, and a needed quick review of processes like the stellar nucleosynthesis which gives the base to unders…
Observation of the grazing occultation of the star TYC 1280-832-1 by the asteroid (486) Cremona
Kleshchonok, V. V.; Karbovsky, V. L.; Buromsky, M. I. +1 more
A description of the method for observing the occultation of stars by asteroids at the astronomical complex for observing the occultation of stars by Soiar system bodies is given. The complex uses an Apogee Alta U47 CCD camera as a light deiector, which operates in a time delay and integration (TDI) mode. Results of the study of the ocultation phe…
The Galaxy Environment of Extremely Massive Quasars. I. An Overdensity of Hα Emitters at z = 1.47
Im, Myungshin; Jun, Hyunsung D.; Hyun, Minhee +8 more
We measure a strong excess in the galaxy number density around PG 1630+377, an extremely massive (MBH ≃ 109.7M⊙) quasar at z = 1.475, using near-infrared narrowband imaging. We identify 79 narrow H-band excess objects in a 525 arcmin2 area including the vicinity and surroundings of the quasar. These sour…