output
19972026
most citedThe Eleventh and Twelfth Data Releases of the Sloan Digital Sky Survey: Final Data from SDSS-III

2.5k citations

Showing 2020 · astro-ph.SRShow all

8 papers · 2 filters

astro-ph.SR2020★ 9 cited

Semi-empirical models of spicule from inversion of Ca II 8542 Å line

D. Kuridze, H. Socas-Navarro, J. Koza +1

We study a solar spicule observed off-limb using high-resolution imaging spectroscopy in the Ca II 8542 Å line obtained with the CRisp Imaging SpectroPolarimeter (CRISP) on the Swe…

astro-ph.SR2020★ 2 cited

Case study on the identification and classification of small-scale flow patterns in flaring active region

E. Philishvi, B. M. Shergelashvili, S. Buitendag +3

We propose a novel methodology to identity flows in the solar atmosphere and classify their velocities as either supersonic, subsonic, or sonic. The proposed methodology consists o…

astro-ph.SR2020★ 2 cited

Wray 15-906: a candidate luminous blue variable discovered with WISE, Herschel and SALT

O. V. Maryeva, V. V. Gvaramadze, A. Y. Kniazev +1

We present the results of study of the Galactic candidate luminous blue variable Wray 15-906, revealed via detection of its infrared circumstellar shell (of \approx2 pc in diameter…

astro-ph.SR2020★ 27 cited

Effect of latitudinal differential rotation on solar Rossby waves: Critical layers, eigenfunctions, and momentum fluxes in the equatorial plane

L. Gizon, D. Fournier, M. Albekioni

Retrograde-propagating waves of vertical vorticity with longitudinal wavenumbers between 3 and 15 have been observed on the Sun with a dispersion relation close to that of classica…

astro-ph.SR2020★ 34 cited

X-rays observations of a super-Chandrasekhar object reveal an ONeMg and a CO white dwarf merger product embedded in a putative SN Iax remnant

Lidia M. Oskinova, Vasilii V. Gvaramadze, Goetz Graefener +2

The merger of two white dwarfs (WD) is a natural outcome from the evolution of many binary stars. Recently, a WD merger product, IRAS 00500+6713, was identified. IRAS 00500+6713 co…

astro-ph.SR2020★ 11 cited

Ubiquitous hundred-Gauss magnetic fields in solar spicules

M. Kriginsky, R. Oliver, N. Freij +3

Aims. We use high-resolution spectropolarimetric observations in the Ca ii 8542 A line obtained with the SST to study the magnetic field in solar spicules. Methods. The equations t…

astro-ph.SR2020★ 8 cited

A new class of discontinuous solar wind solutions

Bidzina M. Shergelashvili, Velentin N. Melnik, Grigol Dididze +6

A new class of one-dimensional solar wind models is developed within the general polytropic, single-fluid hydrodynamic framework. The particular case of quasi-adiabatic radial expa…

astro-ph.SR2020★ 6 cited

Dynamic kink instability and transverse motions of solar spicules

T. V. Zaqarashvili

Hydrodynamic jets are unstable to the kink instability (m=1 mode in cylindrical geometry) owing to the centripetal force, which increases the transverse displacement of the jet. Wh…