3.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Slovak Academy of SciencesSK377 papers
- Centre National de la Recherche ScientifiqueFR328 papers
- University of GroningenNL256 papers
- Instituto de Astrofísica de CanariasES218 papers
- Leiden UniversityNL201 papers
- University of AmsterdamNL199 papers
- Université Paris CitéFR193 papers
- National Institute for AstrophysicsIT192 papers
- Czech Academy of Sciences, Astronomical InstituteCZ181 papers
- Sorbonne UniversitéFR178 papers
- Max Planck Institute for AstronomyDE177 papers
- Goddard Space Flight CenterUS172 papers
18 papers · 2 filters
Spectral Characteristics of the He I D3 Line in a Quiescent Prominence Observed by THEMIS
J. Koza, J. Rybák, P. Gömöry +2
We analyze the observations of a quiescent prominence acquired by the Telescope Heliographique pour l'Etude du Magnetisme et des Instabilites Solaires (THEMIS) in the He I 5876 A (…
Transmission profile of the Dutch Open Telescope H Lyot filter
J. Koza, R. H. Hammerschlag, J. Rybák +3
Accurate knowledge of the spectral transmission profile of a Lyot filter is important, in particular in comparing observations with simulated data. The paper summarizes available f…
Ca II 8542 Å brightenings induced by a solar microflare
C. Kuckein, A. Diercke, S. J. González Manrique +6
We study small-scale brightenings in Ca II 8542 Å line-core images to determine their nature and effect on localized heating and mass transfer in active regions. High-resolution 2D…
Photometric study of fourteen low-mass binaries
David Korda, Petr Zasche, Marek Wolf +3
New CCD photometric observations of fourteen short-period low-mass eclipsing binaries (LMB) in the photometric filters I, R and V were used for the light curve analysis. There stil…
Generation mechanisms of quasi-parallel and quasi-circular flare ribbons in a confined flare
Aaron Hernandez-Perez, Julia K. Thalmann, Astrid M. Veronig +3
We analyze a confined multiple-ribbon M2.1 flare (SOL2015-01-29T11:42) that originated from a fan-spine coronal magnetic field configuration, within active region NOAA 12268. The o…
An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova
S. Vennes, P. Nemeth, A. Kawka +4
Subluminous Type Ia supernovae, such as the Type Iax class prototype SN 2002cx, are described by a variety of models such as the failed detonation and partial deflagration of an ac…
Spectroscopic inversions of the Ca ii 8542 Å line in a C-class solar flare
D. Kuridze, V. Henriques, M. Mathioudakis +5
We study the C8.4 class solar flare SOL2016-05-14T11:34 UT using high-resolution spectral imaging in the Ca ii 8542 Å line obtained with the CRISP imaging spectropolarimeter on the…
Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. IX: The Ninth Year (2016-2017)
Taichi Kato, Keisuke Isogai, Franz-Josef Hambsch +76
Continuing the project described by Kato et al. (2009, arXiv:0905.1757), we collected times of superhump maxima for 127 SU UMa-type dwarf novae observed mainly during the 2016--201…
Oscillations in the 45-5000 MHz Radio Spectrum of the 18 April 2014 Flare
M. Karlicky, J. Rybak, C. Monstein
Using a new type of oscillation map, made from the radio spectra by the wavelet technique, we study the 18 April 2014 M7.3 flare (SOL2014-04-18T13:03:00L245C017). We find a quasi-p…
Constraints on the distance moduli, helium and metal abundances, and ages of globular clusters from their RR Lyrae and non-variable horizontal-branch stars. II. Multiple stellar populations in 47Tuc, M3, and M13
Pavel Denissenkov, Don A. VandenBerg, Grzegorz Kopacki +1
We present a new set of horizontal-branch (HB) models computed with the MESA stellar evolution code. The models adopt -enhanced \cite{ags09} metals mixtures and include the grav…
New outburst of the symbiotic nova AG Peg after 165 years
A. Skopal, S. Yu. Shugarov, M. Sekeráš +13
AG Peg is known as the slowest symbiotic nova, which experienced its nova-like outburst around 1850. After 165 years, during June of 2015, it erupted again showing characteristics…
Flare-induced changes of the photospheric magnetic field in a -spot deduced from ground-based observations
Peter Gömöry, Horst Balthasar, Christoph Kuckein +6
Aims: Changes of the magnetic field and the line-of-sight velocities in the photosphere are being reported for an M-class flare that originated at a -spot belonging to active re…
Transit Timing Variations in the system Kepler-410Ab
Pavol Gajdoš, Štefan Parimucha, Ľubomír Hambálek +1
We present a new analysis of the transit timing variations displayed by the extrasolar planet Kepler-410Ab. We obtained and improved orbital and physical parameters for the planet…
OT J002656.6+284933 (CSS101212:002657+284933): An SU UMa-Type Dwarf Nova with Longest Superhump Period
Taichi Kato, Tamas Tordai, Colin Littlefield +17
We observed the 2016 outburst of OT J002656.6+284933 (CSS101212:002657+284933) and found that it has the longest recorded [0.13225(1) d in average] superhumps among SU UMa-type dwa…
Wind asymmetry imprint in the UV light curves of the symbiotic binary SY Mus
Natalia Shagatova, Augustin Skopal
Context: Light curves (LCs) of some symbiotic stars show a different slope of the ascending and descending branch of their minimum profile. The origin of this asymmetry is not unde…
On the nature of the candidate T-Tauri star V501 Aurigae
M. Vaňko, G. Torres, L. Hambálek +18
We report new multi-colour photometry and high-resolution spectroscopic observations of the long-period variable V501 Aur, previously considered to be a weak-lined T-Tauri star bel…
V773 Cas, QS Aql, and BR Ind: Eclipsing Binaries as Parts of Multiple Systems
P. Zasche, J. Jurysek, J. A. Nemravova +9
Eclipsing binaries remain crucial objects for our understanding of the universe. In particular, those that are components of multiple systems can help us solve the problem of the f…
Flows along arch filaments observed in the GRIS 'very fast spectroscopic mode'
S. J. González Manrique, C. Denker, C. Kuckein +28
A new generation of solar instruments provides improved spectral, spatial, and temporal resolution, thus facilitating a better understanding of dynamic processes on the Sun. High-r…