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
28 papers · 1 filter
Ionized Gas in the Irr Galaxy IC 10: The Emission Spectrum and Ionization Sources
V. P. Arkhipova, O. V. Egorov, T. A. Lozinskaya +1
We present the results of observations of the Irr galaxy IC 10 at the 6-m SAO telescope with the panoramic Multi-Pupil Fiber Spectrograph (MPFS). Based on the results of these obse…
Properties and Structural Features of Early-type Disk Galaxies with Multi-tier Disks
Marina A. Ilyina, Olga K. Sil'chenko
The results of photometric decomposition of surface brightness distributions in 85 early-type unbarred galaxies are presented. The SDSS r-images are analysed. Double-tiered exponen…
A tale of two GRB-SNe at a common redshift of z = 0.54
Z. Cano, D. Bersier, C. Guidorzi +71
We present ground-based and HST optical observations of the optical transients (OTs) of long-duration Gamma Ray Bursts (GRBs) 060729 and 090618, both at a redshift of z = 0.54. For…
Transit timing variation and activity in the WASP-10 planetary system
G. Maciejewski, D. Dimitrov, R. Neuhaeuser +13
Transit timing analysis may be an effective method of discovering additional bodies in extrasolar systems which harbour transiting exoplanets. The deviations from the Keplerian mot…
Invertible Symmetric 3 x 3 Binary Matrices and GQ(2,4)
Andrea Blunck, Peter Levay, Metod Saniga +1
We reveal an intriguing connection between the set of 27 (disregarding the identity) invertible symmetric 3 x 3 matrices over GF(2) and the points of the generalized quadrangle GQ(…
Transition from Regular to Chaotic Circulation in Magnetized Coronae near Compact Objects
Ondřej Kopáček, Vladimír Karas, Jiří Kovář +1
Accretion onto black holes and compact stars brings material in a zone of strong gravitational and electromagnetic fields. We study dynamical properties of motion of electrically c…
First Kepler results on compact pulsators I. Survey target selection and the first pulsators
R. H. Østensen, R. Silvotti, S. Charpinet +25
We present results from the first two quarters of a survey to search for pulsations in compact stellar objects with the Kepler spacecraft. The survey sample and the various methods…
Limits on the quiescent radio emission from the black hole binaries GRO J1655-40 and XTE J1550-564
D. E. Calvelo, R. P. Fender, D. M. Russell +6
We present the results of radio observations of the black hole binaries GRO J1655-40 and XTE J1550-564 in quiescence, with the upgraded Australia Telescope Compact Array. Neither s…
Multiwavelength imaging and spectroscopy of chromospheric evaporation in an M-class solar flare
A. M. Veronig, J. Rybak, P. Gömöry +6
We study spectroscopic observations of chromospheric evaporation mass flows in comparison to the energy input by electron beams derived from hard X-ray data for the white-light M2.…
Photometric and spectroscopic observations of three rapidly rotating late-type stars: EY Dra, V374 Peg and GSC 02038-00293
H. Korhonen, K. Vida, M. Husarik +3
Here, BV(RI)c broad band photometry and intermediate resolution spectroscopy in Halpha region are presented for two rapidly rotating late-type stars: EY Dra and V374 Peg. For a thi…
The 2008 October Swift detection of X-ray bursts/outburst from the transient SGR-like AXP 1E 1547.0-5408
G. L. Israel, P. Esposito, N. Rea +17
We report on the detailed study of the 2008 October outburst from the anomalous X-ray pulsar (AXP) 1E 1547.0-5408 discovered through the Swift/Burst Alert Telescope (BAT) detection…
Galactic disks and their evolution
A. V. Zasov, O. K. Sil'chenko
We consider the key problems related to measuring the mass of stellar disks and dark halos in galaxies and to explaining the observed properties of disks formed in massive dark hal…
Galactic chemical evolution in hierarchical formation models - II. The Intracluster Medium
Matías Arrigoni, Scott C. Trager, Rachel S. Somerville
We use the cosmological semi-analytic model (SAM) for galaxy formation presented in Paper I to study the metallicities and abundance ratios of the intracluster medium (ICM) within…
On Invariant Notions of Segre Varieties in Binary Projective Spaces
Hans Havlicek, Boris Odehnal, Metod Saniga
Invariant notions of a class of Segre varieties $\Segrem(2)$ of PG(2^m - 1, 2) that are direct products of copies of PG(1, 2), being any positive integer, are established a…
A relativistically broadened O VIII Lyalpha line in the ultra-compact X-ray binary 4U 0614+091
O. K. Madej, P. G. Jonker, A. C. Fabian +3
Ultra-compact X-ray binaries consist of a neutron star or black hole that accretes material from a white dwarf-donor star. The ultra-compact nature is expressed in very short orbit…
The statistics of the photometric accuracy based on MASS data and the evaluation of high-altitude wind
V. Kornilov
The effect of stellar scintillation on the accuracy of photometric measurements is analyzed. We obtain a convenient form of estimaton of this effect in the long exposure regime, wh…
The revision of the turbulence profiles restoration from MASS scintillation indices
V. Kornilov, M. Kornilov
The altitude distribution of optical turbulence is derived from the MASS instrument data by solving an inverse problem. In this paper, some modifications of the profile restoration…
Star Formation History in the Central Region of the Barred Galaxy NGC 7177
Olga K. Sil'chenko, Aleksandrina A. Smirnova
Using the method of integral-field (3D) spectroscopy, we have investigated the kinematics and distribution of the gas and stars at the center of the early-type spiral galaxy with a…
The nature of proximate damped Lyman alpha systems
Sara L. Ellison, J. Xavier Prochaska, Joseph Hennawi +5
We present high resolution echelle spectra of 7 proximate damped Lyman alpha (PDLA) systems whose relative velocity separation from the background quasar is Delta V < 3000 km/s. Co…
Finite Projective Spaces, Geometric Spreads of Lines and Multi-Qubits
Metod Saniga
Given a (2N - 1)-dimensional projective space over GF(2), PG(2N - 1, 2), and its geometric spread of lines, there exists a remarkable mapping of this space onto PG(N - 1, 4) where…
Notices to investigation of symbiotic binaries V. Physical parameters derived from UBV magnitudes
Zuzana Carikova, Augustin Skopal
In the optical, the spectrum of symbiotic binaries consists of contributions from the cool giant, symbiotic nebula and the hot star. Strong emission lines are superposed on the con…
A simple model of the reflection effect for the interacting binaries and extrasolar planets
Jan Budaj
Extrasolar planets are a natural extension of the interacting binaries towards the companions with very small masses and similar tools might be used to study them. Unfortunately, t…
Photometric observation of transiting extrasolar planet WASP - 10b
Tereza Krejcova, Jan Budaj, Viktoria Krushevska
Wasp-10b is a very interesting transiting extrasolar planet. Although its transit is very deep, about 40 mmag, there are very different estimates of its radius in the literature. W…
The Multicolor "Lyra" Photometric System for Variable stars and Halo Studies
Alexey V. Mironov, Andrey I. Zakharov, Mikhail E. Prokhorov +2
The space photometric project "Lyra" is developed now in Russia.The project purpose is determination of the photometric information and coordinates of the natural and artificial sp…