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
36 papers · 2 filters
Scenarios for GCRT J1745-3009
S. B. Popov
I discuss several scenarios to explain properties of the radio transient source GCRT J1745-3009. Namely, a highly magnetized neutron star on the propeller or georotator stage, a tr…
Radial Velocity Studies of Close Binary Stars. XV
T. Pribulla, S. M. Rucinski, R. M. Blake +8
Radial-velocity measurements and sine-curve fits to the orbital radial velocity variations are presented for the last eight close binary systems analyzed the same way as in the pre…
Looking to the future: using IR interferometry to study microquasars
Sera Markoff
Infrared interferometry is currently in a rapid development phase, with new instrumentation soon achieving milliarcsecond spatial resolutions for faint sources and astrometry on th…
Transient jets in the symbiotic prototype Z Andromedae
A. Skopal, T. Pribulla, J. Budaj +6
We present development of the collimated bipolar jets from the symbiotic prototype Z And that appeared and disappeared during its 2006 outburst. In 2006 July Z And reached its hist…
New two-colour light curves of Q0957+561: time delays and the origin of intrinsic variations
V. N. Shalyapin, L. J. Goicoechea, E. Koptelova +2
We extend the gr-band time coverage of the gravitationally lensed double quasar Q0957+561. New gr light curves permit us to detect significant intrinsic fluctuations, to determine…
DDO spectroscopic survey of MOST variable stars
Theodor Pribulla, Slavek M. Rucinski, Rainer Kuschnig +2
A spectroscopic support survey of 103 objects observed by the MOST satellite is presented; 96 are variable stars with 83 of them being new MOST variable-star detections or stars wi…
On the possible observational manifestation of supernova shock impact on the neutron star magnetosphere
A. E. Egorov, K. A. Postnov
Impact of supernova explosion on the neutron star magnetosphere in a massive binary system is considered. The supernova shock striking the NS magnetosphere filled with plasma can l…
Spatial motion of the Magellanic Clouds. Tidal models ruled out?
Adam Ruzicka, Christian Theis, Jan Palous
Recently, Kallivayalil et al. derived new values of the proper motion for the Large and Small Magellanic Clouds (LMC and SMC, respectively). The spatial velocities of both Clouds a…
Coordinate Data and Stars Identification in Astrophysical Catalogs
Nuriya T. Ashimbaeva
The aim of our paper is to make high-precision positional stellar catalogs by compiling large astrophysical data bulk and large astrometrical surveys. The data reliability and uniq…
MOST satellite photometry of stars in the M67 field: Eclipsing binaries, blue stragglers and delta-Scuti variables
Theodor Pribulla, Slavek Rucinski, Jaymie M. Matthews +7
We present two series of MOST (Microvariability & Oscillations of STars) space-based photometry, covering nearly continuously 10 days in 2004 and 30 days in 2007, of selected varia…
Tkachenko waves, glitches and precession in neutron star
S. B. Popov
Here I discuss possible relations between free precession of neutron stars, Tkachenko waves inside them and glitches. I note that the proposed precession period of the isolated neu…
Mechanical feedback in the molecular ISM of luminous IR galaxies
A. F. Loenen, M. Spaans, W. A. Baan +1
Aims: Molecular emission lines originating in the nuclei of luminous infra-red galaxies are used to determine the physical properties of the nuclear ISM in these systems. Methods:…
Spectroscopy of globular clusters in the low-luminosity spiral galaxy NGC 45
Marcelo D. Mora, Soeren S. Larsen, Markus Kissler-Patig
CONTEXT: Extragalactic globular clusters have been studied in elliptical galaxies and in a few luminous spiral galaxies, but little is known about globular clusters in low-luminosi…
On the stable configuration of ultra-relativistic material spheres. The solution for the extremely hot gas
L. Neslusan
During the last stage of collapse of a compact object into the horizon of events, the potential energy of its surface layer decreases to a negative value below all limits. The ener…
VW LMi: tightest quadruple system known. Light-time effect and possible secular changes of orbits
T. Pribulla, D. Baludansky, P. Dubovsky +4
Tightest known quadruple systems VW LMi consists of contact eclipsing binary with P_12 = 0.477551 days and detached binary with P_34 = 7.93063 days revolving in rather tight, 355.0…
Fueling QSOs: The Relevance of Mergers
Nicola Bennert, Gabriela Canalizo, Bruno Jungwiert +4
To study the relevance of mergers for the fueling of QSOs, we are currently conducting an HST imaging campaign of a sample of QSO host galaxies classified as ellipticals in the lit…
Dynamic Ly alpha jets
J. Koza, R. J. Rutten, A. Vourlidas
The solar chromosphere and transition region are highly structured and complex regimes. A recent breakthrough has been the identification of dynamic fibrils observed in H alpha as…
Discovery of kilohertz quasi-periodic oscillations and state transitions in the low-mass X-ray binary 1E~1724-3045 (Terzan 2)
D. Altamirano, M. van der Klis, M. Mendez +3
We have studied the rapid X-ray time variability in 99 pointed observations with the Rossi X-ray Timing Explorer (RXTE)'s Proportional Counter Array of the low-mass X-ray binary 1E…
Explaining the mass-to-light ratios of globular clusters
J. M. Diederik Kruijssen
The majority of observed mass-to-light ratios of globular clusters are too low to be explained by `canonical' cluster models, in which dynamical effects are not accounted for. More…
Ground-based Optical and SPITZER Infrared Imaging Observations of Comet 21P/Giacobini-Zinner
Jana Pittichova, Charles E. Woodward, Michael S. Kelley +1
We present ground-based optical and Spitzer Space Telescope infrared imaging observations of the ecliptic (Jupiter-family) comet 21P/Giacobini-Zinner, the parent body of the Dracon…
X-ray time variability across the atoll source states of 4U 1636--53
D. Altamirano, M. van der Klis, M. Méndez +3
We have studied the rapid X-ray time variability in 149 pointed observations with the \textit{Rossi X-ray Timing Explorer} (RXTE)'s Proportional Counter Array of the atoll source 4…
The model of dynamo with small number of modes and magnetic activity of T Tauri stars
D. D. Sokoloff, S. N. Nefedov, A. A. Ermash +1
The model that describes operation of dynamo in fully convective stars is presented. It is based on representation of stellar magnetic field as a superposition of finite number of…
Size-sorting dust grains in the surface layers of protoplanetary disks
C. P. Dullemond, C. Dominik
Aims: We wish to investigate what the effect of dust sedimentation is on the observed 10 mum feature of protoplanetary disks and how this may affect the interpretation of the obser…
A circumnuclear disk of atomic hydrogen in Centaurus A
R. Morganti, T. Oosterloo, C. Struve +1
We present new observations, performed with the Australia Telescope Compact Array, of the HI absorption in the central regions of Centaurus A. For the first time, absorption is det…