6.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Academia SinicaTW1.4k papers
- National Astronomical Observatory of JapanJP910 papers
- The University of TokyoJP744 papers
- Center for Astrophysics Harvard & SmithsonianUS671 papers
- Centre National de la Recherche ScientifiqueFR668 papers
- European Southern ObservatoryCL490 papers
- California Institute of TechnologyUS470 papers
- The Graduate University for Advanced Studies, SOKENDAIJP427 papers
- Kavli Institute for the Physics and Mathematics of the UniverseJP425 papers
- Jet Propulsion LaboratoryUS360 papers
- Max Planck Institute for AstronomyDE342 papers
- Leiden UniversityNL340 papers
18 papers · 2 filters
Dynamics of embedded bars and the connection with AGN. I. ISAAC/VLT stellar kinematics
E. Emsellem, D. Greusard, F. Combes +4
We present new stellar kinematical profiles of four galaxy hosts of active galactic nuclei, using the CO bandhead around 2.3 micron with the ISAAC/VLT spectrograph. We find that th…
Gaseous Disks of Spiral Galaxies: Arms and Rings
Edward Liverts, Evgeny Griv, Michael Gedalin +2
An improved linear stability theory of small-amplitude oscillations of a self-gravitating, infinitesimally thin gaseous disk of spiral galaxies has been developed. It was shown tha…
Formation of the Planetary Sequence in a Highly Flattened Disk of Frequently Colliding Planetesimals
Evgeny Griv, Michael Gedalin, Edward Liverts +2
The kinetic theory is used to study the evolution of the self-gravitating disk of planetesimals. The effects of frequent collisions between planetesimals are taken into account by…
A Gas-Kinetic Stability Analysis of Self-Gravitating and Collisional Particulate Disks with Application to Saturn's Rings
Evgeny Griv, Michael Gedalin, David Eichler +1
Linear theory is used to determine the stability of the self-gravitating, rapidly (and nonuniformly) rotating, two-dimensional, and collisional particulate disk against small-ampli…
Molecular Gas in the Powerful Radio Galaxies 3C~31 and 3C~264: Major or Minor Mergers?
J. Lim, S. Leon, F. Combes +1
We report the detection of CO~() and CO~() emission from the central regions (--) of the two powerful radio galaxies 3C~31…
Determining the Geometry and the Cosmological Parameters of the Universe through SZE Cluster Counts
Zuhui Fan, Tzihong Chiueh
We study Sunyaev-Zeldovich Effect (SZE) cluster counts in different cosmologies. It is found that even without the full knowledge of the redshift distribution of SZE clusters, one…
Weakly nonlinear theory of the Jeans instability in disk galaxies of stars
Evgeny Griv, Michael Gedalin, David Eichler +1
The reaction of collective oscillations excited in the interaction between aperiodically growing Jeans-type gravity perturbations and stars of a rapidly rotating disk of flat galax…
Particle modeling of disk-shaped galaxies of stars on nowadays concurrent supercomputers
Evgeny Griv, Michael Gedalin, Edward Liverts +3
The time evolution of initially balanced, rapidly rotating models for an isolated disk of highly flattened galaxies of stars is calculated. The method of direct integration of the…
On the Nonspherical Nature of Halo Formation
Tzihong Chiueh, Jounghun Lee
We present a new collapse condition to describe the formation of dark halos via nonspherical gravitational clustering. This new nonspherical collapse condition is obtained by the l…
Molecular Gas and the Modest Star Formation Efficiency in the ``Antennae'' Galaxies: Arp~244=NGC 4038/39
Yu Gao, K. Y. Lo, S. -W. Lee +1
(abridged) We report here a factor of 5.7 higher total CO flux in Arp~244 (the ``Antennae'' galaxies) than that previously accepted in the literature (thus a total molecular gas ma…
Radial density and temperature profiles of the intracluster gas constructed jointly from the X-ray surface brightness measurement and the universal density profile
Xiang-Ping Wu, Tzihong Chiueh
In this paper we have made an attempt to derive the radial profiles of density and temperature of intracluster gas based on the two well-established facts at present: the X-ray obs…
Complex Visibilities of Cosmic Microwave Background Anisotropies
Kin-Wang Ng
We study the complex visibilities of the cosmic microwave background anisotropies that are observables in interferometric observations of the cosmic microwave background, using the…
The Planetary System of Upsilon Andromedae
Ing-Guey Jiang, Wing-Huen Ip
The bright F8 V solar-type star upsilon Andromedae has recently been reported to have a system of three planets of Jovian masses. In order to investigate the orbital stability and…
Galaxy Spin Statistics and Spin-Density Correlation
Jounghun Lee, Ue-Li Pen
We present a theoretical study of galaxy spin correlation statistics, with detailed technical derivations. We also find an expression for the spin-density cross-correlation, and ap…
Interferometric observation of the L483 molecular core
Y. -S. Park, J. -F. Panis, N. Ohashi +2
We present the aperture synthesis imaging of C3H2 2_{12}-1_{01} and HCO+ 1-0 lines and of continuum emission at 3.4 mm toward the class 0 young stellar object, IRAS 18148-0440 in t…
Tidal Tails Around 20 Galactic Globular Cluster: Observational Evidence for Gravitational Disk/Bulge Shocking
S. Leon, G. Meylan, F. Combes
Large-field multi-color images of 20 galactic globular clusters are used to investigate the presence of tidal tails around these stellar systems. Field and cluster stars are sorted…
Tentative Detection of Galaxy Spin Correlations in the Tully Catalogue
Ue-Li Pen, Jounghun Lee, Uros Seljak
We report a tentative detection of spin correlations in the Tully catalogue of nearby galaxies. We define a simple but nontrivial spin correlation function, and find an analytic es…
Formation of Molecular Gas in the debris of violent Galaxy Interactions
Jonathan Braine, Ute Lisenfeld, Pierre-Alain Duc +1
In many gravitational interactions between galaxies, gas and stars that have been torn from either or both of the precursor galaxies can collect in 'tidal tails'. Star formation be…