Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP3.2k papers
- The Graduate University for Advanced Studies, SOKENDAIJP1.8k papers
- Centre National de la Recherche ScientifiqueFR1.2k papers
- Kyoto UniversityJP1.1k papers
- Nagoya UniversityJP1k papers
- California Institute of TechnologyUS968 papers
- Institute of Astronomy and Astrophysics, Academia SinicaTW910 papers
- Kavli Institute for the Physics and Mathematics of the UniverseJP863 papers
- Center for Astrophysics Harvard & SmithsonianUS810 papers
- National Institutes of Natural SciencesJP766 papers
- Institute of Space and Astronautical ScienceJP745 papers
- Tohoku UniversityJP725 papers
133 papers · 1 filter
Dynamical response to supernova-induced gas removal in two-component spherical galaxies
Masahiro Nagashima, Yuzuru Yoshii
We investigate dynamical response on size and velocity dispersion to mass loss by supernovae in formation of two-component spherical galaxies composed of baryon and dark matter. Th…
Cosmic star formation history associated with QSO activity: an approach using the black hole to bulge mass correlation
Y. P. Wang, T. Yamada, Y. Taniguchi
The tight correlation between the masses of central black holes and their host spheroids in nearby galaxies and active galactic nuclei suggests that black hole growth is closely re…
Luminosity Function of Morphologically Classified Galaxies in the Sloan Digital Sky Survey
Osamu Nakamura, Masataka Fukugita, Naoki Yasuda +5
The morphological dependence of the luminosity function is studied using a sample containing approximately 1500 bright galaxies classified into Hubble types by visual inspections f…
Cardassian Expansion: Constraints from Compact Radio Source Angular Size versus Redshift Data
Zong-Hong Zhu, Masa-Katsu Fujimoto
The ``Cardassian Expansion Scenario'' was recently proposed by Freese and Lewis (2002) as an alternative to a cosmological constant in explaining the current accelerating universe.…
Special Purpose Pulsar Telescope for the Detection of Cosmic Gravitational Waves
Shou-Guan Wang, Zong-Hong Zhu, Zhen-Long Zou +1
Pulsars can be used to search for stochastic backgrounds of gravitational waves of cosmological origin within the very low frequency band (VLF), to Hz. We propo…
Chemistry and Dynamics in Pre-Protostellar Cores
Jeong-Eun Lee, Neal J. Evans, Yancy L. Shirley +1
We have compared the intensity distribution of molecular line emission with that of dust continuum emission, and modeled molecular line profiles in three different preprotostellar…
Absorption Line Survey of H3+ toward the Galactic Center Sources I. GCS 3-2 and GC IRS3
M. Goto, B. J. McCall, T. R. Geballe +4
We present high-resolution (R = 20000) spectroscopy of H3+ absorption toward the luminous Galactic center sources GCS 3-2 and GC IRS 3. With the efficient wavelength coverage affor…
Radio observations of the XMM-Newton/Chandra 13hr deep survey field
K. F. Gunn, I. M. McHardy, N. Seymour +9
Our VLA observations of the XMM-Newton/Chandra 13hr deep survey field (see Page et al., this proceedings) result in one of the two deepest 1.4GHz radio maps ever made. Within the 1…
X-ray and optical properties of X-ray sources in the 13hr XMM-Newton/Chandra deep survey
M. J. Page, I. M. McHardy, K. F. Gunn +8
The 13hr XMM-Newton/Chandra deep survey is the first of two extremely deep XMM-Newton fields observed by the XMM-OM consortium. A 120 ks Chandra mosaic, covering 0.2 square degrees…
Evolutionary SED diagnostics of starburst galaxies: signature of bimodality
Toshinobu Takagi, Nobuo Arimoto, Hitoshi Hanami
We construct an evolutionary spectral energy distribution (SED) model of a starburst region, from the ultraviolet to submillimetre wavelengths. This model allows us to derive the s…
Measurement of the Europium Isotope Ratio for the Extremely Metal-Poor, r-Process-Enhanced Star CS31082-001
W. Aoki, S. Honda, T. C. Beers +1
We report the first measurement of the isotope fraction of europium (151Eu and 153Eu) for the extremely metal-poor, r-process-enhanced star CS31082-001, based on high-resolution sp…
Application of the global modal approach to the spiral galaxies
N. V. Orlova, V. I. Korchagin, N. Kikuchi +2
We have tested the applicability of the global modal approach in the density wave theory of spiral structure for a sample of spiral galaxies with measured axisymmetric background p…
Detection of diffuse TeV gamma-ray emission from the nearby starburst galaxy NGC 253
C. Itoh, R. Enomoto, S. Yanagita +2
We report the TeV gamma-ray observations of the nearby normal spiral galaxy NGC 253. At a distance of 2.5 Mpc, NGC 253 is one of the nearest starburst galaxies. This relative…
Deep Near-Infrared Observations and Identifications of Chandra Sources in the Orion Molecular Cloud 2 and 3
M. Tsujimoto, K. Koyama, N. Kobayashi +3
We conducted deep NIR imaging observations of the Orion molecular cloud 2 and 3 using QUIRC on the 88-inch telescope of the University of Hawaii. Our purposes are 1) to generate a…
Unusual Phase Reversal of Superhumps in ER Ursae Majoris
T. Kato, D. Nogami, S. Masuda
We studied the evolution of superhumps in the peculiar SU UMa-type dwarf nova, ER UMa. Contrary to the canonical picture of the SU UMa-type superhump phenomena, the superhumps of E…
The Hubble Diagram of Type Ia Supernovae as a Function of Host Galaxy Morphology
M. Sullivan, R. S. Ellis, G. Aldering +41
(Abridged) We present new results on the Hubble diagram of distant type Ia supernovae (SNe Ia) segregated according to the type of host galaxy. This makes it possible to check earl…
Subaru high resolution spectroscopy of complex metal absorption lines of QSO HS1603+3820
Toru Misawa, Toru Yamada, Masahide Takada-Hidai +4
We present a high resolution spectrum of the quasar, HS1603+3820 (z_em=2.542), observed with the High Dispersion Spectrograph (HDS) on Subaru Telescope. This quasar, first discover…
Cluster-Cluster Microlensing as a Probe of Intracluster Stars, MACHOs, and Remnants of the First Generation Stars
Tomonori Totani
The galaxy cluster Abell 2152 is recently found to be forming a cluster-cluster system with another, more distant cluster whose core is almost perfectly aligned to that of A2152. W…
Images for an Isothermal Ellipsoidal Gravitational Lens from a Single Real Algebraic Equation
Hideki Asada, Takashi Hamana, Masumi Kasai
We present explicit expressions for the lens equation for a cored isothermal ellipsoidal gravitational lens as a single real sixth-order algebraic equation in two approaches; 2-dim…
SDSSp J104433.04012502.2 at is Gravitationally Magnified by an Intervening Galaxy
Yasuhiro Shioya, Yoshiaki Taniguchi, Takashi Murayama +15
During the course of our optical deep survey program on L emitters at in the sky area surrounding the quasar SDSSp J104433.04012502.2 at , we found th…
Subaru Prime Focus Camera -- Suprime-Cam --
Satoshi Miyazaki, Yutaka Komiyama, Maki Sekiguchi +12
We have built an 80-mega pixels (10240 X 8192) mosaic CCD camera, called Suprime-Cam, for the wide-field prime focus of the 8.2 m Subaru telescope. Suprime-Cam covers a field of vi…
Candidates for Intracluster Planetary Nebulae in the Virgo Cluster based on the Suprime-Cam Narrow-Band Imaging in O[III] and Halpha
S. Okamura, N. Yasuda, M. Arnaboldi +17
We have identified 38 candidates of intracluster planetary nebulae (ICPNe) in a field in the core of the Virgo cluster based on the Suprime-Cam imaging through two n…
Narrow band imaging in [OIII] and Halpha to search for ICPNe in the Virgo cluster
M. Arnaboldi, K. C. Freeman, S. Okamura +17
We have identified intracluster planetary nebulae in a Virgo cluster core field by imaging with the Subaru Suprime-Cam through two narrow band filters centered at the redshifted wa…
Properties of the Brightest Cluster Galaxy and Its Host Cluster
Haruyoshi Katayama, Kiyoshi Hayashida, Fumio Takahara +1
We investigate the relation between the properties of Brightest Cluster Galaxies (BCGs) and those of their host clusters. To quantify the properties of cluster hot gas, we employ t…