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Discovery of Multiply Imaged Galaxies behind the Cluster and Lensed Quasar SDSS J1004+4112
Keren Sharon, Eran O. Ofek, Graham P. Smith +7
We have identified three multiply imaged galaxies in Hubble Space Telescope images of the redshift z=0.68 cluster responsible for the large-separation quadruply lensed quasar, SDSS…
Topology Analysis of the Sloan Digital Sky Survey: I. Scale and Luminosity Dependences
Changbom Park, Yun-Young Choi, Michael Vogeley +7
We measure the topology of volume-limited galaxy samples selected from a parent sample of 314,050 galaxies in the Sloan Digital Sky Survey(SDSS), which is now complete enough to de…
Fourier Phase Analysis of SDSS Galaxies
Chiaki Hikage, Takahiko Matsubara, Yasushi Suto +3
We present a first analysis of the clustering of SDSS galaxies using the distribution function of the sum of Fourier phases. This statistic was recently proposed by one of authors…
An Analytic Model for the Axis-Ratio Distribution of Dark Matter Halos from the Primordial Gaussian Density Field
Jounghun Lee, Yipeng Jing, Yasushi Suto
We present an analytic expression for the axis ratio distribution of triaxial dark matter halos driven from physical principles. Adopting the picture of triaxial collapse based on…
Soft X-ray Transmission Spectroscopy of Warm/Hot Intergalactic Medium with XEUS
Hajime Kawahara, Kohji Yoshikawa, Shin Sasaki +5
We discuss the detectability of Warm/Hot Intergalactic medium (WHIM) via the absorption lines toward bright point sources with a future X-ray satellite mission, XEUS. While we cons…
Subaru HDS Transmission Spectroscopy of the Transiting Extrasolar Planet HD 209458b
Norio Narita, Yasushi Suto, Joshua N. Winn +6
We have searched for absorption in several common atomic species due to the atmosphere or exosphere of the transiting extrasolar planet HD 209458b, using high precision optical spe…