activity
20112022
most citedRevisit of Local X-ray Luminosity Function of Active Galactic Nuclei with the MAXI Extragalactic Survey

38 citations · 153 across the 10 of their papers we have counts for

collaborators

10 papers

cs.CV2022

Segmentation-free Direct Iris Localization Networks

Takahiro Toizumi, Koichi Takahashi, Masato Tsukada

This paper proposes an efficient iris localization method without using iris segmentation and circle fitting. Conventional iris localization methods first extract iris regions by u…

cs.CV2022

Fast Eye Detector Using Siamese Network for NIR Partial Face Images

Yuka Ogino, Yuho Shoji, Takahiro Toizumi +2

This paper proposes a fast eye detection method that is based on a Siamese network for near infrared (NIR) partial face images. NIR partial face images do not include the whole fac…

cs.CV2018

Rollable Latent Space for Azimuth Invariant SAR Target Recognition

Kazutoshi Sagi, Takahiro Toizumi, Yuzo Senda

This paper proposes rollable latent space (RLS) for an azimuth invariant synthetic aperture radar (SAR) target recognition. Scarce labeled data and limited viewing direction are cr…

astro-ph.HE2014★ 25 cited

MAXI observations of GRBs

Motoko Serino, Takanori Sakamoto, Nobuyuki Kawai +40

Monitor of all-sky image (MAXI) Gas Slit Camera (GSC) detects gamma-ray bursts (GRBs) including the bursts with soft spectra, such as X-ray flashes (XRFs). MAXI/GSC is sensitive to…

astro-ph.HE2013★ 20 cited

Spectral Evolution of a New X-ray Transient MAXI J0556-332 Observed by MAXI, Swift, and RXTE

Mutsumi Sugizaki, Kazutaka Yamaoka, Masaru Matsuoka +31

We report on the spectral evolution of a new X-ray transient, MAXI J0556-332, observed by MAXI, Swift, and RXTE. The source was discovered on 2011 January 11 (MJD=55572) by MAXI Ga…

astro-ph.HE2012★ 20 cited

Outburst of LS V+44 17 Observed by MAXI and RXTE, and Discovery of a Dip Structure in the Pulse Profile

Ryuichi Usui, Mikio Morii, Nobuyuki Kawai +28

We report on the first observation of an X-ray outburst of a Be/X-ray binary pulsar LS V +44 17/RX J0440.9+4431, and the discovery of an absorption dip structure in the pulse profi…

astro-ph.HE2011★ 18 cited

Long-term Monitoring of the Black Hole Binary GX 339-4 in the High/Soft State during the 2010 Outburst with MAXI/GSC

Megumi Shidatsu, Yoshihiro Ueda, Satoshi Nakahira +29

We present the results of monitoring the Galactic black hole candidate GX 339-4 with the Monitor of All-sky X-ray Image (MAXI) / Gas Slit Camera (GSC) in the high/soft state during…

astro-ph.HE2011★ 38 cited

Revisit of Local X-ray Luminosity Function of Active Galactic Nuclei with the MAXI Extragalactic Survey

Yoshihiro Ueda, Kazuo Hiroi, Naoki Isobe +32

We construct a new X-ray (2--10 keV) luminosity function of Compton-thin active galactic nuclei (AGNs) in the local universe, using the first MAXI/GSC source catalog surveyed in th…

astro-ph.HE2011★ 29 cited

The First MAXI/GSC Catalog in the High Galactic-Latitude Sky

Kazuo Hiroi, Yoshihiro Ueda, Naoki Isobe +32

We present the first unbiased source catalog of the Monitor of All-sky X-ray Image (MAXI) mission at high Galactic latitudes (), produced from the first 7-month d…

astro-ph.HE2011★ 3 cited

Peculiarly Narrow SED of GRB 090926B with MAXI and Fermi/GBM

Motoko Serino, Atsumasa Yoshida, Nobuyuki Kawai +32

The monitor of all-sky X-ray image (MAXI) Gas Slit Camera (GSC) on the International Space Station (ISS) detected a gamma-ray burst (GRB) on 2009, September 26, GRB\,090926B. This…