Journal: Publications of the Astronomical Society of Japan

  • Publication
    Low abundances of TiO and VO on the dayside of KELT-9 b: Insights from ground-based photometric observations
    We present ground-based photometric observations of secondary eclipses of the hottest known planet KELT-9 b using MuSCAT2 and Sinistro. We detect secondary...
  • Publication
    MASTER OT J030227.28+191754.5: An unprecedentedly energetic dwarf nova outburst
    We present a detailed study of the MASTER OT J030227.28 $+$191754.5 outburst in 2021-2022, which reached an amplitude of $10.2\:$mag and a duration of $60\:$d...
  • Publication
    Near- to mid-infrared imaging and spectroscopy of two buried AGNs of the nearby merging galaxy NGC 6240 with Subaru/IRCS+AO and GTC/CanariCam
    We report near-infrared K ', L', and M ' band imaging observations of the nearby merging galaxy NGC 6240 with the Infrared Camera and Spectrograph on the Subaru...
  • Publication
    Nodal precession of a hot Jupiter transiting the edge of a late A-type star TOI-1518
    TOI-1518b, a hot Jupiter around a late A-type star, is one of the few planetary systems that transit the edge of the stellar surface (the impact parameter b ~ 0...
  • Publication
    On the Origin of the Dispersion in the 7Li/6Li Ratio in the ISM
    Measurements of the 7Li/6Li ratio in the local interstellar medium (ISM) towards o Per and ζ Per by Knauth et al. (2000, AAA 073.131.129) show clouds with a...
  • Publication
    Spectroscopic observations of V455 Andromedae superoutburst in 2007: The most exotic spectral features in dwarf nova outbursts
    We present our spectroscopic observations of V455 Andromedae during the 2007 superoutburst. Our observations cover this superoutburst from around the optical...
  • Publication
    Strategy for the Inversion of Hinode Spectropolarimetric Measurements in the Quiet Sun
    In this paper we propose an inversion strategy for the analysis of spectropolarimetric measurements taken by Hinode in the quiet Sun. The Spectro-Polarimeter of...
  • Publication
    Suzaku and Multi-Wavelength Observations of OJ 287 during the Periodic Optical Outburst in 2007
    Suzaku observations of the blazar OJ 287 were performed in 2007 April 10-13 and November 7-9. They correspond to a quiescent and a flaring state, respectively...
  • Publication
    The K2-ESPRINT project. VI. K2-105 b, a hot Neptune around a metal-rich G-dwarf
    We report on the confirmation that the candidate transits observed for the star EPIC 211525389 are due to a short-period Neptune-sized planet. The host star...