61 citations · 110 across the 3 of their papers we have counts for
4 papers
Detection of Fluorine in the Halo Planetary Nebula BoBn 1: Evidence For a Binary Progenitor Star
Masaaki Otsuka, Hideyuki Izumiura, Akito Tajitsu +1
We have found the fluorine lines [F IV] 3996.92A,4059.90A in the extremely metal-poor ([Ar/H] = -2.10+/-0.21) halo planetary nebula (PN) BoBn 1 in high-dispersion spectra from the…
Evidence for a companion to BM Gem, a silicate carbon star
Hideyuki Izumiura, Kunio Noguchi, Wako Aoki +12
Balmer and Paschen continuum emission as well as Balmer series lines of P Cygni-type profile from H_gamma through H_23 are revealed in the violet spectra of BM Gem, a carbon star a…
SUBARU HDS Observations of a Balmer-Dominated Shock in Tycho's Supernova Remnant
Jae-Joon Lee, Bon-Chul Koo, John Raymond +4
We present an Ha spectral observation of a Balmer-dominated shock on the eastern side of Tycho's supernova remnant using the Subaru Telescope. Utilizing the High Dispersion Spectro…
Time-Variable Complex Metal Absorption Lines in the Quasar HS1603+3820
Toru Misawa, Michael Eracleous, Jane C. Charlton +1
We present a new spectrum of the quasar HS1603+3820 taken 1.28 years (0.36 years in the quasar rest frame) after a previous observation with Subaru+HDS. The new spectrum enables us…