1.7k citations · 3.5k across the 25 of their papers we have counts for
25 papers
Diversity of Type Ia supernova optical light curves among different spectroscopic subclasses
R. B. Koshi, M. Doi, S. Sako +3
Attempts to reveal the spectroscopic diversity of Type Ia supernovae (SNe Ia) have led to subclassification schemes such as the Branch system, which classifies SNe Ia into four cat…
UBVRI photometry of Betelgeuse over 23 years since 1999
Yojiro Ogane, Osamu Ohshima, Daisuke Taniguchi +1
We report the results of our continuous UBVRI-band photometry of Betelgeuse from 1999 to 2022 using the same photometric system. There are two advantages in our observation: (1) we…
Virtual ALMA Tour in VRChat: A Whole New Experience
Masaaki Hiramatsu, S_Asagiri, Stella. G. Amano +3
Many forefront observatories are located in remote areas and are difficult to visit, and the global pandemic made visits even harder. Several virtual tours have been executed on Yo…
Intrinsic color diversity of nearby type Ia supernovae
Noriaki Arima, Mamoru Doi, Tomoki Morokuma +1
It has been reported that the extinction law for Type Ia Supernovae (SNe Ia) may be different from the one in the Milky Way, but the intrinsic color of SNe Ia and the dust extincti…
Photometric properties of intermediate redshift Type Ia Supernovae observed by SDSS-II Supernova Survey
Naohiro Takanashi, Mamoru Doi, Naoki Yasuda +5
We have analyzed multi-band light curves of 328 intermediate redshift (0.05 <= z < 0.24) type Ia supernovae (SNe Ia) observed by the Sloan Digital Sky Survey-II Supernova Survey (S…
The Type Ia supernovae rate with Subaru/XMM-Newton Deep Survey
Jun E. Okumura, Yutaka Ihara, Mamoru Doi +15
We present measurements of the rates of high-redshift Type Ia supernovae derived from the Subaru/XMM-Newton Deep Survey (SXDS). We carried out repeat deep imaging observations with…