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An optical search for transients lasting a few seconds
Michael W. Richmond, Masaomi Tanaka, Tomoki Morokuma +37
Using a prototype of the Tomo-e Gozen wide-field CMOS mosaic camera, we acquire wide-field optical images at a cadence of 2 Hz and search them for transient sources of duration 1.5…
A concept for the X-ray telescope system with an angular-resolution booster
Yoshitomo Maeda, Ryo Iizuka, Takayuki Hayashi +7
We present a concept of the X-ray imaging system with high angular-resolution and moderate sensitivity. In this concept, a two-dimensional detector, i.e., imager, is put at a sligh…
An Image Reconstruction Method for the X-ray Telescope System with an Angular Resolution Booster
Mikio Morii, Shiro Ikeda, Yoshitomo Maeda
We propose an image reconstruction method for an X-ray telescope system with an angular resolution booster proposed by Maeda et al.(2018). The system consists of double multi-grid…
"Slow-Scanning" in Ground-Based Mid-Infrared Observation
Ryou Ohsawa, Shigeyuki Sako, Takashi Miyata +8
Chopping observations with a tip-tilt secondary mirror have conventionally been used in ground-based mid-infrared observations. However, it is not practical for next generation lar…
Data Compression for the Tomo-e Gozen with Low-rank Matrix Approximation
Mikio Morii, Shiro Ikeda, Shigeyuki Sako +1
Optical wide-field surveys with a high cadence are expected to create a new field of astronomy, so-called "movie astronomy," in the near future. The amount of data of the observati…
Machine-learning Selection of Optical Transients in Subaru/Hyper Suprime-Cam Survey
Mikio Morii, Shiro Ikeda, Nozomu Tominaga +8
We present an application of machine-learning (ML) techniques to source selection in the optical transient survey data with Hyper Suprime-Cam (HSC) on the Subaru telescope. Our goa…