842 citations · 3.1k across the 39 of their papers we have counts for
7 papers · 1 filter
Fast optical flares from M dwarfs detected by a one-second-cadence survey with Tomo-e Gozen
Masataka Aizawa, Kojiro Kawana, Kazumi Kashiyama +18
We report a one-second-cadence wide-field survey for M-dwarf flares using the Tomo-e Gozen camera mounted on the Kiso Schmidt telescope. We detect 22 flares from M3-M5 dwarfs with…
Dust dissipation timescales in the intermediate and outer regions of protoplanetary disks
Hiroshi Maeshima, Takao Nakagawa, Takuya Kojima +2
Dust and gas in protoplanetary disks dissipate as central stars evolve. In order to estimate the dust dissipation timescales in the protoplanetary disks, we stacked the WISE 12, 22…
AKARI Mission Program: Excavating Mass Loss History in Extended Dust Shells of Evolved Stars (MLHES) I. Far-IR Photometry
Toshiya Ueta, Andrew J. Torres, Hideyuki Izumiura +3
We performed a far-IR imaging survey of the circumstellar dust shells of 144 evolved stars as a mission programme of the AKARI infrared astronomical satellite using the Far-Infrare…
Dramatic infrared variability of WISE J1810-3305: catching early dust ejection during the thermal pulse of an AGB star?
Poshak Gandhi, Issei Yamamura, Satoshi Takita
We present the discovery of a source with broadband infrared photometric characteristics similar to Sakurai's Object. WISE J180956.27-330500.2 (hereafter, J1810-3305) shows very re…
A survey of T Tauri stars with AKARI toward the Taurus-Auriga region
Satoshi Takita, Hirokazu Kataza, Yoshimi Kitamura +4
Aims: We search new T Tauri star (TTS) candidates with the mid-infrared (MIR) part of the AKARI All-Sky Survey at 9 and 18 um wavelengths. Methods: We used the point source catalog…
AKARI's infrared view on nearby stars : Using AKARI Infrared Camera All-Sky Survey, 2MASS, and Hipparcos catalog
Y. Ita, M. Matsuura, D. Ishihara +11
Results: We found that the (B-V) v.s. (V-S9W) color-color diagram is useful to identify the stars with infrared excess emerged from circumstellar envelopes/disks. Be stars with inf…
AKARI's infrared view on nearby stars : Using AKARI Infrared Camera All-Sky Survey, 2MASS, and Hipparcos catalog
Y. Ita, M. Matsuura, D. Ishihara +11
--Results-- We found that the (B-V) v.s. (V-S9W) color-color diagram is useful to identify the stars with infrared excess emerged from circumstellar envelopes/disks. Be stars with…