421 citations · 2k across the 36 of their papers we have counts for
36 papers
The 3.3 m Infrared Emission Feature: Observational and Laboratory Constraints on Its Carrier
Alan T. Tokunaga, Lawrence S. Bernstein
We examine the self-consistency of laboratory and observational data for potential carriers of the 3.3 m infrared emission feature (IEF), a member of the ubiquitous family of st…
Multi-Epoch Detections of Water Ice Absorption in Edge-on Disks around Herbig Ae Stars: PDS 144N and PDS 453
Hiroshi Terada, Alan T. Tokunaga
We report the multi-epoch detections of the water ice in 2.8-4.2 micron spectra of two Herbig Ae stars, PDS 144N (A2 IVe) and PDS 453 (F2 Ve), which have an edge-on circumstellar d…
Herbig Ae/Be candidate stars in the innermost Galactic disk: Quartet cluster
Chikako Yasui, Naoto Kobayashi, Satoshi Hamano +4
In order to investigate the Galactic-scale environmental effects on the evolution of protoplanetary disks, we explored the near-infrared (NIR) disk fraction of the Quartet cluster,…
Discovery of Star Formation in the Extreme Outer Galaxy Possibly Induced by a High-velocity Cloud Impact
Natsuko Izumi, Naoto Kobayashi, Chikako Yasui +3
We report the discovery of star formation activity in perhaps the most distant molecular cloud in the extreme outer galaxy. We performed deep near infrared imaging with the Subaru…
Rapid Evolution of the Innermost Dust Disk of Protoplanetary Disks Surrounding Intermediate-mass Stars
Chikako Yasui, Naoto Kobayashi, Alan T. Tokunaga +1
We derived the intermediate-mass (~=1.5--7 M_sun) disk fraction (IMDF) in the near-infrared JHK photometric bands as well as in the mid-infrared (MIR) bands for young clusters in t…
Adaptive Optics Observations of 3 micron Water Ice in Silhouette Disks in the Orion Nebula Cluster and M43
Hiroshi Terada, Alan T. Tokunaga, Tae-Soo Pyo +9
We present the near-infrared images and spectra of four silhouette disks in the Orion Nebula Cluster (ONC; M42) and M43 using the Subaru Adaptive Optics system. While d053-717 and…