79 citations · 268 across the 10 of their papers we have counts for
10 papers
A Far-Infrared Search for Planet Nine Using AKARI All-Sky Survey
Amos Y. -A. Chen, Tomotsugu Goto, Issei Yamamura +7
An unusual orbital element clustering of Kuiper belt objects (KBOs) has been observed. The most promising dynamic solution is the presence of a giant planet in the outer Solar syst…
A Search for Planet Nine with IRAS and AKARI Data
Terry Long Phan, Tomotsugu Goto, Issei Yamamura +6
The outer solar system is theoretically predicted to harbour an undiscovered planet, often referred to as P9. Simulations suggest that its gravitational influence could explain the…
No detection of radio continuum from low-redshift passive spiral galaxies
Hei Yung Chan, Michael J. I. Brown
Radio-emitting active galactic nuclei (AGNs) are common in elliptical galaxies and AGN feedback is one of the possible mechanisms for regulating star formation in massive galaxies.…
On the Radii of Brown Dwarfs Measured with AKARI Near-Infrared Spectroscopy
Satoko Sorahana, Issei Yamamura, Hiroshi Murakami
We derive the radii of 16 brown dwarfs observed by AKARI using their parallaxes and the ratios of observed to model fluxes. We find that the brown dwarf radius ranges between 0.64-…
AKARI Observations of Brown Dwarfs. III. CO, CO2 and CH4 Fundamental Bands and Physical Parameters
S. Sorahana, I. Yamamura
We investigate variations in the strengths of three molecular bands, CH4 at 3.3 um, CO at 4.6 um and CO2 at 4.2 um, in 16 brown dwarf spectra obtained by AKARI. Spectral features a…
Infrared and hard X-ray diagnostics of AGN identification from the Swift/BAT and AKARI all-sky surveys
Keiko Matsuta, Poshak Gandhi, Tadayasu Dotani +8
We combine data from two all-sky surveys in order to study the connection between the infrared and hard X-ray (>10keV) properties for local active galactic nuclei (AGN). The Swift/…
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…
An AKARI Search for Intracluster Dust of Globular Clusters
N. Matsunaga, H. Mito, Y. Nakada +7
We report the observations of 12 globular clusters with the AKARI/FIS. Our goal is to search for emission from the cold dust within clusters. We detect diffuse emissions toward NGC…
AKARI infrared imaging of reflection nebulae IC4954 and IC4955
Daisuke Ishihara, Takashi Onaka, Hidehiro Kaneda +26
We present the observations of the reflection nebulae IC4954 and IC4955 region with the Infrared Camera (IRC) and the Far-Infrared Surveyor (FIS) on board the infrared astronomical…