Search Publications

Herschel Observations in the Akari NEP Field: Initial Source Counts

Burgarella, Denis; Pearson, Chris; Serjeant, Stephen +7 more

Foreground of Gamma-Ray Bursts (grbs) from Akari Fis Data

Doi, Yasuo; Zahorecz, Sarolta; Toth, L. Viktor +4 more

A significant number of the parameters of a gamma-ray burst (GRB) and its host galaxy are calculated from the afterglow. There are various methods obtaining extinction values for the necessary correction for galactic foreground. These are: galaxy counts, from HI 21 cm surveys, from spectroscopic measurements and colors of nearby Galactic stars, or…

Strong Gravitational Lenses and Multi-Wavelength Galaxy Surveys with Akari, Herschel, SPICA and EUCLID

Serjeant, Stephen

Submillimetre and millimetre-wave surveys with Herschel and the South Pole Telescope have revolutionised the discovery of strong gravitational lenses. Their follow-ups have been greatly facilitated by the multi-wavelength supplementary data in the survey fields. The forthcoming Euclid optical/near-infrared space telescope will also detect strong g…

Akari Observations of Dusty Tori of Active Galactic Nuclei

Oyabu, Shinki; Kaneda, Hidehiro; Matsuoka, Yoshiki +4 more

Far Infrared and Submillimetre Surveys: from IRAS to Akari, Herschel and Planck

Wang, Lingyu; Rowan-Robinson, Michael

AKARI Spectroscopy of Quasars at 2.5 - 5 µm

Nakagawa, Takao; Ohyama, Youichi; Im, Myungshin +5 more

Utilizing a unique capability of AKARI that allows deep spectroscopy at 2.5 - 5.0 µm, we performed a spectroscopy study of more than 200 quasars through one of the AKARI mission programs, QSONG (Quasar Spectroscopic Observation with NIR Grism). QSONG targeted 155 high redshift (3.3 < z < 6.42) quasars and 90 low redshift active galacti…

The AGN Population in the Akari NEP Deep Field

Pearson, Chris; Serjeant, Stephen; Matsuhara, Hideo +6 more

The AKARI North Ecliptic Pole Deep Field is a natural location to accomplish deep extragalactic surveys. It is supported by comprehensive ancillary data extending from radio to X-ray wavelengths, which have been used to classify radio sources as radio-loud and radio-quiet objects and to create a catalogue of Active Galactic Nuclei (AGN). This has …

Akari, SCUBA2 and Herschel Data of Pre-Stellar Cores

Di Francesco, J.; Ward-Thompson, D.; Pattle, K. +2 more

The Radio-Far Infrared Correlation in the NEP Deep Field

Pearson, Chris; Barrufet, Laia; Serjeant, Stephen +6 more

We report the results of a multi-wavelength study in the North Ecliptic Pole (NEP) deep field and examine the far infrared-radio correlation (FIRC) for high and low redshift objects. We have found a correlation between the GMRT data at 610 MHz and the Herschel data at 250 µm that has been used to define a spectral index. This spectral index …

Debris Disks and the Zodiacal Light Explored by the Akari Mid-Infrared All-Sky Survey

Oyabu, Shinki; Inutsuka, Shu-ichiro; Onaka, Takashi +7 more