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11. AKARI Near Infrared Asteroid Spectral Catalog V1
ID:
ivo://CDS.VizieR/J/PASJ/71/1
Title:
AKARI Near Infrared Asteroid Spectral Catalog V1
Short Name:
J/PASJ/71/1
Date:
21 Oct 2021
Publisher:
CDS
Description:
Knowledge of water in the solar system is important for the understanding of a wide range of evolutionary processes and the thermal history of the solar system. To explore the existence of water in the solar system, it is indispensable to investigate hydrated minerals and/or water ice on asteroids. These water-related materials show absorption features in the 3um band (wavelengths from 2.7 to 3.1um). We conducted a spectroscopic survey of asteroids in the 3um band using the Infrared Camera (IRC) on board the Japanese infrared satellite AKARI. In the warm mission period of AKARI, 147 pointed observations were performed for 66 asteroids in the grism mode for wavelengths from 2.5 to 5um. According to these observations, most C-complex asteroids have clear absorption features (>10% with respect to the continuum) related to hydrated minerals at a peak wavelength of approximately 2.75um, while S-complex asteroids have no significant features in this wavelength range. The present data are released to the public as the Asteroid Catalog using AKARI Spectroscopic Observations (AcuA-spec).
12. AKARI NEP-Deep field mid-IR source catalogue
ID:
ivo://CDS.VizieR/J/A+A/537/A24
Title:
AKARI NEP-Deep field mid-IR source catalogue
Short Name:
J/A+A/537/A24
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a new catalogue of mid-IR sources using the AKARI NEP-Deep survey. The InfraRed Camera (IRC) onboard AKARI has a comprehensive mid-IR wavelength coverage with 9 photometric bands at 2-24 micron. We designed the catalogue to include most of sources detected in 7, 9, 11, 15, and 18 micron bands, and found 7284 sources in a 0.67 square degree area.
13. AKARI NEP Deep Survey revised catalog
ID:
ivo://CDS.VizieR/J/A+A/559/A132
Title:
AKARI NEP Deep Survey revised catalog
Short Name:
J/A+A/559/A132
Date:
21 Oct 2021
Publisher:
CDS
Description:
This is the revised catalogue of the AKARI North Ecliptic Pole Deep survey. The survey was carried out with the InfraRed Camera (IRC) onboard AKARI which has a comprehensive mid-IR wavelength coverage in nine photometric bands at 2-24 micron. For mid-IR source extraction we used a detection image while for near-IR source detection we used optical to near-IR ground-based catalogue which is based on CFHT/MegaCam z', CFHT/WIRCam Ks and Subaru/Scam z' band detection. Here we present an AKARI source with the identification from the ground-based catalogue. For objects with multiple counterparts, all of these were listed in the catalogue with an upper limit for the AKARI flux. The magnitudes are given in the AB system.
14. AKARI NEP Survey sources at 18um
ID:
ivo://CDS.VizieR/J/MNRAS/444/846
Title:
AKARI NEP Survey sources at 18um
Short Name:
J/MNRAS/444/846
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present the first galaxy counts at 18{mu}m using the Japanese AKARI satellite's survey at the North Ecliptic Pole (NEP), produced from the images from the NEP-Deep and NEP-Wide surveys covering 0.6 and 5.8deg^2^, respectively. We describe a procedure using a point source filtering algorithm to remove background structure and a minimum variance method for our source extraction and photometry that delivers the optimum signal to noise for our extracted sources, confirming this by comparison with standard photometry methods. The final source counts are complete and reliable over three orders of magnitude in flux density, resulting in sensitivities (80 per cent completeness) of 0.15 and 0.3mJy for the NEP-Deep and NEP-Wide surveys, respectively, a factor of 1.3 deeper than previous catalogues constructed from this field. The differential source counts exhibit a characteristic upturn from Euclidean expectations at around a milliJansky and a corresponding evolutionary bump between 0.2-0.4mJy consistent with previous mid-infrared surveys with ISO and Spitzer at 15 and 24{mu}m. We compare our results with galaxy evolution models confirming the striking divergence from the non-evolving scenario. The models and observations are in broad agreement implying that the source counts are consistent with a strongly evolving population of luminous infrared galaxies at redshifts higher than unity. Integrating our source counts down to the limit of the NEP survey at the 150{mu}Jy level we calculate that AKARI has resolved approximately 55 per cent of the 18{mu}m cosmic infrared background relative to the predictions of contemporary source count models.
15. AKARI NIR spectral atlas of Galactic HII regions
ID:
ivo://CDS.VizieR/J/ApJ/784/53
Title:
AKARI NIR spectral atlas of Galactic HII regions
Short Name:
J/ApJ/784/53
Date:
21 Oct 2021
Publisher:
CDS
Description:
Using a large collection of near-infrared spectra (2.5-5.4 {mu}m) of Galactic HII regions and HII region-like objects, we perform a systematic investigation of astronomical polycyclic aromatic hydrocarbon (PAH) features. Thirty-six objects were observed using the infrared camera on board the AKARI satellite as a part of a director's time program. In addition to the well known 3.3-3.6 {mu}m features, most spectra show a relatively weak emission feature at 5.22 {mu}m with sufficient signal-to-noise ratios, which we identify as the PAH 5.25 {mu}m band (previously reported).
16. AKARI ObsTAP service
ID:
ivo://jvo/isas/darts/akari/ObsTAP
Title:
AKARI ObsTAP service
Short Name:
AKARI_OBSTAP
Date:
29 May 2024 05:06:13
Publisher:
JVO
Description:
This is an ObsTAP service for AKARI data.
17. AKARI Point Source Catalogues Public Release 1
ID:
ivo://jvo/isas/akari_dr1
Title:
AKARI Point Source Catalogues Public Release 1
Short Name:
AKARI_DR1
Date:
08 Jan 2023 14:49:11
Publisher:
JVO
Description:
Akari is Japan's first dedicated infrared astronomical satellite (and the second infrared space mission following IRTS) launched on February 22, 2006. Akari's primary mission is to carry out the all-sky survey with the best sensitivity, spatial resolution and the widest wavelengths. The AKARI/FIS Bright Source Catalogue Version 1.0 provides the positions and fluxes of 427,071 point sources in the four far-infrared wavelengths centred at 65, 90, 140, and 160 um. The sensitivity in the 90 um band is about 0.55 Jy. The AKARI/IRC Point Source Catalogue Version 1.0 provides positions and fluxes of 870,973 sources (844,649 sources in 9um band and 194,551 sources in 18um band) in the Mid-Infrared wavelengths.
18. Asteroid catalog using AKARI (AcuA). V1.
ID:
ivo://CDS.VizieR/J/PASJ/63/1117
Title:
Asteroid catalog using AKARI (AcuA). V1.
Short Name:
J/PASJ/63/1117
Date:
21 Oct 2021
Publisher:
CDS
Description:
The AKARI Infrared Astronomical Satellite observed the whole sky in the far infrared (50-180{mu}m) and the mid-infrared (9 and 18{mu}m) between May 2006 and August 2007 (Murakami et al. 2007PASJ...59S.369M). The Asteroid catalog using AKARI (AcuA) version 1.0 is the first asteroid catalog produced based on the AKARI/IRC Mid-Infrared Survey. The catalog provides the size and albedo of 5120 asteroids.
19. IR source catalog of AKARI NEP-Wide field
ID:
ivo://CDS.VizieR/J/A+A/548/A29
Title:
IR source catalog of AKARI NEP-Wide field
Short Name:
J/A+A/548/A29
Date:
21 Oct 2021
Publisher:
CDS
Description:
The InfraRed Camera (IRC) onboard AKARI has a comprehensive wavelength coverage with 9 photometric bands at 2-24 micron. Based on the NEP-Wide survey of AKARI (which covered a 5.4 sq.deg circular area centered on the NEP), we constructed a catalog for the infrared sources found in the survey area. Here we present the catalog containing about 114,800 sources detected at the nine IRC filter bands. This is a band-merged catalogue including all of the photometry results from the supplementary optical data as well as the IRC bands. To validate a source at a given IRC band, we searched counterparts in the other bands. The band-merging was done based on this cross-matching of the sources among the filter bands. If there is no detection in a certain band, we assigned the 99.000. The NIR sources having no counterpart in any other bands are finally excluded to avoid the false objects. See the reference for the details of the NEP-Wide survey and data reduction.
20. Low-resolution NIR spectra of zodiacal light
ID:
ivo://CDS.VizieR/J/PASJ/65/119
Title:
Low-resolution NIR spectra of zodiacal light
Short Name:
J/PASJ/65/119
Date:
21 Oct 2021
Publisher:
CDS
Description:
This catalog contains the 278 low-resolution (R~20) near-infrared (1.8-5.3micron) spectra of diffuse sky covering a wide range of galactic and ecliptic latitudes with the Infrared Camera (IRC) on board AKARI before the exhaustion of liquid-helium (from September 2006 to May 2007). Advanced reduction methods specialized for the slit spectroscopy of diffuse sky spectra are developed for constructing this spectral catalog. Filter wheel of the IRC instrument has dark position to measure the dark current, and uncertainty due to dark current subtraction is estimated to be <3nW/m2/sr at 2micron (Tsumura & Wada, 2011PASJ...63..755T). Point sources brighter than mK(Vega)=19 were detected on the slit and masked for deriving the diffuse spectrum. It was confirmed that the brightness due to unresolved galactic stars under this detection limit is negligible (<0.5% of the sky brightness at 2.2 micron) by a Milky Way star count model (TRILEGAL; Girardi et al., 2005A&A...436..895G). Cumulative brightness contributed by unresolved galaxies can be estimated by the deep galaxy counts, being <4nW/m2/sr at K band in the case of limiting magnitude of mK=19 (Keenan et al., 2010ApJ...723...40K).

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