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相关论文: The AKARI FU-HYU galaxy evolution program: First r…

200 篇论文

We present recent and ongoing results from extremely deep 18 day MERLIN + VLA 1.4GHz observations (rms: 3.3microJy/bm) of an 8.5-by-8.5 arcminute field centred upon the Hubble Deep Field North. This area of sky has been the subject of some…

天体物理学 · 物理学 2007-05-23 R. J. Beswick , T. W. B. Muxlow , H. Thrall , A. M. S. Richards

AKARI/Infrared Camera (IRC) Point Source Catalog provides a large amount of flux data at {\it S9W} ($9\ {\rm \mu m}$) and {\it L18W} ($18\ {\rm \mu m}$) bands. With the goal of constructing Star-Formation Rate(SFR) calculations using IRC…

星系天体物理 · 物理学 2015-06-03 F. -T. Yuan , T. T. Takeuchi , V. Buat , S. Heinis , E. Giovannoli , K. L. Murata , J. Iglesias-Paramo , D. Burgarella

AKARI/IRC has a capability of the slit-less spectroscopy in the mid-infrared (5--13 $\mu$m) over a 10 arcmin$\times$10 arcmin area with a spectral resolution of 50, which is suitable for serendipitous surveys. The data reduction is,…

We present the mid-infrared (MIR) spectra obtained with the Spitzer InfraRed Spectrograph (IRS) for a sample of 52 sources, selected as infrared luminous, z>1 candidates in the Extragalactic First Look Survey (XFLS). The sample selection…

天体物理学 · 物理学 2009-11-11 Lin Yan , Anna Sajina , Dario Fadda , Phil Choi , Lee Armus , George Helou , Harry Teplitz , David Frayer , Jason Surace

We investigate the segregation of the extragalactic population via colour criteria to produce an efficient and inexpensive methodology to select specific source populations as a function of far-infrared flux. Combining galaxy evolution…

The study of the dominant population of high redshift IR-luminous galaxies (10^11 - 10^12 Lsun at 1<z<3), requires observation of sources at the ~0.1 mJy level in the mid-IR. We present the deepest spectra taken to date with the Infrared…

--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 infrared excess are well separated from other types of stars…

太阳与恒星天体物理 · 物理学 2015-05-18 Y. Ita , M. Matsuura , D. Ishihara , S. Oyabu , S. Takita , H. Kataza , I. Yamamura , N. Matsunaga , T. Tanabe , Y. Nakada , H. Fujiwara , T. Wada , T. Onaka , H. Matsuhara

We identify 85 variable galaxies in the GOODS North and South fields using 5 epochs of HST ACS V-band (F606W) images spanning 6 months. The variables are identified through significant flux changes in the galaxy's nucleus and represent ~2%…

We present an initial analysis of AKARI 18um-selected galaxies using all 9 photometric bands at 2-24um available in the InfraRed Camera (IRC), in order to demonstrate new capabilities of AKARI cosmological surveys. We detected 72 sources at…

The AKARI Deep Field South (ADF-S) is a large extragalactic survey field that is covered by multiple instruments, from optical to far-IR and radio. I summarise recent results in this and related fields prompted by the release of the…

星系天体物理 · 物理学 2016-01-07 David L Clements

The deep X-ray, optical, and far-infrared fields that constitute GOODS are sensitive to obscured AGN (N_H>10^{22} cm^{-2}) at the quasar epoch (z~2-3), as well as to unobscured AGN as distant as z~7. Luminous X-ray emission is a sign of…

How does the submm galaxy population detected by SCUBA fit into galaxy evolution? How do these rare starbursting systems, which contribute significantly to high redshift star-formation, relate to other galaxy populations? Deep radio…

To investigate the nature and properties of far-infrared (FIR) sources from the AKARI Deep Field South (ADF-S), we performed an extensive search for the counterparts of 1000 ADF-S objects brighter than 0.0301 Jy in the WIDE-S (90 $\mu$m)…

宇宙学与河外天体物理 · 物理学 2015-05-14 K. Malek , A. Pollo , T. T. Takeuchi , P. Bienias , M. Shirahata , S. Matsuura , M. Kawada

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 infrared excess are well separated from other types of stars in…

太阳与恒星天体物理 · 物理学 2010-03-10 Y. Ita , M. Matsuura , D. Ishihara , S. Oyabu , S. Takita , H. Kataza , I. Yamamura , N. Matsunaga , T. Tanabe , Y. Nakada , H. Fujiwara , T. Wada , T. Onaka , H. Matsuhara

We present ultra-deep mid-IR spectra of 48 infrared-luminous galaxies in the GOODS-South field obtained with the InfraRed Spectrograph (IRS) on the Spitzer Space Telescope. These galaxies are selected among faint infrared sources (0.14 -…

宇宙学与河外天体物理 · 物理学 2017-03-22 D. Fadda , L. Yan , G. Lagache , A. Sajina , D. Lutz , S. Wuyts , D. T. Frayer , D. Marcillac , E. Le Floc'h , K. Caputi , H. W. W. Spoon , S. Veilleux , A. Blain , G. Helou

We report the initial results from a Spitzer GO-1 program to obtain low resolution, mid-infrared spectra of infrared luminous galaxies at z~1-2. This paper presents the spectra of eight sources observed with the Spitzer InfraRed…

天体物理学 · 物理学 2008-11-26 Lin Yan , R. Chary , L. Armus , H. Teplitz , G. Helou , D. Frayer , D. Fadda , J. Surace , P. Choi

Identifying Active Galactic Nuclei (AGNs) through their X-ray emission is efficient, but necessarily biased against X-ray-faint objects. We aim to characterize this bias by comparing X-ray-selected AGNs to the ones identified through…

We present results of the 2.5-5 {\mu}m spectroscopy of a sample of hard X-ray selected active galactic nuclei (AGNs) using the grism mode of the InfraRed Camera (IRC) on board the infrared astronomical satellite AKARI. The sample is…

宇宙学与河外天体物理 · 物理学 2013-02-01 A. Castro , T. Miyaji , T. Nakagawa , M. Shirahata , S. Oyabu , M. Imanishi , Y. Ueda , K. Ichikawa

We present deep $J$ and $H$-band images in the extended Great Observatories Origins Deep Survey-North (GOODS-N) field covering an area of 0.22 $\rm{deg}^{2}$. The observations were taken using WIRCam on the 3.6-m Canada France Hawaii…