SIMBAD references

2011MNRAS.415.3081I - Mon. Not. R. Astron. Soc., 415, 3081-3096 (2011/August-3)

Detection of an ultrabright submillimetre galaxy in the Subaru/XMM–Newton deep field using AzTEC/ASTE.

IKARASHI S., KOHNO K., AGUIRRE J.E., ARETXAGA I., ARUMUGAM V., AUSTERMANN J.E., BOCK J.J., BRADFORD C.M., CIRASUOLO M., EARLE L., EZAWA H., FURUSAWA H., FURUSAWA J., GLENN J., HATSUKADE B., HUGHES D.H., IONO D., IVISON R.J., JOHNSON S., KAMENETZKY J., KAWABE R., LUPU R., MALONEY P., MATSUHARA H., MAUSKOPF P.D., MOTOHARA K., MURPHY E.J., NAKAJIMA K., NAKANISHI K., NAYLOR B.J., NGUYEN H.T., PERERA T.A., SCOTT K.S., SHIMASAKU K., TAKAGI T., TAKATA T., TAMURA Y., TANAKA K., TSUKAGOSHI T., WILNER D.J., WILSON G.W., YUN M.S. and ZMUIDZINAS J.

Abstract (from CDS):

We report on the detection of an extremely bright (∼37 mJy at 1100 µm and ∼91 mJy at 880 µm) submillimetre galaxy (SMG), AzTEC-ASTE-SXDF1100.001 (hereafter referred to as SXDF1100.001 or Orochi), discovered in the 1100 µm observations of the Subaru/XMM–Newton Deep Field using AzTEC on ASTE. Subsequent CARMA 1300-µm and SMA 880-µm observations successfully pinpoint the location of Orochi and suggest that it has two components, one extended [full width at half-maximum (FWHM) of ∼4 arcsec] and one compact (unresolved). Z-Spec on CSO has also been used to obtain a wide-band spectrum from 190 to 308 GHz, although no significant emission/absorption lines were found. The derived upper limit to the line-to-continuum flux ratio is 0.1–0.3 (2σ) across the Z-Spec band.

Based on the analysis of the derived spectral energy distribution from optical to radio wavelengths of possible counterparts near the SMA/CARMA peak position, we suggest that Orochi is a lensed, optically dark SMG lying at z ∼ 3.4 behind a foreground, optically visible (but red) galaxy at z ∼ 1.4. The deduced apparent (i.e., no correction for magnification) infrared luminosity (L_IR) and star formation rate (SFR) are 6 {x} 10¹³ L_☉ and 11 000 M_☉/yr, respectively, assuming that the L_IR is dominated by star formation. These values suggest that Orochi will consume its gas reservoir within a short time-scale (3 {x} 10⁷ yr), which is indeed comparable to those in extreme starbursts like the centres of local ultraluminous infrared galaxies (ULIRGs). The cometary activity of Centaur P/2004 A1 (LONEOS)

Abstract Copyright: 2011 The Authors Monthly Notices of the Royal Astronomical Society2011 RAS

Journal keyword(s): galaxies: high-redshift - galaxies: ISM - galaxies: starburst - submillimetre: galaxies

Nomenclature: [IKA2011] SXDF1100.001 N=1.

Simbad objects: 30

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