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16484

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DataCite Commons2023-04-21 更新2025-04-15 收录
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http://esdcdoi.esac.esa.int/doi/html/data/astronomy/hst/16484.html
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资源简介:
A recently discovered z = 5.04 lensed galaxy comma COOLJ1241+2219 comma has an AB magnitude z = 20.5 comma making it is the brightest known z > 5 galaxy at OIR wavelengths by a factor of five. It is lensed by a galaxy cluster with spectroscopic z = 1.002 comma and a preliminary lens model indicates that the mass of that cluster core is virgul10elev14 solar masses. The observed rest-wavelength UV of the lensed galaxy indicates formation of massive stars in the recent past comma yet an upper limit of 2 mJy-beam at 314 GHz from the SMA indicates there is little dust in a warm neutral medium. It is not comma therefore comma one of the usual SMG detected by millimeter-wave and FIR surveys comma it is something newdoublePoint a galaxy in the early Universe where star formation is already in decline. We propose a first look of this source in the radio at the high end of the VLA Ka band comma which includes the CO J=2-1 line comma for three 4-hour sessions that should detect the galaxy.s remaining star-forming molecular material. A three-orbit joint request to HST will provide data to refine the lens model and allow inversion of the lens to reconstruct the unlensed galaxy.
提供机构:
European Space Agency
创建时间:
2023-04-21
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