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A Herschel Study of WISE Discovered Lyman-alpha Blobs: The missing linkquestionMark

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ESA Earth Online2026-06-22 收录
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Using data from the NASA Widefield Infrared Survey Explorer (WISE) mission coupled with deep optical spectroscopy, we have discovered a new population of dusty zvirgul2 galaxies surrounded by large spatially extended Lymanalphaemission (40100kpc). These galaxies have redder midIR colors than any other highz dusty populations, inferred IR luminosities of L_FIR>10^13, are unlensed, and are experiencing intense AGN/supernova feedback. These unique properties, and rarity on the sky, make them strong candidates for being one of the ..missing links. in the evolution of massive ellipticals. They have opened up a new regime where spatially extended Lyalpha and large amounts of dust are likely linked at the key transition from a dusty starburst to a QSO. We request 5.6 hours to obtain HerschelPACS and SPIRE imaging of *all* 18 spectroscopically confirmed WISE Lyalpha blobs. Herschel is the only facility that fully probes the peak of the bolometric emission at this redshift. These observations are required in order to 1) derive precise FIR luminosities 2) place robust constraints on the starburst and AGN components 3) study how feedback effects the shape of farIR seds at highz 4) uncover what is driving the winds responsible for powering the Lyalpha clouds around these dusty galaxies and 5) place this new class of extreme object in context with the other well studied zvirgul2 dusty galaxies. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]

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European Space Agency
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