ALMA DETECTED OVERDENSITY OF SUB-MILLIMETER SOURCES AROUND WISE/NVSS-SELECTED z similar to 2 DUSTY QUASARS

作者：Silva Andrea^*; Sajina Anna; Lonsdale Carol; Lacy Mark

来源：Astrophysical Journal Letters, 2015, 806(2): L25.

DOI：10.1088/2041-8205/806/2/L25

• galaxies: active
• galaxies: clusters: general
• galaxies: evolution

We study the environments of 49 WISE/NVSS-selected dusty, hyper-luminous, z similar to 2 quasars using the Atacama Large Millimeter/Sub-millimeter Array (ALMA) 345 GHz images. We find that 17 of the 49 WISE/NVSS sources show additional sub-millimeter galaxies within the ALMA primary beam, probing scales within similar to 150 kpc. We find a total of 23 additional sub-millimeter sources, four of which are in the field of a single WISE/NVSS source. The measured 870 mu m source counts are similar to 10x what is expected for unbiased regions, suggesting such hyper-luminous dusty quasars are excellent at probing high-density peaks.

• 出版日期2015-6-20
• 单位中国科学院国家天文台