@inproceedings{2489c4e51f0942b9bc2d5b47779d9048,
title = "Serendipitous discovery of an “ALMA-only” galaxy at 5 < z < 6 in an ALMA 3-mm survey",
abstract = "We discuss the serendipitous discovery of a dusty high-redshift galaxy in a small (8 arcmin2) ALMA 3-mm survey Williams et al. (2019). The galaxy was previously unknown and is absent from existing multi-wavelength catalogs (“ALMA-only”). Using the ALMA position as prior, we perform forced deblended photometry to constrain its spectral energy distribution. The spectral energy distribution is well described by a massive (M∗ = 1010.8M) and highly obscured (AV ∼ 4) galaxy at redshift z = 5.5±1.1 with star formation rate ∼300 Myr−1. Our small survey area implies an uncertain but large contribution to the cosmic star formation rate density, similar to the contribution from all ultraviolet-selected galaxies combined at this redshift. This galaxy likely traces an abundant population of massive galaxies absent from current samples of infrared-selected or sub-millimeter galaxies, but with larger space densities, higher duty cycles, and significant contribution to the cosmic star-formation rate and stellar mass densities.",
keywords = "galaxies: evolution, galaxies: formation, galaxies: high-redshift",
author = "Williams, \{Christina C.\}",
note = "Publisher Copyright: {\textcopyright} International Astronomical Union 2020.; 352nd Symposium of the International Astronomical Union on Uncovering Early Galaxy Evolution in the ALMA and JWST Era ; Conference date: 03-06-2019 Through 07-06-2019",
year = "2020",
doi = "10.1017/S1743921320000605",
language = "English (US)",
series = "Proceedings of the International Astronomical Union",
publisher = "Cambridge University Press",
number = "352",
pages = "194--198",
editor = "\{da Cunha\}, Elisabete and \{da Cunha\}, Elisabete and Jacqueline Hodge and Jose Afonso and Laura Pentericci and David Sobral",
booktitle = "Proceedings of the International Astronomical Union",
edition = "352",
}