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Overdensities around the most UV luminous QSOs at z=1-2

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Overdensities around the most UV luminous QSOs at z=1-2. / Stott, John.
2021. Poster session presented at Galaxy Cluster Formation II (GCF 2021) - Virtual Workshop.

Research output: Contribution to conference - Without ISBN/ISSN Posterpeer-review

Harvard

Stott, J 2021, 'Overdensities around the most UV luminous QSOs at z=1-2', Galaxy Cluster Formation II (GCF 2021) - Virtual Workshop, 14/06/21 - 18/06/21. https://doi.org/10.5281/zenodo.4955056

APA

Stott, J. (2021). Overdensities around the most UV luminous QSOs at z=1-2. Poster session presented at Galaxy Cluster Formation II (GCF 2021) - Virtual Workshop. https://doi.org/10.5281/zenodo.4955056

Vancouver

Stott J. Overdensities around the most UV luminous QSOs at z=1-2. 2021. Poster session presented at Galaxy Cluster Formation II (GCF 2021) - Virtual Workshop. doi: 10.5281/zenodo.4955056

Author

Stott, John. / Overdensities around the most UV luminous QSOs at z=1-2. Poster session presented at Galaxy Cluster Formation II (GCF 2021) - Virtual Workshop.

Bibtex

@conference{ef48f72690da41e5ac502025fe0d1109,
title = "Overdensities around the most UV luminous QSOs at z=1-2",
abstract = "Using the Quasar Sightline and Galaxy Evolution (QSAGE) survey, we demonstrate that the UV brightest quasars at z = 1 - 2 live in overdense environments. This is based on an analysis of deep Hubble Space Telescope WFC3 grism spectroscopy of the galaxies along the lines-of-sight to UV luminous quasars in the redshift range z = 1 − 2. Of the 12 quasar fields studied, 8 display evidence for a galaxy overdensity at the redshift of the quasar. One of the overdensities, PG0117+213 at z = 1.50, has potentially 36 spectroscopically confirmed members, consisting of 19 with secure redshifts and 17 with single-line redshifts, within a cylinder of radius ∼ 700 kpc. Its halo mass is estimated to be log(M/Msol) = 14.7. This demonstrates that spectroscopic and narrow-band observations around distant UV bright quasars may be an excellent route for discovering protoclusters. Our findings agree with previous hints from statistical observations of the quasar population and theoretical works, as feedback regulated black hole growth predicts a correlation between quasar luminosity and halo mass.",
author = "John Stott",
year = "2021",
month = jun,
day = "15",
doi = "10.5281/zenodo.4955056",
language = "English",
note = "Galaxy Cluster Formation II (GCF 2021) - Virtual Workshop ; Conference date: 14-06-2021 Through 18-06-2021",
url = "https://www.eso.org/sci/meetings/2021/GCF2021.html#:~:text=The%20aim%20of%20GCF2021%20is,assembling%20clusters%20and%20proto%2Dclusters.",

}

RIS

TY - CONF

T1 - Overdensities around the most UV luminous QSOs at z=1-2

AU - Stott, John

PY - 2021/6/15

Y1 - 2021/6/15

N2 - Using the Quasar Sightline and Galaxy Evolution (QSAGE) survey, we demonstrate that the UV brightest quasars at z = 1 - 2 live in overdense environments. This is based on an analysis of deep Hubble Space Telescope WFC3 grism spectroscopy of the galaxies along the lines-of-sight to UV luminous quasars in the redshift range z = 1 − 2. Of the 12 quasar fields studied, 8 display evidence for a galaxy overdensity at the redshift of the quasar. One of the overdensities, PG0117+213 at z = 1.50, has potentially 36 spectroscopically confirmed members, consisting of 19 with secure redshifts and 17 with single-line redshifts, within a cylinder of radius ∼ 700 kpc. Its halo mass is estimated to be log(M/Msol) = 14.7. This demonstrates that spectroscopic and narrow-band observations around distant UV bright quasars may be an excellent route for discovering protoclusters. Our findings agree with previous hints from statistical observations of the quasar population and theoretical works, as feedback regulated black hole growth predicts a correlation between quasar luminosity and halo mass.

AB - Using the Quasar Sightline and Galaxy Evolution (QSAGE) survey, we demonstrate that the UV brightest quasars at z = 1 - 2 live in overdense environments. This is based on an analysis of deep Hubble Space Telescope WFC3 grism spectroscopy of the galaxies along the lines-of-sight to UV luminous quasars in the redshift range z = 1 − 2. Of the 12 quasar fields studied, 8 display evidence for a galaxy overdensity at the redshift of the quasar. One of the overdensities, PG0117+213 at z = 1.50, has potentially 36 spectroscopically confirmed members, consisting of 19 with secure redshifts and 17 with single-line redshifts, within a cylinder of radius ∼ 700 kpc. Its halo mass is estimated to be log(M/Msol) = 14.7. This demonstrates that spectroscopic and narrow-band observations around distant UV bright quasars may be an excellent route for discovering protoclusters. Our findings agree with previous hints from statistical observations of the quasar population and theoretical works, as feedback regulated black hole growth predicts a correlation between quasar luminosity and halo mass.

U2 - 10.5281/zenodo.4955056

DO - 10.5281/zenodo.4955056

M3 - Poster

T2 - Galaxy Cluster Formation II (GCF 2021) - Virtual Workshop

Y2 - 14 June 2021 through 18 June 2021

ER -