Detection of companion galaxies around hot dust-obscured hyper-luminous galaxy W0410-0913

Ginolfi, M.; Piconcelli, E.; Zappacosta, L.; Jones, G. C.; Pentericci, L.; Maiolino, R.; Travascio, A.; Menci, Nicola; Carniani, Stefano; Rizzo, Francesca; Battaia, Fabrizio Arrigoni; Cantalupo, Sebastiano; Breuck, C. De; Graziani, Luca; Knudsen, K. K.; Laursen, Peter; Mainieri, V.; Schneider, Raffaella; Stanley, F.; Valiante, Rosa; Verhamme, Anne

doi:10.1038/s41467-022-32297-x

Cited by 14 publications

(12 citation statements)

References 73 publications

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“…At high redshift, there are now observations of a handful of other protoclusters sharing three key properties-the large stellar mass of the central galaxy and a large number of nearby companions and their high velocity dispersion-with J1652 (Shi et al 2021;Ginolfi et al 2022). For example, a powerful radio-loud AGN, PKS 1138-262, at z ∼ 2.2 is hosted by a massive galaxy with M * ∼ 10 12 M e (Seymour et al 2007;Hatch et al 2009), also known as the Spiderweb galaxy.…”

Section: Discussion and Summarymentioning

confidence: 99%

First Results from the JWST Early Release Science Program Q3D: Turbulent Times in the Life of a z ∼ 3 Extremely Red Quasar Revealed by NIRSpec IFU

Wylezalek

Vayner

Rupke

et al. 2022

ApJL

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Extremely red quasars, with bolometric luminosities exceeding 1047 erg s−1, are a fascinating high-redshift population that is absent in the local universe. They are the best candidates for supermassive black holes accreting at rates at or above the Eddington limit, and they are associated with the most rapid and powerful outflows of ionized gas known to date. They are also hosted by massive galaxies. Here we present the first integral field unit observations of a high-redshift quasar obtained by the Near Infrared Spectrograph on board the James Webb Space Telescope (JWST), which targeted SDSS J165202.64+172852.3, an extremely red quasar at z = 2.94. The JWST observations reveal extended ionized gas—as traced by [O iii] λ5007 Å—in the host galaxy of the quasar, its outflow, and the circumgalactic medium. The complex morphology and kinematics imply that the quasar resides in a very dense environment with several interacting companion galaxies within projected distances of 10–15 kpc. The high density of the environment and the large velocities of the companion galaxies suggest that this system may represent the core of a forming cluster of galaxies. The system is a good candidate for a merger of two or more dark matter halos, each with a mass of a few 1013 M ⊙, and potentially traces one of the densest knots at z ∼ 3.

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Section: Discussion and Summarymentioning

confidence: 99%

First Results from the JWST Early Release Science Program Q3D: Turbulent Times in the Life of a z ∼ 3 Extremely Red Quasar Revealed by NIRSpec IFU

Wylezalek

Vayner

Rupke

et al. 2022

ApJL

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“…To this end, we applied two line-finding algorithms to both the real and jack-knifed data sets: (1) the python-based line-finding algorithm used by Béthermin et al (2020) (see their Sect. 6) and Ginolfi et al (2022) and (2) the algorithm Findclumps, described in Walter et al (2016), which is available as part of the python library, Interferopy (Boogaard et al 2021) 3 . For the real data, we used the dirty image cubes and replicated the noise properties in the jack-knifed cubes as described in Sect.…”

Section: Likelihood Of Detecting Two Correlated Noise Peaksmentioning

confidence: 99%

To see or not to see a z ∼ 13 galaxy, that is the question

Kaasinen

Marrewijk

Popping

et al. 2023

A&A

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Context. Determining when the first galaxies formed remains an outstanding goal of modern observational astronomy. Theory and current stellar population models imply that the first galaxies formed at least at z = 14 − 15. But to date, only one galaxy at z > 13 (GS-z13-0) has been spectroscopically confirmed. Aims. The galaxy ‘HD1’ was recently proposed to be a z ∼ 13.27 galaxy based on its potential Lyman break and tentative [O III] 88 μm detection with ALMA. We hereby aim to test this scenario with new ALMA Band 4 observations of what would be the [C II] 158 μm emission if HD1 is at z ∼ 13.27. Methods. We carefully analyse the new ALMA Band 4 observations and re-analyse the existing ALMA Band 6 data on the source to determine the proposed redshift. Results. We find a tentative 4σ feature in the Band 4 data that is spatially offset by 1.″7 and spectrally offset by 190 km s−1 from the previously reported 3.8σ ‘[O III] 88 μm’ feature. Through various statistical tests, we demonstrate that these tentative features are fully consistent with both being random noise features. Conclusions. We conclude that we are more likely to be recovering noise features than both [O III] 88 μm and [C II] 158 μm emission from a source at z ∼ 13.27. Although we find no credible evidence of a z ∼ 13.27 galaxy, we cannot entirely rule out this scenario. Non-detections are also possible for a z ∼ 13 source with a low interstellar gas-phase metallicity or ionisation parameter and/or high gas density. Moreover, the new continuum and line upper limits provide no strong evidence for or against a lower-redshift scenario. Determining where and exactly what type of galaxy HD1 is, will now likely require JWST/NIRSpec spectroscopy.

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“…Recently, Ginolfi et al (2022) studied the environment of W0410-0913, a Hot DOG at z = 3.631, using VLT/MUSE observations, and also concluded that this Hot DOG lives in a dense Fig. 8.…”

Section: Overdensities Around Hot Dogsmentioning

confidence: 99%

“…Multiwavelength observations of Hot DOGs have statistically shown that these objects are likely to live in dense environments (Jones et al 2014;Assef et al 2015;Penney et al 2019). More recently, Luo et al (2022) found an overdensity of distant red galaxies (DRGs) around a Hot DOG at z = 2.3, while Ginolfi et al (2022) revealed an overdensity of LAEs in the environment of a z = 3.6 Hot DOG with VLT/MUSE observations. All of this evidence suggests that Hot DOGs exist in overdense regions of the Universe, where significant gas accretion can be maintained and mergers could lead to large-scale obscuration.…”

Section: Introductionmentioning

confidence: 99%

An overdensity of Lyman break galaxies around the hot dust-obscured galaxy WISE J224607.56−052634.9

Zewdie¹,

Assef²,

Mazzucchelli³

et al. 2023

A&A

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We report the identification of Lyman Break Galaxy (LBG) candidates around the most luminous Hot Dust-Obscured Galaxy (Hot DOG) known, WISE J224607.56−052634.9 (W2246−0526) at z = 4.601, using deep r-, i-, and z-band imaging from the Gemini Multi-Object Spectrograph South (GMOS-S). We use the surface density of LBGs to probe the Mpc-scale environment of W2246−0526 to characterize its richness and evolutionary state. We identify LBG candidates in the vicinity of W2246−0526 using the selection criteria developed by Ouchi et al. (2004) and Yoshida et al. (2006) in the Subaru Deep Field and in the Subaru XMM-Newton Deep Field, slightly modified to account for the difference between the filters used, and we find 37 and 55 LBG candidates, respectively. Matching to the z-band depths of those studies, this corresponds to δ = 5.8 +2.4 −1.9 times the surface density of LBGs expected in the field. Interestingly, the Hot DOG itself, as well as a confirmed neighbor, do not satisfy either LBG selection criteria, suggesting we may be missing a large number of companion galaxies. Our analysis shows that we are most likely only finding those with higher-than-average IGM optical depth or moderately high dust obscuration. The number density of LBG candidates is not concentrated around W2246−0526, suggesting either an early evolutionary stage for the proto-cluster or that the Hot DOG may not be the most massive galaxy, or that the Hot DOG may be affecting the IGM transparency in its vicinity. The overdensity around W2246−0526 is comparable to overdensities found around other Hot DOGs and is somewhat higher than typically found for radio galaxies and luminous quasars at a similar redshift.

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Detection of companion galaxies around hot dust-obscured hyper-luminous galaxy W0410-0913

Cited by 14 publications

References 73 publications

First Results from the JWST Early Release Science Program Q3D: Turbulent Times in the Life of a z ∼ 3 Extremely Red Quasar Revealed by NIRSpec IFU

First Results from the JWST Early Release Science Program Q3D: Turbulent Times in the Life of a z ∼ 3 Extremely Red Quasar Revealed by NIRSpec IFU

To see or not to see a z ∼ 13 galaxy, that is the question

An overdensity of Lyman break galaxies around the hot dust-obscured galaxy WISE J224607.56−052634.9

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