An Overdensity of Lyman Break Galaxies Around the Hot Dust-Obscured Galaxy WISE J224607.56$-$052634.9

Abstract

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 \textit{r}-, \textit{i}-, and \textit{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 \cite{2004VOuchi} and \cite{2006Yoshida} 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 $\delta =5.8_{-1.9}^{+2.4}$ 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.

20 pages, 15 figures. The main results are in Figures 9 and 12. Accepted for publication in A&A

References in corpus (36)

• Subaru Deep Survey V. A Census of Lyman Break Galaxies at z=4 and 5 in the Subaru Deep Fields: Photometric Properties
• Rapidly star-forming galaxies adjacent to quasars at redshifts exceeding 6
• Quasars at z=6: the survival of the fittest
• The First Hyper-Luminous Infrared Galaxy Discovered by WISE
• Half of the Most Luminous Quasars May Be Obscured: Investigating the Nature of WISE-Selected Hot, Dust-Obscured Galaxies
• The Most Luminous Galaxies Discovered by WISE
• EIGER II. first spectroscopic characterisation of the young stars and ionised gas associated with strong H$\beta$ and [OIII] line-emission in galaxies at z=5-7 with JWST
• Submillimeter Follow-up of WISE-Selected Hyperluminous Galaxies
• EIGER I. a large sample of [OIII]-emitting galaxies at $5.3<z<6.9$ and direct evidence for local reionization by galaxies
• ALMA Observations Show Major Mergers Among the Host Galaxies of Fast-growing, High-redshift Supermassive Black Holes
• NuSTAR and XMM-Newton Observations of Luminous, Heavily Obscured, WISE-Selected Quasars at z ~ 2
• The X-shooter/ALMA Sample of Quasars in the Epoch of Reionization. II. Black Hole Masses, Eddington Ratios, and the Formation of the First Quasars
• A Morphological Classification Model to Identify Unresolved PanSTARRS1 Sources: Application in the ZTF Real-Time Pipeline
• A SPectroscopic survey of biased halos In the Reionization Era (ASPIRE): JWST Reveals a Filamentary Structure around a z=6.61 Quasar
• The Habitat Segregation between Lyman Break Galaxies and Lyman alpha Emitters around a QSO at z~5
• The primordial environment of super massive black holes: large scale galaxy overdensities around $z\sim 6$ QSOs with LBT
• Submillimetre observations of WISE-selected high-redshift, luminous, dusty galaxies
• No overdensity of Lyman Alpha Emitting Galaxies around a quasar at z~5.7
• Three Lyman-alpha emitting galaxies within a quasar proximity zone at z=5.8
• No excess of bright galaxies around the redshift 7.1 quasar ULAS J1120+0641
• The hidden quasar nucleus of a WISE-selected, hyperluminous, dust-obscured galaxy at z ~ 2.3
• The web of the Giant: spectroscopic confirmation of a Large Scale Structure around the z=6.31 quasar SDSS J1030+0524
• The primordial environment of supermassive black holes (II): deep Y and J band images around the z=6.3 quasar SDSS J1030+0524
• HST Grism Confirmation of Two $z\sim 2$ Structures from the Clusters Around Radio-Loud AGN (CARLA) Survey
• Fast Outflows in Hot Dust-Obscured Galaxies with Keck/NIRES
• Constraining galaxy overdensities around three z~6.5 quasars with ALMA and MUSE
• Spectral Classification and Ionized Gas Outflows in $z\sim 2$ WISE-Selected Hot Dust-Obscured Galaxies
• ALMA Observations of Quasar Host Galaxies at $z\simeq 4.8$
• Large-scale structure of Lyman break galaxies around a radio galaxy protocluster at z~4
• ALMA reveals large overdensity and strong clustering of galaxies in quasar environments at $z\sim 4$
• Detection of companion galaxies around hot dust-obscured hyper-luminous galaxy W0410-0913
• Overdensities of SMGs around WISE-selected, ultra-luminous, high-redshift AGN
• Imaging Polarization of the Blue-Excess Hot Dust-Obscured Galaxy WISE J011601.41-050504.0
• The SCUBA-2 850 $\mu m$ follow-up of WISE-selected, luminous dust-obscured quasars
• A Mixture of LBG Overdensities in the Fields of Three $6<z<7$ Quasars: Implications for the Robustness of Photometric Selection
• An overdensity of red galaxies around the hyperluminous dust-obscured quasar W1835$+$4355 at $z=2.3$

Cited by in corpus (8)

• Physical properties of hyperluminous, dust-obscured quasars at $z\sim 3$: multiwavelength Spectral Energy Distribution analysis and cold gas content revealed by ALMA
• A lack of LAEs within 5Mpc of a luminous quasar in an overdensity at z=6.9: potential evidence of quasar negative feedback at protocluster scales
• Connecting the growth of galaxies to the large-scale environment in a massive node of the Cosmic Web at z~3
• Overdensity of Lyman-Break Galaxy Candidates Around Hot Dust-Obscured Galaxies
• Searching for Low-Redshift Hot Dust-Obscured Galaxies
• CO spectra of the ISM in the Host Galaxies of the Most Luminous WISE-Selected AGNs
• Hot Diggity Dog: Simultaneous CO and Dust Modeling of the Most Luminous WISE Hot Dust-Obscured Galaxy Unveils Extreme Molecular Gas Excitation
• The $M_{\mathrm{BH}}-M_{\star }$ Relation of the hyperluminous Dust-obscured Quasars up to $z\sim 4$