Overdensity of SubMillimiter Galaxies in the GJ526 field mapped with the NIKA2 camera

De Petris, M., Lestrade, J.-F., Adam, R., Ade, P. ORCID: https://orcid.org/0000-0002-5127-0401, Ajeddig, H., André, P., Artis, E., Aussel, H., Beelen, A., Benoît, A., Berta, S., Bing, L., Bourrion, O., Calvo, M., Catalano, A., Coulais, A., De Petris, M., Désert, F.-X., Doyle, S., Driessen, E. F. C., Gomez, A., Goupy, J., Kéruzoré, F., Kramer, C., Ladjelate, B., Lagache, G., Leclercq, S., Macías-Pérez, J.-F., Maury, A., Mauskopf, P., Mayet, F., Monfardini, A., Muñoz-Echeverría, M., Perotto, L., Pisano, G., Ponthieu, N., Revéret, V., Rigby, A. J., Ritacco, A., Romero, C., Roussel, H., Ruppin, F., Schuster, K., Shu, S., Sievers, A., Tucker, C. ORCID: https://orcid.org/0000-0002-1851-3918, Zylka, R., Ferragamo, A. and Mayet, F. 2022. Overdensity of SubMillimiter Galaxies in the GJ526 field mapped with the NIKA2 camera. EPJ Web of Conferences 257 , 00027. 10.1051/epjconf/202225700027

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Abstract

Using the NIKA2 dual band millimeter camera installed on the IRAM30m telescope, we have mapped a relatively large field (~ 70 arcmin2) in the direction of the star GJ526 to investigate the nature of the sources found with the MAMBO camera at 1.2 mm ten years earlier. We have found that they must be dust-obscured galaxies (SMGs) in the background beyond the star. The new NIKA2 map at 1.15 mm reveals additional sources and, in fact, an overdensity of SMGs predominantly distributed along a filament-like structure in projection on the sky across the whole observed field. We speculate this might be a cosmic filament at high redshift as revealed in cosmological hydrodynamical simulations. Measurement of spectroscopic redshifts of the SMGs in the candidate filament is required now for a definitive confirmation of the nature of the structure.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Physics and Astronomy
Publisher:	EDP Sciences
ISSN:	2100-014X
Date of First Compliant Deposit:	9 March 2023
Last Modified:	03 May 2023 08:49
URI:	https://orca.cardiff.ac.uk/id/eprint/157621

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