A variable active galactic nucleus at z=2.06 triply-imaged by the galaxy cluster MACS J0035.4-2015

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dc.contributor.authorFurtak, Lukas J.
dc.contributor.authorMainali, Ramesh
dc.contributor.authorZitrin, Adi
dc.contributor.authorPlat, Adele
dc.contributor.authorFujimoto, Seiji
dc.contributor.authorDonahue, Megan
dc.contributor.authorNelson, Erica J.
dc.contributor.authorBauer, Franz E.
dc.contributor.authorUematsu, Ryosuke
dc.contributor.authorCaminha, Gabriel B.
dc.contributor.authorAndrade-Santos, Felipe
dc.contributor.authorBradley, Larry D.
dc.contributor.authorCaputi, Karina, I
dc.contributor.authorCharlot, Stephane
dc.contributor.authorChevallard, Jacopo
dc.contributor.authorCoe, Dan
dc.contributor.authorCurtis-Lake, Emma
dc.contributor.authorEspada, Daniel
dc.contributor.authorFrye, Brenda L.
dc.contributor.authorKnudsen, Kirsten K.
dc.contributor.authorKoekemoer, Anton M.
dc.contributor.authorKohno, Kotaro
dc.contributor.authorKokorev, Vasily
dc.contributor.authorLaporte, Nicolas
dc.contributor.authorLee, Minju M.
dc.contributor.authorLemaux, Brian C.
dc.contributor.authorMagdis, Georgios E.
dc.contributor.authorSharon, Keren
dc.contributor.authorStark, Daniel P.
dc.contributor.authorSu, Yuanyuan
dc.contributor.authorSuess, Katherine A.
dc.contributor.authorUeda, Yoshihiro
dc.contributor.authorUmehata, Hideki
dc.contributor.authorVidal-Garcia, Alba
dc.contributor.authorWu, John F.
dc.date.accessioned2025-01-20T20:08:46Z
dc.date.available2025-01-20T20:08:46Z
dc.date.issued2023
dc.description.abstractWe report the discovery of a triply imaged active galactic nucleus (AGN), lensed by the galaxy cluster MACS J0035.4-2015 (z(d) = 0.352). The object is detected in Hubble Space Telescope imaging taken for the RELICS program. It appears to have a quasi-stellar nucleus consistent with a point-source, with a de-magnified radius of r(e) less than or similar to 100 pc. The object is spectroscopically confirmed to be an AGN at z spec = 2.063 +/- 0.005 showing broad rest-frame UV emission lines, and detected in both X-ray observations with Chandra and in ALCS ALMA band 6 (1.2 mm) imaging. It has a relatively faint rest-frame UV luminosity for a quasar-like object, M (UV, 1450) = -19.7 +/- 0.2. The object adds to just a few quasars or other X-ray sources known to be multiply lensed by a galaxy cluster. Some diffuse emission from the host galaxy is faintly seen around the nucleus, and there is a faint object nearby sharing the same multiple-imaging symmetry and geometric redshift, possibly an interacting galaxy or a star-forming knot in the host. We present an accompanying lens model, calculate the magnifications and time delays, and infer the physical properties of the source. We find the rest-frame UV continuum and emission lines to be dominated by the AGN, and the optical emission to be dominated by the host galaxy of modest stellar mass M-* similar or equal to 10(9.2) M-circle dot. We also observe some variation in the AGN emission with time, which may suggest that the AGN used to be more active. This object adds a low-redshift counterpart to several relatively faint AGN recently uncovered at high redshifts with HST and JWST.
dc.fuente.origenWOS
dc.identifier.doi10.1093/mnras/stad1321
dc.identifier.eissn1365-2966
dc.identifier.issn0035-8711
dc.identifier.urihttps://doi.org/10.1093/mnras/stad1321
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91936
dc.identifier.wosidWOS:000999132000012
dc.issue.numero4
dc.language.isoen
dc.pagina.final5151
dc.pagina.inicio5142
dc.revistaMonthly notices of the royal astronomical society
dc.rightsacceso restringido
dc.subjectgravitational lensing: strong
dc.subjectgalaxies: clusters: individual: MACS J0035.4-2015
dc.subjectgalaxies: nuclei
dc.subjectquasars
dc.subjectgalaxies: Seyfert
dc.subjectcosmology: observations
dc.titleA variable active galactic nucleus at z=2.06 triply-imaged by the galaxy cluster MACS J0035.4-2015
dc.typeartículo
dc.volumen522
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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