Please use this identifier to cite or link to this item: https://research.matf.bg.ac.rs/handle/123456789/59
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dc.contributor.authorPopović, L. Čen_US
dc.contributor.authorMoiseev, A. V.en_US
dc.contributor.authorMediavilla, E.en_US
dc.contributor.authorJovanović, P.en_US
dc.contributor.authorIlić, Draganaen_US
dc.contributor.authorKova Čević, J.en_US
dc.contributor.authorMuñoz, J. A.en_US
dc.date.accessioned2022-08-06T15:18:29Z-
dc.date.available2022-08-06T15:18:29Z-
dc.date.issued2010-10-01-
dc.identifier.issn20418205en
dc.identifier.urihttps://research.matf.bg.ac.rs/handle/123456789/59-
dc.description.abstractWe report the new spectroscopic observations of the gravitational lens RXJ 021+4529 with the multi-mode focal reducer SCORPIO of the SAO RAS 6 m telescope. The new spectral observations were compared with the previously observed spectra of components A and B of RXJ 0921+4529, i.e., the same components observed in different epochs. We found a significant difference in the spectrum between the components that cannot be explained with microlensing and/or spectral variation. We conclude that RXJ 0921+4529 is a binary quasar system, where redshifts of quasars A and B are 1.6535 ± 0.0005 and 1.6625 ± 0.0015, respectively. © 2010. The American Astronomical Society. All rights reserved.en
dc.relation.ispartofAstrophysical Journal Lettersen_US
dc.subjectGalaxies: activeen
dc.subjectQuasars: emission linesen
dc.titleRXJ 0921+4529: A binary quasar or a gravitational lens?en_US
dc.typeArticleen_US
dc.identifier.doi10.1088/2041-8205/721/2/L139-
dc.identifier.scopus2-s2.0-78649309722-
dc.identifier.urlhttps://api.elsevier.com/content/abstract/scopus_id/78649309722-
dc.contributor.affiliationAstronomyen_US
dc.relation.firstpageL139en_US
dc.relation.lastpageL142en_US
dc.relation.volume721en_US
dc.relation.issue2en_US
item.openairetypeArticle-
item.cerifentitytypePublications-
item.fulltextNo Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextnone-
crisitem.author.deptAstronomy-
crisitem.author.orcid0000-0002-1134-4015-
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