Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/26827
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Giannini, E. | en_US |
dc.contributor.author | Schmidt, R. W. | en_US |
dc.contributor.author | Wambsganss, J. | en_US |
dc.contributor.author | Alsubai, K. | en_US |
dc.contributor.author | Andersen, J. M. | en_US |
dc.contributor.author | Anguita, T. | en_US |
dc.contributor.author | Bozza, V. | en_US |
dc.contributor.author | Bramich, D. M. | en_US |
dc.contributor.author | Browne, P. | en_US |
dc.contributor.author | Calchi Novati, S. | en_US |
dc.contributor.author | Damerdji, Y. | en_US |
dc.contributor.author | Diehl, C. | en_US |
dc.contributor.author | Dodds, P. | en_US |
dc.contributor.author | Dominik, M. | en_US |
dc.contributor.author | Elyiv, A. | en_US |
dc.contributor.author | Fang, X. | en_US |
dc.contributor.author | Figuera Jaimes, R. | en_US |
dc.contributor.author | Finet, F. | en_US |
dc.contributor.author | Gerner, T. | en_US |
dc.contributor.author | Gu, S. | en_US |
dc.contributor.author | Hardis, S. | en_US |
dc.contributor.author | Harpsøe, K. | en_US |
dc.contributor.author | Hinse, T. C. | en_US |
dc.contributor.author | Hornstrup, A. | en_US |
dc.contributor.author | Hundertmark, M. | en_US |
dc.contributor.author | Jessen-Hansen, J. | en_US |
dc.contributor.author | Jørgensen, U. G. | en_US |
dc.contributor.author | Juncher, D. | en_US |
dc.contributor.author | Kains, N. | en_US |
dc.contributor.author | Kerins, E. | en_US |
dc.contributor.author | Korhonen, H. | en_US |
dc.contributor.author | Liebig, C. | en_US |
dc.contributor.author | Lund, M. N. | en_US |
dc.contributor.author | Lundkvist, M. S. | en_US |
dc.contributor.author | Maier, G. | en_US |
dc.contributor.author | Mancini, L. | en_US |
dc.contributor.author | Masi, G. | en_US |
dc.contributor.author | Mathiasen, M. | en_US |
dc.contributor.author | Penny, M. | en_US |
dc.contributor.author | Proft, S. | en_US |
dc.contributor.author | Rabus, M. | en_US |
dc.contributor.author | Rahvar, S. | en_US |
dc.contributor.author | RICCI, DAVIDE | en_US |
dc.contributor.author | Scarpetta, G. | en_US |
dc.contributor.author | Sahu, K. | en_US |
dc.contributor.author | Schäfer, S. | en_US |
dc.contributor.author | Schönebeck, F. | en_US |
dc.contributor.author | Skottfelt, J. | en_US |
dc.contributor.author | Snodgrass, C. | en_US |
dc.contributor.author | Southworth, J. | en_US |
dc.contributor.author | Surdej, J. | en_US |
dc.contributor.author | Tregloan-Reed, J. | en_US |
dc.contributor.author | Vilela, C. | en_US |
dc.contributor.author | Wertz, O. | en_US |
dc.contributor.author | Zimmer, F. | en_US |
dc.date.accessioned | 2020-08-26T08:46:14Z | - |
dc.date.available | 2020-08-26T08:46:14Z | - |
dc.date.issued | 2017 | en_US |
dc.identifier.issn | 0004-6361 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/26827 | - |
dc.description.abstract | Aims: We present V and R photometry of the gravitationally lensed quasars WFI 2033-4723 and HE 0047-1756. The data were taken by the MiNDSTEp collaboration with the 1.54 m Danish telescope at the ESO La Silla observatory from 2008 to 2012. <BR /> Methods: Differential photometry has been carried out using the image subtraction method as implemented in the HOTPAnTS package, additionally using GALFIT for quasar photometry. Results: The quasar WFI 2033-4723 showed brightness variations of order 0.5 mag in V and R during the campaign. The two lensed components of quasar HE 0047-1756 varied by 0.2-0.3 mag within five years. We provide, for the first time, an estimate of the time delay of component B with respect to A of ∆t = (7.6 ± 1.8) days for this object. We also find evidence for a secular evolution of the magnitude difference between components A and B in both filters, which we explain as due to a long-duration microlensing event. Finally we find that both quasars WFI 2033-4723 and HE 0047-1756 become bluer when brighter, which is consistent with previous studies. Based on data collected by MiNDSTEp with the Danish 1.54 m telescope at the ESO La Silla observatory. | en_US |
dc.language.iso | eng | en_US |
dc.title | MiNDSTEp differential photometry of the gravitationally lensed quasars WFI 2033-4723 and HE 0047-1756: microlensing and a new time delay | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/201527422 | en_US |
dc.identifier.scopus | 2-s2.0-85007348650 | en_US |
dc.identifier.isi | 000392392900016 | en_US |
dc.identifier.url | https://www.aanda.org/articles/aa/abs/2017/01/aa27422-15/aa27422-15.html | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 597 | en_US |
dc.relation.firstpage | A49 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.contributor.country | ITA | en_US |
dc.contributor.country | GBR | en_US |
dc.contributor.country | DEU | en_US |
dc.contributor.country | BEL | en_US |
dc.contributor.country | DNK | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | ASTRONOMY & ASTROPHYSICS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2017A&A...597A..49G | en_US |
dc.description.apc | no | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.orcid | 0000-0002-9790-0552 | - |
crisitem.journal.journalissn | 0004-6361 | - |
crisitem.journal.ance | E016240 | - |
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