Browsing by Author "Anguita, T."
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- ItemALMA spectroscopic survey in the Hubble Ultra Deep Field: Continuum number counts, resolved 1.2-mm extragalactic background, and properties of the faintest dusty star forming galaxies(2016) Bauer, Franz Erik; Aravena, M.; Decarli, R.; Walter, F.; Da Cunha, E.; Carilli, C.; Daddi, E.; Elbaz, D.; Ivison, R.; Riechers, D.; Smail, I.; Weiss, A.; Anguita, T.; Bell, E.; Bertoldi, F.; Bacon, R.
- ItemALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Search for [CII] line and dust emission in 6 < z < 8 galaxies(2016) Aravena, M.; Decarli, R.; Walter, F.; Bouwens, R.; Oesch, P.; Carilli, C.; Bauer, Franz Erik; Da Cunha, E.; Daddi, E.; González, J.; Ivison, R.; Riechers, D.; Smail, I.; Swinbank, A.; Weiss, A.; Anguita, T.; Bacon, R.
- ItemCOSMOGRAIL XVIII. time delays of the quadruply lensed quasar WFI2033-4723(2019) Bonvin, V.; Millon, M.; Chan, J. H. -H.; Courbin, F.; Rusu, C. E.; Sluse, D.; Suyu, S. H.; Wong, K. C.; Fassnacht, C. D.; Marshall, P. J.; Treu, T.; Buckley-Geer, E.; Frieman, J.; Hempel, A.; Kim, S.; Lachaume, R.; Rabus, M.; Chao, D. C. -Y.; Chijani, M.; Gilman, D.; Gilmore, K.; Rojas, K.; Williams, P.; Anguita, T.; Kochanek, C. S.; Morgan, C.; Motta, V.; Tewes, M.; Meylan, G.We present new measurements of the time delays of WFI2033-4723. The data sets used in this work include 14 years of data taken at the 1.2 m Leonhard Euler Swiss telescope, 13 years of data from the SMARTS 1.3 m telescope at Las Campanas Observatory and a single year of high-cadence and high-precision monitoring at the MPIA 2.2 m telescope. The time delays measured from these different data sets, all taken in the R-band, are in good agreement with each other and with previous measurements from the literature. Combining all the time-delay estimates from our data sets results in Delta t(AB) = 36.2(-0.8)(+0.7) days (2.1% precision), Delta t(AC) = 23.3(-1.4)(+1.2) days (5.6%) and Delta t(BC) = 59.4(-1.3)(+1.3) days (2.2%). In addition, the close image pair A1-A2 of the lensed quasars can be resolved in the MPIA 2.2 m data. We measure a time delay consistent with zero in this pair of images. We also explore the prior distributions of microlensing time-delay potentially affecting the cosmological time-delay measurements of WFI2033-4723. Our time-delay measurements are not precise enough to conclude that microlensing time delay is present or absent from the data. This work is part of a H0LiCOW series focusing on measuring the Hubble constant from WFI2033-4723.
- ItemCOSMOGRAIL: the cosmological monitoring of gravitational Lenses XVI. Time delays for the quadruply imaged quasar DES J0408-5354 with high-cadence photometric monitoring(2018) Courbin, F.; Bonvin, V.; Buckley-Geer, E.; Fassnacht, C. D.; Frieman, J.; Lin, H.; Marshall, P. J.; Suyu, S. H.; Treu, T.; Anguita, T.; Motta, V.; Meylan, G.; Paic, E.; Tewes, M.; Agnello, A.; Chao, D. C. -Y.; Chijani, M.; Gilman, D.; Ro
- ItemMicrolensing of the broad-line region in the quadruply imaged quasar HE0435-1223(2014) Braibant, L.; Hutsemekers, D.; Sluse, D.; Anguita, T.; Garcia-Vergara, C. J.Using infrared spectra of the z = 1.693 quadruply lensed quasar HE0435-1223 acquired in 2009 with the spectrograph SINFONI at the ESO Very Large Telescope, we have detected a clear microlensing effect in images A and D. While microlensing affects the blue and red wings of the H alpha line profile in image D very differently, it de-magnifies the line core in image A. The combination of these different effects sets constraints on the line-emitting region; these constraints suggest that a rotating ring is at the origin of the H alpha line. Visible spectra obtained in 2004 and 2012 indicate that the MgII line profile is microlensed in the same way as the H alpha line. Our results therefore favour flattened geometries for the low-ionization line-emitting region, for example, a Keplerian disk. Biconical models cannot be ruled out but require more fine-tuning. Flux ratios between the different images are also derived and confirm flux anomalies with respect to estimates from lens models with smooth mass distributions.
- ItemMiNDSTEp differential photometry of the gravitationally lensed quasars WFI 2033-4723 and HE 0047-1756: microlensing and a new time delay(2017) Giannini, E.; Schmidt, R. W.; Wambsganss, J.; Alsubai, K.; Andersen, J. M.; Anguita, T.; Bozza, V.; Bramich, D. M.; Browne, P.; Rabus, Markus
- ItemPhotometric classification of quasars from RCS-2 using Random Forest(2015) Carrasco, D.; Barrientos, Luis Felipe; Pichara Baksai, Karim Elías; Anguita, T.; Murphy, D. N. A.; Gilbank, D. G.; Gladders, M. D.; Yee, H. K. C.; Hsieh, B. C.; López, S.
- ItemSpectroscopic characterization of galaxy clusters in RCS-1 : spectroscopic confirmation, redshift accuracy, and dynamical mass-richness relation(2018) Gilbank, D.; Barrientos, Luis Felipe; Ellingson, E.; Blindert, K.; Yee, H.; Anguita, T.; Gladders, M.; Hall, P.; Hertling, G.; Infante Lira, Leopoldo; Yan, R.; Carrasco, M.; Garcia Vergara, Cristina Javiera; Dawson, K.
- ItemTDCOSMO II. Six new time delays in lensed quasars from high-cadence monitoring at the MPIA 2.2m telescope(2020) Millon, M.; Courbin, F.; Bonvin, V.; Buckley Geer, E.; Fassnacht, C. D.; Frieman, J.; Marshall, P. J.; Kim, Seoung Ha; Lachaume, Regis; Rabus, Markus; Suyu, S. H.; Treu, T.; Anguita, T.; Motta, V.; Agnello, A.; Chan, J. H. H.; Chao, D. C. Y.; Chijani, M.; Gilman, D.; Gilmore, K.; Lemon, C.; Lucey, J. R.; Melo, A.; Paic, E.; Rojas, K.; Sluse, D.; Williams, P. R.; Hempel, A.; Rabus, Markus
- ItemThe ALMA Frontier Fields Survey IV. Lensing-corrected 1.1 mm number counts in Abell 2744, MACS J0416.1-2403 and MACS J1149.5+2223(2018) Munoz Arancibia, A.M.; González López, Jorge; Ibar, E.; Bauer, Franz Erik; Carrasco, M.; Laporte, L.N.; Anguita, T.; Aravena, M.; Infante Lira, Leopoldo; Padilla, Nelson; Barrientos, Andrés F.; Bouwens, R.J.; Demarco, R.; Kneiss, R.; Nagar, N.; Romero-Cañizales, C.; Troncoso, P.; A. Zitrin
- ItemThe ALMA Frontier Fields Survey V. ALMA Stacking of Lyman-Break Galaxies in Abell 2744, Abell 370, Abell S1063, MACSJ0416.1-2403 and MACSJ1149.5+2223(2020) Carvajal, R.; Bauer, Franz Erik; Bouwens, R. J.; Oesch, P. A.; González López, Jorge; Anguita, T.; Aravena, M.; Demarco, R.; Guaita, Lucía; Infante Lira, Leopoldo; Kim, S.; Kneissl, R.; Koekemoer, A. M.; Messias, H.; Treister, Ezequiel; Villard, E.; Zitrin, A.; Troncoso, P.
- ItemThe ALMA Frontier Fields Survey VI. Lensing-corrected 1.1 mm number counts in Abell 2744, MACSJ0416.1-2403, MACSJ1149.5+2223, Abell 370, and Abell S1063(2023) Arancibia, A. M. Munoz; Gonzalez-Lopez, J.; Ibar, E.; Bauer, F. E.; Anguita, T.; Aravena, M.; Demarco, R.; Kneissl, R.; Koekemoer, A. M.; Troncoso-Iribarren, P.; Zitrin, A.Context. Probing the faint end of the number counts at millimeter wavelengths is important in order to identify the origin of the extragalactic background light in this regime. Aided by strong gravitational lensing, ALMA observations toward massive galaxy clusters have opened a window to probe this origin, allowing us to resolve sub-milliJansky dusty star-forming galaxies.
- ItemThe ALMA Frontier Fields Survey. IV. Lensing-corrected 1.1 mm number counts in Abell 2744, MACS J0416.1-2403, and MACS J1149.5+2223 (Corrigendum)(2019) Muñoz Arancibia, A. M.; González-López, J.; Ibar, E.; Bauer, F. E.; Carrasco, M.; Laporte, N.; Anguita, T.; Aravena, M.; Barrientos, F.; Bouwens, R. J.; Demarco, R.; Infante, L.; Kneissl, R.; Nagar, N.; Padilla, N.; Romero-Cañizales, C.; Troncoso, P.; Zitrin, A.