Browsing by Author "Guaita, Lucía"
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- ItemClustering and descendants of MUSYC galaxies at z < 1.5(2010) Padilla, Nelson; González Reyes, Roberto; Guaita, Lucía; Infante Lira, Leopoldo
- ItemExploring the intersection of Lyman-U Emitters & Lyman Break Galaxies behind the strongly lensed clusters : Abell370, Abell2744 and MACS0416(2021) Prieto Lyon, Gonzalo; Bauer, Franz Erik; Guaita, Lucía; Pontificia Universidad Católica de Chile. Instituto de AstrofísicaIn this thesis, we present a study of star-forming galaxies between redshifts 2.9-6.7 split among four categories: Pure LAEs (73 galaxies) without UV detection; Pure LBGs (1015 galaxies) without Lyman-a detection; LAE-LBGs (193 galaxies), with both Lyman break and Lyman-a detected; and Other SFGs without any of these signatures (459 galaxies). We use Multi-Unit Spectroscopic Explorer (MUSE) and legacy Hubble Space Telescope (HST) data of the three Hubble Frontier Fields lensing clusters A370, A2744 and MACS0416, reaching magnitudes as faint as M1500 ≈ −13. We study the continuum and emission-line parameters of our sample, with the goal of finding and understanding any intrinsic differences between the aforementioned regimes of SFGs. We report a great diversity of high-redshift galaxies in the Lyman-a - M1500 plane, with a lack of massive galaxies above the SFR(Lya)=SFR(UV) line at M1500 < −18, with most pure LAEs near this line and log(Llya)<42.0. We measure the UV slope of pure LBGs and LAE-LBGs, with median values of ß=-1.75 and ß=-2.44 respectively, meaning that LAEs overall are near the dust-free domain while pure LBGs tend to be redder, and hence presumably more dust-obscured and/or older, the former being one of the probable reasons for their lack of Lyman-a; SFGs without LB or Lya show redder median slopes of ß=-1.59. LAE-LBGs tend to have a stronger sSFR than pure LBGs and other SFGs by a factor of 2 at every studied redshift. We find slight differences between the two LAE populations, with LAE-LBGs showing broader Lyman-a profiles, but further radiative transfer simulations are needed to clarify the contribution of HI velocity and column density.
- ItemLy alpha-EMITTING GALAXIES AT z=2.1 IN ECDF-S: BUILDING BLOCKS OF TYPICAL PRESENT-DAY GALAXIES?(2010) Guaita, Lucía; Padilla, Nelson; Francke Henríquez, Harold Johanns Phillippe
- ItemLyα emitting Galaxies at z = 2.1 : Stellar Masses, Dust, and Star Formation Histories from Spectral Energy Distribution Fitting.(2011) Guaita, Lucía; Padilla, Nelson; Treister, Ezequiel; Acquaviva, Viviana; Gawiser, Eric; Bond, Nicholas A.; Ciardullo, Robin; Kurczynski, Peter; Gronwall, Caryl; Lira, Paulina; Schawinski, Kevin
- ItemMagellan/MMIRS near-infrared multi-object spectroscopy of nebular emission from star-forming galaxies at 2 < z < 3(2013) Guaita, Lucía; Francke Henríquez, Harold Johanns Phillippe; Bauer, Franz Erik; Padilla, Nelson
- Itemmips 24 mu m observations of the hubble deep field south: probing the ir-radio correlation of galaxies at z > 1(2010) Huynh, MT.; Guaita, Lucía
- 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 Evolution of Lyα-emitting Galaxies between z = 2.1 and z = 3.1(2012) Ciardullo, R.; Guaita, Lucía; Padilla, Nelson; Francke Henríquez, Harold Johanns Phillippe; Treister, Ezequiel; Gronwall, Caryl; Wolf, Christopher; McCathran, Emily; Bond, N.; Gawiser, Eric.; Feldmeier, John J.; Ciardullo, R.; Guaita, Lucía; Padilla, Nelson; Francke Henríquez, Harold Johanns Phillippe; Treister, Ezequiel; Gronwall, Caryl; Wolf, Christopher; McCathran, Emily; Bond, N.; Gawiser, Eric.; Feldmeier, John J.
- ItemThe Intergalactic medium transmission towards z>4 galaxies with VANDELS and the impact of dust attenuation(2020) Thomas, R.; Pentericci, L.; Le Fevre, O.; Zamorani, G.; Schaerer, D.; Amorin, R.; Castellano, M.; Carnall, A. C.; Cristiani, S.; Guaita, Lucía; Cullen, F.; Finkelstein, S. L.; Fontanot, F.; Hibon, P.; Hathi, N.; Fynbo, J. P. U.; Khusanova, Y.; Koekemoer, A. M.; McLeod, D.; McLure, R. J.; Marchi, F.; Pozzetti, L.; Saxena, A.; Talia, M.; Bolzonella, M.
- ItemTO STACK OR NOT TO STACK : SPECTRAL ENERGY DISTRIBUTION PROPERTIES OF Lyα-EMITTING GALAXIES AT z=2.1(2014) Vargas, Carlos J.; Bish, Hannah; Acquaviva, Viviana; Gawiser, Eric; Finkelstein, Steven L.; Ciardullo, Robin; Ashby, Matthew L. N.; Feldmeier, John; Ferguson, Henry; Padilla, Nelson; Gronwall, Caryl; Guaita, Lucía; Hagen, Alex; Koekemoer, Anton; Kurczynski, Peter; Newman, Jeffrey A.