Browsing by Author "González López, Jorge"
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- ItemA resolved Lyman α profile with doubly peaked emission at z∼7(EDP Sciences, 2024) Moya Sierralta, Cristobal; González López, Jorge; Infante Lira Leopoldo; Barrientos Parra, Luis Felipe; Hu, W.; Malhotra, S.; Rhoads, J.; Wang, J.; Wold, I.; Zheng, Z.© The Authors 2024.Context. The epoch of reionization is a landmark in structure formation and galaxy evolution. How it happened is still not clear, especially regarding which population of objects was responsible for contributing the bulk of ionizing photons to this process. Doubly peaked Lyman-alpha profiles in this epoch are of particular interest since they hold information about the escape of ionizing radiation and the environment surrounding the source. Aims. We wish to understand the escape mechanisms of ionizing radiation in Lyα emitters during this time and the origin of a doubly peaked Lyman-alpha profile. We also wish to estimate the size of a potential ionized bubble. Methods. Using radiative transfer models, we fit the line profile of a bright Lyα emitter at z-≈-6.9 using various gas geometries. The line modeling reveals significant radiation escape from this system. Results. The studied source shows significant escape (fesc(Lyα) ≈ 0.8, as predicted by the best fitting radiative transfer model) and appears to inhabit an ionized bubble of radius Rb-0.8-0.3+0.5-pMpc(tage/108)1/3. Radiative transfer modeling predicts the line to be completely redward of the systemic redshift. We suggest the line morphology is produced by inflows, by multiple components emitting Lyα, or by an absorbing component in the red wing. Conclusions. We propose that CDFS-1-s profile has two red peaks produced by winds within the system. Its high fesc(Lyα) and the low-velocity offset from the systemic redshift suggest that the source is an active ionizing agent. Future observations will reveal whether a peak is present blueward of the systemic redshift or if multiple components produce the profile.
- ItemA Submillimeter Perspective on the GOODS Fields (SUPER GOODS). IV. The Submillimeter Properties of X-Ray Sources in the CDF-S(2019) Barger, A.J.; Cowie, L.L.; Bauer, Franz Erik; González López, Jorge
- ItemA. survey of the cold molecular gas in gravitationally lensed star-forming galaxies at z > 2(2016) Aravena, M.; Spilker, J.; Bethermin, M.; Bothwell, M.; Chapman, S.; De Breuck, C.; Furstenau, R.; González López, Jorge; Greve, T.; Litke, K.; Ma, J.; Malkan, M.; Marrone, D.; Murphy, E.; Stark, A.; Strandet, M.; Vieira, J.; Weiss, A.; Welikala, N.; Wong, G.; Collier, J.
- ItemALMA and GMRT Constraints on the Off-axis Gamma-Ray Burst 170817A from the Binary Neutron Star Merger GW170817.(2017) Kim, Sam; González López, Jorge; Bauer, Franz Erik; Schulze, Steve.; Resmi, L.; Higgins, A. B.; Ishwara-Chandra, C. H.; Gregorio-Monsalvo, I. de; Pasquale, M. de; Ugarte Postigo, A. de; Kann, D. A.; Kim, Sam; González López, Jorge; Bauer, Franz Erik; Schulze, Steve.; Resmi, L.; Higgins, A. B.; Ishwara-Chandra, C. H.; Gregorio-Monsalvo, I. de; Pasquale, M. de; Ugarte Postigo, A. de; Kann, D. A.
- ItemALMA OBSERVATION OF 158 mu m [C II] LINE AND DUST CONTINUUM OF A Z=7 NORMALLY STAR-FORMING GALAXY IN THE EPOCH OF REIONIZATION(2014) Ota, Kazuaki; Walter, Fabian; Ohta, Kouji; Hatsukade, Bunyo; Carilli, Chris L.; Da Cunha, Elisabete; González López, Jorge; Decarli, Roberto; Hodge, Jacqueline A.; Nagai, Hiroshi
- ItemALMA Resolves the Molecular Gas in a Young Low-metallicity Starburst Galaxy at z.=1.7(2017) González López, Jorge; Barrientos, Luis Felipe; Gladders, M. D.; Wuyts, Eva; Rigby, Jane; Sharon, Keren; Aravena, Manuel; Bayliss, Matthew B.; Ibar, Eduardo
- ItemALMA spectroscopic survey in the hubble ultra deep field: co luminosity functions and the evolution of the cosmic density of molecular gas(2016) Decarli, Roberto; Walter, Fabián; Aravena, Manuel; Bauer, Franz Erik; Infante Lira, Leopoldo; González López, Jorge
- ItemALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Molecular gas reservoirs in high-redshift galaxies(2016) Decarli, Roberto; Walter, Fabian; Aravena, Manuela; Carilli, Chris; Bouwens, Rychard; Da Cunha, Elisabete; Daddi, Emanuele; Bauer, Franz Erik; González López, Jorge
- ItemALMA spectroscopic survey in the hubble ultra deep field: survey description(2016) Walter, Fabián; Decarli, Roberto; Aravena, Manuel; Bauer, Franz Erik; Infante Lira, Leopoldo; González López, Jorge
- ItemMolecular gas budget of strongly magnified low-mass star-forming galaxies at cosmic noon(2024) Catán Valenzuela, Victoria Sofia; González López, Jorge; Solimano Gambardella, Manuel Antonio; Barrientos, Luis Felipe; Afruni, A.; Aravena, M.; Bayliss, M.; Hernández, J. A.; Ledoux, C.; Mahler, G.; Sharon, K.; Tejos, N.Aims. The aim of this study is to investigate the molecular gas content of strongly magnified low-mass star-forming galaxies (SFGs) around the cosmic noon period (z ∼ 2) through observations of carbon monoxide (CO) emission lines and dust continuum emission, both of which serve as tracers of molecular gas (H2). Methods. We observed 12 strongly lensed arcs with the Atacama Compact Array (ACA) to detect CO mid-J rotational transitions and dust continuum. Thanks to the strong lensing, we were able to probe the previously understudied low-mass regime. With a compiled set of observations, we recalibrated empirical relations between star formation rate density (ΣSFR) and the CO line ratios. We derived galaxy properties using spectral energy distribution fitting (SED). We also performed galaxy stacking to combine faint signals. In all cases, molecular gas masses were estimated using both tracers. Results. We detected CO emission in 3 of the 12 arcs and dust continuum emission in another 3. The obtained H2 masses indicate that most of these galaxies (M* < 1010.7 M⊙) have lower molecular gas fractions and shorter depletion times compared to expectations from established scaling relations at these redshifts. We explored several possible explanations for this gas deficit, including uncertainties in mass estimates, effects of low-metallicity environments, larger atomic gas reservoirs in low-mass systems, and the possibility that these represent low-mass analogs of main sequence starburst (MS SBs) galaxies that are undergoing sustained star formation due to gas compaction despite low overall gas fractions. Conclusions. We conclude that these mass and metallicity regimes present a molecular gas deficit. Our results suggest that this deficit is likely due to a significant amount of atomic gas, which our stacking indicates is about 91% of the total gas. However, this estimation might be an upper limit, as the possibility remains that our galaxies contain CO-dark gas.
- ItemMulti-messenger Observations of a Binary Neutron Star Merger.(2017) Abbott, B. P.; Kim, Sam; Bauer, Franz Erik; González López, Jorge; Abbott, R.; Abbott, T. D.; Acernese, F.; Ackley, K.; Adams Wrighton, Christopher William; Adams, T.; Addesso, P.; Abbott, B. P.; Kim, Sam; Bauer, Franz Erik; González López, Jorge; Abbott, R.; Abbott, T. D.; Acernese, F.; Ackley, K.; Adams Wrighton, Christopher William; Adams, T.; Addesso, P.; Abbott, B. P.; Kim, Sam; Bauer, Franz Erik; González López, Jorge; Abbott, R.; Abbott, T. D.; Acernese, F.; Ackley, K.; Adams Wrighton, Christopher William; Adams, T.; Addesso, P.; Abbott, B. P.; Kim, Sam; Bauer, Franz Erik; González López, Jorge; Abbott, R.; Abbott, T. D.; Acernese, F.; Ackley, K.; Adams Wrighton, Christopher William; Adams, T.; Addesso, P.
- ItemSEARCH FOR [CII] EMISSION IN z=6.5-11 STAR-FORMING GALAXIES(2014) González López, Jorge; Riechers, Dominik A.; Decarli, Roberto; Walter, Fabian; Vallini, Livia; Neri, Roberto; Bertoldi, Frank; Bolatto, Alberto D.; Carilli, Christopher L.; Cox, Pierre; Cunha, Elisabete da; Ferrara, Andrea; Gallerani, Simona; Infante Lira, Leopoldo
- ItemSub-kiloparsec imaging of cool molecular gas in two strongly lensed dusty(2015) Spilker, J. S.; Aravena, M.; Marrone, D. P.; Bethermin, M.; Bothwell, M. S.; Carlstrom, J. E.; Chapman, S. C.; Collier, J. D.; De Breuck, C.; González López, Jorge
- ItemThe ALMA Frontier Fields Survey I. 1.1mm continuum detections in Abell 2744, MACSJ0416.1-2403 and MACSJ1149.5+2223(2017) González López, Jorge; Bauer, Franz Erik; Romero Cañizales, Cristina; Carvajal, R.; Kim, S.; Laporte, Nicolás; Infante Lira, Leopoldo; Muñoz Arancibia, A. M.; Padilla, Nelson; Treister, Ezequiel; Troncoso, P.
- ItemThe ALMA Frontier Fields Survey III. 1.1mm emission line identifications in Abell 2744, MACSJ 0416.1-2403, MACSJ 1149.5+2223, Abell 370, and Abell S1063.(2017) González López, Jorge; Bauer, Franz Erik; Aravena, M.; Laporte, Nicolás; Bradley, L.; Carrasco, M.; Carvajal, R.; Demarco, R.; Infante Lira, Leopoldo; Kneissl, R.; Koekemoer, A. M.; Muñoz Arancibia, S. M.; Troncoso, P.; Villard, E.; Zitrin, A.
- 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. II. Multiwavelength Photometric analysis of 1.1 mm continuum sources in Abell 2744, MACSJ0416.1-2403 and MACSJ1149.5+2223.(2017) Laporte, Nicolás; Treister, Ezequiel; Bauer, Franz Erik; Troncoso Iribarren, Paulina Alejandra; Huang, X.; González López, Jorge; Kim, Sam; Anguita A., Timo; Aravena, M.; Barrientos, Luis Felipe; Bouwens, R.; Laporte, Nicolás; Treister, Ezequiel; Bauer, Franz Erik; Troncoso Iribarren, Paulina Alejandra; Huang, X.; González López, Jorge; Kim, Sam; Anguita A., Timo; Aravena, M.; Barrientos, Luis Felipe; Bouwens, R.
- ItemThe ALMA Spectroscopic Survey in the Hubble Ultra Deep Field : CO Excitation and Atomic Carbon in Star-forming Galaxies at z=1-3(2020) Boogaard, L. A.; van der Werf, P.; Weiss, A.; Popping, G.; Decarli, R.; Walter, F.; Aravena, M.; Bouwens, R.; Riechers, D.; González López, Jorge; Smail, I.; Carilli, C.; Kaasinen, M.; Daddi, E.; Cox, P.; Diaz Santos, T.; Inami, H.; Cortes, P. C.; Wagg, J.
- ItemThe ALMA spectroscopic survey in the hubble ultra deep field : evolution of the molecular gas in CO-selected galaxies(2019) Aravena, M.; Decarli, R.; González López, Jorge; Boogaard, L.; Walter, F.; Carilli, C.; Popping, G.; Weiss, A.; Assef, R.J.; Bacon, R.