Recent Submissions

  • Cosmic evolution of molecular gas mass density from an empirical relationship between L1.4 GHz and L' CO 

    Orellana González, Gustavo; Ibar, E.; Leiton, R.; Thomson, A. P.; Cheng, C.; Ivison, R. J; Herrera Camus, R.; Messias, H.; Calderon Castillo, P.; Hughes, T. M.; Leeuw, L. (2020-06)
    Historically, GHz radio emission has been used extensively to characterize the star-formation activity in galaxies. In this work, we look for empirical relationships amongst the radio luminosity, the infrared luminosity, ...
  • Optical phase curve of the ultra-hot Jupiter WASP-121b 

    Bourrier, V.; Kitzmann, D.; Kuntzer, T.; Nascimbeni, V.; Lendl, M.; Lavie, B.; Hoeijmakers, H. J.; Pino, L.; Ehrenreich, D.; Heng, K.; Allart, R.; Cegla, H. M.; Dumusque, X.; Melo, C.; Astudillo Defru, Nicola; Caldwell, Douglas A.; Cretignier, M.; Giles, H.; Henze, C. E.; Jenkins, J.; Lovis, C.; Murgas, F.; Pepe, F.; Ricker, G. R.; Rose, M. E.; Seager, S.; Segransan, D.; Suárez-Mascareño, A.; Udry, S.; Vanderspek, R.; Wyttenbach, A. (2020-05)
    We present the analysis of TESS optical photometry of WASP-121b, which reveals the phase curve of this transiting ultra-hot Jupiter. Its hotspot is located at the sub-stellar point, showing inefficient heat transport from ...
  • Discovery of a hot, transiting, Earth-sized planet and a second temperate, non-transiting planet around the M4 dwarf GJ 3473 (TOI-488) 

    Kemmer, J.; Stock, S.; Kossakowski, D.; Kaminski, A.; Molaverdikhani, K.; Schlecker, M.; Caballero, J. A.; Amado, P. J.; Astudillo Defru, Nicola; Bonfils, X.; Ciardi, David; Collins, Karen A.; Espinoza, N.; Fukui, A.; Hirano, T.; Jenkins, J. M.; Latham, D. W.; Matthews, E. C.; Narita, N.; Pallé, E.; Parviainen, H.; Quirrenbach, A.; Reiners, A.; Ribas, I.; Ricker, G.; Schlieder, J. E.; Seager, S.; Vanderspek, R.; Winn, J. N.; Almenara, José Manuel; Bejar, V. J. S.; Bluhm, P.; Bouchy, F.; Boyd, P.; Christiansen, J. L.; Cifuentes, C.; Cloutier, Ryan; Collins, Kevin I.; Cortés Contreras, M.; Crossfield, Ian J. M.; Crouzet, N.; de Leon, J. P.; Della Rose, D. D.; Delfosse, X.; Dreizler, S.; Esparza Borges, E.; Essack, Z.; Forveille, Th.; Figueira, P.; Galadí Enríquez, D.; Gan, T.; Glidden, A.; Gonzales, E. J.; Guerra, P.; Harakawa, H.; Hatzes, A. P.; Henning, Th.; Herrero, E.; Hodapp, K.; Hori, Y.; Howell, S. B.; Ikoma, M.; Isogai, K.; Jeffers, S. V.; Kürster, M.; Kawauchi, K.; Kimura, T.; Klagyivik, P.; Kotani, T.; Kurokawa, T.; Kusakabe, N.; Kuzuhara, M.; Lafarga, M.; Livingston, J. H.; Luque, R.; Matson, R.; Morales, J. C.; Mori, M.; Muirhead, P. S.; Murgas, F.; Nishikawa, J.; Nishiumi, T.; Omiya, M.; Reffert, S.; Rodríguez López, C.; Santos, N. C.; Schöfer, P.; Schwarz, R. P.; Shiao, B.; Tamura, M.; Terada, Y.; Twicken, J. D.; Ueda, A.; Vievard, S.; Watanabe, N.; Zechmeister, M. (2020-10-23)
    We present the confirmation and characterisation of GJ 3473 b (G 50–16, TOI-488.01), a hot Earth-sized planet orbiting an M4 dwarf star, whose transiting signal (P = 1.198 003 5 ± 0.000 001 8 d) was first detected by the ...
  • Analysis of the interaction of surface water and groundwater in an Andean volcanic catchment, Chile 

    Parra, Víctor; Muñoz, Enrique; Arumí, José Luis; Paredes, Jerónimo (2020-10)
    In the south-central zone of Chile, the Renegado River presents irregular behavior during the dry season, with dry and high-flow sections along its course at the same time. The objective of this study was to identify ...
  • Asymptotic symmetries of Maxwell Chern–Simons gravity with torsion 

    Adami, H.; Concha Aguilera, Patrick; Rodriguez, E.; Safari, H. R. (2020-10-19)
    We present a three-dimensional Chern–Simons gravity based on a deformation of the Maxwell algebra. This symmetry allows introduction of a non-vanishing torsion to the Maxwell Chern–Simons theory, whose action recovers the ...
  • Analysis of hospitality, leisure, and tourism studies in Chile 

    Acevedo Duque, Ángel; Vega Muñoz, Alejandro; Salazar Sepúlveda, Guido (2020-09)
    This article provides a scientific production overview of hospitality, leisure, and tourism studies in Chile, including key factors of interest regarding this social science subdiscipline. The fundamental knowledge ...
  • Planetary system LHS 1140 revisited with ESPRESSO and TESS 

    Lillo-Box, J.; Figueira, P.; Leleu, A.; Acuña, L.; Faria, J.P.; Hara, N.; Santos, N. C.; Correia, A. C. M; Robutel, P.; Deleuil, M.; Barrado, D.; Sousa, S.; Bonfils, X.; Mousis, O.; Almenara, José Manuel; Astudillo Defru, Nicola; Marcq, E.; Lovis, C.; Pepe, F. (2020-10-15)
    Context. LHS 1140 is an M dwarf known to host two transiting planets at orbital periods of 3.77 and 24.7 days. They were detected with HARPS and Spitzer. The external planet (LHS 1140 b) is a rocky super-Earth that is ...
  • Periodic orbits in a three-dimensional galactic potential model via averaging theory 

    Álvarez Ramírez, Martha; García Saldaña, Johanna D.; Medina, M. (2020-10-06)
    The Milky Way is a gigantic spiral-shaped disk with a bright, central bulge containing over 100 billion stars that revolves around the central core, the galaxy moves continuously, likewise, our solar system is also in ...
  • A simple time-varying sensitivity analysis (TVSA) for assessment of temporal variability of hydrological processes 

    Medina González, Yelena; Muñoz Ortiz, Enrique (2020-09)
    Time-varying sensitivity analysis (TVSA) allows sensitivity in a moving window to be estimated and the time periods in which the specific components of a model can affect its performance to be identified. However, one of ...
  • Analysis of the relative importance of model parameters in watersheds with different hydrological regimes 

    Medina González, Yelena; Muñoz Ortiz, Enrique (2020-09)
    Depending on the purpose of the study, aggregated hydrological models are preferred over distributed models because they provide acceptable results in terms of precision and are easy to run, especially in data scarcity ...
  • A Banach spaces-based analysis of a new mixed-primal finite element method for a coupled flow-transport problem 

    Benavides, Gonzalo A.; Caucao, Sergio; Gatica, Gabriel N.; Hopper, Alejandro A. (2020-11)
    In this paper we introduce and analyze a new finite element method for a strongly coupled flow and transport problem in , , whose governing equations are given by a scalar nonlinear convection–diffusion equation coupled ...
  • Numerical analysis of seismic water level oscillations in canals 

    Ohira, Koichiro; Takabatake, Tomoyuki; Esteban, Miguel; Aránguiz Muñoz, Rafael Enrique; Mall, Martin; Shibayama, Tomoya (2020-11)
    Water level oscillations induced by the ground motion of an earthquake have occasionally been observed in a closed or partially enclosed water system. The generated water disturbances can induce localized flooding, boat ...
  • Heterogeneous sonocatalytic activation of peroxomonosulphate in the presence of CoFe2O4/TiO2 nanocatalysts for the degradation of Acid Blue 113 in an aqueous environment 

    S., Krishnaa; Sathishkumar, P.; Pugazhenthiran, N.; Kiros, Guesh; Mangalaraja, R.V.; Kumaran, S.; Gracia Pinilla, Miguel Angel; Anandan, Sambandam (2020-10)
    CoFe2O4 nanoparticles with band gap of 1.5 eV have excellent magnetic properties but poor catalytic degradation of Acid Blue (AB113) under ambient conditions due to the rapid recombination of electronic charges. To prevent ...
  • Linear type global centers of linear systems with cubic homogeneous nonlinearities 

    García-Saldaña, Johanna D.; Llibre, Jaume; Valls, Claudia (2019-07-19)
    The notion of center goes back to Poincar´e and Dulac, see [10, 6]. They defined a center for a vector field on the real plane as a singular point having a neighborhood filled of periodic orbits with the exception of the ...
  • Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS): IV. A spectral inventory of atoms and molecules in the high-resolution transmission spectrum of WASP-121 b 

    Hoeijmakers, H. J.; Seidel, J. V.; Pino, L.; Kitzmann, D.; Sindel, J. P.; Ehrenreich, D.; Oza, A. V.; Bourrier, V.; Allart, R.; Gebek, A.; Lovis, C.; Yurchenko, S. N.; Astudillo Defru, Nicola; Bayliss, D.; Cegla, H.; Lavie, B.; Lendl, M.; Melo, C.; Murgas, F.; Nascimbeni, V.; Pepe, F.; Ségransan, D.; Udry, S.; Wyttenbach, A.; Heng, K. (2020-09-18)
    Context. WASP-121 b is a hot Jupiter that was recently found to possess rich emission (day side) and transmission (limb) spectra, suggestive of the presence of a multitude of chemical species in the atmosphere. Aims. ...
  • Hot Exoplanet Atmospheres Resolved with Transit Spectroscopy (HEARTS)? V. Detection of sodium on the bloated super-Neptune WASP-166b 

    Seidel, J. V.; Ehrenreich, D.; Bourrier, V.; Allart, R.; Attia, O.; Hoeijmakers, H. J.; Lendl, M.; Linder, E.; Wyttenbach, A.; Astudillo Defru, Nicola; Bayliss, D.; Cegla, H. M.; Heng, Kevin; Lavie, B.; Lovis, C.; Melo, C.; Pepe, F.; dos Santos, L. A.; Ségransan, D.; Udry, S. (2020-07-06)
    Planet formation processes or evolution mechanisms are surmised to be at the origin of the hot Neptune desert. Studying exoplanets currently living within or at the edge of this desert could allow disentangling the respective ...
  • Green synthesis of hierarchical copper oxide microleaf bundles using Hibiscus cannabinus leaf extract for antibacterial application 

    Kalaiyan, G.; Suresh, S.; Thambidurai, S.; Prabu, K. M.; Karthick Kumar, S.; Pugazhenthiran, N.; Kandasamy, M. (2020-10-05)
    Green synthesis of hierarchical copper oxide (CuO) microleaf bundles was performed using Hibiscus cannabinus (H. cannabinus) leaf extract and characterized through X-ray diffractometry (XRD), scanning electron microscopy ...
  • The influence of pool-riffle morphological features on river mixing 

    Fuentes Aguilera, Patricio; Caamaño Avendaño, Diego; Alcayaga, Hernán; Tranmer, Andrew (2020-04)
    Accurate prediction of pollutant concentrations in a river course is of great importance in environmental management. Mathematical dispersion models are often used to predict the spatial distribution of substances to help ...
  • A Pair of TESS Planets Spanning the Radius Valley around the Nearby Mid-M Dwarf LTT 3780 

    Cloutier, Ryan; Eastman, Jason D.; Rodríguez, Joseph E.; Astudillo Defru, Nicola; Bonfils, Xavier; Mortier, Annelies; Watson, Christopher A.; Stalport, Manu; Pinamonti, Matteo; Lienhard, Florian; Harutyunyan, Avet; Damasso, Mario; Latham, David W.; Collins, Karen A.; Massey, Robert; Irwin, Jonathan; Winters, Jennifer G.; Charbonneau, David; Ziegler, Carl; Matthews, Elisabeth; Crossfield, Ian J. M.; Kreidberg, Laura; Quinn, Samuel N.; Ricker, George; Vanderspek, Roland; Seager, Sara; Winn, Joshua; Jenkins, Jon M.; Vezie, Michael; Udry, Stéphane; Twicken, Joseph D.; Tenenbaum, Peter; Sozzetti, Alessandro; Ségransan, Damien; Schlieder, Joshua E.; Sasselov, Dimitar; Santos, Nuno C.; Rice, Ken; Rackham, Benjamin V.; Poretti, Ennio; Piotto, Giampaolo; Phillips, David; Pepe, Francesco; Molinari, Emilio; Mignon, Lucile; Micela, Giuseppina; Melo, Claudio; De Medeiros, José R.; Mayor, Michel; Matson, Rachel A.; Martínez Fiorenzano, Aldo F.; Mann, Andrew W.; Magazzú, Antonio; Lovis, Christophe; López-Morales, Mercedes; López, Eric; Lissauer, Jack J.; Lépine, Sébastien; Law, Nicholas; Kielkopf, John F.; Johnson, John A.; Jensen, Eric L. N.; Howell, Steve B.; Gonzáles, Erica; Ghedina, Adriano; Forveille, Thierry; Figueira, Pedro; Dumusque, Xavier; Dressing, Courtney D.; Doyon, René; Díaz, Rodrigo F.; Di Fabrizio, Luca; Delfosse, Xavier; Cosentino, Rosario; Conti, Dennis M.; Collins, Kevin I.; Collier Cameron, Andrew; Ciardi, David; Caldwell, Douglas A.; Burke, Christopher; Buchhave, Lars; Briceño, César; Boyd, Patricia; Bouchy, François; Beichman, Charles; Artigau, Étienne; Almenara, José Manuel (2020-07)
    We present the confirmation of two new planets transiting the nearby mid-M dwarf LTT 3780 (TIC 36724087, TOI-732, V = 13.07, Ks = 8.204, Rs = 0.374 R⊙, Ms = 0.401 M⊙, d = 22 pc). The two planet candidates are identified ...
  • GJ 1252 b: A 1.2 R⊕ Planet Transiting an M3 Dwarf at 20.4 pc 

    Shporer, Avi; Collins, Karen A.; Astudillo Defru, Nicola; Irwin, Jonathan; Bonfils, Xavier; Collins, Kevin I.; Matthews, Elisabeth; Winters, Jennifer G.; Anderson, David R.; Armstrong, James D.; Charbonneau, David; Cloutier, Ryan; Daylan, Tansu; Gan, Tianjun; Günther, Maximilian N.; Hellier, Coel; Horne, Keith; Huang, Chelsea X.; Jensen, Eric L. N.; Kielkopf, John; Palle, Enric; Sefako, Ramotholo; Stassun, Keivan G.; Tan, Thiam-Guan; Vanderburg, Andrew; Ricker, George R.; Latham, David W.; Vanderspek, Roland; Seager, Sara; Winn, Joshua N.; Jenkins, Jon M.; Colon, Knicole; Dressing, Courtney D.; Léepine, Sébastien; Muirhead, Philip S.; Rose, Mark E.; Twicken, Joseph D.; Villaseñor, Jesús Noel (2020-02-10)
    We report the discovery of GJ 1252 b, a planet with a radius of 1.193 ± 0.074 ${R}_{\oplus }$ and an orbital period of 0.52 days around an M3-type star (0.381 ± 0.019 ${M}_{\odot }$, 0.391 ± 0.020 ${R}_{\odot }$) located ...

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