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Facultad de Ciencias Exactas: Recent submissions

  • Caffau, E.; Gallagher, A.J.; Bonifacio, P.; Spite, M.; Duffau, S.; Spite, F.; Monaco, L.; Sbordone, L. (EDP Sciences, 2018-06)
    Aims. Carbon-enhanced metal-poor (CEMP) stars represent a sizeable fraction of all known metal-poor stars in the Galaxy. Their formation and composition remains a significant topic of investigation within the stellar ...
  • Bertelli Motta, C.; Pasquali, A.; Richer, J.; Michaud, G.; Salaris, M.; Bragaglia, A.; Magrini, L.; Randich, S.; Grebel, E.K.; Adibekyan, V.; Blanco-Cuaresma, S.; Drazdauskas, A.; Fu, X.; Martell, S.; Tautvaišiene, G.; Gilmore, G.; Alfaro, E.J.; Bensby, T.; Flaccomio, E.; Koposov, S.E.; Korn, A.J.; Lanzafame, A.C.; Smiljanic, R.; Bayo, A.; Carraro, G.; Casey, A.R.; Costado, M.T.; Damiani, F.; Franciosini, E.; Heiter, U.; Hourihane, A.; Jofré, P.; Lardo, C.; Lewis, J.; Monaco, L.; Morbidelli, L.; Sacco, G.G.; Sousa, S.G.; Worley, C.C.; Zaggia, S. (Oxford University Press, 2018-07)
    Investigating the chemical homogeneity of stars born from the same molecular cloud at virtually the same time is very important for our understanding of the chemical enrichment of the interstellar medium and with it the ...
  • Andaur, R.; Tapia, J.C.; Moreno, J.; Soto, L.; Armisen, R.; Marcelain, K. (Impact Journals LLC, 2018-05)
    Enhanced radiosensitivity at low doses of ionizing radiation (IR) (0.2 to 0.6 Gy) has been reported in several cell lines. This phenomenon, known as low doses hyperradiosensitivity (LDHRS), appears as an opportunity to ...
  • Inostroza-Riquelme, M.; Vivanco, A.; Lara, P.; Guerrero, S.; Salas-Huenuleo, E.; Chamorro, A.; Leyton, L.; Bolaños, K.; Araya, E.; Quest, A.F.G.; Kogan, M.J.; Oyarzun-Ampuero, F. (MDPI AG, 2018)
    Here we report the incorporation of gold nanostructures (nanospheres or nanorods, functionalized with carboxylate-end PEG) and curcumin oil-in-water (O/W) nanoemulsions (CurNem) into alginate microgels using the dripping ...
  • Randich, S.; Tognelli, E.; Jackson, R.; Jeffries, R.D.; Degl'Innocenti, S.; Pancino, E.; Fiorentin, P.R.; Spagna, A.; Sacco, G.; Bragaglia, A.; Magrini, L.; Moroni, P.G.P.; Alfaro, E.; Franciosini, E.; Morbidelli, L.; Roccatagliata, V.; Bouy, H.; Bravi, L.; Jiménez-Esteban, F.M.; Jordi, C.; Zari, E.; Tautvaišiene, G.; Drazdauskas, A.; Mikolaitis, S.; Gilmore, G.; Feltzing, S.; Vallenari, A.; Bensby, T.; Koposov, S.; Korn, A.; Lanzafame, A.; Smiljanic, R.; Bayo, A.; Carraro, G.; Costado, M.T.; Heiter, U.; Hourihane, A.; Jofré, P.; Lewis, J.; Monaco, L.; Prisinzano, L.; Sbordone, L.; Sousa, S.G.; Worley, C.C.; Zaggia, S. (EDP Sciences, 2018-04)
    Context. Determination and calibration of the ages of stars, which heavily rely on stellar evolutionary models, are very challenging, while representing a crucial aspect in many astrophysical areas. Aims. We describe the ...
  • Clarkson, W.I.; Calamida, A.; Sahu, K.C.; Brown, T.M.; Gennaro, M.; Avila, R.J.; Valenti, J.; Debattista, V.P.; Rich, R.M.; Minniti, D.; Zoccali, M.; Aufdemberge, E.R. (Institute of Physics Publishing, 2018-05)
    We report results from an exploratory study implementing a new probe of Galactic evolution using archival Hubble Space Telescope imaging observations. Precise proper motions are combined with photometric relative metallicity ...
  • Kovtyukh, V.; Yegorova, I.; Andrievsky, S.; Korotin, S.; Saviane, I.; Lemasle, B.; Chekhonadskikh, F.; Belik, S. (Oxford University Press, 2018-06)
    The chemical composition of 28 Population II Cepheids and one RR Lyrae variable has been studied using high-resolution spectra. The chemical composition of W Vir variable stars (with periods longer than 8 d) is typical for ...
  • Calderón, J.P.; Bassino, L.P.; Cellone, S.A.; Gómez, M. (Oxford University Press, 2018-06)
    We present a statistical isophotal analysis of 138 early-type galaxies in the Antlia cluster, located at a distance of ~35 Mpc. The observational material consists of CCD images of four 36 ×36 arcmin2 fields obtained with ...
  • Lashgari, A.; Ghamami, S.; Govindarajan, M.; Salgado-Morán, G.; Romero, P.M.; Candia, L.G. (ociedad Chilena de Quimica, 2018)
    A theoretical quantum study of the organophosphorus compound with formula C10H19OPCl2 (MEPCL2) was carried out. The results of the calculations show excellent agreement between experimental and computed frequencies evaluated ...
  • Bonifacio, P.; Caffau, E.; Spite, M.; Spite, F.; Sbordone, L.; Monaco, L.; François, P.; Plez, B.; Molaro, P.; Gallagher, A.J.; Cayrel, R.; Christlieb, N.; Klessen, R.S.; Koch, A.; Ludwig, H.-G.; Steffen, M.; Zaggia, S.; Abate, C. (EDP Sciences, 2018-04)
    Context. Extremely metal-poor (EMP) stars provide us with indirect information on the first generations of massive stars. The TOPoS survey has been designed to increase the census of these stars and to provide a chemical ...
  • Espinosa-Bustos, C.; Canales, C.; Ramírez, G.; Jaque, P.; Salas, C.O. (Elsevier B.V., 2018-04)
    Three 2-arylpiperidinyl-1,4-naphthoquinone derivatives were synthesized and evaluated in vitro to determine their cytotoxicity on cancer and normal cell lines. In order to establish their possible action mechanism, the ...
  • Tomasella, L.; Cappellaro, E.; Pumo, M.L.; Jerkstrand, A.; Benetti, S.; Elias-Rosa, N.; Fraser, M.; Inserra, C.; Pastorello, A.; Turatto, M.; Anderson, J.P.; Galbany, L.; Gutiérrez, C.P.; Kankare, E.; Pignata, G.; Terreran, G.; Valenti, S.; Barbarino, C.; Bauer, F.E.; Botticella, M.T.; Chen, T.-W.; Gal-Yam, A.; Harutyunyan, A.; Howell, D.A.; Maguire, K.; Garoffolo, A.M.; Ochner, P.; Smartt, S.J.; Schulze, S.; Young, D.R.; Zampieri, L. (Oxford University Press, 2018-04)
    We present 1 yr of optical and near-infrared photometry and spectroscopy of the Type IIP SNe 2013K and 2013am. Both objects are affected by significant extinction, due to their location in dusty regions of their respective ...
  • Tissera, P.B.; Machado, R.E.G.; Carollo, D.; Minniti, D.; Beers, T.C.; Zoccali, M.; Meza, A. (Oxford University Press, 2018-01)
    We study the properties of the central spheroids located within 10 kpc of the centre of mass of MilkyWay mass-sized galaxies simulated in a cosmological context. The simulated central regions are dominated by stars older ...
  • Cavallaro, F.; Trigilio, C.; Umana, G.; Franzen, T.M.O.; Norris, R.P.; Leto, P.; Ingallinera, A.; Buemi, C.S.; Marvil, J.; Agliozzo, C.; Bufano, F.; Cerrigone, L.; Riggi, S. (Oxford University Press, 2018-01)
    In the next few years the classification of radio sources observed by the large surveys will be a challenging problem and spectral index is a powerful tool for addressing it. Here we present an algorithm to estimate the ...
  • Fahim, Z.M.E.; Bouzzine, S.M.; Hamidi, M.M.; Bouachrine, M.; Hamidi, M.; Salgado-Morán, G.; Mendoza-Huizar, L.H.; Alvarez-Romero, G.A. (Sociedade Brasileira de Quimica, 2018-02)
    Dye-sensitized solar cells (DSSCs) based on triphenylamine (TPA) as a donor group linked with the acceptor cyanoacrylic acid electron acceptor by 2,2'-bithiophene as π-bridged (D-π-A) has been investigated by Density ...
  • Elias-Rosa, N.; Benetti, S.; Cappellaro, E.; Pastorello, A.; Terreran, G.; Morales-Garoffolo, A.; Howerton, S.C.; Valenti, S.; Kankare, E.; Drake, A.J.; Djorgovski, S.G.; Tomasella, L.; Tartaglia, L.; Kangas, T.; Ochner, P.; Filippenko, A.V.; Ciabattari, F.; Geier, S.; Howell, D.A.; Isern, J.; Leonini, S.; Pignata, G.; Turatto, M. (Oxford University Press, 2018-04)
    SNhunt151 was initially classified as a supernova (SN) impostor (nonterminal outburst of a massive star). It exhibited a slow increase in luminosity, lasting about 450 d, followed by a major brightening that reaches M V ≈ ...
  • Agnello, A.; Schechter, P.L.; Morgan, N.D.; Treu, T.; Grillo, C.; Malesani, D.; Anguita, T.; Apostolovski, Y.; Rusu, C.E.; Motta, V.; Rojas, K.; Chehade, B.; Shanks, T. (Oxford University Press, 2018-04)
    We report on discovery results from a quasar lens search in the ATLAS-DR3 public footprint. Spectroscopic follow-up campaigns, conducted at the 2.6 m Nordic Optical Telescope (La Palma) and 3.6mNew Technology Telescope (La ...
  • Báez-Grez, R.; Ruiz, L.; Pino-Rios, R.; Tiznado, W. (Royal Society of Chemistry, 2018)
    The aromaticity of benzene, Al4 2- cluster, cyclopropane, borazine and planar cyclooctatetraene (COT) was analyzed according to different strategies based on nucleus-independent chemical shift (NICS) computations. The ...
  • Muirhead, P.S.; Dressing, C.D.; Mann, A.W.; Rojas-Ayala, B.; Lépine, S.; Paegert, M.; De Lee, N.; Oelkers, R. (Institute of Physics Publishing, 2018-04)
    We present a catalog of cool dwarf targets (V - > J 2.7, T eff ≳4000 K) and their stellar properties for the upcoming Transiting Exoplanet Survey Satellite (TESS), for the purpose of determining which cool dwarfs should ...
  • Canales, J.C.; Carreño, A.; Oyarzún, D.; Manríquez, J.M.; Chávez, I. (Sociedad Chilena de Quimica, 2017)
    Several research to explore the possible conversion of CO2 using rhenium(I) tricarbonyl complexes have been reported the last years. In the present work, we investigated a potential use of fac-Re(CO)3(4,4′-di-methyl-2,2′ ...