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  • Cambiaso, M.; Lehnert, R.; Potting, R. (Institute of Physics Publishing, 2018-02)
    In the last couple of decades the Standard Model Extension has emerged as a fruitful framework to analyze the empirical and theoretical extent of the validity of cornerstones of modern particle physics, namely, of Special ...
  • Aros, R.; Iazeolla, C.; Noreña, J.; Sezgin, E.; Sundell, P.; Yin, Y. (Springer Verlag, 2018-03)
    We present exact solutions to Vasiliev’s bosonic higher spin gravity equations in four dimensions with positive and negative cosmological constant that admit an interpretation in terms of domain walls, quasi-instantons and ...
  • Hansen, C.J.; El-Souri, M.; Monaco, L.; Villanova, S.; Bonifacio, P.; Caffau, E.; Sbordone, L. (Institute of Physics Publishing, 2018-03)
    Sagittarius (Sgr) is a massive disrupted dwarf spheroidal galaxy in the Milky Way halo that has undergone several stripping events. Previous chemical studies were restricted mainly to a few, metal-rich ([Fe/H] ) stars that ...
  • D'Orazi, V.; Magurno, D.; Bono, G.; Matsunaga, N.; Braga, V.F.; Elgueta, S.S.; Fukue, K.; Hamano, S.; Inno, L.; Kobayashi, N.; Kondo, S.; Monelli, M.; Nonino, M.; Przybilla, N.; Sameshima, H.; Saviane, I.; Taniguchi, D.; Thevenin, F.; Urbaneja-Perez, M.; Watase, A.; Arai, A.; Bergemann, M.; Buonanno, R.; Dall'Ora, M.; Da Silva, R.; Fabrizio, M.; Ferraro, I.; Fiorentino, G.; Francois, P.; Gilmozzi, R.; Iannicola, G.; Ikeda, Y.; Jian, M.; Kawakita, H.; Kudritzki, R.P.; Lemasle, B.; Marengo, M.; Marinoni, S.; Martínez-Vázquez, C.E.; Minniti, D.; Neeley, J.; Otsubo, S.; Prieto, J.L.; Proxauf, B.; Romaniello, M.; Sanna, N.; Sneden, C.; Takenaka, K.; Tsujimoto, T.; Valenti, E.; Yasui, C.; Yoshikawa, T.; Zoccali, M. (Institute of Physics Publishing, 2018-03)
    We present the first spectroscopic abundance determination of iron, α-elements (Si, Ca, and Ti), and sodium for the Mira variable V1 in the metal-rich globular cluster NGC 5927. We use high-resolution (R ∼ 28,000), high ...
  • Braga, V.F.; Stetson, P.B.; Bono, G.; Dall'Ora, M.; Ferraro, I.; Fiorentino, G.; Iannicola, G.; Marconi, M.; Marengo, M.; Monson, A.J.; Neeley, J.; Persson, S.E.; Beaton, R.L.; Buonanno, R.; Calamida, A.; Castellani, M.; Carlo, E.D.; Fabrizio, M.; Freedman, W.L.; Inno, L.; Madore, B.F.; Magurno, D.; Marchetti, E.; Marinoni, S.; Marrese, P.; Matsunaga, N.; Minniti, D.; Monelli, M.; Nonino, M.; Piersimoni, A.M.; Pietrinferni, A.; Prada-Moroni, P.; Pulone, L.; Stellingwerf, R.; Tognelli, E.; Walker, A.R.; Valenti, E.; Zoccali, M. (nstitute of Physics Publishing, 2018-03)
    We present a new complete near-infrared (NIR, JHK s) census of RR Lyrae stars (RRLs) in the globular ω Cen (NGC 5139). We collected 15,472 JHK s images with 4-8 m class telescopes over 15 years (2000-2015) covering a sky ...
  • Roman-Lopes, A.; Román-Zúñiga, C.; Tapia, M.; Chojnowski, D.; Gómez Maqueo Chew, Y.; García-Hernández, D.A.; Borissova, J.; Minniti, D.; Covey, K.R.; Longa-Peña, P.; Fernandez-Trincado, J.G.; Zamora, O.; Nitschelm, C. (Institute of Physics Publishing, 2018-03)
    In this work, we make use of DR14 APOGEE spectroscopic data to study a sample of 92 known OB stars. We developed a near-infrared semi-empirical spectral classification method that was successfully used in case of four new ...
  • Kostrzewa-Rutkowska, Z.; Kozlowski, S.; Lemon, C.; Anguita, T.; Greiner, J.; Auger, M.W.; Wyrzykowski, L.; Apostolovski, Y.; Bolmer, J.; Udalski, A.; Szymański, M.K.; Soszyński, I.; Poleski, R.; Pietrukowicz, P.; Skowron, J.; Mróz, P.; Ulaczyk, K.; Pawlak, M. (Oxford University Press, 2018-05)
    We report the discovery of a new gravitationally lensed quasar (double) from the Optical Gravitational Lensing Experiment (OGLE) identified inside the ~670deg2 area encompassing the Magellanic Clouds. The source was selected ...
  • Smith, L.C.; Lucas, P.W.; Kurtev, R.; Smart, R.; Minniti, D.; Borissova, J.; Jones, H.R.A.; Zhang, Z.H.; Marocco, F.; Contreras Peña, C.; Gromadzki, M.; Kuhn, M.A.; Drew, J.E.; Pinfield, D.J.; Bedin, L.R. (Oxford University Press, 2018)
    We present VIRAC version 1, a near-infrared proper motion and parallax catalogue of the VISTA Variables in the Via Lactea (VVV) survey for 312 587 642 unique sources averaged across all overlapping pawprint and tile images ...
  • Pan, H.-A.; Lin, L.; Hsieh, B.-C.; Sánchez, S.F.; Ibarra-Medel, H.; Boquien, M.; Lacerna, I.; Argudo-Fernández, M.; Bizyaev, D.; Cano-Díaz, M.; Drory, N.; Gao, Y.; Masters, K.; Pan, K.; Tabor, M.; Tissera, P.; Xiao, T. (Institute of Physics Publishing, 2018-02)
    The galaxy integrated Hα star formation rate-stellar mass relation, or SFR(global)-M ∗(global) relation, is crucial for understanding star formation history and evolution of galaxies. However, many studies have dealt with ...
  • Kuncarayakti, H.; Maeda, K.; Ashall, C.J.; Prentice, S.J.; Mattila, S.; Kankare, E.; Fransson, C.; Lundqvist, P.; Pastorello, A.; Leloudas, G.; Anderson, J.P.; Benetti, S.; Bersten, M.C.; Cappellaro, E.; Cartier, R.; Denneau, L.; Della Valle, M.; Elias-Rosa, N.; Folatelli, G.; Fraser, M.; Galbany, L.; Gall, C.; Gal-Yam, A.; Gutiérrez, C.P.; Hamanowicz, A.; Heinze, A.; Inserra, C.; Kangas, T.; Mazzali, P.; Melandri, A.; Pignata, G.; Rest, A.; Reynolds, T.; Roy, R.; Smartt, S.J.; Smith, K.W.; Sollerman, J.; Somero, A.; Stalder, B.; Stritzinger, M.; Taddia, F.; Tomasella, L.; Tonry, J.; Weiland, H.; Young, D.R. (Institute of Physics Publishing, 2018-02)
    SN 2017dio shows both spectral characteristics of a type-Ic supernova (SN) and signs of a hydrogen-rich circumstellar medium (CSM). Prominent, narrow emission lines of H and He are superposed on the continuum. Subsequent ...
  • Marconi, M.; Minniti, D. (Institute of Physics Publishing, 2018)
    We report the first estimate of the He abundance of the population of RR Lyrae stars in the Galactic bulge. This is done by comparing the recent observational data with the latest models. We use the large samples of ab-type ...
  • Cuellar Vistoso, Nelson (Universidad Andrés Bello, 2018)
    Los problemas de optimización deben enfrentar el obstáculo del costo computacional, de modo de hacer viable su resolución en un tiempo prudente. Sin embargo, la principal dificultad radica en que, si el costo computacional ...
  • Arroyo Bravo, Jecar (Universidad Andrés Bello, 2018)
    Si poseo una lista de ciudades conociendo la distancia entre cada una de ellas, donde se desea responder ¿Cuál es la ruta óptima, para visitar cada ciudad una y sólo una vez, finalizando en el punto de partida? Este ...
  • Tartaglia, L.; Sand, D.J.; Valenti, S.; Wyatt, S.; Anderson, J.P.; Arcavi, I.; Ashall, C.; Botticella, M.T.; Cartier, R.; Chen, T.-W.; Cikota, A.; Coulter, D.; Valle, M.D.; Foley, R.J.; Gal-Yam, A.; Galbany, L.; Gall, C.; Haislip, J.B.; Harmanen, J.; Hosseinzadeh, G.; Howell, D.A.; Hsiao, E.Y.; Inserra, C.; Jha, S.W.; Kankare, E.; Kilpatrick, C.D.; Kouprianov, V.V.; Kuncarayakti, H.; Maccarone, T.J.; Maguire, K.; Mattila, S.; Mazzali, P.A.; McCully, C.; Melandri, A.; Morrell, N.; Phillips, M.M.; Pignata, G.; Piro, A.L.; Prentice, S.; Reichart, D.E.; Rojas-Bravo, C.; Smartt, S.J.; Smith, K.W.; Sollerman, J.; Stritzinger, M.D.; Sullivan, M.; Taddia, F.; Young, D.R. (Institute of Physics Publishing, 2018-01)
    We present our analysis of the Type II supernova DLT16am (SN 2016ija). The object was discovered during theongoing D < 40 Mpc (DLT40) one-day cadence supernova search at r ∼ 20.1 mag in the edge-on nearby(D = 20.0 ± 4.0 ...
  • Hayes, C.R.; Majewski, S.R.; Shetrone, M.; Fernández-Alvar, E.; Prieto, C.A.; Schuster, W.J.; Carigi, L.; Cunha, K.; Smith, V.V.; Sobeck, J.; Almeida, A.; Beers, T.C.; Carrera, R.; Fernández-Trincado, J.G.; García-Hernández, D.A.; Geisler, D.; Lane, R.R.; Lucatello, S.; Matthews, A.M.; Minniti, D.; Nitschelm, C.; Tang, B.; Tissera, P.B.; Zamora, O. (Institute of Physics Publishing, 2018)
    We find two chemically distinct populations separated relatively cleanly in the [Fe/H]-[Mg/Fe] plane, but also distinguished in other chemical planes, among metal-poor stars (primarily with metallicities [Fe H] < -0.9) ...
  • Fernández-Alvar, E.; Carigi, L.; Schuster, W.J.; Hayes, C.R.; Ávila-Vergara, N.; Majewski, S.R.; Allende Prieto, C.; Beers, T.C.; Sánchez, S.F.; Zamora, O.; García-Hernández, D.A.; Tang, B.; Fernández-Trincado, J.G.; Tissera, P.; Geisler, D.; Villanova, S. (Institute of Physics Publishing, 2018)
    The formation processes that led to the current Galactic stellar halo are still under debate. Previous studies have provided evidence for different stellar populations in terms of elemental abundances and kinematics, ...
  • Zhao, L.; Fischer, D.A.; Brewer, J.; Giguere, M.; Rojas-Ayala, B. (Institute of Physics Publishing, 2018)
    We use more than a decade of radial-velocity measurements for α Cen A, B, and Proxima Centauri from the High Accuracy Radial Velocity Planet Searcher, CTIO High Resolution Spectrograph, and the Ultraviolet and Visual Echelle ...
  • Rabanal-León, W.A.; Tiznado, W.; Osorio, E.; Ferraro, F. (Royal Society of Chemistry, 2018)
    It is a well-known fact that theoretical methodologies play a crucial role to assure an adequate structural assignment of gas-phase clusters. Particularly, in heavy-element containing clusters the inclusion of relativistic ...
  • Tudorica, A.; Hildebrandt, H.; Tewes, M.; Hoekstra, H.; Morrison, C.B.; Muzzin, A.; Wilson, G.; Yee, H.K.C.; Lidman, C.; Hicks, A.; Nantais, J.; Erben, T.; Van Der Burg, R.F.J.; Demarco, R. (EDP Sciences, 2017)
    Context. Measuring and calibrating relations between cluster observables is critical for resource-limited studies. The mass-richness relation of clusters offers an observationally inexpensive way of estimating masses. Its ...
  • Mehner, A.; Baade, D.; Groh, J.H.; Rivinius, T.; Hambsch, F.-J.; Bartlett, E.S.; Asmus, D.; Agliozzo, C.; Szeifert, T.; Stahl, O. (EDP Sciences, 2017)
    Context. Luminous blue variables (LBVs) are evolved massive stars that exhibit instabilities that are not yet understood. Stars can lose several solar masses during this evolutionary phase. The LBV phenomenon is thus ...

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