Browsing by Author "Lira Teillery, Paulina"

Now showing items 1-20 of 68

    • The 31 deg2 release of the stripe 82 x-ray survey: the point source catalog 
      La Massa, Stephanie M.; Urry, C. Megan; Cappelluti, Nico; Böhringer, Hans; Comastri, Andrea; Glikman, Eilat; Richards, Gordon; Ananna, Tonima; Brusa, Marcella; Cardamone, Carie; Chon, Gayoung; Civano, Francesca; Farrah, Duncan; Gilfanov, Marat; Green, Paul; Komossa, S.; Lira Teillery, Paulina; Makler, Martin; Marchesi, Stefano; Pecoraro, Robert; Ranalli, Piero; Salvato, Mara; Schawinski, Kevin; Stern, Daniel; Treister, Ezequiel; Viero, Marco (Cornell University, 2015)
      We release the next installment of the Stripe 82 X-ray survey point-source catalog, which currently covers 31.3 deg2 of the Sloan Digital Sky Survey (SDSS) Stripe 82 Legacy field. In total, 6181 unique X-ray sources are ...
    • A 3-D perspective to the internal properties of low and high-redshift galaxies 
      Molina Tobar, Juan Andrés (Universidad de Chile, 2019)
      En el presente trabajo estudio la morfología y cinemática de dos muestras de galaxias a bajo y alto corrimiento al rojo (redshift). Analizo la cinemática interna de estas galaxias con objetivo de encontrar posibles ...
    • A comprehensive photometric study of the Milky Way's outer halo satellites 
      Marchi Lasch, Sebastián Andrés (Universidad de Chile, 2020)
      Una de las interrogantes más importantes en la astronomía Galáctica es entender los procesos responsables de la formación y evolución de la Vía Láctea. La mayor parte de la información para estudiar las etapas tempranas ...
    • A search of massive companions around young stars with VLT/NaCo 
      Jorquera Contreras, Sebastián Andrés (Universidad de Chile, 2021)
      En los últimos años, observaciones obtenidas con el Telescopio ALMA han revelado una alta abundancia y ubicuidad de subestructuras en discos de formación planetaria, siendo los más comunes una combinación de anillos ...
    • Active galactic nuclei at z ˜ 1.5 - I. Spectral energy distribution and accretion discs 
      Capellupo, D. M.; Netzer, H.; Lira Teillery, Paulina; Trakhtenbrot, B.; Mejía-Restrepo, Julian (Royal Astronomical Society, 2015)
      The physics of active super massive black holes (BHs) is governed by their mass (MBH), spin (a∗), and accretion rate (M˙ ). This work is the first in a series of papers with the aim of testing how these parameters determine ...
    • Adaptive optics discovery of supernova 2004ip in the nuclear regions of the luminous infrared galaxy IRAS ... 
      Mattila, S.; Väisänen, P.; Farrah, D.; Efstathiou, A.; Meikle, W. P. S.; Dahlen, T.; Fransson, C.; Lira Teillery, Paulina; Lundqvist, P.; Östlin, G.; Ryder, S.; Sollerman, J. (2007)
      We report a supernova discovery in K-s-band images from the NAOS CONICA adaptive optics (AO) system on the ESO Very Large Telescope. The images were obtained as part of a near- infrared search for highly obscured supernovae ...
    • Adaptive optics imaging and optical spectroscopy of a multiple merger in a luminous infrared galaxy 
      Väisänen, P.; Mattila, S.; Kniazev, A.; Adamo, A.; Efstathiou, A.; Farrah, D.; Ohansson, P. H.; Östlin, G.; Buckley, D. A. H.; Burgh, E. B.; Crause, L.; Hashimoto, Y.; Lira Teillery, Paulina; Loaring, N.; Nordsieck, K.; Romero Colmenero, Encarni; Ryder, S.; Still, M.; Zijlstra, A. (BLACKWELL PUBLISHING, 2008-03-01)
      We present near-infrared (NIR) adaptive optics imaging obtained with VLT/NACO and optical spectroscopy from the Southern African Large Telescope (SALT) of a luminous infrared galaxy (LIRG) IRAS 19115-2124. These data are ...
    • ALMA Observations Show Major Mergers among the Host Galaxies of Fast-growing, High-redshift, Supermassive ... 
      Trakhtenbrot, Benny; Lira Teillery, Paulina; Netzer, Hagai; Cicone, Claudia; Maiolino, Roberto; Shemmer, Ohad (IOP Publishing, 2017)
      We present new ALMA band-7 data for a sample of six luminous quasars at z similar or equal to 4.8, powered by fast-growing supermassive black holes (SMBHs) with rather uniform properties: the typical accretion rates and ...
    • Automatic Classification of variable objects in the hits survey and its applicability for intermediate mass ... 
      Martínez Palomera, Jorge Ignacio (Universidad de Chile, 2018)
      El Survey de Transientes a Alta Cadencia (HiTS), fue creado con el propósito de descubrir y estudiar objetos transitorios con escalas de tiempo características entre horas y días, tales como, estrellas pulsantes, eclipsantes, ...
    • Black hole mass and growth rate at high redshift 
      Netzer, Hagai; Lira Teillery, Paulina; Trakhtenbrot, Benny; Shemmer, Ohad; Cury, Iara (2007-12-20)
      We present new H- and K-band spectroscopy of 15 high-luminosity active galactic nuclei (AGNs) at redshifts 2.3Y3.4 obtained with Gemini South.We combined the data with spectra of an additional 29 high-luminosity sources to ...
    • BLACK HOLE MASS AND GROWTH RATE AT z 4.8: A SHORT EPISODE OF FAST GROWTH FOLLOWED BY SHORT DUTY CYCLE ACTIVITY. 
      Trakhtenbrot, Benny; Netzer, Hagai; Lira Teillery, Paulina; Shemmer, Ohad (IOP Publishing., 2011-03-20)
      We present newH-band spectroscopy for a flux-limited sample of 40 z 4.8 active galactic nuclei, selected from the Sloan Digital Sky Survey. The sample probably contains the most massive active black holes (BHs) at this ...
    • BLACK HOLE MASSES AND HOST GALAXY EVOLUTION OF RADIO-LOUD ACTIVE GALACTIC NUCLEI 
      Woo, Jong-Hak; Urry, C. Megan; van der Marel, Roeland P.; Lira Teillery, Paulina; Maza Sancho, José (2005-10-01)
      We report stellar velocity dispersion measurements for a sample of 28 active galactic nucleus (AGN) host galaxies, including our previous work. Using the mass-dispersion (M.- ) and the fundamental plane relations, ...
    • BVRI light curves for 29 type Ia supernovae 
      Hamuy Wackenhut, Mario; Phillips, M. M.; Suntzeff, Nicholas B.; Schommer, R. A.; Maza Sancho, José; Antenaza, Roberto; Wischnjewsky, Marina; Valladares, Geraldo; Muena, César; González, L. E.; Avilés, R.; Wells, Lisa; Smith, R. C.; Navarrete, Mauricio; Covarrubias, Ricardo; Williger, G.; Walker, Alistair R.; Layden, A. C.; Elias, J. H.; Baldwin, J. A.; Hernández, Manuel; Tirado, Hernán; Ugarte, Patricio; Elston, R.; Saavedra, Nelson; Barrientos, Felipe; Costa Hechenleitner, Edgardo; Lira Teillery, Paulina; Ruiz González, María Teresa; Anguita, Claudio; Gómez, Ximena; Ortiz, P.; Della Valle, M.; Danziger, J.; Storm, J.; Kim, Y. C.; Bailyn, C.; Rubenstein, Eric P.; Tucker, D.; Cersosimo, S.; Méndez Bussard, René Alejandro; Siciliano, L.; Sherry, W.; Chaboyer, Brian; Koopmann, R. A.; Geisler, D.; Sarajedini, A.; Dey, Arjun; Tyson, N.; Rich, R. Michael; Gal, R.; Lamontagne, Robert; Caldwell, N.; Guhathakurta, Puragra; Phillips, A. C.; Szkody, P.; Prosser, C.; Ho, Luis C.; McMahan, R.; Baggley, G.; Cheng, K. P.; Havlen, R.; Wakamatsu, K.; Janes, Kenneth A.; Malkan, Mathew; Baganoff, F.; Seitzer, P.; Shara, M.; Sturch, C.; Hesser, J.; Hartigan, P.; Hughes, J.; Welch, D. L.; Williams, T. B.; Ferguson, H.; Francis, P. J.; French, L.; Bolte, M.; Roth, J.; Odewahn, S.; Howell, S.; Krzeminski, W. (American Astronomical Society, 1996-12)
      BV(RI)_KC_ light curves are presented for 27 type Ia supernovae discovered during the course of the Calan/Tololo Survey and for two other SNe Ia observed during the same period. Estimates of the maximum light magnitudes ...
    • Chandra HRC and HST observations of NGC 6240: resolving the active galactic nucleus and starburst 
      Lira Teillery, Paulina; Ward, M. J.; Zezas, A.; Murray, S. S. (BLACKWELL PUBLISHING LTD., 2002-07)
      We present high spatial resolution X-ray Chandra HRC and HST WFPC2 Ha observations of the prototypical infrared-luminous galaxy NGC 6240. The central region of this system shows a remarkably complex morphology, with ...
    • Chandra observations of the luminous infrared galaxy NGC 3256 
      Lira Teillery, Paulina; Ward, M.; Zezas, A.; Alonso Herrero, A.; Ueno, S. (BLACKWELL PUBLISHING LTD., 2002-02-21)
      We present a detailed analysis of high-resolution Chandra observations of the merger system NGC 3256, the most infrared-luminous galaxy in the nearby universe. The X-ray data show that several discrete sources embedded ...
    • Clustering of intermediate-luminosity x-ray-selected active galactic nuclei at z similar to 3 
      Francke Henriquez, Harold; Gawiser, Eric; Lira Teillery, Paulina; Treister, Ezequiel; Virani, Shanil N.; Cardamone, Carie; Urry, C. Megan; van Dokkum, Pieter; Quadri, Ryan (UNIV CHICAGO PRESS, 2008-01-20)
      We present the first clustering results of X-ray-selected active galactic nuclei (AGNs) at z similar to 3. Using Chandra X-ray imaging and UVR optical colors from MUSYC photometry in the Extended Chandra Deep Field-South ...
    • Clustering of K-selected galaxies at 2 < z < 3.5: Evidence for a color-density relation 
      Quadri, Ryan; van Dokkum, Pieter; Gawiser, Eric; Franx, Marijn; Marchesini, Danilo; Lira Teillery, Paulina; Rudnick, Gregory; Herrera, David; Maza Sancho, José; Kriek, Mariska; Labbé, Ivo; Francke Henriquez, Harold (UNIV CHICAGO PRESS, 2007-01-01)
      We study the clustering properties of K-selected galaxies at 2 < z < 3:5 using deep multiwavelength imaging in three fields from the MUSYC survey. These are the first measurements to probe the spatial correlation function ...
    • Constraining torus models for AGNs using X-ray observations 
      Ibar, E.; Lira Teillery, Paulina (2007)
      Context. In Unification Models, Active Galactic Nuclei (AGN) are believed to be surrounded by an axisymmetric structure of dust and gas, which greatly influences their observed properties according to the direction from ...
    • Correlated X-ray/optical variability in the quasar MR 2251-178 
      Arévalo, P.; Uttley, P.; Kaspi, S.; Breedt, E.; Lira Teillery, Paulina; McHardy, I. M. (BLACKWELL, 2008-09-21)
      Emission from active galactic nuclei is known to vary strongly over time over a wide energy band, but the origin of the variability and especially of the interband correlations is still not well established. Here we present ...
    • Correlated X-ray/ultraviolet/optical variability in the very low mass AGN NGC 4395 
      Cameron, D. T.; McHardy, I.; Dwelly, T.; Breedt, E.; Uttley, P.; Lira Teillery, Paulina; Arévalo, P. (WILEY-BLACKWELL, 2012-05)
      We report the results of a 1-yr Swift X-ray/ultraviolet (UV)/optical programme monitoring the dwarf Seyfert nucleus in NGC4395 in 2008–2009. The UV/optical flux from the nucleus was found to vary dramatically over the ...