Now showing items 1-20 of 53

    • Capellupo, D. M.; Netzer, H.; Lira Teillery, Paulina; Trakhtenbrot, B.; Mejía Restrepo, Julián (Oxford University Press, 2015)
      The physics of active super massive black holes (BHs) is governed by their mass (MBH), spin (a(*)) , and accretion rate ((M) over dot). This work is the first in a series of papers with the aim of testing how these parameters ...
    • Mejía Restrepo, Julián; Trakhtenbrot, Benny; Lira Teillery, Paulina; Netzer, H.; Capellupo, Daniel (Oxford University Press, 2016)
      This is the second in a series of papers aiming to test how the mass (M-BH), accretion rate (M) over dot and spin (a(*)) of supermassive black holes (SMBHs) determine the observed properties of type I active galactic nuclei ...
    • Capellupo, Daniel; Netzer, Hagai; Lira Teillery, Paulina; Trakhtenbrot, Benny; Mejía Restrepo, Julián (Oxford University Press, 2016)
      This is the third paper in a series describing the spectroscopic properties of a sample of 39 AGN at z similar to 1.5, selected to cover a large range in black hole mass (M-BH) and Eddington ratio (L/L-Edd). In this paper, ...
    • Lira Teillery, Paulina; Arévalo Noordam, Patricia; Padilla, Nelson (Universitaria, 2014)
      Los objetos más oscuros y brillantes del universo son el tema de esta publicación de divulgación científica que aborda este fenómeno desde la Teoría General de la Relatividad de Albert Einstein hasta los últimos descubrimientos ...
    • Nguyen, Nathen H.; Lira Teillery, Paulina; Trakhtenbrot, Benny; Netzer, Hagai; Cicone, Claudia; Maiolino, Roberto; Shemmer, Ohad (IOP Publishing, 2020)
      We present ALMA Band 7 data of the [C II] lambda 157.74 mu m emission line and underlying far-IR (FIR) continuum for 12 luminous quasars at z similar or equal to 4.8 powered by fast-growing supermassive black holes (SMBHs). ...
    • 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 Arce, Patricio; Della Valle, Massimo; Danziger, J.; Storm, J.; Kim, Y. C.; Bailyn, C.; Rubenstein, Eric P.; Tucker, D.; Cersosimo, S.; Méndez, R. A.; 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 ...
    • Mejía Restrepo, Julián; Trakhtenbrot, B.; Lira Teillery, Paulina; Netzer, H. (Oxford University Press, 2018)
      In large optical surveys at high redshifts (z > 2), the C IV λ1549 broad emission line is the most practical alternative to estimate the mass (MBH) of active supermassive black holes. However, mass determinations obtained ...
    • Cartier Ugarte, Regis (Universidad de Chile, 2014)
      La variabilidad de los núcleos activos de las galaxias (AGNs) es un fenómeno bien establecido, el cual puede ser observado en un amplio rango del espectro electromagnético; desde longitudes de onda en radio hasta los ...
    • Jones Fernández, Matías Ignacio (Universidad de Chile, 2008)
      Hemos usado fotometría y espectroscopía temprana de 12 Supernovas de Tipo II plateau (SNs IIP) para derivar sus distancias mediante el Método de la Fotósfera en expansión (EPM). Hemos realizado este estudio usando dos ...
    • Salgado Cambiazo, Francisco Javier (Universidad de ChileCyberDocs, 2010)
      En el presente trabajo se estudió una muestra de 28 Supernovas tipo Ia (SNe Ia) observadas en los filtros ópticos BV u′ g ′ r′ i′ durante el transcurso de la primera y segunda campañas del Carnegie Supernova Project (CSP) ...
    • Riffel, Rogemar A.; Ho, Luis; Mason, Rachel; Rodríguez Ardila, Alberto; Martins, Lucimara; Riffel, Rogerio; Diaz, Ruben; Colina, Luis; Alonso-Herrero, Almudena; Flohic, Helene; González, Omaira; Lira Teillery, Paulina; McDermid, Richard; Ramos Almeida, Cristina; Schiavon, Ricardo; Thanjavur, Karun; Ruschel-Dutra, Daniel; Winge, Claudia; Perlman, Eric (Royal Astronomical Society, 2015)
      We examine the stellar velocity dispersions (σ) of a sample of 48 galaxies, 35 of which are spirals, from the Palomar nearby galaxy survey. It is known that for ultra-luminous infrared galaxies (ULIRGs) and merger remnants, ...
    • Lira Teillery, Paulina; Kaspi, Shai; Netzer, Hagai; Botti, Ismael; Morrell, Nidia; Mejía Restrepo, Julián; Sánchez-Sáez, Paula; Martínez Palomera, Jorge; López, Paula (IOP Publishing, 2020)
    • Videla Altieri, Liza Lumi (Universidad de Chile, 2010)
      En esta tesis doctoral se investigan las condiciones físicas y geométricas de la estructura (denominada toro) responsable del exceso en infrarrojo (IR) observado en la distribución espectral de energía (SED) de galaxias ...
    • Shemmer, Ohad; Brandt, W. N.; Paolillo, Maurizio; Kaspi, Shai; Vignali, Cristian; Lira Teillery, Paulina; Schneider, Donald P. (IOP Publishing Ltd, 2017)
      We report on the second installment of an X-ray monitoring project of seven luminous radio-quiet quasars (RQQs). New Chandra observations of four of these, at 4.10 <= z <= 4.35, yield a total of six X-ray epochs per source, ...
    • Trakhtenbrot, Benny; Lira Teillery, Paulina; Netzer, Hagai; Cicone, Claudia; Maiolino, Roberto; Shemmer, Ohad (Osservatorio Astronomico di Padova (INAF), Italy, 2017)
      We present a long-term, multi-wavelength project to understand the epoch of fastest growth of the most massive black holes by using a sample of 40 luminous quasars at z similar or equal to 4.8. These quasars have rather ...
    • Oyarzún, Grecco A.; Blanc Mendiberri, Guillermo; González, Valentino; Mateo, Mario; Bailey III, John I.; Finkelstein, Steven L.; Lira Teillery, Paulina; Crane, Jeffrey D.; Olszewski, Edward W. (The American Astronomical Society, 2016-04)
      In this work, we show how the stellar mass (M-*) of galaxies affects the 3 < z < 4.6 Ly alpha equivalent width (EW) distribution. To this end, we design a sample of 629 galaxies in the M-* range 7.6 < logM(*)/M-circle dot ...
    • Oyarzún, Greco; Blanc Mendiberri, Guillermo; González Corvalán, Valentino; Mateo, Mario; Bailey III, John; Finkelstein, Steven; Lira Teillery, Paulina; Crane, Jeffrey; Olszewski, Edward (The American Astronomical Society, 2016-04-10)
      In this work, we show how the stellar mass (M-*) of galaxies affects the 3 < z < 4.6 Ly alpha equivalent width (EW) distribution. To this end, we design a sample of 629 galaxies in the M-* range 7.6 < logM(*)/M-circle dot ...
    • Martínez Palomera, Jorge; Lira Teillery, Paulina; Bhalla-Ladd, India; Forster, Francisco; Plotkin, Richard (IOP, 2020)
      Intermediate-mass black holes (IMBHs) have masses between 10(2) and 10(6) M<sub and are key to our understanding of the formation of massive black holes. The known population of IMBHs remains small, with a few hundred ...
    • Lira Teillery, Paulina; Arevalo, P.; Uttley, P.; McHardy, I.; Videla, L. (Royal Astronomical Society, 2015)
      We present long-term monitoring of MCG-6-30-15 in X-rays, optical and near-IR wavelengths, collected over 5 yr of monitoring. We determine the power spectrum density of all the observed bands and show that after taking ...
    • Sánchez, P.; Lira Teillery, Paulina; Cartier Ugarte, Regis; Pérez, V.; Miranda, N.; Yovaniniz, C.; Arévalo, P.; Milvang Jensen, B.; Fynbo, J.; Dunlop, J.; Coppi, P.; Marchesi, S. (IOP Publishing Ltd., 2017)
      We present our statistical study of near-infrared (NIR) variability of X-ray-selected active galactic nuclei (AGNs) in the COSMOS field, using UltraVISTA data. This is the largest sample of AGN light curves in YJHK(s) ...