Browsing by Author "201-0533892"

Now showing items 1-20 of 51

    • Active galactic nuclei at z similar to 1.5-I. Spectral energy distribution and accretion discs 
      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 ...
    • Active galactic nuclei at z ∼ 1.5 – II. Black hole mass estimation by means of broad emission lines 
      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 ...
    • Active galactic nuclei at z ∼ 1.5 – III. Accretion discs and black hole spin 
      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, ...
    • Agujeros negros en el universo 
      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 ...
    • ALMA Observations of Quasar Host Galaxies at z similar or equal to 4.8 
      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). ...
    • 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 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 ...
    • Can we improve CIV-based single-epoch black hole mass estimations? 
      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 ...
    • Caracterización de la variabilidad óptica de los agujeros negros supermasivos 
      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 ...
    • Determinación de la Distancia a 12 Supernovas de Tipo II Mediante el Método de la Fotósfera en Expansión 
      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 ...
    • Diagramas de Hubble del Carnegie Supernova Project 
      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) ...
    • Differences between CO- and calcium triplet-derived velocity dispersions in spiral galaxies: evidence for ... 
      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, ...
    • Erratum: “Reverberation Mapping of Luminous Quasars at High-z” 
      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)
    • Estudio Infrarrojo del Toro de Polvo en Galaxias con Núcleos Activos 
      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 ...
    • Exploratory X-Ray monitoring of luminous radio quiet quasars at high redshift: no evidence for evolution ... 
      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, ...
    • Fast-Growing SMBHs in Fast-Growing Galaxies, at high redshifts: the role of Major Mergers as revealed by ALMA 
      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 ...
    • Introducing the search for intermediate-mass black holes in Nearby Galaxies (SIBLING) Survey 
      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 ...
    • Long-term monitoring of the archetype Seyfert galaxy MCG-6-30-15: X-ray, optical and near-IR variability ... 
      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 ...
    • Near infrared variability of obscured and unobscured X-Ray selected AGN in the Cosmos field 
      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) ...
    • The nuclear near-infrared spectral properties of nearby galaxies 
      Mason, R.; Rodríguez Ardila, A.; Martins, L.; Riffel, R.; González Martín, Omaira; Ramos Almeida, C.; Ruschel Dutra, D.; Ho, L.; Thanjavur, K.; Flohic, H.; Alonso Herrero, A.; Lira Teillery, Paulina; McDermid, R.; Riffel, R.; Schiavon, R.; Winge, C.; Hoenig, M.; Perlman, E. (IOP Publishing, 2015)
      We present spectra of the nuclear regions of 50 nearby (D = 1-92 Mpc, median = 20 Mpc) galaxies of morphological types E to Sm. The spectra, obtained with the Gemini Near-IR Spectrograph on the Gemini North telescope, cover ...
    • Optical light curves of the type Ia supernovae SN 1990N and SN 1991T 
      Lira Teillery, Paulina; Suntzeff, Nicholas B.; Phillips, M. M.; Hamuy Wackenhut, Mario; Maza Sancho, José; Schommer, R. A.; Smith, R. C.; Wells, Lisa A.; Avilés, R.; Baldwin, J. A.; Elias, J. H.; González, L.; Layden, A. C.; Navarrete, M.; Ugarte, P.; Walker, Alistair R.; Williger, Gerard M.; Baganoff, F. K.; Crotts, Arlin P. S.; Rich, R. Michael; Tyson, N. D.; Dey, A.; Guhathakurta, P.; Hibbard, J.; Kim, Y. C.; Rehner, Daniel M.; Siciliano, E.; Roth, Joshua; Seitzer, Patrick; Williams, T. B. (UNIV CHICAGO PRESS., 1998-01)
      We present UBV RI light curves for the bright Type Ia supernovae SN 1990N in NGC 4639 and SN 1991T in NGC 4527, based on photometry gathered in the course of the Cala n/Tololo supernova program. Both objects have ...