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Showing 81-100 of 10,000 results

  1. Probing the Embedded YSOs of the R CrA Region Through VLT-ISAAC Spectroscopy

    The low and medium resolution spectra, obtained with ISAAC at VLT, of five embedded Young Stellar Objects (YSOs) in the R CrA star forming core have...
    Brunella Nisini, Simone Antoniucci, ... Dario Lorenzetti in High Resolution Infrared Spectroscopy in Astronomy
    Conference paper

  2. Post-AGB Objects and Planetary Nebulae

    Planetary nebulae and post-AGB objects are luminous dust emitters in the infrared. Indeed it is by virtue of their strong dust emission that most...
    Michael J. Barlow in High Resolution Infrared Spectroscopy in Astronomy
    Conference paper

  3. Small to Large Scale Properties of Protostellar Jets Through High-Resolution IR Spectroscopy

    We present ISAAC high resolution (HR) spectra (at R ~ 10000) of the [FeII] (1.64 μm) and H2 (2.12 μm) lines of two protostellar jets (IRS 8 and IRS...
    Alessio Caratti o Garatti, Linda Podio, ... Fabrizio Vitali in High Resolution Infrared Spectroscopy in Astronomy
    Conference paper

  4. Observation of Plasma Fluctuations

    The diagnostics of fluctuating plasma quantities and their evaluation is an important issue in the context of plasma waves, instabilities, and...
    O. Grulke, T. Klinger in Plasma Physics
    Chapter

  5. Low Temperature Plasmas

    Characteristic properties and generation mechanisms of low temperature plasmas in different gas discharges are presented. A special part is focussed...
    J. Meichsner in Plasma Physics
    Chapter

  6. Why Are Only High-Redshift Obscured AGN Bright Submillimeter Sources?

    The bulk of the QSO luminosity density was produced at 1 <3, and with 0.5-2 keV luminosities close to the break of the X-ray luminosity...
    F.J. Carrera, M.J. Page, ... J.P.D. Mittaz in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  7. From the Earliest Seeds to Today’s Supermassive Black Holes

    I review scenarios for the assembly of supermassive black holes (MBHs) at the center of galaxies that trace their hierarchical build-up far up in the...
    P. Madau in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  8. Measuring the Masses and Accretion Rates in Rapidly Growing Young NLS1s

    We find that Narrow-Line Seyfert 1 Galaxies accrete at moderately super-Eddington rates. This was already suggested with the discovery of extreme...
    T. Boller in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  9. Red Optical Quasars are X-ray Blue Quasars

    We have selected a sample of 12 dust-reddened quasars with extremely red colors, reddenigs and redshifts in the range of 0.4 < z < 2.21 using a...
    T. Urrutia, M. Lacy, ... M. Gregg in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  10. From First Galaxies to QSOs –Feeding the Baby Monsters

    We present a physical model for the coevolution of massive spheroidal galaxies and active nuclei at their centers. Supernova heating is increasingly...
    L. Danese, F. Shankar, ... M. Cirasuolo in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  11. How Black Holes Get Their Kicks:Radiation Recoil in Binary Black Hole Mergers

    Gravitational waves from the coalescence of binary black holes carry linear momentum, causing center of mass recoil. This “radiation rocket” has...
    S.A. Hughes, M. Favata, D.E. Holz in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  12. AGN Outbursts and Accretion Disks

    We discuss the AGN intermittent activity. Accretion onto a supermassive black hole (SMBH) is generally accepted as the basis of AGN activity, however...
    A. Siemiginowska, A. Janiuk, B. Czerny in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  13. Radiative Feedback from Quasars and the Growth of Supermassive Black Holes

    We discuss the role of feedback via photoionization and Compton heating in the co-evolution of massive black holes at the center of spheroidal...
    S.Yu. Sazonov, J. P. Ostriker, ... R. A. Sunyaev in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  14. The Influence of Black Hole Mass and Accretion Rate on the FRI/FRII Radio Galaxy Dichotomy

    We use medium resolution optical spectra of 3CR radio galaxies to estimate their black hole masses and accretion rates. Black hole masses are found...
    M. Wold, M. Lacy, L. Armus in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  15. When Supermassive Black Holes Were Growing: Clues from Deep X–ray Surveys

    Merging the Chandra and XMM–Newton deep surveys with the previously identified ROSAT surveys a unique sample of almost 1000 AGN–1 covering five...
    G. Hasinger in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  16. The Art and Science of Black Hole Mergers

    The merger of two black holes is one of the most extraordinary events in the natural world. Made of pure gravity, the holes combine to form a single...
    B.F. Schutz in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  17. A Physically Motivated Toy Model for the BH-Spheroid Coevolution

    We present a summary of the results obtained with a time-dependent, one-zone toy model aimed at exploring the importance of radiative feedback on the...
    L. Ciotti, J.P. Ostriker, S. Yu. Sazonov in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  18. The Obscured X-ray Background and Evolution of AGN

    The X-ray Background has been resolved in the 0.5– $5{\rm\thinspace keV}$...
    A.C. Fabian, M.A. Worsley in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  19. Synthetic Stellar Clusters for Pop III

    We present preliminary results of an incoming theoretical work concerning the integrated properties of the Population III clusters of stars. On the...
    Gabriella Raimondo, Enzo Brocato, ... Vittorio Castellani in The First Stars
    Conference paper

  20. Dependence of r-process Yields on the Progenitor Masses of Type II Supernovae

    The r-process in Type II supernovae has been examined using a semianalytic, general relativistic model of neutrino winds and a nuclear reaction...
    Shinya Wanajo, Kaori Otsuki, ... Yuhri Ishimaru in The First Stars
    Conference paper
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