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Showing 61-80 of 10,000 results

  1. First Spectroscopic Observations of Low-Mass Companions to X-Ray Selected Main Sequence Late B-type Dwarfs with NIRSPEC at Keck II

    Recently, using near infrared photometric observations with ADONIS+ SHARP II, we have detected 21 new IR objects around 49 X-ray selected late B-type...
    Swetlana Hubrig, Markus Schöller, ... Gaspard Duchêne in High Resolution Infrared Spectroscopy in Astronomy
    Conference paper

  2. Baryon Spectroscopy in Lattice QCD

    We review recent developments in the study of excited baryon spectroscopy in lattice QCD. After introducing the basic methods used to extract masses...
    D.B. Leinweber, W. Melnitchouk, ... J.M. Zanotti in Lattice Hadron Physics
    Chapter

  3. Hadron Properties with FLIC Fermions

    The Fat-Link Irrelevant Clover (FLIC) fermion action provides a new form of nonperturbative O(a)-improvement in lattice fermion actions offering near...
    J.M. Zanotti, D.B. Leinweber, ... J.B. Zhang in Lattice Hadron Physics
    Chapter

  4. Magnetic Confinement

    This chapter describes the basic principles of magnetic confinement. The main representatives of magnetic confinement are the mirror machine, the...
    F. Wagner, H. Wobig in Plasma Physics
    Chapter

  5. The Spatial Clustering of X-ray Selected AGN in the Chandra Msec Fields

    I present here the first estimates of the spatial correlation function of X-ray selected AGN in the 2Msec Chandra Deep Field North (CDFN) and 1Msec...
    R. Gilli in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  6. Sgr A West: A Parsec Scale Reservoirfor Accretion onto Sgr A*?

    Sgr A*, the super-massive black hole at the centre of the Milky Way, is surrounded by the H ii region Sgr A West, which appears in projection like a...
    T. Paumard, J.-P. Maillard, M. Morris in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  7. Intermediate-Mass Black Holes in Active Galactic Nuclei

    Little is currently known about the demographics of black holes in the intermediate-mass range 103–106 M⊙, but a small fraction of dwarf galaxies and...
    A.J. Barth, J.E. Greene, L.C. Ho in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  8. Narrow-Line Seyfert 1 Galaxies: Growing Black Holes at Supercritical Accretion?

    The X-ray spectra of NLS1, characterized by a significant soft excess and a steep hard tail analogous to the soft-state black-hole binaries, are...
    Y. Tanaka, T. Boller, L. Gallo in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  9. Formation of the First Supermassive Black Holes

    Understanding the emergence of the first supermassive black holes, and hence the first quasars, is a crucial ingredient for models of reionization...
    V. Bromm in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  10. The Role of Gas in the Merging of Massive Black Holes in Galactic Nuclei

    Using high-resolution SPH numerical simulations, we investigate the effects of gas on the inspiral and merger of a massive black hole binary. This...
    A. Escala, P.S. Coppi, ... D. Mardones in Growing Black Holes: Accretion in a Cosmological Context
    Conference paper

  11. The CDF-S Viewed with SIMBA

    Observations of the Chandra Deep Field South (CDF-S) with the bolometer array SIMBA on the SEST 15m telescope is presented. SIMBA operates at 1250 μm...
    Tommy Wiklind, Stefan Bergström, ... Piero Rosati in Multiwavelength Map** of Galaxy Formation and Evolution
    Conference paper

  12. The TESIS Project: Are Type 2 QSO Hidden in X-Ray Emitting EROs?

    X-ray selected EROs are, on average, the hardest X-ray sources in medium and deep X-ray fields. This coupled with their extremely red colors...
    P. Severgnini, R. Della Ceca, ... C. Maraston in Multiwavelength Map** of Galaxy Formation and Evolution
    Conference paper

  13. Local Redshift Surveys and Galaxy Evolution

    We present observations of galaxy environmental dependencies using data from the 2dF Galaxy Redshift Survey. From a combined analysis of the...
    Roberto De Propris, Matthew Colless, Darren Croton in Multiwavelength Map** of Galaxy Formation and Evolution
    Conference paper

  14. Mid-Ultraviolet Spectral Diagnostics of Galaxy Evolution

    We describe how optical spectra of z=1–2 galaxies can help test the hypothesis of hierarchical galaxy formation.
    Sara R. Heap, Thierry Lanz in Multiwavelength Map** of Galaxy Formation and Evolution
    Conference paper

  15. The First 1–2 Gyrs of Galaxy Formation: Dropout Galaxies from z~ 3–6

    The unique high–resolution wide–field imaging capabilities of HST with ACS have allowed the characterization of galaxies at redshift 6, less than 1...
    Garth Illingworth, Rychard Bouwens in Multiwavelength Map** of Galaxy Formation and Evolution
    Conference paper

  16. The Epochs of Early-Type Galaxy Formation in Clusters and in the Field

    Using our models of absorption line indices that account for variable abundance ratios, we derive ages, total metallicities, and element abundance...
    Daniel Thomas, Claudia Maraston, Ralf Bender in Multiwavelength Map** of Galaxy Formation and Evolution
    Conference paper

  17. COSMOS 2 $\square^\circ$ Survey

    The Cosmic Evolution Survey (COSMOS) will provide complete multi-wavelength imaging and spectroscopy of a 2...
    Nick Scoville in Multiwavelength Map** of Galaxy Formation and Evolution
    Conference paper

  18. On the Dearth of Low-Luminosity, High-Redshift Quasars

    The GOODS Team [2] presented a sample of 17 high-redshift QSO candidates from the GOODS fields with 3.5 < z < 5.2. The number counts of their z > 4...
    F. Fontanot, P. Monaco, ... M. Nonino in Multiwavelength Map** of Galaxy Formation and Evolution
    Conference paper

  19. Beyond the Lick Indices: The High-Resolution Spectral Synthesis of Stellar Populations

    Up-to-date theoretical SED of stellar populations at 2 Å FWHM resolution is obtained by coupling a new library of synthetic spectra from the ATLAS...
    Alberto Buzzoni, Emanuele Bertone, ... Miguel Chávez in Multiwavelength Map** of Galaxy Formation and Evolution
    Conference paper

  20. Quasar Host Galaxies of GEMS, First Results: 0.5 < z < 2.75

    Understanding the host galaxies (HGs) of quasars is the key to linking the evolution of galaxies and their central black holes. Within the gems...
    K. Jahnke, S.F. Sánchez, ... C. Wolf in Multiwavelength Map** of Galaxy Formation and Evolution
    Conference paper
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