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English Cosmology Space sciences (including extraterrestrial physics, space exploration and astronautics)

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Showing 61-80 of 10,000 results

  1. Applicability of Emerging Resource Discovery Standards to the VO

    The Virtual Observatory (VO) will be one of the first applications belonging to a new generation of network services which are commonly referred to...
    Markus Dolensky in Toward an International Virtual Observatory
    Conference paper

  2. The H Band Luminosity Function of the Centre of the 30 Dor Cluster

    We present results from deep near-infrared H band observations of the central square arcminute of the 30 Dor cluster in the LMC, aimed at detecting...
    Morten Andersen, Hans Zinnecker, ... Andrea Moneti in Extragalactic Globular Cluster Systems
    Conference paper

  3. Classification of Active Objects in the Multiwavelength Parametric Space

    In this paper, we apply two algorithms for clustering analysis: support vector machines (SVMs) and learning vector quantization (LVQ) to classify...
    Yongheng Zhao, Yanxia Zhang, Chenzhou Cui in Toward an International Virtual Observatory
    Conference paper

  4. Stellar Populations in NGC 1399 Traced by Globular Clusters from a Wide-Field Study

    We present a photometric investigation of the globular cluster population of NGC 1399, the central galaxy in the Fornax cluster, in Washington C and...
    Boris Dirsch, Tom Richtler, ... W. P. Gieren in Extragalactic Globular Cluster Systems
    Conference paper

  5. A Galactic Model as a Useful Tool for Virtual Observatories

    Many observational data will be available through Virtual Observatories, but at some wavelengths and in some directions, no data yet exist....
    Annie C. Robin, Céline Reylé, ... Bernard Debray in Toward an International Virtual Observatory
    Conference paper

  6. Synthetic Integrated Colours as Age Indicators

    The uncertainties in the synthetic integrated colours of simple stellar populations are quantified in this study. Despite some skepticism, synthetic...
    Sukyoung K. Yi in Extragalactic Globular Cluster Systems
    Conference paper

  7. Study of the Star Cluster Population in NGC 7727

    We present the HST V and I photometry for the cluster population in NGC7727. The analysis of the different populations identified in the...
    G. Trancho, B. Miller, ... B. Whitmore in Extragalactic Globular Cluster Systems
    Conference paper

  8. The Disruption Time of Clusters in Selected Regions of Four Galaxies

    If the cluster formation rate is constant and the disruption time of clusters depends on their initial mass as...
    Henny J. G. L. M. Lamers, Stratos G. Boutloukos in Extragalactic Globular Cluster Systems
    Conference paper

  9. 2dF Spectroscopy of M104 Globular Clusters

    We present preliminary results of 2dF spectroscopy of globular clusters in The Sombrero (M104). We find 56 new clusters, and compile a total sample...
    Terry Bridges, Ken Freeman, ... Steve Zepf in Extragalactic Globular Cluster Systems
    Conference paper

  10. Forming Globular Cluster Systems in a Semi-Analytic Scheme

    We apply the semi-analytical galaxy formation code of Cole et al. to investigate the formation of globular cluster (GC) systems in hierarchical...
    Michael A. Beasley, Carlton M. Baugh, ... Carlos S. Frenk in Extragalactic Globular Cluster Systems
    Conference paper

  11. The Formation of Globular Clusters in the Local Universe

    The discovery that young globular clusters are forming in local galaxies has revitalized the study of globular clusters. There is now good evidence...
    Brad Whitmore in Extragalactic Globular Cluster Systems
    Conference paper

  12. 5. Building Blocks of Life

    Life is based on complex chemistry yet only a few of all the available elements participate in most life-supporting reactions on Earth: carbon,...
    Schulze-Makuch Dirk, Louis N. Irwin in Life in the Universe
    Chapter

  13. Hot Massive Planets Around Nearby Young Stars – A Search with NACO at the VLT

    The detection of massive planets (3-10 M J ) around nearby (D ≤ 50 pc) young late-type stars (10-200 Myr) is possible...
    Elena Masciadri, Reinhard Mundt, ... Ralph Neuhäuser in Science with Adaptive Optics
    Conference paper

  14. Selected Examples of Solar and Extra-Solar Planetary Science with AO

    High spatial resolution planetary science has seen a large boost from AO observations complementing space missions. Adaptive optics is particularly...
    Laird M. Close, Rainer Lenzen, ... Markus Hartung in Science with Adaptive Optics
    Conference paper

  15. Quality Control and Data Flow Operations of NAOS-CONICA

    The verification of data and the monitoring of instrument performance – known collectively as quality control (QC) – are an integral part of the...
    Wolfgang Hummel, Chris Lidman, ... Danuta Dobrzycka in Science with Adaptive Optics
    Conference paper

  16. NACO and PUEO-GriF Investigating Small Scale Structures and Velocity Fields in OMC1

    Infrared observations of the OMC1 star forming region obtained at the CFHT and at the ESO VLT, both in imaging mode with adaptive optics, are...
    Jean Louis Lemaire, David Field in Science with Adaptive Optics
    Conference paper

  17. Lyot Coronagraphy at the Palomar and Phase-Mask Coronagraphy at the VLT

    In this paper, we report on observations of faint companions and circumstellar disks at the Palomar 200-inch telescope. As a result, we present...
    Anthony Boccaletti, Jean-Charles Augereau, ... Pierre Baudoz in Science with Adaptive Optics
    Conference paper

  18. NACO-SDI: A Novel Simultaneous Differential Imager for the Direct Imaging of Giant Extra-Solar Planets

    Young (100 Myr old) extra-solar planets are 100000 times more self-luminous than old (5 Gyr) extra-solar planets, whereas their primary stars are...
    Rainer Lenzen, Laird Close, ... Beth Biller in Science with Adaptive Optics
    Conference paper

  19. AO-Assisted Observations of Ultra-Compact H II Regions

    High-spatial resolution observations in the near-infrared (NIR) with Adaptive Optics (AO) represent a powerful tool to investigate massive star...
    Elena Puga, Markus Feldt, ... Bringfried Stecklum in Science with Adaptive Optics
    Conference paper

  20. Near-Infrared High Resolution Spectroscopy of High-z QSO Absorption Systems with the Subaru Adaptive Optics System

    We are conducting a near-infrared (1.0–1.35 μm) high resolution spectroscopic survey of high-z QSOs to study the QSO absorption systems at high...
    Naoto Kobayashi, Takuji Tsujimoto, Yosuke Minowa in Science with Adaptive Optics
    Conference paper
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