214 research outputs found

    The Times They Are a Changin\u27: How Technology Has Forced the Law to Deal with a New Era in Music Distribution

    Get PDF
    The United States has attempted to keep pace with emerging digital music distribution technology through its copyright law. However, the perfect quality, limitless geographical scope, and exponential growth of digital music delivery implicate the varied and conflicting interests of songwriters, performers, record companies, broadcasters, and the public. Reconciling the interests of these groups in digital music delivery has not been, and will not be, easy... To understand how the 1995 Act and the DMCA change music licensing, one should be aware that, in general, two distinct copyrights exist for each song that is recorded: the song copyright and the sound recording copyright. First, the song copyright secures the actual song itself while the sound recording copyright protects the particular recording of the song. Therefore, every time someone covers one of Bob Dylan\u27s songs, Dylan, through his music publisher, receives a royalty payment because the song copyright protects him. The artist and producer who cover the Dylan song are only creating a sound recording of a song, and therefore only have a copyright on their particular version of the song, and not on the underlying song itself

    GALEX and Optical Light Curves of EF Eridanus During a Low State: the Puzzling Source of UV Light

    Get PDF
    Low state optical photometry of EF Eri during an extended low accretion state combined with GALEX near and far UV time-resolved photometry reveals a source of UV flux that is much larger than the underlying 9500K white dwarf, and that is highly modulated on the orbital period. The near UV and optical light curves can be modeled with a 20,000K spot but no spot model can explain both the large amplitude FUV variations and the SED. The limitations of limb darkening, cyclotron and magnetic white dwarf models in explaining the observations are discussed.Comment: 10 pages, 4 figures to be published in ApJ Letter

    Interactive APEX (i_APEX) USER’S GUIDE USING APEX2110 and APEX0806

    Get PDF
    A tool for managing large numbers of APEX runs, handling data input and output. Program Components: ACCESS Database: Contains input tables used by i_APEX to construct APEX runs and output tables to organize APEX output. Graphical User Interface: Allows for single runs and ranges of runs and permits editing of input data as well as selection of output variables and output files

    GALEX, Optical and IR Light Curves of MQ Dra: UV Excesses at Low Accretion Rates

    Full text link
    Ultraviolet light curves constructed from NUV and FUV detectors on GALEX reveal large amplitude variations during the orbital period of the Low Accretion Rate Polar MQ Dra (SDSSJ1553+55). This unexpected variation from a UV source is similar to that seen and discussed in the Polar EF Eri during its low state of accretion, even though the accretion rate in MQ Dra is an order of magnitude lower than even the low state of EF Eri. The similarity in phasing of the UV and optical light curves in MQ Dra imply a similar location for the source of light. We explore the possibilities of hot spots and cyclotron emission with simple models fit to the UV, optical and IR light curves of MQ Dra. To match the GALEX light curves with a single temperature circular hot spot requires different sizes of spots for the NUV and FUV, while a cyclotron model that can produce the optical harmonics with a magnetic field near 60 MG requires multipoles with fields > 200 MG to match the UV fluxes.Comment: accepted for ApJ; 15 pages, 7 tables, 8 fig
    corecore