Conferences related to Stellar motion

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ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

The ICASSP meeting is the world's largest and most comprehensive technical conference focused on signal processing and its applications. The conference will feature world-class speakers, tutorials, exhibits, and over 50 lecture and poster sessions.


2018 IEEE Aerospace Conference

The international IEEE Aerospace Conference is organized to promote interdisciplinaryunderstanding of aerospace systems, their underlying science, and technology


2018 International Carnahan Conference on Security Technology (ICCST)

The ICCST is an annual conference that provides a forum for exchanging information related to broad aspects of security technology and research between Government, academia and industry. This conference solicits papers in 23 diverse subject areas providing a board-spectrum meeting of subject matter experts.


2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)

The CLEO®/Europe-EQEC conference series has a strong tradition as a comprehensive and prestigious gathering of optics and photonics researchers and engineers in Europe. CLEO®/Europe reflects a strong international presence in the complementary research traditions of laser science, photonics and quantum electronics. More specifically, CLEO®/Europe emphasizes applied physics, optical engineering and applications of photonics and laser technology whereas EQEC emphasizes basic research in laser physics, nonlinear optics and quantum optics. This combination provides a unique forum to obtain informative overviews and discuss recent advances in a wide spectrum of topics, from fundamental light- matter interactions and new sources of coherent light to technology development, system engineering and applications in industry and applied science.


2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS)

The URSI General Assembly and Scientific Symposium covers the fields of the 10 URSI Scientific Commissions.


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Periodicals related to Stellar motion

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Aerospace and Electronic Systems Magazine, IEEE

The IEEE Aerospace and Electronic Systems Magazine publishes articles concerned with the various aspects of systems for space, air, ocean, or ground environments.


Nuclear Science, IEEE Transactions on

All aspects of the theory and applications of nuclear science and engineering, including instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.


Plasma Science, IEEE Transactions on

Plasma science and engineering, including: magnetofluid dynamics and thermionics; plasma dynamics; gaseous electronics and arc technology; controlled thermonuclear fusion; electron, ion, and plasma sources; space plasmas; high-current relativistic electron beams; laser-plasma interactions; diagnostics; plasma chemistry and colloidal and solid-state plasmas.



Most published Xplore authors for Stellar motion

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Xplore Articles related to Stellar motion

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Power System Stability

IEEE Power Engineering Review, 1985

None


Laser frequency combs for precision astrophysical spectroscopy

CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference, 2009

Searches for extrasolar planets using the periodic Doppler shift of stellar spectral lines resulting from the motion of the host star around the barycentre of an extrasolar system have recently achieved a precision of 60 cm/s. To find a 1-Earth-mass planet in an Earth-like orbit, a precision of 5 cm/s is necessary. The sensitivity of astrophysical spectroscopy is presently limited ...


Computational Approach to Gravitational Waves Forms in Stellar Systems as Complex Structures through Keplerian Parameters

2009 Sixth International Conference on Fuzzy Systems and Knowledge Discovery, 2009

In this paper we investigate the gravitational waves emission by stellar dynamical structures as complex systems in the quadrupole approximation considering bounded and unbounded orbits. Precisely, after deriving analytical expressions for the gravitational wave luminosity, the total energy output and gravitational radiation amplitude, we present a computational approach to evaluate the gravitational wave-forms from elliptical, circular, parabolic and hyperbolic orbits ...


Scattering of Star Clusters: Computational Methods and Analysis

20th International Symposium on High-Performance Computing in an Advanced Collaborative Environment (HPCS'06), 2006

We report on investigations which we have carried out on the scattering of small globular clusters. We discuss the relevant theory, and the computational and analytical methods which we have developed. Initial results are presented for 26 simulations each of the collision of two King-model clusters with N = 2048 stars and \Psi _0 = 6, at two different relative ...


The naval observatory--Silent partner in surveying and navigation

OCEANS 82, 1982

The U.S. Naval Observatory's mission statement, places great emphasis on support of navigation. This paper provides a brief exposure to the history of the U.S. Naval Obseratory. It then covers fundamnental services provided to marine navigation, geodetic and surveying communities. Insofar as astrometry provides the fundamental inertial reference frame and the means to determine precise time, the U.S. Naval Observatory's ...


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Educational Resources on Stellar motion

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IEEE-USA E-Books

  • Power System Stability

    None

  • Laser frequency combs for precision astrophysical spectroscopy

    Searches for extrasolar planets using the periodic Doppler shift of stellar spectral lines resulting from the motion of the host star around the barycentre of an extrasolar system have recently achieved a precision of 60 cm/s. To find a 1-Earth-mass planet in an Earth-like orbit, a precision of 5 cm/s is necessary. The sensitivity of astrophysical spectroscopy is presently limited by its wavelength calibration sources. The combination of a laser frequency comb with a Fabry-Perot (FP) filter cavity has been suggested as a promising approach to improved sensitivity. The paper reports on the fabrication and tests of a filtered comb with up to 40-GHz (~ 1 Aring) line spacing, generated from a 1 - GHz repetition-rate source, without compromising long-term stability, reproducibility or spectral resolution. This astro-comb is well matched to the resolving power of high-resolution astrophysical spectrographs. The astro-comb should allow a precision as high as 1 cm/s in astronomical radial velocity measurements.

  • Computational Approach to Gravitational Waves Forms in Stellar Systems as Complex Structures through Keplerian Parameters

    In this paper we investigate the gravitational waves emission by stellar dynamical structures as complex systems in the quadrupole approximation considering bounded and unbounded orbits. Precisely, after deriving analytical expressions for the gravitational wave luminosity, the total energy output and gravitational radiation amplitude, we present a computational approach to evaluate the gravitational wave-forms from elliptical, circular, parabolic and hyperbolic orbits as a function of Keplerian parameters.

  • Scattering of Star Clusters: Computational Methods and Analysis

    We report on investigations which we have carried out on the scattering of small globular clusters. We discuss the relevant theory, and the computational and analytical methods which we have developed. Initial results are presented for 26 simulations each of the collision of two King-model clusters with N = 2048 stars and \Psi _0 = 6, at two different relative speeds and with varying impact parameters. TREECODE was used as the particle pusher. Effects of the transfer of energy and angular momentum from the collision into the internal motions of the clusters are discussed.

  • The naval observatory--Silent partner in surveying and navigation

    The U.S. Naval Observatory's mission statement, places great emphasis on support of navigation. This paper provides a brief exposure to the history of the U.S. Naval Obseratory. It then covers fundamnental services provided to marine navigation, geodetic and surveying communities. Insofar as astrometry provides the fundamental inertial reference frame and the means to determine precise time, the U.S. Naval Observatory's "products" are the root source of accuracy in these fields without which positioning accuracy will deteriorate over a period of time. This paper evaluates present "products" such as almanacs, precise time and stellar positions and goes on to discuss plans for the future to improve accuracy and support. Some of the areas considered are radio interferometry in support of time and polar motion, clock synchronization via satellite, automated almanacs, integration of celestial and radio navigation methods and the use of space vehicles for determination of stellar positions. The conclusion addresses anticipated accuracy requirements and the need for their identification.

  • Design of a Celestial Thomson-Scattering X-Ray Polarimeter

    A general discussion of the scientific importance and status of stellar x-ray polarimetry is presented. A stellar x-ray polarimeter designed to fit into the bottom half of the NASA Orbiting Solar Observatory-I (OSO-I) wheel compartment or other similar spacecraft is described. In this design, the linear polarization is obtained as a function of energy. The sensitivity of the polarimeter in the 4 - 24 keV energy range was optimized with the aid of a Monte Carlo simulation computer program and is given for several important celestial x-ray sources. Estimates of sensitivity thresholds for a much larger polarimeter, suitable for flight in the NASA High-Energy Astronomy Observatory (HEAO), are also given. The minimum detectable polarization for several x-ray sources is given. For example, the minimum detectable polarization at the 99% confidence level for the Crab nebula in a 24-h observation time is 1.4% for an OSO polarimeter in a compartment (50 × 30 × 30) cm and 0.27% for a HEAO polarimeter in a compartment (100 × 100 × 30) cm. These satellite experiments are feasible and will yield significant polarization results which will have an important bearing on our understanding of x-ray source mechanisms.

  • Comparison of high dynamic range near-neighbor detection approaches for TPF

    While observations of stellar Doppler shifts have recently uncovered a population of massive planets orbiting nearby stars, the direct detection of radiation from Earth-like planets is still well beyond reach, because of the high contrast ratios and small angular separations involved. However, a number of high-contrast near-neighbor detection techniques have the potential to enable the direct detection of planets as faint as the Earth from space-borne platforms. Several concepts, ranging from large-aperture visible wavelength coronagraphs to multi-spacecraft infrared interferometers, are currently being considered in the context of NASA's Terrestrial Planet Finder program. Because of their demanding requirements, identification of the most feasible near-term approach calls for careful consideration of the possibilities. This paper compares the optical requirements inherent in two of the primary candidate architectures: nulling interferometry and coronagraphy. At a given wavelength, both approaches share similarly challenging wavefront phasing requirements, but nulling has the advantage that it is sensitive closer to the optical axis. The phasing and dynamic range requirements are eased significantly in the thermal infrared as compared to the visible, but longer baselines and cryogenic cooling are then required. Thus, all of the options are rather complex.



Standards related to Stellar motion

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Jobs related to Stellar motion

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