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You searched for subject:(Love number). Showing records 1 – 3 of 3 total matches.

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Delft University of Technology

1. Kleinschneider, A.M. (author). Modelling the orbital-tidal evolution of the Galilean moon Io.

Degree: 2016, Delft University of Technology

Io, the innermost Galilean moon of Jupiter, is the most volcanically active body in the Solar System. Its volcanism is driven by tidal foces, which are in turn sustained by the Laplace resonance between Io, Europa, and Ganymede. Tides have significant impact on a body's characteristics. The liquid ocean underneath Europa's icy surface is sustained by tidal heating. Similarly, tidally-heated exomoons may be able to support life well outside the habitable zone. Tidal forces influence the orbital evolution of a body. Consequently, the orbital evolution also affects the tidal evolution. Thus, it is important to understand how tides drive the Jupiter system and how sustainable the tidal heating that Io experiences is. Additionally, the interior structure of both Jupiter and Io are not very well understood nor constrained, but govern the orbital-tidal evolution via the Love number k2 and the quality factor Q. The orbital motion and tidal evolution of the Jupiter system was modelled. For this, existing TUDAT functions, for example for third-body gravitational acceleration, were combined with new tidal acceleration models. To enable long-term stability and fast computation of the integration a 4 th -order symplectic integrator with Wisdom-Holman split was applied. This type of energy-conserving integrator has limited applicability in the case of small dissipative forces, but requires fewer force evaluation than, for example, a Runge-Kutta integrator of the same order. A variety of reasonable values for k2 and Q have been tested, as well as extreme cases. It was found that the tides raised on Jupiter by Io have a negligible effect on the evolution of the system. On the other hand, the tides raised on Io by Jupiter profoundly impact the evolution of the inner moons. Over the course of five thousand years, Io migrates inwards by several thousand kilometre. In doing so, Europa is brought into a closer orbit as well, to retain the resonance. Similarly, the eccentricity of both Io and Europa decreases, which in turn reduces the dissipated tidal energy and -heating. With Io being in spin-orbit resonance, tidal forces due to tides on Io are not readily applied. Multiple variations of analytical expressions of tides on Io have been evaluated. The results of this thesis provide a qualtiative assessment of the evolution of the Jupiter system and of the sustainability of Io's strong volcanism. The insight gathered on the modelling of tides and their effects on spin-orbit-resonant bodies in particular will benefit future work on the evolution of moons in the Solar System as well as exosystems.

Aerospace Engineering

Space Engineering

MSc Spaceflight

Advisors/Committee Members: Vermeersen, L.L.A. (mentor).

Subjects/Keywords: Io; Jupiter; tides; orbital evolution; orbital stability symplectic integrator; Love number; quality factor

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APA (6th Edition):

Kleinschneider, A. M. (. (2016). Modelling the orbital-tidal evolution of the Galilean moon Io. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:573de551-1ee3-4fbb-bb40-6a1fb21d4b61

Chicago Manual of Style (16th Edition):

Kleinschneider, A M (author). “Modelling the orbital-tidal evolution of the Galilean moon Io.” 2016. Masters Thesis, Delft University of Technology. Accessed December 04, 2020. http://resolver.tudelft.nl/uuid:573de551-1ee3-4fbb-bb40-6a1fb21d4b61.

MLA Handbook (7th Edition):

Kleinschneider, A M (author). “Modelling the orbital-tidal evolution of the Galilean moon Io.” 2016. Web. 04 Dec 2020.

Vancouver:

Kleinschneider AM(. Modelling the orbital-tidal evolution of the Galilean moon Io. [Internet] [Masters thesis]. Delft University of Technology; 2016. [cited 2020 Dec 04]. Available from: http://resolver.tudelft.nl/uuid:573de551-1ee3-4fbb-bb40-6a1fb21d4b61.

Council of Science Editors:

Kleinschneider AM(. Modelling the orbital-tidal evolution of the Galilean moon Io. [Masters Thesis]. Delft University of Technology; 2016. Available from: http://resolver.tudelft.nl/uuid:573de551-1ee3-4fbb-bb40-6a1fb21d4b61


Louisiana State University

2. Vaden, Sam. An analysis of "Printemps d'amour" (op.40) and "L'Union" (op,48): two programmatic piano solos by Louis Moreau Gottschalk.

Degree: MM, Music, 2013, Louisiana State University

Close analyses of two works by Gottschalk demonstrate, not just his consummate skill in evoking and sustaining extra-musical imagery, but also his firm control of harmony, motivic development, and form. In Printemps d'amour (1855), a mazurka inspired by Gottschalk's love for Ada McElhenney, a romance develops between two distinct theme-actors, both of whom grow ever more entwined. Comparison with Chopin's mazurka op. 50, no. 2, points out general similarities and profound differences. Analysis of L'Union (1862) follows, presenting a pasticcio rife with narrative and irony. The former manifests as a battaglia; the latter, as denial of listeners' expectations. Comparison with models for "The Star Spangled Banner," "Hail, Columbia," and "Yankee Doodle" shows why listeners will recognize each air, and how Gottschalk creates an artistic paraphrase.

Subjects/Keywords: opus 40; op. 40; analysis; Gottschalk; Printemps d'amour; Spring of Love; mazurka; Chopin; opus 50 number 2; op. 50 no. 2; L'Union; Union; op. 48; Yankee Doodle; Hail Columbia; Star-Spangled Banner; Star Spangled Banner; opus 48

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Vaden, S. (2013). An analysis of "Printemps d'amour" (op.40) and "L'Union" (op,48): two programmatic piano solos by Louis Moreau Gottschalk. (Masters Thesis). Louisiana State University. Retrieved from etd-01192014-020829 ; https://digitalcommons.lsu.edu/gradschool_theses/3146

Chicago Manual of Style (16th Edition):

Vaden, Sam. “An analysis of "Printemps d'amour" (op.40) and "L'Union" (op,48): two programmatic piano solos by Louis Moreau Gottschalk.” 2013. Masters Thesis, Louisiana State University. Accessed December 04, 2020. etd-01192014-020829 ; https://digitalcommons.lsu.edu/gradschool_theses/3146.

MLA Handbook (7th Edition):

Vaden, Sam. “An analysis of "Printemps d'amour" (op.40) and "L'Union" (op,48): two programmatic piano solos by Louis Moreau Gottschalk.” 2013. Web. 04 Dec 2020.

Vancouver:

Vaden S. An analysis of "Printemps d'amour" (op.40) and "L'Union" (op,48): two programmatic piano solos by Louis Moreau Gottschalk. [Internet] [Masters thesis]. Louisiana State University; 2013. [cited 2020 Dec 04]. Available from: etd-01192014-020829 ; https://digitalcommons.lsu.edu/gradschool_theses/3146.

Council of Science Editors:

Vaden S. An analysis of "Printemps d'amour" (op.40) and "L'Union" (op,48): two programmatic piano solos by Louis Moreau Gottschalk. [Masters Thesis]. Louisiana State University; 2013. Available from: etd-01192014-020829 ; https://digitalcommons.lsu.edu/gradschool_theses/3146


Ohio University

3. Al Mamun, Md Abdullah. Nuclei, Nucleons and Quarks in Astrophysical Phenomena.

Degree: PhD, Physics and Astronomy (Arts and Sciences), 2019, Ohio University

The work presented in this dissertation is concerned with properties of nuclei, their internal constituents, nucleons and quarks, of which nucleons are made, in the astrophysical settings of nucleosynthesis, core-collapse supernovae, neutron stars and their mergers. Through energetic considerations, nuclei far-off the stability line are expected to be encountered in all of the arenas mentioned above. Properties of some of these nuclei are expected to be measured in upcoming rare-isotope laboratories across the world. Focussing on the pairing properties of extremely proton- or neutron-rich nuclei, a means to set bounds on their pairing energies was devised in the published work reported here. These bounds were achieved through the introduction of a new model, the Random Spacing Model, in which single-particle energy levels randomly distributed around the Fermi surface of a nucleus were employed. This arrangement ensured that it would encompass predictions of all possible energy density functionals currently being employed. Another new feature of this model is the inclusion of pairing gap fluctuations that go beyond the commonly used mean field approach of determining pairing energies of nuclei. These features, when combined together, enabled us to reproduce the S-shaped behavior of the heat capacity measured in laboratory nuclei. In future work, nuclear level densities, which depend sensitively on pairing energies at low excitation energies, will be calculated using the Random Spacing Model with the inclusion of pairing fluctuations. For baryon densities below about two thirds the central density of heavy nuclei, a mixture of light nuclear clusters such as { α}, { d}, { t}, etc., are favored to be present along with nucleons (neutrons and protons), charge balancing electrons, and heavy nuclei. The concentration of each species is determined by minimizing the free energy density of the system with respect to baryon density, electron fraction and temperature. The new element of our published work in this density region was to generalize the familiar excluded volume approach that considered α-particles as representative of all of the light nuclear clusters. Comparisons with the alternative virial expansion approach were made, and the strengths and drawbacks of each approach were critically assessed. In on-going work, a new mean field approach that uses the Hartree-Fock approximation is being developed to overcome the shortcomings of the above two approaches. Its importance lies in the fact that the observed emergent neutrino and photon spectra in astrophysical phenomena are shaped by the low density regions of stellar exteriors.At the supra-nuclear densities encountered in neutron stars, the possibility that quark degrees of freedom may be liberated from their confining hadrons (baryons and mesons) ever since the theory of strong interactions, Quantum Chromo Dynamics (QCD), was put forth in the early 1970's. However, the precise nature of the hadron-to-quark transition is not known at finite… Advisors/Committee Members: Prakash, Madappa (Advisor).

Subjects/Keywords: Astrophysics; Nuclear Physics; Physics; Theoretical Physics; Nuclei; nucleons; quarks; astrophysics; nuclear physics; neutron stars; gravitational waves; phase transition; Love number; dense matter; cold dense matter; QCD phase transition; level density; pairing properties; superconductivity; superfluidity

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6th Edition):

Al Mamun, M. A. (2019). Nuclei, Nucleons and Quarks in Astrophysical Phenomena. (Doctoral Dissertation). Ohio University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1563991151449461

Chicago Manual of Style (16th Edition):

Al Mamun, Md Abdullah. “Nuclei, Nucleons and Quarks in Astrophysical Phenomena.” 2019. Doctoral Dissertation, Ohio University. Accessed December 04, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1563991151449461.

MLA Handbook (7th Edition):

Al Mamun, Md Abdullah. “Nuclei, Nucleons and Quarks in Astrophysical Phenomena.” 2019. Web. 04 Dec 2020.

Vancouver:

Al Mamun MA. Nuclei, Nucleons and Quarks in Astrophysical Phenomena. [Internet] [Doctoral dissertation]. Ohio University; 2019. [cited 2020 Dec 04]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1563991151449461.

Council of Science Editors:

Al Mamun MA. Nuclei, Nucleons and Quarks in Astrophysical Phenomena. [Doctoral Dissertation]. Ohio University; 2019. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1563991151449461

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