Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"trans-Neptunian Objects"”.
-
Revealing Refractory Materials on Trans-Neptunian Objects and Centaurs via Reflectance Spectroscopy
… and near-infrared spectroscopic observations of Trans-Neptunian Objects and centaurs obtained over four observing runs at the ESOVery Large Telescope. The reflectance spectra of these minor planets were investigated to determine whether silicates and refractory organics, which are predicted to be …
-
An upper limit on the abundance of small trans-Neptunian objects from X-ray occultations
I describe the detection of 201 highly significant dips in the count rate of Sco X-1 from a search of some 500 ks of archival RXTE PCA data, which could be caused by TNO occultations. I show that most of these dips are correlated with particle showers in the PCA, suggesting that the dips in count …
-
Astrometria, efemérides e ocultações estelares de satélites irregulares e corpos do sistema solar exterior
The study of outer Solar System bodies like trans-Neptunian objects (TNOs), Centaurs and Irregular Satellites (relatively unaltered remnants from the early Solar System) helps us to understand the formation and evolution of the Solar System. Only a few spacecrafts were sent to explore these regions …
-
Stellar occultations by bodies in the outer solar system at the South African Astronomical Observatory
… System is harbored by primitive bodies called trans-Neptunian objects (TNOs). Their preserved state is due to these bodies having orbits at and beyond that of Neptune, as this specific area is considered to be the least thermally modified in the Solar System and could contain a large population …
-
SPECTROSCOPIC STUDY OF ICES WITH ASTROPHYSICAL INTEREST
<p>In this thesis, I investigate the physical and chemical processes of simulated cosmic dust grainsand planetary surface analogues in laboratory experiments performed at the Syracuse University Astrophysics and Surface Science Laboratory. I have studied the mid-infrared (Mid-IR) bands of thin …