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 20 of 303 for “"photometric"”.
-
Cosmology Using Photometric Samples of Type Ia Supernovae: The First Joint Photometric Light Curve Analysis
… do not know the typing of the supernova. These `photometric samples' are a significant switch from spectroscopic samples, in which every SNIa used in the analysis is spectroscopically identified. The motivation for this switch is the opportunity to have $\sim 10$ times larger samples than what …
-
Robotic control of a photometric telescope
The objective of this project was to design and implement the telescope control software for the Alan Cousins Telescope (ACT), a robotic telescope at the Sutherland, South Africa, site of the South African Astronomical Observatory (SAAO). The approach adopted involved a high level of modularisation …
-
Modeling large scale structure from photometric surveys
… on larger scales. We analyze the clustering of photometrically selected galaxy pairs by using the HOD model. Our results are successfully fit by these HOD models, and we see the separation of “1-halo” and “2-halo” clustering terms for both single galaxies and galaxy pairs. We find that the …
-
Photometric stereo for micro-scale shape reconstruction
… for 3D micro-scale shape reconstruction using photometric stereo (PS) with surface normal integration (SNI). Based on the proposed approach, a portable cost-effective stationary system is developed to capture 3D shapes in the order of micrometer scale. The PS with SNI technique is adopted to …
-
Spectroscopic and photometric investigation of selected hot stars
Ke studiu horkých hvězd potřebujeme určit co nejpřesněji jejich vlastnosti. Tato práce se zaměřuje na zpřesnění parametrů dvou horkých hvězd a přispívá tak k souboru hvězd se známými parametry. Přestože pro obě hvězdy, deltu Orionis A a omegu Canis Majoris existuje mnoho napozorovaných dat, …
-
Photometric monitoring of early type emission line stars
A programme of simultaneous optical (UBVRI) and infrared (JHKL MNQ) photometry of early type, emission line, stars is described. Particular emphasis is placed on observations of suspected pre-main-sequence objects such as Herbig Ae/Be stars. The observations, together with data from the IRAS point …
-
Structural and Photometric Properties of Extragalactic Stellar Spheroids
After an overview of the science of galaxy morphology, a new classification for galactic form, based upon the Yerkes system, is presented. This classification scheme is then applied to the study of the role of environment in determining the nature of galaxy populations. By examining the …
-
Photometric Explorations of Volatile Shifts on Pluto’s Surface
Pluto was observed over the course of three months with the goal of generating light curves to determine if volatile transport had occurred since the New Horizons Mission in 2015. Pluto’s surface is primarily made up of volatile ices, which are thought to migrate as Pluto’s seasons change. Further …
-
A Photometric Investigation of the Major Uranian Satellites
… and to inform mission planning. We conducted a photometric study, primarily using MIT’s Wallace Astrophysical Observatory, and report the lightcurves of Titania and Oberon in the Sloan g’, r’, and i’ filters. Further observations from larger telescopes are needed, but these data may indicate …
-
Photometric studies of non-aqueous acid-base reactions
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemistry, 1959.
-
A Photometric Study of the Eclipsing Binary V574 Lyrae
… of contributing useful data to this cause, a photometric study of the eclipsing binary system V574 Lyrae (Lyr) was undertaken to determine the system's physical parameters and to create a model of the system. Data were collected with a 0.36 m Ritchey-Chr'etien telescope and the Sloan g', r', …
-
Probabilistic photometric redshifts in the era of petascale astronomy
With the growth of large photometric surveys, accurately estimating photometric redshifts, preferably as a probability density function (PDF), and fully understanding the implicit systematic uncertainties in this process has become increasingly important. These surveys are expected to obtain images …
Page 1 of 16