Photometric Investigations Of Several Early

Chapter 1
Introduction

1.1. Variable Stars
1.2. Intrinsic Variable Stars
1.3. Extrinsic Variable Stars

Chapter 2
Solar TErrestrial RElations Observatory (STEREO)

2.1. STEREO Data and Reduction Procedures

Chapter 3
ANALysıs TECHNIQUES of NUMERICAL DATA
3.1. Introduction
3.2. Lomb-Scargle Periodogram (LS)
3.3. Phase Dispersion Minimization (PDM)
3.4. Period04
3.5. Wavelet Transforms
3.6. Discussion

Chapter 4
Frequency ANALYSeS of synthetic lıght curves

4.1. Introduction
4.2. Noise Types
4.3. The Auto-correlation Function
4.4. Synthetic Light Curves
4.5. Results
4.6. Discussion

Chapter 5
PerIOD evolutıon of some chemically peculıar STARS

5.1. Introduction
5.2. Analysis of STEREO Data
5.3. Other Procedures
5.4. Target Selection
5.5. Results
5.6. Discussion

Chapter 6
Photometric and spectroscopic evolution of some brıght be-stars: the relatıon between non-radıal pulsatıons and dısk structures

6.1. Introduction
6.2. Selection of Be-Star Samples
6.3. Data Analysis
6.4. Results
6.5. Discussion

Chapter 7
Pulsatıonal Characteristıcs Of A Sample Of Scutı Stars And Theır Relatıons Between Stellar Parameters

7.1. Introduction
7.2. Analysis of STEREO Data
7.3. STEREO Samples of δ Scuti Stars
7.4. Results
7.5. Discussion

Chapter 8
Overview And Future Work