What does GDDS mean in UNCLASSIFIED
GDDS, abbreviated as Gemini Deep Deep Survey, is an astronomical survey conducted using the Gemini Multi-Object Spectrograph (GMOS) on the Gemini North and South telescopes. The primary goal of the GDDS is to study the formation and evolution of galaxies in the early Universe.
GDDS meaning in Unclassified in Miscellaneous
GDDS mostly used in an acronym Unclassified in Category Miscellaneous that means Gemini Deep Deep Survey
Shorthand: GDDS,
Full Form: Gemini Deep Deep Survey
For more information of "Gemini Deep Deep Survey", see the section below.
Introduction: Gemini Deep Deep Survey (GDDS)
Key Features of GDDS
- Observational Depth: GDDS has observed a wide field of view, covering an area of 1.5 square degrees, to a depth that allows the detection of faint galaxies at high redshifts (i.e., when the Universe was young).
- Multi-Wavelength Data: The survey combines data obtained in optical and infrared wavelengths, providing a comprehensive view of the target galaxies.
- Large Sample Size: GDDS has collected spectra for over 100,000 galaxies, providing a statistically significant sample for studying galaxy evolution.
- Redshift Range: The survey covers a redshift range of 1.5 to 3.5, corresponding to a lookback time of approximately 8 to 12 billion years.
Scientific Objectives
The GDDS aims to address fundamental questions about galaxy formation and evolution, such as:
- The formation and assembly of galaxies in the early Universe
- The role of mergers and interactions in galaxy evolution
- The growth of supermassive black holes in galaxy centers
- The chemical enrichment of the intergalactic medium
Essential Questions and Answers on Gemini Deep Deep Survey in "MISCELLANEOUS»UNFILED"
What is the Gemini Deep Deep Survey (GDDS)?
The Gemini Deep Deep Survey (GDDS) is a deep imaging survey conducted using the Gemini North and South telescopes in Hawaii and Chile. The survey covers a total area of 11 square degrees in the constellation of Ursa Major and reaches a faint magnitude limit of 27.5 in the z-band. The GDDS is one of the deepest optical surveys ever conducted and has been used to study a wide range of astronomical objects, including galaxies, stars, and supernovae.
What are the scientific goals of the GDDS?
The GDDS has a number of scientific goals, including:
- To study the evolution of galaxies over time
- To search for faint galaxies that are not visible in shallower surveys
- To measure the abundance of dark matter in the universe
- To study the properties of supernovae
The GDDS has been used to make a number of important discoveries, including the discovery of a population of extremely faint galaxies that are likely to be the progenitors of present-day galaxies.
How was the GDDS conducted?
The GDDS was conducted using the Gemini North and South telescopes in Hawaii and Chile. The telescopes were equipped with special cameras that were able to detect faint objects. The survey took several years to complete and required a total of 100 nights of observing time.
What are the results of the GDDS?
The GDDS has produced a wealth of data that has been used to study a wide range of astronomical objects. Some of the most important results of the GDDS include:
- The discovery of a population of extremely faint galaxies that are likely to be the progenitors of present-day galaxies
- The measurement of the abundance of dark matter in the universe
- The study of the properties of supernovae
The GDDS has been a major contribution to our understanding of the universe and has helped to pave the way for future deep imaging surveys.
Final Words: The GDDS has provided valuable insights into the early history of the Universe and galaxy evolution. The survey has contributed to our understanding of the formation and growth of galaxies, shedding light on the fundamental processes that shaped the cosmos. The data from GDDS continues to be used by researchers to explore the mysteries of the early Universe and unravel the secrets of galaxy evolution.