Limitations of Single Dish Astronomy

Slides:



Advertisements
Similar presentations
Astronomy Notes to Accompany the Text
Advertisements

A: Wave Phenomena A.5 Resolution. Resolution Resolution refers to the ability to distinguish two objects that are close together. E.g. Two distant stars.
Optics and Telescopes Chapter Six. Telescopes The fundamental purpose of any telescope is to gather more light than the naked eye can In many cases telescopes.
Chapter 5 Telescopes. 5.1 Optical Telescopes The Hubble Space Telescope 5.2 Telescope Size The Hubble Space Telescope 5.3 Images and Detectors Diffraction.
The waves spread out from the opening!
The Effect of the Apparent Baseline on Fringe Amplitude and Period By Dana Dawson Rhonda Tully July 2004 MST 562.
Probing the field of Radio Astronomy with the SKA and the Hartebeesthoek Radio Observatory: An Engineer’s perspective Sunelle Otto Hartebeesthoek Radio.
Measuring the Gas in Galaxies in the Distant Past Philip Lah Too late. Here comes the SKA.
Chapter 3: Telescopes. Goals Describe basic types of optical telescopes Explain why bigger is better for telescopes Describe how the Earth’s atmosphere.
Astronomy 101 Section 020 Lecture 6 Optics and Telescopes John T. McGraw, Professor Laurel Ladwig, Planetarium Manager.
Physics 202: Introduction to Astronomy – Lecture 6 Carsten Denker Physics Department Center for Solar–Terrestrial Research.
Physics 202: Introduction to Astronomy – Lecture 6 Carsten Denker Physics Department Center for Solar–Terrestrial Research.
Telescopes Collect more light than eye More detailed images than human eye Larger aperture is better –Aperture refers to the diameter of the primary lens.
Optics and Telescopes Chapter Six.
Telescopes & Light. The Powers of a Telescope Light Gathering Power Light Gathering Power : Astronomers prefer *large* telescopes. A large telescope can.
Topic 9.4 is an extension of Topic 4. Essential idea: Resolution places an absolute limit on the extent to which an optical or other system can separate.
Chapter 25 Optical Instruments.
Chapter 5.
VLBI in Africa Michael Bietenholz Hartebeesthoek Radio Observatory.
Modern Telescopes Lecture 12. Imaging Astronomy in 19c Photography in 19c revolutionize the astronomy Photography in 19c revolutionize the astronomy 
© 2010 Pearson Education, Inc. Chapter 6 Telescopes: Portals of Discovery.
An African VLBI network of radio telescopes as an SKA precursor Michael Gaylard Hartebeesthoek Radio Astronomy Observatory (HartRAO) P. O. Box 443, Krugersdorp.
Circular aperture Rectangular aperture Fraunhofer Diffraction.
Midterm Distribution 31 A’s, 37 B’s, 26 C’s, 21 D’s, 17 F’s.
Tools for Studying Space. © 2011 Pearson Education, Inc. Telescopes.
Ch. 28 Sec. 1 Tools of Astronomy. Tools  Radiation  Light is the best tool used to observe and learn about the universe  Before telescopes, scientist.
Telescopes. Images can be formed through reflection (mirror) or refraction (lens). Reflecting mirror Optical Telescopes.
Lecture Outlines Astronomy Today 7th Edition Chaisson/McMillan © 2011 Pearson Education, Inc. Chapter 5.
is transparent ERAU Astronomical Observatory Meade inch Schmidt Cassegrain Reflecting Telescope.
Physics 1C Lecture 27B.
The waves spread out from the opening!
Sketch the variation with angle of diffraction of the relative intensity of light emitted by two point sources that has been diffracted at a single.
Telescopes The instruments we use to study the universe.
Russian 6-m Nasmyth focus platforms Problems: 17-ton mirror has thermal time constant of a few days; location based on politics. Note alt-az mount.
© 2007 Pearson Prentice Hall This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching their.
Chapter 5 Telescopes Chapter 5 opener. This composite photograph shows two of the premier optical telescopes available to astronomers today. At the top,
Chapter 4: Telescopes. E O Optical telescopes: Reflectors and refractors Refractors use lenses E: eyepiece O: objective.
Interference and Diffraction. Conditions for Interference Coherent Sources - The phase between waves from the multiple sources must be constant. Monochromatic.
Resolution Extracted from a resource to College Physics by Serway and Faughn Chap 25.
Telescopes Resolution - Degree to which fine detail can be distinguished Resolution - Degree to which fine detail can be distinguished Fundamentally an.
Astronomy: A Beginner’s Guide to the Universe Seventh Edition © 2013 Pearson Education, Inc. Chapter 3 Lecture Telescopes.
Tools of Astronomy Chapter 28.1 Pages The Best Tool The Light that comes to earth from distant objects is the best tool that astronomers can.
11: Wave Phenomena 11.4 Resolution. Resolution Resolution refers to the ability to distinguish two objects that are close together. E.g. Two distant stars.
Student of the Week. Essential Idea:  Resolution places an absolute limit on the extent to which an optical or other system can separate images of.
Radio Telescopes. Angular resolution Distant objects are separated by an angle. –Degrees, arc-minutes, arc-seconds Angular resolution refers to the ability.
Young’s Double Slit Contents: Interference Diffraction Young’s Double Slit Angle Distance Single slit Rayleigh Criterion.
Rayleigh Criterion Contents: Diffraction patterns The Rayleigh criterion.
Telescopes. Light Hitting a Telescope Mirror huge mirror near a star * * small mirror far from a star In the second case (reality), light rays from any.
WVU Astronomy / Engineering and The Green Bank Observatory Richard Prestage Scientist, NRAO.
 Resolution.  The astronomers tell us that many of the stars that we observe with the naked eye are in fact binary stars  That is, what we see as a.
Details: Gridding, Weight Functions, the W-term
Course Details Fundamentals of Radio Interferometry NASSP 2016
Resolving Power
© 2017 Pearson Education, Inc.
Modern Interferometric Arrays
High-performance Signal and Data Processing:
Wave Phenomena Resolution
van Cittert-Zernike Theorem
Telescopes & Light.
Topic 9: Wave phenomena - AHL 9.4 – Resolution
The Rayleigh criterion
Example: 633 nm laser light is passed through a narrow slit and a diffraction pattern is observed on a screen 6.0 m away. The distance on the screen.
Lecture 7 – September 10, 2003 Telescopes
Topic 9: Wave phenomena - AHL 9.4 – Resolution
Optical telescopes, radio telescopes, and other technologies advance our understanding of space. Section 3.0.
Optical telescopes, radio telescopes, and other technologies advance our understanding of space. Section 3.0.
Radio Telescopes Elliott.
The waves spread out from the opening!
DV = Development Programme
Angular Resolution 1. 1.
Presentation transcript:

Limitations of Single Dish Astronomy Fundamentals of Radio Interferometry: Chapter 1, Section 10 Dr. Griffin Foster SKA-SA/Rhodes University NASSP 2016

26 m Dish at Hartebeesthoek Radio Astronomy Observatory (HartRAO) NASSP 2016

KAT-7 NASSP 2016

Angular Resolution Aperture Size: Rayleigh criterion: Dish Diameter: Observing Wavelength: NASSP 2016

Physical limitations of single dishes NASSP 2016

Physical limitations of single dishes NASSP 2016

Novel Solutions to Physical Limits NASSP 2016

Creating a Synthesized Telescope NASSP 2016

Creating a Synthesized Telescope NASSP 2016

Creating a Synthesized Telescope NASSP 2016

Creating a Synthesized Telescope NASSP 2016

Creating a Synthesized Telescope NASSP 2016

Creating a Synthesized Telescope NASSP 2016

KAT-7: A Synthesized Telescope of Telescopes NASSP 2016

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.