William Paterson University
Jason Kendall is adjunct instructor of Astronomy at William Paterson University.
Jason is teaching one section of General Astronomy in the Fall of 2019:
Online Introductory Astronomy ClassCRN: 44146, PHYS 1700-81, Online lectures and laboratory activities.
Module 1: Telescopes: the Tools of AstronomySupplements and Credits
Supplement the videos with "OpenStax Astronomy"
01: Telescopes: Refraction and Reflection
All telescopes rely on some ability to focus light to a point. The two ways are refraction and reflection. Here we describe what they are in the context of telescopes.
- Galileo's telescope
- Geometric Normal
- Snell's Law
- Refractive Index
- Why is light slower in glass? - Sixty Symbols
- Richard Feynman - The Character of Physical Law - Part 1
- Richard Feynman - QED: Photons -- Corpuscles of Light
02: Telescopes, part 2: Angular Resolution and Seeing
A key aspect of telescopes is their angular resolution. Here we discuss what makes up the concept of angular resolution and seeing.
- Angular resolution
- The Rayleigh Criterion
- Diffraction-limited system
- Airy Disk
- Tangent of an angle
03: Telescopes: Plate Scale, Focal Ratio and Magnification
Now we can see the last bits of basic telescopes, with focal ratio, magnificantion, plate scale and so on.
04: Extremely Basic Concepts about CCDsHerein we chat about the nature of how images are created digitally. We look at it from a hardware point of view, and we see that the current way of deoing images relies on tiny boxes.
05: Big Telescopes and High Resolution
Herein we take a look at big telescopes around the world and in space. This is meant as a basic introduction to some of the greatest resources ever constructed. I'm showing off their websites and what the instruments look like.
- Hubble Space Telescope
- Keck Observatory
- Gemini Observatory
- National Optical Astronomical Observatory
- European Southern Observatory
- UCLA Galactic Center Group
- Adaptive Optics
06: Radio Telescopes
Herein, we learn about radio telescopes, what they do, what their function is, and some of the major radio facilities around the world. We also examine angular resolution and the need for interferometry in radio telescopes.
- Electromagnetic Spectrum
- Radio Window
- Radio Astronomy
- National Radio Astronomy Observatory (NRAO)
- Green Bank Observatory
- Arecibo Observatory
- Five-hundred-meter Aperture Spherical radio Telescope (FAST)
- Centaurus A recent news
- NRAO Very Large Array
- Filming Contact at the VLA
- Radio Interferometry
- NRAO Very Long Baseline Array (VLBA)
- Event Horizon Telescope
- M87 using the Canada-France-Hawaii Telescope
- Black Hole-Powered Jet of Electrons and Sub-Atomic Particles Streams From Center of Galaxy M87
- NRAO M87 with its jet
07: Space-Based Telescopes
Herein we learn about some of the more prominent space-based observatories, what they see, and how they do what they do.
- Astronomical Seeing
- Balloon-based Astronomy
- Infrared viewing through smog
- Hubble's view of M16
- Hubble's view of the Trapezium
- Spitzer Space Telescope
- Spitzer's view of the Dragon's Lair
- James Webb Space Telescope
- Galaxy Evolution Explorer (GALEX)
- Nuclear Spectroscopic Telescope Array (NuSTAR)
- Chandra X-ray Observatory
- Compton Gamma Ray Observatory
- Fermi Gamma-ray Space Telescope
- Fermi's Five-year View of the Gamma-ray Sky
- Gravitational Waves seen by Fermi and others
- Kepler Space Telescope
- Transiting Exoplanet Survey Satellite (TESS)
08: All Sky Astronomical Surveys
Herein we learn about the nature of full-sky surveys. It is highly instructive to make maps of the entire sky, just like it's important to make maps of our spherical Earth. We look at many wavelength bands and how the sky looks at all those wavelengths.
- Earth Aitoff Projection Map
- List of Full-Sky Surveys
- Axel Mellinger and NASA / Goddard Space Flight Center (GSFC) Optical Full Sky Map
- Axel Mellinger's All-Sky Panorama from 2009
- H-Alpha data from WHAM, VTSS and SHASSA
- Douglas Finkbeiner's H-Alpha survey
- NASA's Wide-field Infrared Survey Explorer
- ESA's Planck Satellite
- Neutral hydrogen all sky map
- Hydrogen 21cm spin-flip transition
- Max Planck Institute's 73cm Radio survey
- The LWA1 Low Frequency Sky Survey
- ROSAT X-Ray Diffuse Background
- Fermi Gamma Ray Telescope
- Gamma Ray Bursts
- The Large Synoptic Survey Telescope