Difference between revisions of "Background/general reference"
m |
m |
||
| (11 intermediate revisions by the same user not shown) | |||
| Line 2: | Line 2: | ||
=Starting from the very beginning= | =Starting from the very beginning= | ||
| − | [[How science works and other philosophical musings]] | + | [[How science works and other philosophical musings]] |
[[Light beyond the visible]] -- There are a LOT of resources available all over the web on this, so just a few links listed here. | [[Light beyond the visible]] -- There are a LOT of resources available all over the web on this, so just a few links listed here. | ||
[[Archives]] -- what an archive is and why it's important. | [[Archives]] -- what an archive is and why it's important. | ||
| + | |||
| + | [[Astronomers as people]] | ||
=Reference pages= | =Reference pages= | ||
| Line 16: | Line 18: | ||
=Critically important concepts= | =Critically important concepts= | ||
| − | [[Literature searching]] -- How can you find out what scientists already know about a particular astronomy topic or object? Literature searching is an '''essential''' part of doing scientific research | + | [[Literature searching]] -- How can you find out what scientists already know about a particular astronomy topic or object? Literature searching is an '''essential''' part of doing scientific research. |
[[Resolution]] -- spatial resolution matters! | [[Resolution]] -- spatial resolution matters! | ||
| − | [[Magnitudes]] -- brightnesses of things are often given in magnitudes. | + | [[Magnitudes]] -- brightnesses of astronomical things are often given in magnitudes. |
| − | |||
| − | |||
[[FITS format]] -- professional astronomy images are usually in FITS format. If you're doing science, you shouldn't be using gifs, jpgs, pngs. | [[FITS format]] -- professional astronomy images are usually in FITS format. If you're doing science, you shouldn't be using gifs, jpgs, pngs. | ||
| Line 28: | Line 28: | ||
[[Mosaics]] -- Typically objects or regions in space we want to study are too large for the telescope to capture in a single image or frame, so the telescope has to take many frames which are combined using software into a single image or what is commonly called a mosaic (or sometimes a map). | [[Mosaics]] -- Typically objects or regions in space we want to study are too large for the telescope to capture in a single image or frame, so the telescope has to take many frames which are combined using software into a single image or what is commonly called a mosaic (or sometimes a map). | ||
| − | + | [[Astronomical imaging]] -- includes color tables and stretches | |
| − | + | [[Image artifacts]] | |
| − | + | [[Filters]] | |
[[Photometry (concept)]] -- overview of what photometry is. (Mechanics of how to [[Photometry (finding it) | find other people's photometry]] or [[Photometry (doing it)| how to do your own photometry]] are in other pages.) | [[Photometry (concept)]] -- overview of what photometry is. (Mechanics of how to [[Photometry (finding it) | find other people's photometry]] or [[Photometry (doing it)| how to do your own photometry]] are in other pages.) | ||
| Line 38: | Line 38: | ||
[[Spectral Energy Distributions (SEDs)]] -- a way of looking at the energy emitted by a given object at many wavelengths at once. SEDs are ubiquitous in IR astronomy. | [[Spectral Energy Distributions (SEDs)]] -- a way of looking at the energy emitted by a given object at many wavelengths at once. SEDs are ubiquitous in IR astronomy. | ||
| + | [[Color-color and color-magnitude diagrams]] -- a way of looking at the brightnesses of up to 4 bands per object for many objects at once. Color-magnitude diagrams and color-color diagrams are ubiquitous in astronomy. | ||
| + | |||
| + | [[Color selection]] -- how to find types of objects using color-magnitude and color-color diagrams | ||
=Other concepts= | =Other concepts= | ||
| Line 44: | Line 47: | ||
[[Diffraction]] -- related to, but different from, resolution. Diffraction matters! The 'rings' you see around some Spitzer sources aren't the dust rings around those sources! | [[Diffraction]] -- related to, but different from, resolution. Diffraction matters! The 'rings' you see around some Spitzer sources aren't the dust rings around those sources! | ||
| − | [[Confusion]] -- Depending on where you are looking and what wavelength you are using and specifically what you are doing, confusion can matter | + | [[Confusion]] -- Depending on where you are looking and what wavelength you are using and specifically what you are doing, confusion can matter. |
| − | [[Infrared Background]] -- Depending on where you are looking and what wavelength you are using and specifically what you are doing, the IR background can matter | + | [[Infrared Background]] -- Depending on where you are looking and what wavelength you are using and specifically what you are doing, the IR background can matter. |
<font color=red>Everything below this is a bookmark to something that needs to be cleaned up and placed properly above</font> | <font color=red>Everything below this is a bookmark to something that needs to be cleaned up and placed properly above</font> | ||
| − | |||
| − | |||
| − | |||
| − | |||
Latest revision as of 20:10, 11 August 2020
Contents
Starting from the very beginning
How science works and other philosophical musings
Light beyond the visible -- There are a LOT of resources available all over the web on this, so just a few links listed here.
Archives -- what an archive is and why it's important.
Reference pages
Central wavelengths and zero points -- A reference page for bands frequently used in NITARP.
Units -- Reference page for units, including flux/flux density
Critically important concepts
Literature searching -- How can you find out what scientists already know about a particular astronomy topic or object? Literature searching is an essential part of doing scientific research.
Resolution -- spatial resolution matters!
Magnitudes -- brightnesses of astronomical things are often given in magnitudes.
FITS format -- professional astronomy images are usually in FITS format. If you're doing science, you shouldn't be using gifs, jpgs, pngs.
Mosaics -- Typically objects or regions in space we want to study are too large for the telescope to capture in a single image or frame, so the telescope has to take many frames which are combined using software into a single image or what is commonly called a mosaic (or sometimes a map).
Astronomical imaging -- includes color tables and stretches
Photometry (concept) -- overview of what photometry is. (Mechanics of how to find other people's photometry or how to do your own photometry are in other pages.)
Spectral Energy Distributions (SEDs) -- a way of looking at the energy emitted by a given object at many wavelengths at once. SEDs are ubiquitous in IR astronomy.
Color-color and color-magnitude diagrams -- a way of looking at the brightnesses of up to 4 bands per object for many objects at once. Color-magnitude diagrams and color-color diagrams are ubiquitous in astronomy.
Color selection -- how to find types of objects using color-magnitude and color-color diagrams
Other concepts
Diffraction -- related to, but different from, resolution. Diffraction matters! The 'rings' you see around some Spitzer sources aren't the dust rings around those sources!
Confusion -- Depending on where you are looking and what wavelength you are using and specifically what you are doing, confusion can matter.
Infrared Background -- Depending on where you are looking and what wavelength you are using and specifically what you are doing, the IR background can matter.
Everything below this is a bookmark to something that needs to be cleaned up and placed properly above
Time Series Analysis
What is a periodogram? -- what periodograms are, why you care about them, and how to use the NASA Exoplanet Archive's tool for determining them.
Telescopes
need better title, sorting
Movie (31:09) on IR missions -- Dr. Luisa Rebull (2015)
How does the Spitzer Telescope work? A very general introduction to the Spitzer Space Telescope, with links to go to for more information. need to chase sublinks and file them
What other kinds of archival data are part of NITARP? A general introduction to all of the archives housed at IPAC that are part of NITARP.
Comparison of other missions to Spitzer (dated; need to update this!) need to chase sublinks and file them
