Using HERA for Spectroscopy
Spectroscopy is one of the most powerful tools that an astronomer can use
to study objects near and far. By mapping how much energy is put out at different
wavelengths of light, astronomers can tell what kinds of processes are producing the
light they see. In addition, they can figure out what elements are present in distant objects, from
nebula to galaxies, stars to accretion disks around black holes.
We have two spectroscopy lessons:
Before proceeding with the lessons, we recommend that you beef up on
spectroscopy and mathematical modeling. For both investigations you
will be using spectra – find out more about spectra using the "What
is Spectroscopy?" link below. You will use a mathematical model to point
the finger at suspected elements – learn more about models using
the "What is a Model?" link below and determine how good your case
against those elements will be using the "How Good is the Model?" link
below.
When you are familiar with spectroscopy and mathematical models, choose an
investigation below:
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