Studied by 1 personabsorption spectrum
is produced when another object absorbs continuous light at certain wavelengths.
chart with dips
absorption
emission spectrum
emission spectra are created when something is heated and emits photons at specific wavelengths
chart of spikes that touch the bottom
emission
continuous spectrum
continuous spectra are created when photons are measured at every wavelength.
blue shift
red shift
flux
what does a spectrum do?
a. A spectrum splits an atom into 2 smaller atoms
b. A spectrum refracts white light into the colors of the rainbow
c. A spectrum causes an electron to descend 1 or more energy levels, emitting a photon in the process
d. A spectrum counts the number of photons at every wavelength (or frequency)
a. A spectrum splits an atom into 2 smaller atoms
T/F an electron will absorb a photon if it descends one or more energy levels of an atom
false
In what part of the EM spectrum is the Sun emitting the most photons?
optical
What type of spectrum does the Sun produce?
absorption
Why does the apparent brightness (or apparent magnitude m) of a celestial object decrease when the object is further away?
Light spreads out, therefore flux decreases the farther the observer is
How is the absolute magnitude of a celestial object defined?
The apparent magnitude as measured from 10 parsecs
A magnitude 10 star is times brighter than a magnitude 15 star
100
Note
Flashcard