AS 1001 -- Stars and Elementary Astrophysics
Keith Horne -- University of St.Andrews
Astronomy Picture of the Day
.
concam.net -- continuous
sky images taken with fish-eye lenses and CCD cameras
from different observatories around the globe.
KDH 2003 Lectures
sea01.pdf .
introduction, atmospheric effects, scintillation, seeing.
sea02.pdf .
pinhole camera, refractors, reflectors, aperture, focal length, F/ number,
fast/slow, image size, magnification, resolution.
sea03.pdf .
instruments, photographic plates, CCDs, photometers, spectrographs,
prisms, gratings, x-ray telescopes.
sea04a.pdf .
radio telescopes, resolution, interferometry, aperture synthesis.
sea04b.pdf .
astronomical distances, parallax, parsec, inverse-square law.
sea05.pdf .
magnitudes, apparent mag, absolute mag, distance modulus,
light speed, frequency, wavelength, photon energy,
blackbody spectrum, star colours, wien law, stefan-boltzman law.
sea06.pdf .
review mags+blackbodies. L~R^2T^4. white dwarf vs red giant,
life cycle of sun, how a star works, stellar evolution,
planetary nebulae, colour indices, colour-mag diagram.
sea07.pdf .
Spectral analysis, Fraunhofer lines, Kirchoff laws, atoms, ions,
atomic energy levels, atomic
transitions (bound-bound, bound-free, free-free),
energy conservation,
Lyman and Balmer series lines, limit, continuum,
Rydberg formula.
sea08.pdf .
Line widths, strengths, equivalent width, Doppler shift,
redshift, broadening
mechanisms (thermal, rotation, Zeeman, pressure, quantum),
spectral types, luminosity classes, bolometric magnitudes,
bolometric correction, calibrations, H-R diagram.
sea09.pdf .
Star radii and masses, binary stars, visual, spectroscopic,
eclipsing, detached, semi-detached, contact, lightcurves, velocity curves,
masses, L~M^4, star lifetimes.
sea10.pdf .
Star motions, celestial sphere, right ascension, declination, radial velocity,
transverse velocity, proper motion, space motion, star orbits around black
hole at galactic centre.
sea-telinst-six.pdf .
sea-stars-six.pdf .
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Keith Horne (kdh1-nospam-@st-and.ac.uk)