Part 3: Normal galaxies 3.1 Rotation curves

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Part 3: Normal galaxies 3.1 Rotation curves

Presentation transcript:

Part 3: Normal galaxies 3.1 Rotation curves PX269 Galaxies Part 3: Normal galaxies 3.1 Rotation curves

Hubble sequence

M 51 the Whirlpool Galaxy Line emission from HII regions

William Herschel Telescope

William Herschel Telescope

Measuring the rotation curves of spiral galaxies using long-slit spectroscopy

The flat rotation curves of spiral galaxies

More rotation curves

Part 3: Normal galaxies 3.2 Distances

Main sequence fitting

Cepheid variables: period-luminosity relation

Large Magellanic Cloud (LMC)

SMC LMC

SN1987A in LMC

Ring around SN1987A with HST

SN1994d in NGC4526 Hubble Space Telescope

Hubble relation

Distance ladder

Part 3: Normal galaxies 3.3 Elliptical galaxies

M87 an elliptical galaxy CFHT

NGC 2768 an elliptical galaxy

Leo I, dwarf elliptical galaxy SDSS

NGC 4267, normal elliptical galaxy SDSS

Compactness of elliptical galaxies

Gas in elliptical galaxies X-rays Optical M49