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The Cosmic Distance Ladder

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The Cosmic Distance Ladder Distance Measurements via Parallax Hipparcos Satellite Before Launch GAIA A Planned Future Mission Estimating the Distance to a Stop ... – PowerPoint PPT presentation

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Title: The Cosmic Distance Ladder


1
The Cosmic Distance Ladder
2
Distance Measurements via Parallax
3
Hipparcos Satellite Before Launch
4
GAIA A Planned Future Mission
5
Estimating the Distance to a Stop Light
6
Cepheid Variable Stars
7
The Period-Luminosity Relation for Cepheid
Variable Stars
Henrietta Leavitt
8
HST Observations of Cepheid Variable Stars in
M100 at 20 Mpc
HST key project measured Cepheid distances to
25 galaxies within 25 Mpc.
9
Distances from Type 1a Supernovae
10
Mass Discovery of Type 1a Supernovae
11
Light Curves of Type 1a Supernovae
Peak luminosity and subsequent fading are related.
12
SNAP A Planned Mission toMeasure Distances to
Type 1a Supernovae
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