'Rr lyrae stars' presentation slideshows

868 views • 75 slides

Chapter 14 The Milky Way Galaxy

Chapter 14 The Milky Way Galaxy. Chapter 14 The Milky Way Galaxy. Units of Chapter 14. Our Parent Galaxy Measuring the Milky Way Galactic Structure The Formation of the Milky Way Galactic Spiral Arms The Mass of the Milky Way Galaxy The Galactic Center. The Milky Way.

880 views • 58 slides

Chapter 14 The Milky Way Galaxy

Chapter 14 The Milky Way Galaxy. Units of Chapter 14. Our Parent Galaxy Measuring the Milky Way Galactic Structure The Formation of the Milky Way Galactic Spiral Arms The Mass of the Milky Way Galaxy The Galactic Center Summary of Chapter 14. 14.1 Our Parent Galaxy.

588 views • 41 slides

Lecture 2

Lecture 2. The distance scale. Apparent magnitudes. The magnitude system expresses fluxes in a given waveband X, on a relative, logarithmic scale: Note the negative sign means brighter objects have lower magnitudes

469 views • 32 slides

Galactic & Extragalactic Astrophysics - ASTC22

Galactic & Extragalactic Astrophysics - ASTC22. Lecture 1 History of the Milky Way Galileo, Hershel, Kapteyn and others The idea of spiral nebulae as island universes (Kant) The Great Debate of 1920: Curtis vs. Shapley. Milky Way (= the Galaxy). Discovery of the Milky Way.

298 views • 18 slides

Variable Stars

780 views • 14 slides

RR Lyrae Stars for SIM

RR Lyrae Stars for SIM. I. Making the B-List II. Obtaining Apparent Mags: (a) Field and (b) Cluster. B-List. 5-10 more RRc All RRab with: [Fe/H] > -1.0 [Fe/H] < -2.0 (~8 stars) More at disk/halo: [Fe/H] ~ -1 (~5 stars) More at OoI/II: [Fe/H] > -1.5 (20+ stars?)

229 views • 7 slides