'Rotation curve' presentation slideshows

ATA 2010 DYNAMICS of the MILKY WAY

ATA 2010 DYNAMICS of the MILKY WAY. Ken Freeman, ANU & UWA. Introduction. Galaxies are collections of stars, gas, dust and dark matter Masses are between about 10 6 and 10 12 M ? . The Milky Way is a disk galaxy and is near the upper end of the mass range.

1.32k views • 112 slides

An argument that the dark matter is axions

An argument that the dark matter is axions. Pierre Sikivie Center for Particle Astrophysics Fermilab, March 17, 2014 Collaborators: Ozgur Erken, Heywood Tam, Qiaoli Yang Nilanjan Banik. Cold dark matter axions thermalize and form a

908 views • 79 slides

An argument that the dark matter is axions

An argument that the dark matter is axions. Pierre Sikivie Miami 2013 Conference Fort Lauderdale, December 16, 2013 Collaborators: Ozgur Erken, Heywood Tam, Qiaoli Yang. Cold dark matter axions thermalize and form a Bose-Einstein condensate. Outline.

680 views • 58 slides

The Milky Way

The Milky Way. Our home galaxy, full of stars, gas and mysterious dark matter We decompose it into a disk and a halo and a few other parts. Almost a View of our Milky Way. NGC 4526, a spiral galaxy like the MW but about 30 Mpc away: it has a similar size, luminosity and structure.

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Dark Matter Axions

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The Case for Axion Dark Matter

The Case for Axion Dark Matter. Pierre Sikivie `The Dark Matter Connection: Theory and Experiment' Firenze, May 21, 2010. Outline. The inner caustics of galactic halos Axions form a Bose-Einstein condensate Tidal torque theory with ordinary CDM and with axion BEC

567 views • 45 slides

Spiral Galaxies: Disk Kinematics

Spiral Galaxies: Disk Kinematics. As in all spiral galaxies, everything in our Galaxy orbits around the Galactic Center (GC) Differential rotation - material closer to the center travels on faster orbits (takes less time to make one full orbit )

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The Orion Nebula (M42)

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The Milky Way - Chapter 23

The Milky Way - Chapter 23. Best seen around August, running NE to SW. The Milky Way Galaxy. A galaxy: huge collection of stars (up to ? 10 12 ), interstellar matter (gas & dust ), and dark matter, held together by gravity. But there is no accepted formal definition of a galaxy!

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Preparatory activities of H 2 O maser astrometry towards LMC and SMC

Preparatory activities of H 2 O maser astrometry towards LMC and SMC. Hiroshi Imai (Dept. Physics and Astronomy, Kagoshima University) VSOP-2 KSP Maser Working Group. VSOP-2 KSP-JP Maser Proposal: High resolution astrometry of H 2 O masers towards LMC and SMC version on 2009 September 4.

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Clicker Question:

Clicker Question:. What is the ultimate origin of the elements heavier than helium that make up your body? They were present when the Universe was created. They were created in low mass (< 8 solar mass) stars They were created in high mass (> 8 solar mass) stars

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Artistic concept of a HMXB: a collapsed star (NS or BH) Accretes mass from a massive O or B star

Artistic concept of a HMXB: a collapsed star (NS or BH) Accretes mass from a massive O or B star. Binary mass function. Radial velocity curve of HD 226868, the O9.7Iab companion star in the HMBX Cyg X-1 , folded on the 5.6-day orbital period. km/s. Phase (1 = 5.6 days).

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Dark Matter in Dwarf Galaxies

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The Milky Way

341 views • 24 slides

Title

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8. Galactic rotation 8.3 Rotation from HI and CO clouds

8. Galactic rotation 8.3 Rotation from HI and CO clouds 8.4 Best rotation curve from combined data 9. Mass model of the Galaxy. Galactic rotation from HI and CO clouds. For disk objects in a differentially rotating galaxy, The radial velocity, V R is a

520 views • 20 slides

Dark Matters in Torino - Villa Gualino, February 21, 2000

Dark Matters in Torino - Villa Gualino, February 21, 2000. Baryonic Dark Matter: Search for Ancient Cool White Dwarfs in the Galactic Halo Daniela Carollo, Alessandro Spagna (Osservatorio Astronomico di Torino) Thanks to the contributions of: - M. Lattanzi (OATo) - R. Smart (OATo)

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Astronomy 100

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East Asian VLBI activities

East Asian VLBI activities. VSOP/VSOP2. KVN. CVN. VERA & JVN. Parallax measurements of H2O maser source beyond 5 kpc with VERA. Mizusawa-VERA observatory, NAOJ Mareki Honma & VERA project member. Contents. Based on astrometry of S269 (at ~5kpc), we present the results on Parallax

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Solar System Rotation Curves

238 views • 12 slides