100+ Velocity clouds PowerPoint (PPT) Presentations, Velocity clouds PPTs

Velocity clouds - PowerPoint PPT Presentation

Are High-Velocity Clouds a Common Feature of Star Forming Galaxies?

Are High-Velocity Clouds a Common Feature of Star Forming Galaxies?. Wakker et al. (2000). HVCs as Local Group Building Blocks?. Grebel 1998. M HI ~ 4.5 D 2 (kpc) Size ~ 0.4 deg 2 N HI ~ 10 19 cm -2. At 5 kpc M HI = 115 M o d HI = 60 pc n HI = 5 x 10 -2 cm -3.

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366 views • 26 slides

Active Galactic Nuclei

Active Galactic Nuclei. Very small angular size: point like High luminosity: compared to host galaxies Broad-band continuum emission: radio to TeV Strong emission lines: unlike stars or galaxies Broad lines ( ??/? ~ 0.05) Narrow lines ( ??/? ~ 0.002) Variability: some are highly variable

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304 views • 11 slides

The GALFA-HI Survey starting with TOGS

Mapping Hydrogen in the Galaxy, Galactic Halo and Local Group with the Galactic Arecibo L-Band Feed Array (GALFA).

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95 views • 1 slides

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Velocity clouds - PowerPoint PPT Presentation

Are High-Velocity Clouds a Common Feature of Star Forming Galaxies?

Active Galactic Nuclei

The GALFA-HI Survey starting with TOGS