'Column density' presentation slideshows

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1.09k views • 82 slides

Molecules traced in absorption

565 views • 46 slides

Mopra Induction Weekend May 2005

Determination of physical properties from molecular lines Kate Brooks Australia Telescope National Facility. Mopra Induction Weekend May 2005. Interstellar Molecules. Ehrenfreund & Charnley 2000, ARA&A, 38, 427.

556 views • 44 slides

Numerical simulations of Quasar Absorbers

Tom Theuns Institute for Computational Cosmology, Durham, UK Department of Physics, Antwerp, Belgium. Numerical simulations of Quasar Absorbers. IAU 199, Shangai 2005. Contents: 1. Lyman- a forest in a CDM universe 2. Numerical simulations a. basics

567 views • 42 slides

Fluctuations in ISM Thermal Pressures Measured from C I Observations

443 views • 38 slides

Molecules traced in absorption

498 views • 35 slides

From diffuse to dense regions

420 views • 32 slides

The Properties of DLAs at z ~ 3

The Properties of DLAs at z ~ 3. Luo Zhijian Key Lab for Astrophysics, Shanghai Normal University Shu Chenggang ( ShNU ) Lu Y.( UMASS ) Mo H. J. ( UMASS ) Huang J. S. ( CfA ). OUTLINE. 1. What are DLAs? 2. Previous DLA Studies 3. Modeling 4. Predictions 5. Summary. 1.What are DLAs.

419 views • 30 slides

Moons of Saturn

426 views • 30 slides

????????????? ??

???????? 2012/9/6 @ ?????. ????????????? ??. ???? ( ????? ). ?? ???????. ???? ???? ???????????????? ??? ?????? ???????? ??????????????? ?????????????? ?? ????????????. Gas density: 2 concepts. ISM has a fine structure. sub-cloud scale structure

395 views • 29 slides

FUSE Observations of the Loop I / Local Bubble Interaction Region

364 views • 24 slides

Projet O ptical S cintillation by E xtraterrestrial R efractors

292 views • 21 slides

DLAs in simulated galaxies and dust obscuration

DLAs in simulated galaxies and dust obscuration. ? = 1.0. David Churches, Mike Edmunds, Alistair Nelson - Physics & Astronomy, Cardiff University. ? = 0.5. ? = 0.1. ? = 0.01. (MNRAS 327, 610, 2001 & 347, 1234, 2004). Objectives.

253 views • 16 slides

Prometheus Lava-Frost Interaction

Prometheus Lava-Frost Interaction. Robert R. Howell University of Wyoming. Overview. SO 2 gas generation rates HST SO 2 column density (Jessup et al. 2004) plus numerical plume dynamics (Zhang et al. 2004) plume dynamics Confirms updated ~10 4 kg/s from Ingersoll type models

262 views • 14 slides

What Shapes the Structure of MCs: Turbulence of Gravity?

What Shapes the Structure of MCs: Turbulence of Gravity?. Alexei Krtisuk Laboratory for Computational Astrophysics University of California, San Diego. Collaborators : David Collins (LANL, Los Alamos) Mike Norman (SDSC, La Jolla)

270 views • 14 slides

Local Hot Bubble Science Does it Exist?

Local Hot Bubble Science Does it Exist?. Steve Snowden NASA/GSFC. What makes up the soft X-ray background?. From Near to Far: Geocoronal emission from scattered solar X-rays and solar wind charge exchange, and auroral X-rays Heliospheric solar wind charge exchange (SWCX) emission

279 views • 13 slides

Outline

255 views • 12 slides

The Central Molecular Zone

(1,1) ground. J. O rtho I = 3/2. (2,2) densitometer. P ara I = 1/2. (1,1) ground level. (3,3) metastable. Metastable. (3,3) thermometer. 8 hrs. (3,3). 16 hrs. ?. (2,2). Unstable. 361 K. (2,2) unstable. 27.2 days. Critical Density 200 cm -3. Ground. (2,2) densitometer.

162 views • 1 slides

Nucleosynthetic signatures of early stars in IGM and DLA absorption lines

Nucleosynthetic signatures of early stars in IGM and DLA absorption lines Bryan E. Penprase 1 , Wallace L. W. Sargent 2 , Jason X. Prochaska 3 , and C atherine Wilka 1. Abstract

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113 views • 1 slides