'2 formation' presentation slideshows

Formation of molecular hydrogen in the interstellar medium Jean Louis LEMAIRE LAMAp /LERMA

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414 views • 29 slides

Systematic Studies on Dwarf Irregular Galaxies via their SEDs

Systematic Studies on Dwarf Irregular Galaxies via their SEDs. Thanks to Dr. A. Tomita, Dr. K. Yoshikawa, and Dr. H. Hirashita. WHY study DIGs (Part I). 1930s to 1940s DIGs have been regarded as a minor group . 1970s ? DIGs are a dominant group!. WHY study DIGs (Part II).

375 views • 28 slides

Molecules and Dust

Molecules and Dust. 1 April 2003 Astronomy G9001 - Spring 2003 Prof. Mordecai-Mark Mac Low. Molecule Formation. Gas phase reactions must occur during collisions lasting < 10 -12 s Radiative association reactions: have rate coefficients of only 10 8 s -1

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Feedback Effects of the First Stars on Nearby Halos

Feedback Effects of the First Stars on Nearby Halos. Kyungjin Ahn The University of Texas at Austin The End of the Dark Ages STSCI March 13 , 200 6. Outline. Introduction Code Description Initial Setup Result Conclusion. Dark Ages and Reionization.

317 views • 22 slides

CO Excitation Workshop

CO Excitation Workshop. PDR Benchmark Progress. Starting Point PDR-1 (n=10 3 , ?=10). Starting Point PDR-2 (n=10 3 , ?=10 5 ). Starting Point PDR-3 (n=10 5.5 , ?=10). Starting Point PDR-4 ( n=10 5.5 , ?=10 5 ). Starting Point PDR-5 ( n=10 7 , ?=10 ). PDR 4, high n, high FUV.

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Star Formation Triggered By First Supernovae

Star Formation Triggered By First Supernovae. Fumitaka Nakamura (Niigata Univ.). Questions. What is the typical mass of the first stars?. Can primordial cloud cores break up into multiple fragments? Binary formation?. Can first supernovae trigger subsequent star formation?.

333 views • 16 slides

Grain Shattering and Coagulation in Interstellar Medium

Grain Shattering and Coagulation in Interstellar Medium. Hiroyuki Hirashita (ASIAA, Taiwan) Huirong Yan (Univ. of Arizona) Kazu Omukai (NAOJ). Outline. Motivation Interstellar Turbulence Effects of Coagulation on Star Formation.

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Star Formation and H 2 in Damped Ly a Clouds

Star Formation and H 2 in Damped Ly a Clouds. Hiroyuki Hirashita (University of Tsukuba, Japan). Contents:. Damped Ly a Clouds (DLAs) Physical State of Gas Getting a Realistic H 2 Distribution Summary. Damped Ly a cloud Ly a absorption. QSO. 1. Damped Ly a Clouds (DLAs).

253 views • 14 slides

Star Formation and H 2 in Damped Ly a Clouds

Star Formation and H 2 in Damped Ly a Clouds. Hiroyuki Hirashita (University of Tsukuba, Japan). Contents:. Damped Ly a Clouds (DLAs) Physical State of Gas Getting a Realistic H 2 Distribution Summary. Damped Ly a cloud Ly a absorption. QSO. 1. Damped Ly a Clouds (DLAs).

144 views • 14 slides

Review of 2005 Activities

Region 10 Section/Chapter Committee. Review of 2005 Activities. Tadaatsu Satomi R 10 Section Chapter Coordinator Prof. Of Tokyo Denki University. Support of the Establishment of New Sections and Chapters. Theoretically possible number of chapters based on total Society. 675, 41%.

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Spectroscopic and Kinetic Studies of Atmospheric Free Radicals

Spectroscopic and Kinetic Studies of Atmospheric Free Radicals. Elizabeth Foreman , YiTien Jou , Kara Kapnas , and Craig Murray Department of Chemistry, University of California, Irvine. Reaction of interest: CH 2 I+O 2. CH 2 I + I. CH 2 IOO*. CH 2 I 2 + h ?. CH 2 I + I*. CH 2 + I 2.

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CH3Br, 161109 C, C* and C** dissociation formation channels vs C+ spectra

CH3Br, 161109 C, C* and C** dissociation formation channels vs C+ spectra Explanation for enhanced C+ Rydberg state spectra in the 80600 - 80950 cm-1 region. Agust,heima,...Nov09/CH3Br-Overall +mass-041109km-141109ak.pxp Agust,www,.... Nov09/PPT-161109ak.ppt.

224 views • 6 slides

Acidic pH

Acidic pH. NrtR. DtxR. McbR. SigH. RamA. RamB. RipA. GlxR. CysR. Iron transport. Iron enzyme synthesis. NAD synthesis. Met/Cys synthesis. ATP synthesis. H 2 O 2 formation. Signal. Fe 2+ oxidation. metabolite pools metabolic flux. growth rate. Regulator. Process.

149 views • 1 slides

Very Small Dust Particles and Chemistry in Photodissociation Regions: from ISO to Spitzer

124 views • 1 slides