HII Regions & Planetary Nebulae. Isolated regions where H is ionized. ... k = Boltzman's Constant. T in K. ? in Hz. Radio Approximation: 11/21/09. 13 ...
one method of transferring human civilization to the stars is to send robotic ... permits long journeys to be made with relatively little passage of traveler time' ...
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Problems with manufacturing of antimatter and containment of antimatter. Laser Sail ... Antimatter annihilation is most efficient. If 99% light speed is desired ...
Title: Scattering (and the blue sky) Author: user Last modified by: Gibor Basri Created Date: 4/15/2002 7:36:33 PM Document presentation format: On-screen Show
Experiment-ISM connections. Theoretical and computational methods connecting ... Molecular hydrogen formation on dust grain analogues in ISM conditions ...
Latest results for the fast scintillator, PKS 1257-326. Brief overview of last week's workshop ... 1984: 'flicker' - timescales 2-10 days at 2.7 GHz (Heeschen) ...
The Interstellar Medium. Components of the ISM. Gas (hydrogen and ... They were from S. and N. California (Mt. Wilson & Lick). They also wrote papers about it. ...
Spectra taken in Taurus molecular cloud in a region with AV = 13.3. Vibrational Transitions of Diatomic Molecules. Vibrational Transitions of Diatomic Molecules ...
... not resemble Gaussian distributions: they had a 'cusp' and a 'halo' ... Excess flux at long baseline: sharp 'cusp' Excess flux at short baseline: big 'halo' ...
The solar system is our template for understanding interplanetary material ... About 98% of diffuse material in ... Expanding solar corona becomes solar wind ...
If the cloud's mass is greater than the Jeans mass MJ it will collapse ... We can also write in terms of the Jeans length. RJ = ((15kT)/(4pGmmHr))1/2 ...
Two broad-band branches for strong and weak scattering of the background radiation. One narrow-band branch strong diffractive scintillation (for extremely small ...
The Trapezium cluster of stars illuminates the Orion Nebula. These are ... cloud (like Orion) Molecular Hydrogen. Traced by the radio emission of CO which is ...
Extra-terrestrial Civilizations: Interstellar Radio Communications * * * * * * Other search techniques Optical SETI assumes the use of lasers in a pulsed manner to ...
Sgr A* 30th Fest -- 2004 March. 1. Interstellar Scattering of Sgr A* D. C. Backer ... An Early View on Scatter Broadening. Backer 1978 ApJ, 222, L9. b. zb/Z ...
Mar 10: Oral presentation of final project proposals to class. ... ixx - include the following at line xx ... For next class read for discussion: Ferri re, 2002, ...
Emission red colour due to Hydrogen emission (HII regions) lines made of hot hydrogen gas ... The ecliptic. All planets orbit Sun in the same direction. Also: ...
A 'Very Small Grain' component of transiently heated carbonaceous particles was ... Vibronic structure of electronic transitions in the visible for PAHs in our ...
Title: Interstellar extinction and polarization at high galactic latitudes Author: Tuorlan Observatorio Last modified by: mez Created Date: 11/21/2005 12:19:45 PM
Dark clouds, reflection nebulae and Bok globules. Dust was first found in form of large dark clouds (e.g. Coalsack, Horsehead etc) which are silhouetted ...
heating-cooling balance and the phases of the ISM. turbulence ... magnetic fields, polarization and Faraday tomography. John M. Dickey. University of Tasmania ...
... evaluate the speed of the scattering screen and an indication of the anisotropy. ... Size of the scattering component in the sources and anisotropy of the screen ...
A New Catalog of. Diffuse Interstellar Bands. Lewis M. Hobbs Yerkes, U. ... Per, Leo (Mary Lea Heger, Lick, 1919) Broad ('diffuse') 'Stationary' (interstellar) ...
magnetic fields, polarization and Faraday tomography. John M. Dickey. University of Tasmania ... Faraday Tomography: We use the fact that Faraday Rotation has the form ...
Region in the Constellation Orion named the Orion Nebula which is the closest ... More Orion. Individual stars forming in density fingers. Chapter 11: The ...
Below, Tarantula nebula, 30 Doradus. in the Large Magellanic Cloud. Right: ? Carinae nebula, in ... 8. 30 Doradus, the Tarantula. nebula, a giant. HII nebula ...
The Crab nebula, M1, a supernova. remnant in Taurus. ASTR112 The Galaxy. Lecture 11 ... is approximately along spiral arms. ASTR112 The Galaxy. Lecture 11 ...
Planetary Nebulae as a Testground of Interstellar Molecular Chemistry. Tatsuhiko Hasegawa ... Hasegawa & Kwok. Molecular Abundances and Densities from (sub-)mm ...
heating-cooling balance and the phases of the ISM ... Brogan et al. 2006 Ap. J. 130, 698. 3C138 Continuum. 21-cm absorption. Optical Absorption Lines ...
The heating rate due to photo-electron ejection from grains is significant in ... Swap the x and y axes. log n. log T. 2. 3. 4. 5. log n0. L G. L G. G L ...
Star Formation in a Dynamic Interstellar Medium. Workshop ... 10:00 Phil Myers (CfA) What are the properties of the observed environment ... Devine 1997 ...
Near-Infrared Spectroscopy of Interstellar and Planetary Ice ... Infrared Beam from Spectrometer. Sample Chamber. NH3 CO Photolysis Products. A Closer Look...
NASA, ESA, N. Smith (University of California, Berkeley) and the Hubble Heritage ... quasar absorption lines. intergalactic radiation field; escape of ionizing photons ...
Polarized Thermal Dust Emission in the Interstellar Medium ... Giles Novak. Megan Krejny. Caltech. Darren Dowell. Hiroko Shinnaga. Harvard / CfA. Hua-bai Li ...
Comparing the Ortho-to-Para Ratios of H2 and H3+ in Diffuse Interstellar Clouds N. Indriolo1, T. Oka2, T. R. Geballe3, K. H. Hinkle4, G. A. Blake5, & B. J ...
Lecture 23- Interstellar Chemistry and Life After the Main Sequence ... Nobody doubts there are more complicated species lurking out there (unidentified lines) ...
THE MILKY WAY GALAXY SHOWING REGIONS OF DARK AND LIGHT ... AND GREATER MAGNIFICATION. A 'NURSERY' OF STAR FORMATION. LOOKS LIKE A DANCING STICK MAN. ...