21cm PowerPoint PPT Presentations

Matias Zaldarriaga, Matt McQuinn, Oliver Zahn, Tom Faulkner, Ted Bunn, Serkan Cabi. Constraining cosmological and gravitational parameters with upcoming ...

Epoch of Reionization 21cm simulations

Reionization: the movie. 8Mpc comoving. Constraint I: Gunn-Peterson Effect. Fan et al 2006 ... Twilight zone': study of first light limited to near-IR to radio l's ...

CMB great way to measure perturbations down to silk damping scale ... to gas rest frame self-absorption and reionization re-scattering terms ...

Huge amount of information in dark age perturbation spectrum ... Dark ages very challenging to observe (e.g. far side of the moon) ...

Hierachical structure formation, formation of first objects, and reionization ... Ewen & Purcell; Muller & Oort (1951): detection in the Milky Way, discovery of ...

HI 21cm Tomography of IGM: freq ~ 100 to 200 MHz. z=12. 9. 7.6 ... Advantages: 3D, optically thin, dominant baryon component. Tomography requires SKA ...

... the first. luminous structures. Dark Ages. Twilight Zone ... Reionization: the movie. 8Mpc comoving. Barkana and Loeb 2001. Constraint I: Gunn-Peterson Effect ...

From the analysis quasar absorption spectra: Reionization finished at z ~ 6. ... Perhaps the most promising prospects of studying reionization at various stages ...

OPTICAL IMAGE WITH HI 21cm CONTOURS ... IF THE HI 21cm ABSORBER IS OUTFLOWING, IT STILL LACKS THE ESCAPE SPEED. ARECIBO HI PROFILE OF NGC 3067: HI 21cm ABSORBER ...

VOLUME. How many centimetre cubes? 18cm . 15cm . 21cm . 25cm ...

Europe. China. Strawman. Level 1 Science. Notes: Level-1 science may still be missing. ... Temperatures: Spin, CMB, Kinetic and the 21cm signal. Initially T_S= T_CMB ...

Challenge: Low frequency foreground hot, confused sky. HI 21cm signal ~ 10 mK ... Focus: Reionization (power spec,CSS,abs) Very wide field: single dipole screen ...

There must be a signal at least as large as 0.05 eV. Testing Inflation. Flatness. First Peak Position. Coherence. Peaks & Troughs. Non-Gaussianity. 21cm. Near ...

f(HI) 0.001 ... Neutral IGM HI 21cm emission and absorption ... Probability arguments suggest: f(HI) 0.1 at z=6.4 much better limit than GP ...

PAPER (Don Backer) ... Start in 2004 (Don Backer et al.) 100 to 200 MHz. Individual, dual polarization dipoles ... D. Backer. Harvard-Smithsonian: 21cm ...

Distance to pulsar is estimated from the structure of 21cm ... csc|b| suggests that the radiation originates in a layer centered on the plane : fig 3.20 ...

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The Milky Way. Primarily the Milky Way galaxy is made of dust, gas and stars ... significant fraction of the milky way we can map out the spiral structure of our ...

... R. Braun, R. Sault, S. Wyithe, J.Bolton, P. Lah, G. Meurer, I. Wong, E. Taylor, B. Schmidt ... Evolution of the HI content of the Universe provides a ...

The first Sources of Light

What is the effect of hand dominance on reaction time? purpose Hypothesis The dominant hand will be quicker than the non-dominant. Materials Ruler Calculator 28 ...

V. Lebouteiller Moriond 2005. Fate of the metals produced in stars ? ... CLOUDY photoionization code. Estimate column densities in the HII gas ...

Power spectrum of the dark ages. Antony Lewis. Institute of Astronomy, Cambridge ... Huge amount of information in dark age perturbation spectrum ...

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Title: PowerPoint Presentation Author: fbriggs Last modified by: fbriggs Created Date: 11/4/2002 12:53:31 AM Document presentation format: On-screen Show

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?T = 23 mK, ~0.3 mJy. Angular scale 5' T 20', freq res 500 khz ... Biggest collecting area in this band. Half in central 1km core, rest in 50 km Y. ...

Reviewed by EMT/ISAC and revised 2003. China KARST. Canada LAR. US Large-N Small-D ... Full Xcorr inner 2300 ants (35 km), outer stations' of 13 ants ...

Fluid Dynamic Analysis and Comparison of Windsurfing Fins ... Fin Changes Sideways Wind to Forward Movement. Fin Design. Many Companies ...

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Title: Slide 1 Last modified by: louis strolger Document presentation format: Custom Other titles: Times New Roman StarSymbol Default Design PowerPoint Presentation ...

Rot. Transitions of heteronuclear mol.s ... Lifetimes for rot. Excited levels of CO are rel. short. Smaller col. Den. ... Dispersion & rotation measures ...

... sky ... time, frequency, position on sky, position of antenna, ionosphere, ... O(N3): not tractable for all sky, workable for small fields at low ...

Lunatic fringe: probing the dark ages from the dark side of the Moon

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zenith angle (maximize response at q=0 if h=l/4 ) Dipole. I e. o ... Zenith 5 offset. Radio sky in 408 MHz continuum (Haslam et al) north. south. west. east ...

Local ioniz. ... Cross correlation in channels, or 3D power spectrum ... Enrichment of heavy elements, dust starts early (z 8): good news for radio astronomy ...

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Obit imaging of IC 2233 & Mk 86: intermediate steps. IC 2233 & Mk 86: intermediate steps ... and algorithmic procedures in collaboration with Bill Cotton using Obit. ...

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... Billions of galaxies, HI mass function evolution poorly ... Jy- mJy (up to 1016 M?? of HI) Angular scale 5' T 30', freq res 500 khz. Challenging theory ...

... find the area of the large circle. Second, find the area of the ... How do you find the area of a circle given the diameter? d=20cm. If d=20cm, first find r=d 2 ...

Tot. 0. 1/3300. looks like HI is an endangered species !!! Where are the missing baryons ? ... but, only a tiny fraction of total baryons are neutral ...

Probing the High-z Universe with Galaxy Counts from Ultra Deep Surveys and the Cosmic Near Infrared Background Eiichiro Komatsu (Univ. of Texas, Austin)

CONNECTING GALAXIES TO THE COSMIC WEB. WITH HUBBLE AND EVLA. COLORADO GROUP: JOHN STOCKE, MIKE SHULL, ... `CLOSE-UP'' OF A LYMAN LIMIT SYSTEM: 3C232/NGC 3067 ...

Radio astronomical probes of Cosmic Reionization and the 1st luminous objects

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