Highlights of Cosmology. Physics 114. Spring 2004 S. Manly ... 1 Mpc= 1 Megaparsec = 3x1022 m. 1 light year = 9x1015 m. Doppler shift for light waves ...
... velocity, r is its distance away from Earth, and H is a ... km/sec, while another galaxy 100 megaparsecs away will be receding at 100 times this speed. ...
Edwin Hubble. Distance vs. velocity (away from us) for a bunch of galaxies. NASA StarChild ... Hubble's Law (modern data) Freedman et al. (2001), The ...
Measure redshift of galaxy: (?-?0)/?0. Compute radial velocity: v = c (?-?0)/?0 ... of the interstellar gas in our Galaxy is atomic hydrogen. density 10 atoms ...
Progetto Cielo! La costruzione della Scala delle Distanze Il primo gradino: fino a 500 parsec Per costruire la scala delle distanze utilizziamo diversi metodi di ...
Large Magellanic Cloud (satellite to Milky Way) . Distance=50 kpc. Pic:http://antwrp.gsfc.nasa.gov/apod/ap010804.html ... These are the closest galaxies ...
In 1929, Edwin Hubble looked at the relation between radial velocity and distance for galaxies. ... H0 = the 'Hubble constant' (same for all galaxies in all ...
Times New Roman Times Arial Blank Presentation Galaxies The Structure of our Galaxy Galactic Rotation The Realm of Galaxies The Expansion of the Universe Galaxy ...
TRA STELLE e GALASSIE 21 stelle pi brillanti Gli astri pi luminosi del cielo: Il sole con magnitudine -26,8 La luna piena con magnitudine -12,7 Venere con ...
Andromeda M31 Geology 360/Physics ... That means that every star returns to the same position in the sky at that same interval ... and blue-white Rigel below it ...
Title: Integrative Studies 410 Our Place in the Universe Author: DRobertson Last modified by: Windows User Created Date: 3/27/2002 9:47:52 PM Document presentation format
Please pick up your corrected problem set and midterm. Problem Set #4: median score = 85 ... Monday, November 3 Next planetarium show: Thu, Nov 6, 6 pm. History ...
... are in the southern sky in the constellations ... Star Count in a Galaxy One gets an estimate of the number of stars in a galaxy ... knowing the size of the star ...
Galaxy Mergers and Cannibalism. Galaxy Mergers. Stars pass right by one another (do not collide! ... Galactic Cannibalism. Forms the dominant cluster member ...
Astronomy 1100 Introduction to Astrophysics Goals: to develop a knowledge of some of the basic tools used in the study of astronomy and astrophysics, and to gain ...
Title: The Milky Way Author: Markus Boettcher Last modified by: Jim Roberts Created Date: 2/23/2003 4:28:17 AM Document presentation format: On-screen Show
Initial pleasantries, who I am, who you are. This should be the most interesting course you take in college ... All the above meaningless gibberish now, but ...
... loosely wound arms ... Cepheid Distance Measurement Distance Measurement Using Type Ia Supernovae The Most Distant Galaxies Distance Measurements to ...
... distances (d) (need velocity of a galaxy and the value of Ho) What is ... Could a single model explain all of the features observed in these active galaxies? ...
Un derivaci n m s exacta nos da: Donde Rin define el borde interno del disco de acreci n. Para r Rin se puede simplificar, expresando la temperatura para r en ...
Rigel. T=20,000 K. Classification of Stars Through Spectroscopy ... Rigel. Vega, Sirius. Sun. Betelgeuse. Further subdivision: BO - B9, GO - G9, etc. GO hotter ...
The Sloan Digital Sky Survey Alex Szalay Department of Physics and Astronomy The Johns Hopkins University The Sloan Digital Sky Survey Scientific Motivation Cosmology ...
... UGC 3214 NGC 6070 The First Quasars Methane/T Dwarf Discovery of several new objects by SDSS & 2MASS Detection of Gravitational Lensing The first ... quasar ...
... brief period of highly accelerated expansion, early in the history of the universe. ... The energy released by freezing water warms the leaves & fruit. ...
Work backwards and calculate the time since the Big Bang: if a galaxy were 1 Mpc ... Copy this data and paste it immediately below the 'Nearby' data. ...
Redshift surveys are ways of mapping the distribution of galaxies around us ... 4 hours 30 to 40 degrees) show the location of the Pisces-Perseus Supercluster ...
... (frieman@oddjob.uchicago.edu) Tel: 702-7971 (Tu/Th); 630-840-2226 (MWF) ... 'If I am at the extremity of the heaven of stars, can I not. stretch outward my hand? ...
... Bulge and Halo. Disk that slices through the Halo and Bulge ... Looks like bulge and halo of spiral. Very little star formation. M 87. Irregular Galaxies ...
The average density of the universe is 9 10-27 kg/m3. ... Dark energy: apparently uniform density, with no lumps. ... This can cause nasty paradoxes. ...
25-3 What Seyfert galaxies and radio galaxies are and how they compare to quasars ... ejected from the nucleus of a radio galaxy along two oppositely directed beams. ...
The Cosmological Distance Ladder It's not perfect, but it works! Cepheid variable stars were used by Shapley to determine the distances to globular clusters in our ...
Resemble two pizza slices joined at the apex and provide 3-d view. ... Recent studies show, that the initial 'facts' of the biggest structures in our ...
This is a superimposed photograph of the sky on a number of successive nights. ... A Whole-Sky View of the Milky Way ... The sky as seen in Microwaves. This is ...
Galaxies 0 Please press 1 to test your transmitter. The Furthest Galaxies The most distant galaxies visible by HST are seen at a time when the Universe was only ...
Author: Alex Szalay Last modified by: Alex Szalay Created Date: 12/16/1998 8:16:24 PM Document presentation format: On-screen Show Company: The Johns Hopkins University
Lawrence Berkeley National Laboratory & University of California, Berkeley ... Used ANITA antennas to measure attenuation. length and reflection from ice/sea ...
w(z) =w0 wa(1 a) geometric. geometric growth. DETF Figure of. Merit: inverse. area of ellipse ... Further detail of these forecasts is contained in the Dark ...
Betelgeuse Rigel 244 pc 152 pc d -6.8 -5.5 MV 0.14 0.41 mV Rigel Betelgeuse Back to our example of Betelgeuse and Rigel: Difference in absolute magnitudes: ...
How did astronomers discover that they are extraordinarily distant and luminous? ... be very luminous, typically about 1000 times brighter than an ordinary galaxy ...