Suppose that the Hubble constant had a value of H = 150 km/s/Mpc. What would be the age of the universe? What if H had a value of 30 km/s/Mpc?
Suppose that the Hubble constant had a value of H = 150 km/s/Mpc. What would be...
a) A galaxy cluster has a recessional velocity of 44,000 km/s. Using the best estimate for Hubble's constant, find the distance to the galaxy cluster. ____________ Mpc b) Suppose the Hubble constant had a value of H= 145 km/s/Mpc. What would be the age of the universe? __________ billion years c) What if H had a value of 35 km/s/Mpc? ____________ billion years
The Hubble Parameter The constant describing the rate of this recession, called the Hubble parameterHubble parameterA measure of the rate of expansion of the universe, which is the average value of the velocity of recession divided by distance: about 70 km/s/megaparsec. Hubble parameter A measure of the rate of expansion of the universe, which is the average value of the velocity of recession divided by distance: about 70 km/s/megaparsec. , is used to determine the age and size of the...
Question 14 I need help on 500KM O PARSECS FIGURE 1 Velocity-Distance Relation among Extra-Galactic Nebulae. 13. [3pt] Approximately what value of the Hubble Constant would you infer from this graph? (answer in km/s/Mpc) Correct, computer gets: 500 14. [3pt] What is the approximate age of the universe indicated by this (very wrong) value of the Hubble Constant? (answer in years) 500KM O PARSECS FIGURE 1 Velocity-Distance Relation among Extra-Galactic Nebulae. 13. [3pt] Approximately what value of the Hubble Constant...
The hubble constant measures the expansion of the universe and is currently measured at 33 km/s/Mly. How old is the universe?
What will the Hubble parameter be 10 billion years from now for (a) a universe with H_0 = 70 km/sec/Mpc, and critical density in matter and (b) the Universe we think we live in, which has matter density of about 0.3 of critical density, and cosmological constant of 0.7 of critical density, and a Hubble constant of 70 km/sec/Mpc?
2000 Ho=68 km/s Mpc x Redshift (km/s) 1000 + * + Virgo Cluster + + + 0 10 20 Distance (Mpc) 1 The age of the universe can be estimated by calculating which corresponds to the amount of time it H would take for all the galaxies to get to the distances they are today if they had been moving away from us at the time of the Big Bang with the speeds we measure them to be moving. The...
2000 Ho=68 km/s Mpc * Redshift (km/s) 1000 * Virgo Cluster 0 + + 0 a Montenele best 20 10 Distance (Mpc) Part 5/6 Let's now calculate the number of years that is, recalling that one year equals approximately 3 x 107 seconds x 10 നമാലയിൽ രാജി years Terms The universe is expanding according to Edwin Hubble's famous equation Hod where v is the velocity of a galaxy at distance d away. Professional astronomers usually talk about Hubble's Constant in...
2000 Ho=68 km/s MPC Redshift (km/s) 1000 2 ... Virgo Cluster 0 1 - o 20 10 Distance (Mpc) Part 4/6 Now we will use the number of kilometers in a Megaparsec to simplify our calculation of the Age of the Universe. The argument is: 1 1 H. 3 x 1019 70 70 km 70 km BOC 3 x 10 km sec sec Mpe Finish this calculation to discover the number of seconds the universe has existed as indicated by...
Why are the Hubble Constant, the Cosmological Constant, and the density parameter so important to cosmology and to you? Consider expansion rate and age. What would be different about our universe if the Hubble Constant were doubled from its current value? How do these constants factor into the geometry of spacetime? How have these constants changed throughout the lifetime of the universe? Are they still changing? Cite some evidence to support your claims.
Why are the Hubble Constant, the Cosmological Constant, and the density parameter so important to cosmology and to you? Consider expansion rate and age. What would be different about our universe if the Hubble Constant were doubled from its current value? How do these constants factor into the geometry of spacetime? How have these constants changed throughout the lifetime of the universe? Are they still changing? Cite some evidence to support your claims. Please type answer, last persons handwriting was...