Why Do Galaxies have a Redshift Proportional to Distance?
2,832
Published 2024-05-17
This is the fourth of the videos in my new series of Cosmology. I'm going through Dr. Barbara Ryden's textbook "Introduction to Cosmology". If you follow along, you'll get a full upper-division undergraduate course in Cosmology. I used this textbook at William Paterson University.
This course will cover the current state of the science of Cosmology. To follow along, it'll be a good idea for you to ge to know your calculus. Here are the topics of this video:
Introductory Cosmology
Chapter 02: Fundamental Observations
Section 03: Redshift is Proportional to Distance
Some things covered:
Nearly all Galaxies Show a Redshift...
Does cosmic redshift happen by chance?
Does the redshift violate the cosmological principle?
How can we quantify the expansion of spacetime?
What are the Hubble Time and Distance?
How does measuring the rate of expansion give us the age of the universe?
What is the Steady State Model?
Why does the Big Bang win over the Steady State?
What's beyond the cosmic horizon?
NGC 1068: ned.ipac.caltech.edu/cgi-bin/nph-objsearch?objname…
2MASS J18082002−5104378: The brightest (V = 11.9) ultra metal-poor star : www.aanda.org/articles/aa/full_html/2016/01/aa2745…
The First Stars: A Low-mass Formation Mode: ui.adsabs.harvard.edu/abs/2014ApJ...785...73S/abst…
GOODS: www.stsci.edu/science/goods/
Textbook: www.goodreads.com/book/show/27287494-introduction-…
Join this channel to get access to perks:
youtube.com/channel/UCdnMLnE83DzHgrVJxOhZdLw/join
All Comments (13)
-
Hi. This is an uniroinic, backhanded compliment explaining how pleasant it is to sleep through this lecture.
-
The best teachers are those who have a genuine passion for the subject, and I haven't seen cosmology so eloquently discussed in such an easy to understand way since Carl Sagan.
-
Great remake. Lemaitre was a badass
-
I REALLY enjoy getting into the actual formulas and do some maths! Such a pleasure to see it, as opposed to all the "popular" channels that seem to be scared to show any numbers at all
-
I love these videos from Professor Kendal, I feel like I've unlocked so much from the universe from his lessons!
-
Vesto Slipher sounds like a bad ass Jedi Knight
-
Redshift is also proportional to age. The younger universe was expanding, but has it slowed down?
-
I know what’s at the edge!!
-
Halton Arp
-
don't red dwarfs live trillions of years Jason???
-
1100 views, and only 59 likes? Smash the like button for this guy!
-
Excellent lesson. Keep them coming brother!
