Showing posts with label astronomy. Show all posts
Showing posts with label astronomy. Show all posts

Sunday, August 27, 2017

Cosmography of the Local Universe

A dynamic mapping of the "local universe" - out to 300 million light years

Cosmography of the Local Universe
Hélène M. Courtois, The Astronomical Journal, Volume 146, Number 3, 2013 August 14


Cosmography of the Local Universe (HD)
Published on Jun 18, 2013
Behold a 3D map of of the universe, showing all galaxies out to 300 million light years

A film by Hélène Courtois, Daniel Pomarède, R. Brent Tully, Yehuda Hoffman, and Denis Courtois. All rights reserved.
Brent Tully, a cosmologist at the University of Hawaii's Institute for Astronomy has mapped the universe in detail out to a distance of about 100 million light years. To put that in more human terms: Columbus's maps of the New World described a land 3,000 miles from home, but Tully's map extends 6,000,000,000,000,000,000 miles out. No wonder he is often referred to as a cosmic cartographer. By filling in the details, Tully has made it possible to discern the true structure of the universe: clusters of galaxies arranged into enormous filaments, bound together by invisible strands of dark matter, and tremendous lonely voids where galaxies are sparse.

Thursday, April 23, 2015

Cosmography of the Local Universe

The void



Hannah Devlin, Astronomers discover largest known structure in the universe is ... a big hole, The Guardian, 20 April 2015. http://j.mp/1HWw4eK

István Szapudi, Detection of a supervoid aligned with the cold spot of the cosmic microwave background, Monthly Notices of the Royal Astronomical Society, 450.1, 19 April 2015, pg 288-294


The video

Cosmography of the Local Universe
a film by 
Hélène Courtois, Daniel Pomarède, R. Brent Tully, Yehuda Hoffman, and Denis Courtois. 

Cosmography of the Local Universe
Helene M. Courtois, Daniel Pomarede, R. Brent Tully, Yehuda Hoffman, Denis Courtois
(Submitted on 1 Jun 2013 (v1), last revised 13 Jun 2013 (this version, v4))


The MIT course 

The Early Universe
Instructor(s) Prof. Alan Guth
MIT Course Number 8.286