File:ALMA’s Hole in the Universe.jpg

File
File history
File usage
Metadata

Original file ‎(3,816 × 3,559 pixels, file size: 2.7 MB, MIME type: image/jpeg)

This file is from a shared repository and may be used by other projects. Please see the file description page for further information.

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	10:45, 14 February 2024		3,816 × 3,559 (2.7 MB)	commons>C messier	full size

File usage

There are no pages that use this file.

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Credit/Provider	ALMA (ESO/NAOJ/NRAO)/T. Kitayama (Toho University, Japan)/ESA/Hubble & NASA
Source	European Southern Observatory
Short title	ALMA’s hole in the Universe
Image title	The events surrounding the Big Bang were so cataclysmic that they left an indelible imprint on the fabric of the cosmos. We can detect these scars today by observing the oldest light in the Universe. As it was created nearly 14 billion years ago, this light— which exists now as weak microwave radiation and is thus named the cosmic microwave background (CMB) — has now expanded to permeate the entire cosmos, filling it with detectable photons. The CMB can be used to probe the cosmos via something known as the Sunyaev-Zel’dovich (SZ) effect, whichwas first observed over 30 years ago. We detect the CMB here on Earth when its constituent microwave photons travel to us through space. On their journey to us, they can pass through galaxy clusters that contain high-energy electrons. These electrons give the photons a tiny boost of energy. Detecting these boosted photons through our telescopes is challenging but important — they can help astronomers to understand some of the fundamental properties of the Universe, such as the location and distribution of dense galaxy clusters. This image shows the first measurements of the thermal Sunyaev-Zel’dovich effect from the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile (in blue). Astronomers combined data from ALMA’s 7- and 12-metre antennas to produce the sharpest possible image. The target was one of the most massive known galaxy clusters, RX J1347.5–1145, the centre ofwhich shows up here in the dark “hole” in the ALMA observations. The energy distribution of the CMB photons shifts and appears as a temperature decrease at the wavelength observed by ALMA, hence a dark patch is observed in this image at the location of the cluster. Links ESA/Hubble Picture of the Week
Usage terms	Creative Commons Attribution 4.0 International License
Date and time of data generation	06:00, 20 February 2017
Software used	Adobe Photoshop CC 2017 (Windows)
File change date and time	10:00, 14 February 2017
Date and time of digitizing	23:43, 30 January 2017
Date metadata was last modified	11:00, 14 February 2017
Unique ID of original document	xmp.did:962a4154-d342-e240-9322-1c955a16b585
Contact information	http://www.eso.org Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany
IIM version	4

File:ALMA’s Hole in the Universe.jpg

File history

File usage

Metadata

Navigation menu

Search