Composite ALMA and Optical Image of High Redshift Galaxies

Nrao_gallery_nrao17cb17b_1024

nrao_Gallery_nrao17cb17b  

Credit: ALMA (ESO/NAOJ/NRAO), M. Neeleman & J. Xavier Prochaska; Keck Observatory

Composite ALMA and optical image of a young Milky Way-like galaxy 12 billion light-years away and a background quasar 12.5 billion light-years away. Light from the quasar passed through the galaxy's gas on its way to Earth, revealing the presence of the galaxy to astronomers. New ALMA observations of the galaxy's ionized carbon (green) and dust continuum (blue) emission show that the dusty, star-forming disk of the galaxy is vastly offset from the gas detected by quasar absorption at optical wavelengths (red). This indicates that a massive halo of gas surrounds the galaxy. The optical data are from the Keck I Telescope at the W.M. Keck Observatory.

Provider: National Radio Astronomy Observatory

Image Source: /image/nrao/Gallery_nrao17cb17b

Curator: NRAO/AUI/NSF, Charlottesville, Virginia, USA

Image Use Policy: Creative Commons Attribution 3.0 Unported license (http://creativecommons.org/licenses/by/3.0/)

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Image Details

Image Type
Collage
Object Name
ALMA J081740.86+135138.2 ALMA J120110.26+211756.2
Subject - Distant Universe
Galaxy > Type > Spiral
Galaxy > Activity > AGN > Quasar

Distance

Universescale3
12,000,000,000 light years
Nrao_gallery_nrao17cb17b_1280
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ID
Gallery_nrao17cb17b
Subject Category
D.5.1.1   D.5.3.2.1  
Subject Name
ALMA J081740.86+135138.2, ALMA J120110.26+211756.2
Credits
ALMA (ESO/NAOJ/NRAO), M. Neeleman & J. Xavier Prochaska; Keck Observatory
Release Date
Lightyears
12E+9
Redshift
12.5E+9
Reference Url
/image/nrao/Gallery_nrao17cb17b
Type
Collage
Image Quality
Distance Notes
12E+9 for Milky Way-like; 12.5E+9 for quasar
Facility
Instrument
Color Assignment
Band
Bandpass
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
Equinox
Reference Value
Reference Dimension
Reference Pixel
Scale
Rotation
Coordinate System Projection:
Quality
FITS Header
Notes
Creator (Curator)
NRAO/AUI/NSF
URL
https://public.nrao.edu
Name
NRAO/AUI/NSF
Email
outreach@nrao.edu
Telephone
Address
520 Edgemont Road
City
Charlottesville
State/Province
Virginia
Publisher
NRAO/AUI/NSF
Publisher ID
nrao
Resource ID
Resource URL
/image/nrao/Gallery_nrao17cb17b
Related Resources
Metadata Date
2018-05-07T12:52:51-04:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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Universescalefull
12,000,000,000 light years