ALMA Sees Trans-galactic Streamers Feeding Distant Galaxy

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nrao_NRAO_Gallery_nrao18ch26_fits_highres  

Credit: ALMA (ESO/NAOJ/NRAO),T. Díaz-Santos et al.; S. Dagnello (NRAO/AUI/NSF)

ALMA image reveals how W2246-0526 is being fed by three companion galaxies through trans-galactic streamers of gas. The main galaxy and one of its companions are in the center. To the lower left is another companion and its large tidal tail that connects it to the main galaxy. The upper left concentration is the third such companion galaxy.

Image Source: https://public.nrao.edu/news/2018-alma-luminous-streamers/

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

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

Image Details

Image Type
Observation
Object Name
W2246-0526
Subject - Distant Universe
Galaxy > Activity > Ultraluminous

Distance

Universescale2
12,400,000 light years
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Position Details

Position (ICRS)
RA = 22h 46m 7.6s
DEC = -5° 26’ 34.9”
Orientation
North is 0.3° CCW
Field of View
0.4 x 0.4 arcminutes
Constellation
Aquarius

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_blue ALMA Millimeter 1.1 mm
Spectrum_ir1
Arrow_top_blue
Nrao_nrao_gallery_nrao18ch26_fits_highres_1280
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ID
NRAO_Gallery_nrao18ch26_fits_highres
Subject Category
D.5.3.4  
Subject Name
W2246-0526
Credits
ALMA (ESO/NAOJ/NRAO),T. Díaz-Santos et al.; S. Dagnello (NRAO/AUI/NSF)
Release Date
Lightyears
12.4E+06
Redshift
12.4E+06
Reference Url
https://public.nrao.edu/news/2018-alma-luminous-streamers/
Type
Observation
Image Quality
Good
Distance Notes
Facility
ALMA
Instrument
Color Assignment
Blue
Band
Millimeter
Bandpass
Central Wavelength
1.14894E+06
Start Time
2016-06-20T06:42
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
2000.0
Reference Value
341.5314831393, -5.443035455428
Reference Dimension
3000, 3000
Reference Pixel
251, 251
Scale
-0.00000231142, 0.00000231142
Rotation
0.29308621946
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
World Coordinate System resolved using PinpointWCS 0.9.2 revision 218+ by the Chandra X-ray Center
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
Metadata Date
2018-11-16T14:40:01+00:00
Metadata Version
1.2
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Detailed color mapping information coming soon...

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Universescalefull
12,400,000 light years