Huge Rings Around a Black Hole

Chandra_763_1024

chandra_763 August 5th, 2021

Credit: X-ray: NASA/CXC/U.Wisc-Madison/S. Heinz et al.; Optical/IR: Pan-STARRS

The black hole in V404 Cygni is actively pulling material away from a companion star — with about half the mass of the Sun — into a disk around the invisible object. A burst of X-rays from the black hole detected in 2015 created the high-energy rings from a phenomenon known as light echoes, where light bounces off of dust clouds in between the system and Earth. In a new composite image, X-rays from Chandra (light blue) have been combined with optical data from the Pan-STARRS telescope that show the stars in the field of view. Each of the concentric rings is created by the burst of X-rays reflecting off dust clouds at different distances.

Provider: Chandra X-ray Observatory

Image Source: http://chandra.harvard.edu/photo/2021/v404cyg/

Curator: Chandra X-ray Observatory, Cambridge, MA, USA

Image Use Policy: http://chandra.harvard.edu/photo/image_use.html

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Image Details

Image Type
Observation
Object Name
V404 Cygni

Distance

Universescale1
7,800 light years

Position Details

Position (ICRS)
RA = 20h 24m 7.4s
DEC = 33° 50’ 5.2”
Field of View
-34.5 x -20.5 arcminutes
Constellation
Cygnus

Color Mapping

  Telescope Spectral Band Wavelength
Blue Chandra (ACIS) X-ray -
Chandra_763_1280
×
ID
763
Subject Category
Subject Name
V404 Cygni
Credits
X-ray: NASA/CXC/U.Wisc-Madison/S. Heinz et al.; Optical/IR: Pan-STARRS
Release Date
2021-08-05
Lightyears
7,800
Redshift
7,800
Reference Url
http://chandra.harvard.edu/photo/2021/v404cyg/
Type
Observation
Image Quality
Good
Distance Notes
Facility
Chandra X-Ray Observatory
Instrument
ACIS
Color Assignment
Blue
Band
X-ray
Bandpass
Central Wavelength
Start Time
2015-07-13-0000
Integration Time
67860
Dataset ID
17701, 17704
Notes
Coordinate Frame
ICRS
Equinox
Reference Value
306.03070722, 33.8347914874
Reference Dimension
4208, 2498
Reference Pixel
1.8955000000000E+03, 1.8955000000000E+03
Scale
-1.3666666666667E-04, -1.3666666666667E-04
Rotation
Coordinate System Projection:
TAN
Quality
FITS Header
Notes
Creator (Curator)
Chandra X-ray Observatory
URL
http://chandra.harvard.edu
Name
Chandra X-ray Observatory Center
Email
cxcpub@cfa.harvard.edu
Telephone
617.496.7941
Address
60 Garden St.
City
Cambridge
State/Province
MA
Postal Code
02138
Country
USA
Rights
http://chandra.harvard.edu/photo/image_use.html
Publisher
Chandra X-ray Center
Publisher ID
chandra
Resource ID
763
Metadata Date
2024-02-01T15:55:28-05:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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Universescalefull
7,800 light years

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