Gravitational Lens Helps Chandra Find Rare Type of Black Hole

Chandra_211_1024

chandra_211 March 20th, 2000

Credit: X-ray: NASA/IOA/Fabian et al., Optical: NASA/U.Durham/Smail et al.

This Chandra X-ray Observatory image shows a powerful point-like X-ray source that is consistent with energy emitted by a central giant black hole. The optical image of the galaxy does not show evidence that such a black hole is present. This inconsistency, combined with a deficit of low energy X-rays, indicates that this X-ray source may be a rare type of veiled black hole, called a Type 2 quasar.

Provider: Chandra X-ray Observatory

Image Source: http://chandra.harvard.edu/photo/2000/type2/

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 Details

Image Type
Observation
Object Name
Type 2 Quasar Abell 2390

Distance Details Distance

Universescale3
2,700,000,000 light years

Position Details Position Details

Position (ICRS)
RA = 21h 53m 36.5s
DEC = 17° 41’ 45.0”
Constellation
Pegasus

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Orange Chandra (ACIS) X-ray (X-ray) 826.7 pm
Orange Hubble (WFPC2) Optical (WFPC2-V) 555.0 nm
Orange Hubble (WFPC2) Optical (WFPC-I) 814.0 nm
DatasetID is the Chandra observation ID.
Spectrum_xray1
Orange
Orange
Orange
Chandra_211_1280
×
ID
211
Subject Category
Subject Name
Type 2 Quasar, Abell 2390
Credits
X-ray: NASA/IOA/Fabian et al., Optical: NASA/U.Durham/Smail et al.
Release Date
2000-03-20
Lightyears
2,700,000,000
Redshift
0.23
Reference Url
http://chandra.harvard.edu/photo/2000/type2/
Type
Observation
Image Quality
Good
Distance Notes
Facility
Chandra, Hubble, Hubble
Instrument
ACIS, WFPC2, WFPC2
Color Assignment
Orange, Orange, Orange
Band
X-ray, Optical, Optical
Bandpass
X-ray, WFPC2-V, WFPC-I
Central Wavelength
0.8267, 555, 814
Start Time
1999-11-05T17:01:44, -
Integration Time
9047, -
Dataset ID
501, -
Notes
D
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
328.402083333333, 17.6958333333333
Reference Dimension
Reference Pixel
Scale
Rotation
Coordinate System Projection:
TAN
Quality
Position
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
type2_xray.tif
Metadata Date
2012-07-27T15:52:20-04:00
Metadata Version
1.2
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Detailed color mapping information coming soon...

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Universescalefull
2,700,000,000 light years

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