Erratic Black Hole Regulates Itself

Chandra_421_1024

chandra_421 March 25th, 2009

Credit: X-ray (NASA/CXC/Harvard/J.Neilsen); Optical & IR (Palomar DSS2)

The inset of this graphic shows Chandra's X-ray image of GRS 1915+105 in context of a crowded field seen in optical and infrared light. Chandra observed this object eleven times over some ten years, allowing scientists to track and analyze the black hole's behavior. A jet in this system is apparently choked off periodically when a wind from the accretion disk increases. Conversely, once the wind dies down the jet can re-emerge. These results may be the first clear evidence that this class of black holes has a mechanism for regulating their growth.

Provider: Chandra X-ray Observatory

Image Source: http://chandra.harvard.edu/photo/2009/g1915/

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
Collage
Object Name
GRS 1915+105
Subject - Milky Way
Star > Evolutionary Stage > Black Hole

Distance Details Distance

Universescale1
40,000 light years
Chandra_421_128
 

Position Details Position Details

Position (ICRS)
RA = 19h 13m 44.6s
DEC = 11° 18’ 0.2”
Orientation
North is up
Field of View
5.2 x 5.2 degrees
Constellation
Aquila

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Red DSS (DSS2IR) Infrared (Near-IR) 798.0 nm
Green DSS (DSS2R) Optical (R-band) 660.0 nm
Blue DSS (DSS2B) Optical (B-band) 443.0 nm
Purple Chandra (ACIS/HETG) X-ray 826.7 pm
Spectrum_xray1
Red
Green
Blue
Purple
Chandra_421_1280
×
ID
421
Subject Category
B.3.1.10  
Subject Name
GRS 1915+105
Credits
X-ray (NASA/CXC/Harvard/J.Neilsen); Optical & IR (Palomar DSS2)
Release Date
2009-03-25
Lightyears
40,000
Redshift
40,000
Reference Url
http://chandra.harvard.edu/photo/2009/g1915/
Type
Collage
Image Quality
Good
Distance Notes
Facility
DSS, DSS, DSS, Chandra
Instrument
DSS2IR, DSS2R, DSS2B, ACIS/HETG
Color Assignment
Red, Green, Blue, Purple
Band
Infrared, Optical, Optical, X-ray
Bandpass
Near-IR, R-band, B-band, -
Central Wavelength
798, 660, 443, 0.8267
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
288.4358521, 11.3000611
Reference Dimension
3000.0, 3000.0
Reference Pixel
1501.0, 1501.0
Scale
0.0017332, 0.0017331958
Rotation
0.04
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
WCS retrieved using CXCs PinpointWCS
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 Observatory Center
Publisher ID
chandra
Resource ID
g1915.tif
Resource URL
http://chandra.harvard.edu/photo/2009/g1915/g1915.tif
Related Resources
Metadata Date
2012-12-21
Metadata Version
1.2
×

 

Detailed color mapping information coming soon...

×
Universescalefull
40,000 light years

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