A Double Nucleus in Active Galaxy Markarian 315

Stsci_1993-03a_1024

stsci_1993-03a January 7th, 1993

Credit: J. MacKenty (STScl), and NASA/ESA.

A NASA Hubble Space Telescope image of the core of the Seyfert galaxy Markarian 315 reveals two nuclei located approximately 6,000 light-years apart. (Seyfert galaxies are a class of spiral galaxy with extremely bright nuclei that are thought to be powered by massive black holes accreting matter.) The brighter member of the pair is the energetic core of the galaxy which probably contains a black hole. The fainter companion is considered to be the core of a galaxy in the process of merging with Markarian 315. The image helps confirm that galaxy mergers may be one mechanism for driving gas deep into the heart of a galaxy, according to astronon~t,rs. This raw material fuels a massive black hole, theorized to be the "central engine" in Seyfert galaxies and other active galactic nuclei. The photograph, taken with HST's Planetary Camera, was presented at the 1 81st Meeting of the American Astronomical Society meeting in Phoenix, AZ on January 7, 1993.

Provider: Space Telescope Science Institute

Image Source: https://hubblesite.org/contents/news-releases/1993/news-1993-03

Curator: STScI, Baltimore, MD, USA

Image Use Policy: http://hubblesite.org/copyright/

Image Details Image Details

Image Type
Observation
Object Name
Markarian 315
Subject - Local Universe
Galaxy > Activity > AGN > Seyfert

Distance Details Distance

Universescale3
550,000,000 light years
Stsci_1993-03a_128
 

Position Details Position Details

Position (ICRS)
RA = 23h 4m 0.5s
DEC = 22° 37’ 10.3”
Orientation
North is 103.3° CW
Field of View
0.2 x 0.2 arcminutes
Constellation
Pegasus

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Red Hubble (WFPC) Optical (I) 785.0 nm
Spectrum_base
Red
Stsci_1993-03a_1280
×
ID
1993-03a
Subject Category
C.5.3.2.2  
Subject Name
Markarian 315
Credits
J. MacKenty (STScl), and NASA/ESA.
Release Date
1993-01-07T00:00:00
Lightyears
550,000,000
Redshift
550,000,000
Reference Url
https://hubblesite.org/contents/news-releases/1993/news-1993-03
Type
Observation
Image Quality
Good
Distance Notes
Light years
Facility
Hubble
Instrument
WFPC
Color Assignment
Red
Band
Optical
Bandpass
I
Central Wavelength
785
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
2000.0
Reference Value
346.00213664492, 22.61952202186
Reference Dimension
2494.00, 2353.00
Reference Pixel
807.11381821638, 1354.33165339190
Scale
-0.00000116967, 0.00000116967
Rotation
-103.29196257589
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 FITS X FITS Y EPO X EPO Y 388.71 346.82 1754.93 1080.51 416.49 392.57 986.24 1134.90 399.66 371.74 1374.21 1069.64 404.88 367.70 1372.53 1139.16 Center Pixel Coordinates: 1247.00 346.00192129073 1176.50 22.61995194254
Creator (Curator)
STScI
URL
http://hubblesite.org
Name
Space Telescope Science Institute Office of Public Outreach
Email
outreach@stsci.edu
Telephone
410-338-4444
Address
3700 San Martin Drive
City
Baltimore
State/Province
MD
Postal Code
21218
Country
USA
Rights
http://hubblesite.org/copyright/
Publisher
STScI
Publisher ID
stsci
Resource ID
STSCI-H-p9303a-f-2494x2353.tif
Resource URL
https://mast.stsci.edu/api/latest/Download/file?uri=mast:OPO/product/STSCI-H-p9303a-f-2494x2353.tif
Related Resources
http://hubblesite.org/newscenter/archive/releases/1993/03
Metadata Date
2022-07-06T00:00:00
Metadata Version
1.2
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Universescalefull
550,000,000 light years

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