VLT/MUSE image of the galaxy NGC 4993 and associated kilonova

Eso_eso1733d_1024

eso_eso1733d October 16th, 2017

Credit: ESO/J.D. Lyman, A.J. Levan, N.R. Tanvir

This image from the MUSE instrument on ESO’s Very Large Telescope at the Paranal Observatory in Chile shows the galaxy NGC 4993, about 130 million light-years from Earth. The galaxy is not itself unusual, but it contains something never before witnessed, the aftermath of the explosion of a pair of merging neutron stars, a rare event called a kilonova (seen just above and slightly to the left of the centre of the galaxy). This merger also produced gravitational waves and gamma rays, both of which were detected by LIGO-Virgo and Fermi/INTEGRAL respectively. By also creating a spectrum for each part of the object MUSE allows the emission from glowing gas to be seen, which appears in red here and reveals a surprising spiral structure.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso1733d/

Curator: European Southern Observatory, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
NGC 4993
Subject - Local Universe
Star > Evolutionary Stage > Neutron Star
Galaxy > Type > Elliptical
Eso_eso1733d_128
 

Position Details

Position (ICRS)
RA = 13h 9m 47.8s
DEC = -23° 22’ 57.0”
Orientation
North is up
Field of View
0.9 x 0.9 arcminutes
Constellation
Hydra

Color Mapping

  Telescope Spectral Band Wavelength
Red VLT (MUSE) Optical (I) 879.0 nm
Red VLT (MUSE) Optical (NII) 658.0 nm
Green VLT (MUSE) Optical (R) 634.0 nm
Blue VLT (MUSE) Optical (V) 547.0 nm
Spectrum_base
Red
Red
Green
Blue
Eso_eso1733d_1280
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ID
eso1733d
Subject Category
C.3.1.9   C.5.1.4  
Subject Name
NGC 4993
Credits
ESO/J.D. Lyman, A.J. Levan, N.R. Tanvir
Release Date
2017-10-16T16:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso1733d/
Type
Observation
Image Quality
Distance Notes
Facility
Very Large Telescope, Very Large Telescope, Very Large Telescope, Very Large Telescope
Instrument
MUSE, MUSE, MUSE, MUSE
Color Assignment
Red, Red, Green, Blue
Band
Optical, Optical, Optical, Optical
Bandpass
I, NII, R, V
Central Wavelength
879, 658, 634, 547
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
197.449098066, -23.3825101942
Reference Dimension
657.0, 615.0
Reference Pixel
328.5, 307.5
Scale
-2.30818208602e-05, 2.30818208602e-05
Rotation
-0
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
European Southern Observatory
URL
http://www.eso.org
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
European Southern Observatory
Publisher ID
eso
Resource ID
eso1733d
Metadata Date
2017-10-11T09:50:37+02:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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There is no distance meta data in this image.

 

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