Coils of Apep

Eso_eso1838a_1024

eso_eso1838a November 19th, 2018

Credit: ESO/Callingham et al.

The VISIR instrument on ESOs VLT captured this stunning image of a newly-discovered massive binary star system. Nicknamed Apep after an ancient Egyptian deity, it could be the first gamma-ray burst progenitor to be found in our galaxy. Apeps stellar winds have created the dust cloud surrounding the system, which consists of a binary star with a fainter companion. With 2 Wolf-Rayet stars orbiting each other in the binary, the serpentine swirls surrounding Apep are formed by the collision of two sets of powerful stellar winds, which create the spectacular dust plumes seen in the image. The reddish pinwheel in this image is data from the VISIR instrument on ESOs Very Large Telescope (VLT), and shows the spectacular plumes of dust surrounding Apep. The blue sources at the centre of the image are a triple star system which consists of a binary star system and a companion single star bound together by gravity. Though only two star-like objects are visible in the image, the lower source is in fact an unresolved binary Wolf-Rayet star. The triple star system was captured by the NACO adaptive optics instrument on the VLT.

Image Source: https://www.eso.org/public/images/eso1838a/

Curator: European Southern Observatory, Garching bei München, None, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
Apep
Subject - Milky Way
Star > Grouping > Binary
Eso_eso1838a_128
 

Position Details

Position (ICRS)
RA = 16h 0m 50.5s
DEC = -51° 42’ 44.9”
Orientation
North is up
Field of View
0.3 x 0.3 arcminutes
Constellation
Norma

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_cyan Very Large Telescope (NACO) Infrared (IB) 2.2 µm
Arrow_left_orange Very Large Telescope (VISIR) Infrared (ArIII) 8.9 µm
Spectrum_base
Arrow_top_cyan
Arrow_top_orange
Eso_eso1838a_1280
×
ID
eso1838a
Subject Category
B.3.6.1  
Subject Name
Apep
Credits
ESO/Callingham et al.
Release Date
2018-11-19T17:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso1838a/
Type
Observation
Image Quality
Distance Notes
Facility
Very Large Telescope, Very Large Telescope
Instrument
NACO, VISIR
Color Assignment
Cyan, Orange
Band
Infrared, Infrared
Bandpass
IB, ArIII
Central Wavelength
2240, 8900
Start Time
Integration Time
Dataset ID
None, None
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
240.210346554, -51.7124824843
Reference Dimension
1440.0, 1440.0
Reference Pixel
720.0, 720.0
Scale
-2.98297490851e-06, 2.98297490851e-06
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
None
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
European Southern Observatory
Publisher ID
eso
Resource ID
eso1838a
Metadata Date
2018-11-28T10:32:38.400792
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.