Surprise within a cloud

Eso_potw1448a_500

eso_potw1448a December 1st, 2014

Credit: ESO/VVV Team/A. Guzmán

This image shows a region of the Milky Way that lies within the constellation of Scorpius, close to the central plane of the galaxy. The region hosts a dense cloud of dust and gas associated with the molecular cloudIRAS 16562-3959, clearly visible as an orange smudge among the rich pool of stars at the centre of the image. Clouds like these are breeding grounds for new stars. In the centre of this cloud the bright object known as G345.4938+01.4677 can just be seen beyond the veil of gas and dust. This is a very young star in the process of forming as the cloud collapses under gravity. The young star is very bright and heavy roughly 15 times more massive than the Sun and featured in a recent Atacama Large Millimeter/submillimeter Array (ALMA) result. The team of astronomers made surprising discoveries within G345.4938+01.4677 there is a large disc of gas and dust around the forming star as well as a stream of material flowing out from it. Theories predict that neither such a stream, nor the disc itself, are likely to exist around stars like G345.4938+01.4677 because the strong radiation from such massive new stars is thought to push material away. This image was made using the Visible and Infrared Survey Telescope for Astronomy (VISTA), which is part of ESOs Paranal Observatory in the Atacama Desert of Chile. It is the worlds largest survey telescope, with a main mirror that measures over four metres across. The colour image was produced by the VVV survey, which is one of six large public surveys that are devoted to mapping the southern sky. The bright star in the bottom left of the image is known as HD 153220.

Image Source: https://www.eso.org/public/images/potw1448a/

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
IRAS 16562-3959
Subject - Milky Way
Nebula » Appearance » Dark » Molecular Cloud
Eso_potw1448a_128
 

Position Details

Position (ICRS)
RA = 16h 59m 41.8s
DEC = -40° 3’ 42.7”
Orientation
North is 38.1° CW
Field of View
15.0 x 15.0 arcminutes
Constellation
Scorpius

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_red Visible and Infrared Survey Telescope for Astronomy (VIRCAM) Infrared (Ks) -
Arrow_left_green Visible and Infrared Survey Telescope for Astronomy (VIRCAM) Infrared (H) -
Arrow_left_blue Visible and Infrared Survey Telescope for Astronomy (VIRCAM) Infrared (J) -
Eso_potw1448a_1280
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ID
potw1448a
Subject Category
B.4.2.3.1  
Subject Name
IRAS 16562-3959
Credits
ESO/VVV Team/A. Guzmán
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/potw1448a/
Type
Observation
Image Quality
Distance Notes
Facility
Visible and Infrared Survey Telescope for Astronomy, Visible and Infrared Survey Telescope for Astronomy, Visible and Infrared Survey Telescope for Astronomy
Instrument
VIRCAM, VIRCAM, VIRCAM
Color Assignment
Red, Green, Blue
Band
Infrared, Infrared, Infrared
Bandpass
Ks, H, J
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
254.924013443, -40.0618619387
Reference Dimension
2640.0, 2637.0
Reference Pixel
1320.0, 1318.0
Scale
-9.46473831317e-05, 9.46473831317e-05
Rotation
-38.07999999999992
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
potw1448a
Metadata Date
2014-11-28T08:38:59+01:00
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.