Probing a super-giant shell of gas and stars

Esahubble_potw1147a_1024

esahubble_potw1147a November 21st, 2011

Credit: ESA/Hubble, NASA and D. A. Gouliermis

In one of the largest known star formation regions in the Large Magellanic Cloud (LMC), a small satellite galaxy of the Milky Way, lie young and bright stellar groupings known as OB associations. One of these associations, called LH 72, was captured in this dramatic NASA/ESA Hubble Space Telescope image. It consists of a few high-mass, young stars embedded in a beautiful and dense nebula of hydrogen gas. Much of the star formation in the LMC occurs in super-giant shells. These regions of interstellar gas are thought to have formed due to strong stellar winds and supernova explosions that cleared away much of the material around the stars creating wind-blown shells. The swept-up gas eventually cools down and fragments into smaller clouds that dot the edges of these regions and eventually collapse to form new stars. The biggest of these shells, home to LH 72, is designated LMC4. With a diameter of about 6000 light-years, it is the largest in the Local Group of galaxies that is home to both the Milky Way and LMC. Studying gas-embedded young associations of stars like LH 72 is a way of probing the super-giant shells to understand how they formed and evolved. This image was taken with Hubbles Wide Field Planetary Camera 2 using five different filters in ultraviolet, visible and infrared light. The field of view is approximately 1.8 by 1.8 arcminutes.

Provider: Hubble Space Telescope | ESA

Image Source: https://www.spacetelescope.org/images/potw1147a/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details Image Details

Image Type
Observation
Object Name
LH 72 LMC4
Subject - Local Universe
Nebula > Type > Star Formation
Esahubble_potw1147a_128
 

Position Details Position Details

Position (ICRS)
RA = 5h 32m 31.1s
DEC = -66° 27’ 28.7”
Orientation
North is 99.1° CCW
Field of View
1.8 x 1.8 arcminutes
Constellation
Dorado

Color Mapping Details Color Mapping

  Telescope Spectral Band Wavelength
Red Hubble (WFC2) Optical (H-alpha) -
Orange Hubble (WFC2) Infrared (I) -
Green Hubble (WFC2) Optical (V) -
Blue Hubble (WFC3) Optical (450) -
Blue Hubble (WFC2) Ultraviolet (U) -
Esahubble_potw1147a_1280
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ID
potw1147a
Subject Category
C.4.1.2  
Subject Name
LH 72, LMC4
Credits
ESA/Hubble, NASA and D. A. Gouliermis
Release Date
2011-11-21T10:00:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/potw1147a/
Type
Observation
Image Quality
Distance Notes
Distance in light years to the LMC
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
WFC2, WFC2, WFC2, WFC3, WFC2
Color Assignment
Red, Orange, Green, Blue, Blue
Band
Optical, Infrared, Optical, Optical, Ultraviolet
Bandpass
H-alpha, I, V, 450, U
Central Wavelength
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
83.1294862979, -66.4579656966
Reference Dimension
1100.0, 1078.0
Reference Pixel
550.0, 539.0
Scale
-2.79188650762e-05, 2.79188650762e-05
Rotation
99.140000000000086
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
http://www.spacetelescope.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
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw1147a
Metadata Date
2011-08-18T14:31:25+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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