Edge-on galaxy hosts supernova explosion

Esahubble_potw1129a_1024

esahubble_potw1129a July 18th, 2011

Credit: ESA/Hubble & NASA

The NASA/ESA Hubble Space Telescope has imaged an elongated stream of stars, gas and dust called IC 755, which is actually a spiral galaxy that we are seeing edge-on. In 1999 a star within IC 755 was seen to explode as a supernova and named SN 1999an. The supernova was discovered by the Beijing Astronomical Observatory Supernova Survey and three years later Hubble was used to study the environment in which the explosion took place. The inclination of the galaxy made the supernova a challenging target as many other intervening objects obscured the view. Valuable data were obtained and suggest that before detonation the star may have been around 20 times more massive than our Sun, and that it was likely to have been in the region of 14 million years old. Supernovae like SN 1999an are classified as Type IIs and they are dramatic events that mark the end of the lives of massive stars. They have an important role to play in galaxy evolution as many elements are formed during the explosion and are ejected with such force that they are distributed far and wide. Shockwaves also help to mix material within the host galaxy and may spark new rounds of star formation. Billions of stars make up galaxies like IC 755 and many will become supernovae, using their final moments to breathe new life into the rest of the Universe. This picture was created from multiple images taken with the Wide Field Camera of Hubble’s Advanced Camera for Surveys. Exposures through a blue filter (F435W) are coloured blue, exposures through a yellow-green filter (F555W) are coloured green and images through a near-infrared filter (F814W) are shown as red. The total exposure times per filter are 430 s and the field of view is 3.3 x 1.5 arcminutes.

Provider: Hubble Space Telescope | ESA

Image Source: https://esahubble.org/images/potw1129a/

Curator: ESA/Hubble, Baltimore, MD, United States

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
IC 755 SN 1999an
Subject - Local Universe
Star > Evolutionary Stage > Supernova
Galaxy > Type > Spiral
Esahubble_potw1129a_128
 

Position Details

Position (ICRS)
RA = 12h 1m 10.5s
DEC = 14° 6’ 14.9”
Orientation
North is 103.3° CW
Field of View
3.3 x 1.5 arcminutes
Constellation
Coma Berenices

Color Mapping

  Telescope Spectral Band Wavelength
Blue Hubble (ACS) Optical (B) 435.0 nm
Green Hubble (ACS) Optical (V) 555.0 nm
Red Hubble (ACS) Infrared (I) 814.0 nm
Spectrum_base
Blue
Green
Red
Esahubble_potw1129a_1280
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ID
potw1129a
Subject Category
C.3.1.8   C.5.1.1  
Subject Name
IC 755, SN 1999an
Credits
ESA/Hubble & NASA
Release Date
2011-07-18T10:00:00
Lightyears
Redshift
Reference Url
https://esahubble.org/images/potw1129a/
Type
Observation
Image Quality
Distance Notes
Distance in light years from NED
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
ACS, ACS, ACS
Color Assignment
Blue, Green, Red
Band
Optical, Optical, Infrared
Bandpass
B, V, I
Central Wavelength
435, 555, 814
Start Time
Integration Time
430, 430, 430
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
180.29377427674453, 14.104148209922153
Reference Dimension
3928.0, 1807.0
Reference Pixel
1964.0, 904.0
Scale
-1.3900175174260443e-05, 1.3900175174260443e-05
Rotation
-103.30000000000004
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
https://esahubble.org
Name
Email
Telephone
Address
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr
City
Baltimore
State/Province
MD
Postal Code
21218
Country
United States
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
potw1129a
Metadata Date
2011-04-19T13:48:34+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.