The curious case of calcium-rich supernovae

Esahubble_potw1813a_1024

esahubble_potw1813a March 26th, 2018

Credit: ESA/Hubble & NASA

This image, captured by the Advanced Camera for Surveys (ACS) on the NASA/ESA Hubble Space Telescope, shows the spiral galaxy NGC 5714, about 130 million light-years away in the constellation of Botes (the Herdsman). NGC 5714 is classified as a Sc spiral galaxy, but its spiral arms the dominating feature of spiral galaxies are almost impossible to see, as NGC 1787 presents itself at an almost perfectly edge-on angle. Discovered by William Herschel in 1787, NGC 5714 was host to a fascinating and rare event in 2003. A faint supernova appeared about 8000 light-years below the central bulge of NGC 5714. Supernovae are the huge, violent explosions of dying stars, and the one that exploded in NGC 5714 not visible in this much later image was classified as a Type Ib/c supernova and named SN 2003dr. It was particularly interesting because its spectrum showed strong signatures of calcium. Calcium-rich supernovae are rare and hence of great interest to astronomers. Astronomers still struggle to explain these particular explosions as their existence presents a challenge to both observation and theory. In particular, their appearance outside of galaxies, their lower luminosity compared to other supernovae, and their rapid evolution are still open questions for researchers.

Image Source: https://www.spacetelescope.org/images/potw1813a/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
NGC 5714
Subject - Local Universe
Galaxy > Type > Spiral
Esahubble_potw1813a_128
 

Position Details

Position (ICRS)
RA = 14h 38m 10.0s
DEC = 46° 38’ 22.6”
Orientation
North is 6.3° CCW
Field of View
3.4 x 2.0 arcminutes
Constellation
Bootes

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_blue Hubble Space Telescope (ACS) Optical (B) 435.0 nm
Arrow_left_green Hubble Space Telescope (ACS) Optical (B) 435.0 nm
Arrow_left_green Hubble Space Telescope (ACS) Optical (V) 606.0 nm
Arrow_left_red Hubble Space Telescope (ACS) Optical (V) 606.0 nm
Spectrum_base
Arrow_top_blue
Arrow_top_green
Arrow_top_green
Arrow_top_red
Esahubble_potw1813a_1280
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ID
potw1813a
Subject Category
C.5.1.1  
Subject Name
NGC 5714
Credits
ESA/Hubble & NASA
Release Date
2018-03-26T06:00:00
Lightyears
Redshift
Reference Url
https://www.spacetelescope.org/images/potw1813a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
ACS, ACS, ACS, ACS
Color Assignment
Blue, Green, Green, Red
Band
Optical, Optical, Optical, Optical
Bandpass
B, B, V, V
Central Wavelength
435, 435, 606, 606
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
219.541509823, 46.6396035032
Reference Dimension
4037.0, 2355.0
Reference Pixel
2018.5, 1177.5
Scale
-1.3899923703e-05, 1.3899923703e-05
Rotation
6.3000000000000078
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
potw1813a
Metadata Date
2017-06-09T18:52:25+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.