Hubble image archive
Supernova 1993J in Spiral Galaxy M81
This Hubble Space Telescope photo composite shows the location of supernova 1993J inside the majestic spiral galaxy M81. Though astronomers saw the star explode as a supernova 21 years ago, the glow of that explosion is still present, as seen in the inset image. The supernova has...
- Date
- Jan 1, 2014
- Mission
- Hubble Space Telescope
- Archive ID
- hubblesite-images-2014-38-3413-image
This Hubble Space Telescope photo composite shows the location of supernova 1993J inside the majestic spiral galaxy M81. Though astronomers saw the star explode as a supernova 21 years ago, the glow of that explosion is still present, as seen in the inset image. The supernova has faded to the point where astronomers are confident that they have picked up the ultraviolet glow of a very hot companion star. This is the first time astronomers have been able to put constraints on the properties of the companion star in this unusual class of supernova called Type IIb. Hubble observations in ultraviolet light confirm the theory that the explosion originated in a double-star system where one star fueled the mass-loss from the aging primary star.
Credits
NASA, ESA, A. Zezas (CfA), and A. Filippenko (UC Berkeley);Acknowledgment: Hubble Heritage Team (STScI/AURA);
Science: NASA, ESA, and O. Fox (University of California, Berkeley), A. Bostroem (STScI), S. Van Dyk (Caltech), A. Filippenko (University of California, Berkeley), C. Fransson (Stockholm University), T. Matheson (NOAO), S. Cenko (University of California, Berkeley, and NASA/GSFC), P. Chandra (National Center for Radio Astrophysics/Pune University, India), V. Dwarkadas (University of Chicago), W. Li and A. Parker (University of California, Berkeley), and N. Smith (Steward Observatory)
Image Details
| About The Object | |
|---|---|
| Object Name | SN 1993J, Supernova 1993J |
| Object Description | Supernova in M81 |
| R.A. Position | 09h 55m 24.78s |
| Dec. Position | 69° 1' 13.68" |
| Constellation | Ursa Major |
| Distance | 11 million light-years (3,600,000 parsecs) |
| About The Data | |
| Data Description | Note: The wide-field image of M81 was released on May 28, 2007. ACS/WFC data from proposal (PI: A. Zezas (Harvard-Smithsonian Center for Astrophysics)) was combined into a BVI color-composite image. Hubble data for this release of SN 1993J were obtained from proposal : A. Filippenko (University of California, Berkeley), P. Chandra (Pune University, India), R. Chevalier (University of Virginia), V. Dwarkadas (University of Chicago), C. Fransson (Stockholm University), W. Li (University of California, Berkeley) T. Matheson (NOAO), J. Silverman (University of Texas, Austin), N. Smith (Steward Observatory), and S. Van Dyk (Caltech). The science team comprises: O. Fox (University of California, Berkeley), A. Bostroem (STScI), S. Van Dyk (Caltech), A. Filippenko (University of California, Berkeley), C. Fransson (Stockholm University), T. Matheson (NOAO), S. Cenko (University of California, Berkeley, and NASA/GSFC), P. Chandra (Pune University, India), V. Dwarkadas (University of Chicago), W. Li and A. Parker (University of California, Berkeley), and N. Smith (Steward Observatory). |
| Instrument | HST>WFC3/UVIS |
| Exposure Dates | December 24, 2011 |
| Filters | Galaxy M81 image: F435W (B), F606W (V), and F814W (I) Inset image: F438W (B), F555W (V), and F625W (r) |
| About The Image | |
| Color Info | The galaxy M81 image is a composite of many separate exposures made by the ACS instrument on the Hubble Space Telescope. Three filters were used to sample light from broad wavelengths. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Blue: F435W (B) Green: F606W (V) Red: F814W (I) The inset image of SN 1993J is a composite of separate exposures acquired by the ACS/WFC instrument. Several filters were used to sample various wavelengths. The color results from assigning different hues (colors) to each monochromatic (grayscale) image as follows: Blue: F438W (B) Green: F555W (V) Red: F625W (r) |
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