File:Compass Image for NGC 7424 (2018-20-4158).tif
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Summary
[edit]DescriptionCompass Image for NGC 7424 (2018-20-4158).tif |
English: Seventeen years ago, astronomers witnessed supernova 2001ig go off 40 million light-years away in the galaxy NGC 7424, in the southern constellation Grus, the Crane. Shortly after SN 2001ig exploded, scientists photographed the supernova with the European Southern Observatory’s Very Large Telescope (VLT) in 2002. Two years later, they followed up with the Gemini South Observatory, which hinted at the presence of a surviving binary companion. As the supernova’s glow faded, scientists focused Hubble on that location in 2016. They pinpointed and photographed the surviving companion, which was possible only due to Hubble’s exquisite resolution and ultraviolet sensitivity. Hubble observations of SN 2001ig provide the best evidence yet that some supernovas originate in double-star systems. |
Date | 26 April 2018 (upload date) |
Source | Compass Image for NGC 7424 |
Author | , , S. Ryder (Australian Astronomical Observatory), and O. Fox () |
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Licensing
[edit]Public domainPublic domainfalsefalse |
This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag. |
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current | 00:29, 13 September 2023 | 2,383 × 1,837 (6.39 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://stsci-opo.org/STScI-01EVT0K6Q6VEVCXRZC8K7YF540.tif via Commons:Spacemedia |
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Image title | In the fading afterglow of a supernova explosion, astronomers using NASA's Hubble Space Telescope have photographed the first image of a surviving companion to a supernova. This is the most compelling evidence that some supernovas originate in double-star systems. The companion to supernova 2001ig's progenitor star was no innocent bystander to the explosion - it siphoned off almost all of the hydrogen from the doomed star's stellar envelope. SN 2001ig is categorized as a Type IIb stripped-envelope supernova, which is a relatively rare type of supernova in which most, but not all, of the hydrogen is gone prior to the explosion. Perhaps as many as half of all stripped-envelope supernovas have companions - the other half lose their outer envelopes via stellar winds. |
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Author | Space Telescope Science Institute Office of Public Outreach |
Width | 2,383 px |
Height | 1,837 px |
Bits per component |
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Compression scheme | LZW |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Number of rows per strip | 36 |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CC (Macintosh) |
File change date and time | 10:38, 17 April 2018 |
Exif version | 2.21 |
Color space | Uncalibrated |