File:Bars and Baby Stars - potw2004a.jpg
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Summary
editDescriptionBars and Baby Stars - potw2004a.jpg |
English: The galaxy depicted in this Picture of the Week is a barred spiral known as NGC 7541, seen here as viewed by the NASA/ESA Hubble Space Telescope, in the constellation of Pisces (The Fishes).
A barred spiral is a galaxy with whirling, pinwheeling, spiral arms, and a bright centre that is intersected by a bar of gas and stars. This bar cuts directly through the galaxy’s central region, and is thought to invigorate the region somewhat, sparking activity and fuelling myriad processes that may otherwise have never occurred or have previously ground to a halt (star formation and active galactic nuclei being key examples). We think bars exist in up to two-thirds of all spiral galaxies, including our own home, the Milky Way. NGC 7541 is actually observed to have a higher-than-usual star formation rate, adding weight to the theory that spiral bars act as stellar nurseries, corralling and funnelling inwards the material and fuel needed to create and nurture new baby stars. Along with its nearby companion NGC 7537, the galaxy makes up a pair of galaxies located about 110 million light-years away from us. |
Date | |
Source | https://spacetelescope.org/images/potw2004a/ |
Author | ESA/Hubble & NASA, A. Riess et al. |
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current | 13:50, 27 January 2020 | 4,020 × 2,933 (3.64 MB) | Jmencisom (talk | contribs) | User created page with UploadWizard |
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- File:Bars and Baby Stars (49449749351).jpg (file redirect)
- File:NGC 7541.jpg (file redirect)
- Category:NGC 7541
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Credit/Provider | ESA/Hubble & NASA, A. Riess et al. |
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Source | ESA/Hubble |
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Image title |
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Usage terms |
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Date and time of data generation | 06:00, 27 January 2020 |
Software used | Adobe Photoshop CC 2019 (Windows) |
File change date and time | 13:33, 11 November 2019 |
Date and time of digitizing | 13:25, 20 September 2019 |
Date metadata was last modified | 14:33, 11 November 2019 |
Unique ID of original document | xmp.did:3a62e8e0-b4c9-df4a-848f-05c5b83cff6c |
Keywords | NGC 7541 |
Contact information |
Karl-Schwarzschild-Strasse 2 Garching bei München, None, D-85748 Germany |
IIM version | 4 |