File:Hubble Sees Double in M99 (potw2218a).jpg
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DescriptionHubble Sees Double in M99 (potw2218a).jpg |
English: The magnificent spiral galaxy M99 fills the frame in this image from the NASA/ESA Hubble Space Telescope. M99— which lies roughly 42 million light-years from Earth in the constellation Coma Berenices — is a “grand design” spiral galaxy, so-called because of the well-defined, prominent spiral arms visible in this image. M99 was captured by Hubble’s Wide Field Camera 3 on two separate occasions, helping astronomers study two entirely different astronomical phenomena. The first set of observations aimed to explore a gap between two different varieties of cosmic explosions; novae and supernovae. Novae, which are caused by the interactions between white dwarfs and larger stars in binary systems, are far less bright than the supernovae which mark the catastrophically violent deaths of massive stars. However, current astronomical theories predict that sudden, fleeting events could occur that shine with brightnesses between those of novae and supernovae. Despite being described by astronomers as being shrouded in mystery and controversy, just such an event was observed in M99. Astronomers turned to Hubble’s keen vision to take a closer look and precisely locate the fading source. The second set of observations were part of a large Hubble project which aims to chart the connections between young stars and the clouds of cold gas from which they form. Hubble inspected 38 nearby galaxies, identifying clusters of hot, young stars. These galaxies were also observed by the Atacama Large Millimeter/submillimeter Array (ALMA), a colossal radio telescope consisting of 66 individual dishes perched high in the Chilean Andes. The combination of Hubble’s observations of young stars and ALMA’s insight into clouds of cold gas will allow astronomers to delve into the details of star formation, and paves the way for future science with the NASA/ESA/CSA James Webb Space Telescope. |
Date | |
Source | https://esahubble.org/images/potw2218a/ |
Author | ESA/Hubble & NASA, M. Kasliwal, J. Lee and the PHANGS-HST Team |
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ESA/Hubble images, videos and web texts are released by the ESA under the Creative Commons Attribution 4.0 International license and may on a non-exclusive basis be reproduced without fee provided they are clearly and visibly credited. Detailed conditions are below; see the ESA copyright statement for full information. For images created by NASA or on the hubblesite.org website, or for ESA/Hubble images on the esahubble.org site before 2009, use the {{PD-Hubble}} tag.
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current | 07:08, 2 September 2023 | 7,264 × 3,731 (11.67 MB) | C messier (talk | contribs) | full size | |
20:27, 30 August 2023 | 1,280 × 658 (231 KB) | Laensom (talk | contribs) | Uploaded a work by ESA/Hubble & NASA, M. Kasliwal, J. Lee and the PHANGS-HST Team from https://esahubble.org/images/potw2218a/ with UploadWizard |
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Source | ESA/Hubble |
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Credit/Provider | ESA/Hubble & NASA, M. Kasliwal, J. Lee and the PHANGS-HST Team |
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Image title |
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Usage terms |
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Date and time of data generation | 06:00, 2 May 2022 |
Software used | Adobe Photoshop 23.2 (Windows) |
File change date and time | 14:56, 25 April 2022 |
Date and time of digitizing | 12:40, 7 March 2022 |
Date metadata was last modified | 16:56, 25 April 2022 |
Unique ID of original document | xmp.did:5144d8e4-ef66-5341-b56d-a2f0e85b2941 |
Keywords | M 99 |
Contact information |
ESA Office, Space Telescope Science Institute, 3700 San Martin Dr Baltimore, MD, 21218 United States |
IIM version | 4 |