File:ESO 185-13 (16748018329).png
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Summary[edit]
DescriptionESO 185-13 (16748018329).png |
English: WFPC2 image from 2007 of a galaxy which recently underwent a collision. Simulations have shown that this particular pattern which tends to form arced shells of stars around the galaxy can be attributed to a smaller mass plunging into the larger one and oscillating back and forth a bit before being incorporated. Called a luminous blue compact galaxy, a burst of star formation has also taken place within it, possibly due to the merging.
If you look very closely at the faint stream to the left of the galaxy, you can see the globular clusters flung far from their parent. They look like resolved individual stars but they are really clusters of many thousands. One wonders if they will make it back or be left behind. Numerous background galaxies are also visible. The spiky stars are Milky Way foreground stars. During this time period (2007), Hubble's ACS (Advanced Camera for Surveys) had a problem which kept it from fully functioning, but the old WFPC2 (Wide Field Planetary Camera 2) was still going. It wasn't until 2009 (STS-125) that ACS was repaired, WFPC2 was removed, and WFC3 (Wide Field Camera 3) was installed through no small feat of orbital surgery. This image is possible thanks to the following proposal: The Nearest Luminous Blue Compact Galaxies: A Window on Galaxy Formation Red: hst_10902_05_wfpc2_f814w_wf_sci Green: hst_10902_05_wfpc2_f606w_wf_sci Blue: hst_10902_05_wfpc2_f450w_wf_sci + hst_10902_b2_wfpc2_f439w_wf_drz + hst_10902_b2_wfpc2_f336w_wf_sci + (faintly) hst_10902_05_wfpc2_f606w_wf_sci North is NOT up. It is 20° counter-clockwise from up. |
Date | Taken on 25 March 2015, 01:13:24 |
Source | ESO 185-13 |
Author | geckzilla |
Flickr sets InfoField | all astronomy; Hubble Processing |
Flickr tags InfoField | hubble; collision; eso18513; hst; galaxy; hla; wfpc2; luminousbluecompactgalaxy |
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This image was originally posted to Flickr by geckzilla at https://flickr.com/photos/54209675@N00/16748018329. It was reviewed on 25 February 2024 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
25 February 2024
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Date and time of digitizing | 21:13, 24 March 2015 |
File change date and time | 12:48, 26 March 2015 |
Date metadata was last modified | 12:48, 26 March 2015 |
Unique ID of original document | xmp.did:3857c4df-29bf-884f-b85e-02220750b866 |
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