File:NGC 4449 (15680665832).png
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Summary
[edit]DescriptionNGC 4449 (15680665832).png |
English: This is some wonderful narrowband imagery of NGC 4449 captured by Hubble back in 2005. When I first found this, I thought for sure it had already been processed somewhere along the line but all I could find was a wideband mosaic, which is here if you want to check it out. Rob Gendler did his own take as well, more strongly emphasizing the narrowband but still utilizing the wideband. The wideband imagery is nice but wow, is there a lot of amazing emission structure revealed with the narrowband data isolated. There are simple, smallish spheres, larger complex clouds, and down the center, streaming outwards like a ruptured fissure, is some massive work being done by the prodigious number of young stars radiating fiercely along the seam.
Red here represents areas of H-alpha and [N II] while slightly bluer areas show where [O III] emissions are also present. Mediumband green data (F550M) was also available and I used this to bring the stars to slightly more natural, whiter colors. Rather than maximizing differentiation between emissions, this time I applied more "realistic" colors. There's so much overlapping that it hardly matters, anyhow. Two HST Proposals are associated with these data: NGC 4449: a Testbed for Starbursts in the Low- and High-Redshift Universe Calibrating Star Formation: The Link between Feedback and Galaxy Evolution Red: HST_10522_01_ACS_WFC_F660N_sci + HST_10585_03_ACS_WFC_F658N_sci Green: HST_10585_03_ACS_WFC_F658N_sci + HST_10522_01_ACS_WFC_F550M_sci Blue: HST_10522_01_ACS_WFC_F502N_sci1 North is NOT up. It is 47.5° counter-clockwise from up. |
Date | Taken on 31 October 2014, 20:37:31 |
Source | NGC 4449 |
Author | geckzilla |
Flickr sets InfoField | Dwarf Galaxies; all astronomy; Resolution; Hubble Processing |
Flickr tags InfoField | hubble; starburstgalaxy; ugc7592; ngc4449; halpha; dwarfgalaxy; hst; hla; oiii |
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This image was originally posted to Flickr by geckzilla at https://flickr.com/photos/54209675@N00/15680665832. It was reviewed on 24 February 2024 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
24 February 2024
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current | 21:42, 24 February 2024 | 3,993 × 3,659 (25.73 MB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://live.staticflickr.com/7580/15680665832_20c4d77650_o.png via Commons:Spacemedia |
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Software used | |
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Date and time of digitizing | 16:37, 31 October 2014 |
File change date and time | 22:08, 31 October 2014 |
Date metadata was last modified | 22:08, 31 October 2014 |
Unique ID of original document | xmp.did:9d7e43c9-bd67-5d44-8752-7f3877beb92c |
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