File:Markarian 209.png
Original file (3,993 × 2,313 pixels, file size: 45.92 MB, MIME type: image/png)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
Mrk 209 is a dwarf galaxy with a bit of star formation going on, and thus is said to be blue. A few years back this one was processed and released by the ESA folks, but in the intervening years, further observations have been made. Ultraviolet and narrowband H-alpha bands are now available, so I thought I would newly reprocess the image with those additions. This allowed me to generate a more familiar image with pink hydrogen clouds rather than blue ones even though the near-infrared band (F814W) still occupies the red channel and the red band (F606W) sits within the green channel. The UV data, which is all blue in my image, really highlights some of those young and brightly burning blue stars which make the galaxy a noteworthy dwarf. To the right is a local Milky Way star that appears bright to Hubble, but is actually a dim, anonymous star of little interest to the astronomical community. It looks nice in the composition, though. I think that the wider field of view allows one to see how far the fainter, highly diffuse outer reaches extend far beyond what could visually define the outline of the galaxy. LEGUS data products (except H-alpha, as of this writing) are available from this page: archive.stsci.edu/prepds/legus/dataproducts-public.html Data from the following proposals was used: The Dynamic State of the Dwarf Galaxy Rich Canes Venatici I Region H-alpha LEGUS: Unveiling the Interplay Between Stars, Star Clusters, and Ionized Gas LEGUS: Legacy ExtraGalactic UV Survey Red: WFC3/UVIS F657N + ACS/WFC F814W Green: ACS/WFC F606W Blue: WFC3/UVIS F275W + WFC3/UVIS F336W + WFC3/UVIS F438W North is NOT up. It is 31° counter-clockwise from up. |
| Date | |
| Source | Markarian 209 |
| Author | Judy Schmidt from USA |
Licensing
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
|
This image was originally posted to Flickr by geckzilla at https://flickr.com/photos/54209675@N00/35902275404. It was reviewed on 22 August 2017 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:11, 22 August 2017 | | 3,993 × 2,313 (45.92 MB) | Fabian RRRR | =={{int:filedesc}}== {{Information |Description=Mrk 209 is a dwarf galaxy with a bit of star formation going on, and thus is said to be ''blue''. A few years back this one [https://www.spacetelescope.org/images/potw1450a/ was processed and released] by... |
File usage
The following page uses this file:
Global file usage
The following other wikis use this file:
- Usage on de.wikipedia.org
- Usage on ru.wikipedia.org
