ESO 510-G13. A warped galaxy.




Click on the image for a full resolution image


ESO 510-G13, located just above center of the lower left quarter, is one of many galaxies in this image. This edge-on galaxy stands up, because it has a warped central dust disk. This can be due to different factors, but the most probable is a recent collision with another galaxy, that has been absorbed in ESO 510-G13. Another possibility that has been proposed has been some kind of interaction that is possible in barred spirals. The dynamics of these warped disks is not very precisely known, but at least, it is known that they are not static. They “rebound” several times, but friction reduces their amplitude until the warp fades away, leaving a “flat” dust disk, like in Messier 104. Given its distance to us, 150 Million light years, its redshift is measurable: z=0.011571 (Simbad Database).


Our galaxy has been recently mapped for a 3D distribution of Cepheid stars and this map shows that the Milky Way is also somewhat warped.


A cropped image of the warped galaxy, compared with the same image but taken with the Hubble Telescope is shown below.





Left: image with CDK20″             Right: Image with Hubble Space telescope. Copyright NASA/ESA.


Additional Information


Name(s): ESO 510-G13

Type: Emission-line Galaxy

RA: 13h 55m 04.4s

Dec: -26º 46′ 50.5″

Constellation: Hydra

Size (arcmin): 1.9×1.3 arcmin

Magnitude: 13.4

Distance: 150 Mly


Date: 2019-05-21 to 2019-06-04

Location:, SSO near Coonabarabran, NSW Australia

Size (arcmin): 35×35 arcmin

Telescope: Planewave CDK 20” f/6.8

Camera: SBIG STX16803 (4096x4096pix)

Guiding: Astrodon MonsterMOAG off-axis guider

Total exposure: 17.25h (L: 8.5h; RGB: 8.75h)

Processing: CCDStack, Photoshop CC 2019 and PixInsight

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