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Old 25-10-2023, 03:26 PM
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rmuhlack (Richard)
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Join Date: Nov 2011
Location: Strathalbyn, SA
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NGC 1097 with jets

NGC1097 is a barred spiral galaxy in the constellation Fornax, about 45 million light years distant.

NGC1097 is also a Seyfert galaxy - with a quasar like nuclei with very high surface brightness. This particular galaxy also has four optical jets that emanate from that nucleus. The largest of these jets was studied way back in 1984 by Carter, Allen and Malin (yes, that Malin) using the Anglo-Australian Telescope. They measured the surface brightness of the broad "dog-leg jet" at 26.95 mag arcsec^-2 at 450nm, and 26.4 mag arcsec^-2 at 700nm. Remarkably, these faint features can now be readily detected using humble backyard amateur equipment.

My rendition of this target is comprised of 185x3min sub exposures captured across 10-17th Oct 2023 using a Sharpstar 13028HNT, QHY533C with Optolong UV-IR filter, and HEQ5 mount. I have included the full field of view, a closer crop (plus an inverted version), and for lols a comparison between my image and that of the AAT.

Astrobin version here: https://www.astrobin.com/58z57h/

Ref: Carter, D., Allen, D. A., & Malin, D. F. (1984). The jets in NGC 1097. Monthly Notices of the Royal Astronomical Society, 211(3), 707-712. https://academic.oup.com/mnras/article/211/3/707/981522
Attached Thumbnails
Click for full-size image (ngc1097 process 2 3x downsample iis.jpg)
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Click for full-size image (ngc1097 process 2 crop iis.jpg)
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Click for full-size image (ngc1097 process 1 crop invert iis.jpg)
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Click for full-size image (ngc1097 process 1 AAT comparison.JPG)
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Last edited by rmuhlack; 25-10-2023 at 07:41 PM.
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