M81/M82 Ultra deep field…

M81-M82-SN2014J_AvdHoeven_NFleming_MvanDoorn highres-v2-stretched-annotated

This image is a continuation of an image I made in 2014 of the M81/82 galaxy group. I made the images and found signals of integrated flux nebula surrounding the galaxies. Soon after that I got in touch with Neil Fleming who had a splendid image of the IFN in this region on his website and a fellow astrophotographer, Michael van Doorn, who had imaged the galaxies using his hyperstar setup.

We decided to combine the data and create a deep field of this region. The lower magnitude visible is around mag. +24 in this image!

Because of the long period of bad weather I decided to do some reprocessing on previously made images and decided to see if I could get even more out of this image.

I think the result is astonishing. As far as I have found this is the deepest image of this region that I could find on the internet. The IFN really stands out very clearly and it’s nice to see details like Arp’s loop at M81 really jumping out to the image….

Image details are visible in the image.


2 Responses to M81/M82 Ultra deep field…

  • Jürgen Beisser

    Hello André,
    In fact this extremely beautiful image seems to be the deepest of that region. I found it while looking for photos which shoew the faint swirls around M 82, which are definitely not H-alpha. Last month I took quite a lot of LRGB and H-alpha frames of M 82 with my 8″ Newtonian, and I saw hints of one of those swirls (in your image shown as a sharp arc just to the left of M 82).
    I am not sure how much is known about what we call Galactic Cirrus or IFN. When looking at your image, it seems that this Cirrus could be connected to the galaxies and their satellites. At least we see that in the proximity of M 81 and M 82. Could that mean that this stuff is rather Extragalactic / Intergalactic Cirrus rather than Galactic Cirrus?

    Best regards and clear skies

    • Andre van der Hoeven

      Dear Jürgen,

      Just saw your remark now, so sorry for the late reply. I really don’t dare to say. I’m sure there must be some literature about this. It is something to dive in sometime in the near future 🙂 It looks like being connected indeed, but it could also be looking like this because of the light of galaxies highlighting certain parts.

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