M83 with halo

[Paul Haese]

I think I have finally collected enough data to show the extended halo of M83. I have found this particularly interesting because there appears to be a distinct corridor that is cleared by the galaxy on the right hand side from about 12 o'clock to 9 o'clock. At first I thought like a few others have mentioned that it might be flats related. However I have hunted around on the net a little and found several other images from prominent astrophotographers that show a similar thing. Unfortunately the tidal stream would take a look more integration to show up in the full frame (this being a crop to minimise field curvature).

I decided at one point to start collecting Ha data too. The galaxy is filled with Ha light. I have subsequently added Ha and further collected luminance. Total integration is now 23 hours. I think that is enough.

Click here (http://paulhaese.net/M83RC.html) for larger resolution image.

Feel free to comment.

[raymo]

Drop dead gorgeous.
raymo

[multiweb]

That is splendid! Love the details and colours in the spiral arms. Lots of background galaxies at 3 0'clock that I've never seen before. :thumbsup::thumbsup::thumbsup:

[astroron]

Bellissimo! Paul.:eyepop:
Cheers:thumbsup:

[Saturn%5]

As always Paul super work.:thumbsup:

[RickS]

Great result, Paul. Very deep and detailed.

[Ryderscope]

Thanks for posting a superb M83 Paul.
Beautiful.

[Rod771]

A very fine image, Paul! Love all the background galaxies you've revealed. :thumbsup:

[billdan]

Incredible detail Paul, awesome image, Good work mate.

Bill

[IanP]

picco-bello, (((german precision))) :thumbsup:

[alpal]

perfect image Paul,
I tried to find evidence elsewhere of some other structure in the halo.
All I could find was here:
https://ned.ipac.caltech.edu/level5/Sept05/Malin/Malin3.html

but it's not a nice large image.
It says


cheers
Allan

[gregbradley]

A magnificent image. That halo is really large.

Greg.

[Atmos]

That is a knock your socks off image Paul, just lovely :)

[RobF]

Wonderful image Paul. Really enjoyed swimming around in this one....

[Somnium]

really wonderful image Paul, now if you could just stop stealing data you could have one of your very own ;) JK

in all honesty, that has lifted the bar on M83 images, well done

[Stevec35]

A sublime M83 Paul. Enough said.

Steve

[troypiggo]

Yep. A standout M83. Well done.

[Placidus]

Magnificent work, Paul. The halo is shown beautifully. The colour is superb. Detail right to the core.

The right-most of the two little galaxies at 10 o'clock shows very faint outer spiral arms as a distant circle. Trish and I had seen that in our M83, but it is clearer in yours.

Bravo.

[marc4darkskies]

A lovely M83 Paul! :thumbsup::thumbsup: My tastes would make me lessen the saturation though - just a little bit.

Cheers, Marcus

[graham.hobart]

A real monster of a galaxy and a worthy picture Paul. Looks good enough to eat!!
The small BG galaxies at 9 o clock- are they related in anyway to M83? If so how haven't they been sucked into that monster's gravity well?
And if they are true background, would it be possible to detect gravitational lensing on them from M83? (just thinking out loud so may be totally barking up the wrong light pole again)
Anyway - another classic- extremely well done.
Graz:thumbsup:

[Paul Haese]

Thanks everyone for the comments. Much appreciated.



Thanks Allan. I think I can see extensions in the halo of the actual arms. It might well be averted imagination but perhaps there is even more dim structure to be collect and found at some point.




LOL, thanks Aidan. I still think Eric's image is slightly sharper than mine, especially when you scale it down. It's been interesting to say the least.



Agreed and done.



Thanks Graham. I don't think those galaxies are very close. The magnitude is stated as 12.2 and 16.16. That would make them much more distant given that they look like spirals too. I have no idea if they are being lens by M83. Perhaps someone in the know could help.

[Andy01]

Absolutely spectacular Paul, a benchmark image for that subject :thumbsup:

[Slawomir]

Echoing others - a spectacular image Paul and to me it is a winner!

I really enjoyed appreciating fine details in the galaxy and counting galaxies in the background...but then I spotted...I hope you do not mind - maybe it is just my screen, but there seem to processing artefacts (small brown blobs) visible in some parts of the spiral arms :question: :scared3:

[rustigsmed]

very very nice Paul, awesome colour and I like how the Ha isn't blended in to being over powering.

cheers

russ

[Paul Haese]

Thanks Andy and Russell for your comments.



Thanks Suavi for you comments and critique. Hmm, I don't see any brown blobs on my screen or any other screen we have here. Can you indicate where about those blobs are located? The only thing I can think of is you are looking at some knots of dust and gas that are not well resolved by the limited resolution of the scope and seeing. Those areas appear a bit red/brown. :shrug:

[Slawomir]

I think you are right Paul :thumbsup: I have indicated the areas that look a bit different on my iPad. I hope you do not mind me pointing that out :hi:

[Paul Haese]

Yeah I figured this is what you meant. I that is a limit of resolution really. It just goes to show nothing is perfect despite aiming for it. :)

[Shiraz]

Super image Paul - one of your best. The overall soft smooth effect, but with clear fine detail as well, is lovely to look at.

[Paul Haese]

Thanks for the kind words Ray. I'm always striving for better, though not always getting there.