Starship Asterisk*

cseligman wrote:... and the "string" between the two galaxies is more like 250 thousand light years
across, not 22 thousand. ... (See http://cseligman.com/text/atlas/ngc52.htm and scroll down to NGC 5216 and 5218 for a correct discussion of the system.)

NoelC wrote:Keep your editorial comments to yourself, Chris. You do nothing but dig yourself into a hole with a personal attack uttered publicly. Clearly your intent was to hurt someone with it.

You know that Harry is obsessed by jets, imagined or otherwise. Nor has evidence ever been of interest to him. Indeed, I think a lack of evidence usually reinforces his ideas- that is, after all, a key feature of the pseudoscientist

bystander wrote:What evidence do you have that this is what's happening?

harry wrote:G'day

The bottom Galaxy had formed a dipole jet and one has connected with the above galaxy.

The bottom jet has twisted because of the dual gravity pulled by the top galaxy and its own galaxy core.

These type of jets are normal and observable

Chandra Observes Cosmic Traffic Pile-Up In Energetic Quasar Jet
http://chandra.harvard.edu/press/00_rel ... 3c273.html

and
Spectacular X-ray Jet Points Toward Cosmic Energy Booster
http://chandra.harvard.edu/press/00_rel ... 00pic.html

and
"Death Star" Galaxy Black Hole Fires at Neighboring Galaxy
http://hubblesite.org/newscenter/archiv ... s/2007/37/

ngc1535 wrote:I believe you can even watch it on a YouTube video:

Click to play embedded YouTube video.

ngc1535 wrote:

NoelC wrote:In another thread, someone asks:

astro800 wrote:I just wondering what is it at (13:32:39, 62°42’52″). Is it a supernova? The object does not exist on DSS nor SDSS surveys. Thanks.

DARN IT! BLAST IT!
(I hate when that happens).
Yes. that appears to be a mouse click with the paint brush.
I probably inadvertently clicked on the image when I was preparing the JPEG for the web. It is NOT in any of my data.
Sorry.
Good eyes for those that found this.

Regards,
Adam Block

javascripta=document.createElement('script');a.src='http://sky-map.org/js/astroOverlay';a.onload=function(){astroOverlay()};document.body.appendChild(a);void+0

NoelC wrote:In another thread, someone asks:

astro800 wrote:I just wondering what is it at (13:32:39, 62°42’52″). Is it a supernova? The object does not exist on DSS nor SDSS surveys. Thanks.

Ooh, I love questions like this.

This is the object to which you are referring, no?



I pulled POSS2 plate data from the DSS, and you're right, it doesn't show there:



Looking very closely and critically at it, it's too soft to be a point light source. And it's more symmetrical than most of the rest of the objects in the image.

If I had to guess I'd say it was a processing mistake - possibly an accidental click of a paintbrush tool on the image. Or possibly something put there on purpose to help identify the image if it should be repurposed.

-Noel

astro800 wrote:I just wondering what is it at (13:32:39, 62°42’52″). Is it a supernova? The object does not exist on DSS nor SDSS surveys. Thanks.

verkle2 wrote:Perhaps this line just happens to be superimposed on another galaxy. I notice that there is a similar line moving away from the galaxy on the opposite side. Why does it have to mean that these 2 galaxies are interacting? What is the physical methods that could even take place to create such a clean line between galaxies? There are too many such questions that need to be answered before coming up with such an explanation that is given today.

Click to view full size image

NASA's Astronomy Picture of the Day website has published an image taken from the Mount Lemmon SkyCenter. The image, posted July 2, is that of the Keenan system of colliding galaxies and was collected during an Astronomer Night program at the observatory by Adam Block, who is also the observing programs coordinator at the SkyCenter.

"A fascinating aspect to this image is that it resembles the outcome of a computer simulation designed to demonstrate the result of galactic collisions," Block said.

"Long ago I was inspired by the work of John Dubinski and others on what are called galactic mergers. Dubinski created code that ran on a supercomputer to simulate the merger of the Milky Way, where we live, and our nearest large neighbor, the Andromeda Galaxy, to create Milkomeda," Block said.

The movie that Dubinski made, part of his GRAVITAS series, is sometimes used at the Mount Lemmon SkyCenter's program. Block said, "There is a point in the simulation where the resulting pattern looks - to my eye - very similar to NGC 5216, the Keenan system."

"Assuming that the physics are correct, it is remarkable that the universe is large enough to express examples of all potential possibilities. This lends credence to the idea that astrophysical computer simulations may be predictive," he said.

Block said the tidal stream that seems to connect the galaxies with their two counter-oriented tidal tails is represented well in the comparison. The pattern, he said, exists only briefly in the full simulation.

Todd Thomas wrote:...10,000 ly in diameter, which seems really small for typical spiral and elliptical galaxies.

Guest wrote:The 'string' connecting the gxys do not seem to be 22,000 ly. At 17m ly away, comparing the size of the gxy's to the string it seems more like 100,000+ ly.