A speaker's voice, telling us what we are seeing, would have been nice.
Let me try to unravel it.
The first seven seconds of the video shows us the black hole accreting matter from the hot (yellow!!
![Facepalm :facepalm:](./images/smilies/facepalm.gif)
) star.
From 8 to 15 seconds into the video we see the SS 433 system from above (I think??), and we see its jet being bent into a spiral shape. I think????
16 seconds into the movie, we see what is clearly two jets on opposite sides of the black hole. The jets move more or less straight, but
irregularities in the surrounding nebula make the jets form "helix shapes" as they speed away. Couldn't find a helix shape, but these "bent out of shape arrows" will have to do. ⬿ ⤳
Or, wait! Maybe the helix shape of the jets is not due to irregularities in the nebula, but to
the precession of the SS 433 system itself!
24 seconds into the movie we get a view of the micro-quasar from a distance, and we really see those helix-shaped jets. At the same time we see the vicinity of the black hole flickering like crazy. Is that the accretion disk flickering? Or the innermost parts of the jets?
32 seconds into the movie we see a blue nebula (I know, I know, it's false color) and a normal-looking star in the middle of it (and never mind the pink color of that star). Near the top of the blue cloud is a bright light that beats like a heartbeat, pretty slowly, and grows very much brighter or fainter in time with the beats.
And then, stop. The end.
Also check out the link that bystander provided us with,
viewtopic.php?t=40907. It takes us to an item of breaking science news about SS 433 and a mysterious gamma-ray emitting source, Fermi J1913+0515, inside the nebula W50 that SS 433 and Fermi J1913+0515 are both located in.
Take a look at the picture at right. It shows us SS 433, with its wiggly jets, and another source in the lower right part of the image. That source is called Fermi J1913+0515. and it emits gamma rays in time with the pulsating of SS 433, even though Fermi J1913+0515 is located some 100 light-years away from the micro quasar.
Is the gamma-ray emitting source, Fermi J1913+0515, a part of the video that is today's APOD? Is the bright "star" - maybe not a star? - that we saw not too far from SS 433 in the blue cloud in the last part of the video really Fermi J1913+0515? Don't ask me, I'm still scratching my head.
Ann
A speaker's voice, telling us what we are seeing, would have been nice.
Let me try to unravel it. [b][color=#0040FF]The first seven seconds[/color][/b] of the video shows us the black hole accreting matter from the hot (yellow!! :facepalm:) star.
[b][color=#0040FF]From 8 to 15 seconds[/color][/b] into the video we see the SS 433 system from above (I think??), and we see its jet being bent into a spiral shape. I think????
[b][color=#0040FF]16 seconds into the movie[/color][/b], we see what is clearly two jets on opposite sides of the black hole. The jets move more or less straight, but [s]irregularities in the surrounding nebula make the jets form "helix shapes"[/s] as they speed away. Couldn't find a helix shape, but these "bent out of shape arrows" will have to do. ⬿ ⤳
Or, wait! Maybe the helix shape of the jets is not due to irregularities in the nebula, but to [url=https://www.youtube.com/watch?v=h2k4TRomUB8]the precession[/url] of the SS 433 system itself!
[b][color=#0040FF]24 seconds into the movie[/color][/b] we get a view of the micro-quasar from a distance, and we really see those helix-shaped jets. At the same time we see the vicinity of the black hole flickering like crazy. Is that the accretion disk flickering? Or the innermost parts of the jets?
[b][color=#0040FF]32 seconds into the movie[/color][/b] we see a blue nebula (I know, I know, it's false color) and a normal-looking star in the middle of it (and never mind the pink color of that star). Near the top of the blue cloud is a bright light that beats like a heartbeat, pretty slowly, and grows very much brighter or fainter in time with the beats.
And then, stop. The end.
[float=right][img3="An artistic view of SS 433 and Fermi J1913+0515 within W50 nebula is shown. Image Credit: DESY, Science Communication Lab"]https://www.desy.de/e409/e116959/e119238/media/8557/Final_Rendering_landscape_thumbnail.jpg[/img3][/float]
Also check out the link that bystander provided us with, https://asterisk.apod.com/viewtopic.php?t=40907. It takes us to an item of breaking science news about SS 433 and a mysterious gamma-ray emitting source, Fermi J1913+0515, inside the nebula W50 that SS 433 and Fermi J1913+0515 are both located in.
Take a look at the picture at right. It shows us SS 433, with its wiggly jets, and another source in the lower right part of the image. That source is called Fermi J1913+0515. and it emits gamma rays in time with the pulsating of SS 433, even though Fermi J1913+0515 is located some 100 light-years away from the micro quasar.
Is the gamma-ray emitting source, Fermi J1913+0515, a part of the video that is today's APOD? Is the bright "star" - maybe not a star? - that we saw not too far from SS 433 in the blue cloud in the last part of the video really Fermi J1913+0515? Don't ask me, I'm still scratching my head.
Ann