Globular cluster ejected from M87

AI Thread Summary
High Velocity Globular Cluster One (HVGC-1) is the first globular cluster identified as being ejected by the interaction of two massive black holes, with a radial velocity of less than -1000 km/s. The coordinates for HVGC-1 are RA 187.72791°, DEC +12.68295°, and it can be visualized using tools from Galaxy Zoo. An image showing HVGC-1's distance from M87, including M87's jet, was shared, highlighting the cluster's unique position. The reasons behind HVGC-1's escape from M87 and the Virgo cluster remain uncertain, with speculation about its ejection linked to M87's historical black hole interactions. The discussion also corrected the globular cluster's alternate name from H74808 to H70848.
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In preparing a post for the globular cluster thread, I found reference to "High Velocity Globular Cluster One, or HVGC-1. This is the first globular cluster discovered to have been ejected by the interaction of two massive black holes.
http://hvgc-1/
A Globular Cluster Toward M87 with a Radial Velocity < -1000 km/s: The First Hypervelocity Cluster

I couldn't find a real image of HCGC-1 and M87 together, so I went and got one, and wanted to share it with all of you..

The location of HCGC-1 is RA 187.72791°, DEC +12.68295°.
Using the tools provided by Galaxy Zoo, and specifically at http://skyserver.sdss.org/dr12/en/tools/chart/navi.aspx
plug in the coordinates and you get the hit.
Notice the small image to the right. Click on "Explore" which is underneath it.
Then look at the far left column and click on "SIMBAD". Here you will see that this is the globular cluster we are after, known by its other name, H74808.
Use the back arrow key (top left) and then click on the image.
You can scale out by clicking on the "minus" sign, and soon you bring M87 into the picture.

And here it is. The yellow arrow points to M87's famous jet.
M87 and HVGC-1.jpg


The explanation for why the globular cluster is escaping M87, and even the Virgo cluster, is not for sure.

In any case, this image shows how far away HVGC-1 is from M87. And we can get this image using tools from the Galaxy Zoo. I hope you like it!
 
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liometopum said:
The explanation for why the globular cluster is escaping M87, and even the Virgo cluster, is not for sure.
Any ideas on this?
 
liometopum said:
In preparing a post for the globular cluster thread, I found reference to "High Velocity Globular Cluster One, or HVGC-1. This is the first globular cluster discovered to have been ejected by the interaction of two massive black holes.
http://hvgc-1/
A Globular Cluster Toward M87 with a Radial Velocity < -1000 km/s: The First Hypervelocity Cluster

I couldn't find a real image of HCGC-1 and M87 together, so I went and got one, and wanted to share it with all of you..

The location of HCGC-1 is RA 187.72791°, DEC +12.68295°.
Using the tools provided by Galaxy Zoo, and specifically at http://skyserver.sdss.org/dr12/en/tools/chart/navi.aspx
plug in the coordinates and you get the hit.
Notice the small image to the right. Click on "Explore" which is underneath it.
Then look at the far left column and click on "SIMBAD". Here you will see that this is the globular cluster we are after, known by its other name, H74808.
Use the back arrow key (top left) and then click on the image.
You can scale out by clicking on the "minus" sign, and soon you bring M87 into the picture.

And here it is. The yellow arrow points to M87's famous jet.View attachment 79639

The explanation for why the globular cluster is escaping M87, and even the Virgo cluster, is not for sure.

In any case, this image shows how far away HVGC-1 is from M87. And we can get this image using tools from the Galaxy Zoo. I hope you like it!
thanks for this terrific post. I saw the that you wrote HVGC-1's other name as H74808 it shouldve been H70848. thanks again
 
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