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File:STScI-01H0MY22SC4HPS3SYE78B4EZ4F AdobeExpress.gif

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STScI-01H0MY22SC4HPS3SYE78B4EZ4F_AdobeExpress.gif (256 × 144 pixels, file size: 2.21 MB, MIME type: image/gif, looped, 191 frames, 15 s)

Summary

Description
English: This is a simulation of the motions of stars around a suspected black hole in the core of the globular cluster M4. It is based on the "HST Legacy Survey of Galactic Globular Clusters: Shedding UV Light on Their Populations and Formation,” which includes stellar clusters' internal kinematics. After the zoom into M4, the center of the cluster, where the suspected black hole resides, is highlighted by a red "X." The red circle has a radius of a little less than 1 light-year across. It is the sphere of influence of the putative intermediate-mass black hole. Estimated to be 800 solar masses, the black hole has an event horizon that is a little more than half the diameter of our moon. The sphere of influence of the black hole is the region where its gravitational potential dominates over the gravitational potential of the starfield. It is a region where stellar motions are significantly affected by the black hole's gravitational pull. Only Hubble's sharp resolution can plot this motion over more than a decade of observing. The fastest moving stars in this video are not in the cluster, but are much closer to us, in the foreground of Milky Way stars.
Date
Source https://hubblesite.org/contents/media/videos/2023/016/01H0MXKDAHT9BVFWXB61EEK4J6?news=true
Author NASA, ESA, Mattia Libralato (AURA/STScI for ESA)

Licensing

Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
Warnings:

Captions

Simulation of internal stellar motions on the globular cluster Messier 4.

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Date/TimeThumbnailDimensionsUserComment
current00:14, 2 June 2023Thumbnail for version as of 00:14, 2 June 2023256 × 144 (2.21 MB)EvitralUploaded a work by NASA, ESA, Mattia Libralato (AURA/STScI for ESA) from https://hubblesite.org/contents/media/videos/2023/016/01H0MXKDAHT9BVFWXB61EEK4J6?news=true with UploadWizard

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