Classroom Aid - PRIMER

this image shows the environment containing the Galaxy system zs7 from the James web Space Telescope primer program as seen by web's near infrared camera recent Studies have found a large number of active Galactic nuclei AGN for short associated with moderately massive black holes with red shifts greater than five new research using web spectrographic capabilities has found of an ongoing merger of two galaxies along with their massive black holes much further away than that the program team found Galaxy zs7 along with very dense High Velocity gas in the vicinity of a black hole as well as hot and highly ionized gas illuminated by the energetic radiation typically produced by black hole accretion discs the Galaxy and its black holes have a red shift of 7.15 light from this galaxy took 28.9 billion years to reach us the team was able to spatially separate the two black holes and determined that one of the two has a mass that is 50 million times the mass of the Sun the mass of the other one is likely similar although it is harder to measure because this second black hole is surrounded by dense gas one of the ways to detect a black hole is to analyze the radiation created by their accretion discs in this case web spectrograph focused on the emission lines of hydrogen and oxygen in this image ionized hydrogen emission is orange and the doubly ionized oxygen emission is dark red both of these Spectra presented a double Peak feature this double Peak is caused by the rotation of the accretion disc as the disc rotates light from the portion of the disc rotating toward us is shifted toward the blue SPC spum while light on the portion of the disc rotating away from us is red shifted this finding may be relevant for estimates of the rate and properties of gravitational wave signals from the early universe that should be detectable by Future observatories like Lisa