Astronomers have gained a unique glimpse into the mysterious workings of a spiral galaxy, with new images from the Hubble Space Telescope revealing a trail of glowing gas billowing out from its nucleus.
Located 60 million light-years away in the Virgo galaxy cluster, NGC 4388 appears to be tilted at an extreme angle relative to our view, giving astronomers a nearly edge-on look at the galaxy's disk. But it's this unusual perspective that has revealed a feature not seen before - a plume of gas streaming out from the galaxy's nucleus towards the lower-right corner of the image.
So where did this outflow come from? The answer lies in the vast expanse of space between galaxies, which is home to hot wisps of gas called the intracluster medium. As NGC 4388 moves through the cluster, it plunges into this medium, causing pressure to build up and whisk away gas from within its disk.
The source of the energy that ionizes this gas cloud remains uncertain, but researchers suspect it may come from the galaxy's supermassive black hole at its center. The blazing radiation from a superheated disk around the black hole might be responsible for ionizing the closest gas to the galaxy, while shock waves could be ionizing filaments of gas farther out.
The new image, which incorporates data from several observing programs, has shed light on galaxies with active black holes at their centers. It shows that these galaxies are capable of producing some truly spectacular phenomena - and highlights the incredible advances being made in our understanding of these enigmatic objects.
Located 60 million light-years away in the Virgo galaxy cluster, NGC 4388 appears to be tilted at an extreme angle relative to our view, giving astronomers a nearly edge-on look at the galaxy's disk. But it's this unusual perspective that has revealed a feature not seen before - a plume of gas streaming out from the galaxy's nucleus towards the lower-right corner of the image.
So where did this outflow come from? The answer lies in the vast expanse of space between galaxies, which is home to hot wisps of gas called the intracluster medium. As NGC 4388 moves through the cluster, it plunges into this medium, causing pressure to build up and whisk away gas from within its disk.
The source of the energy that ionizes this gas cloud remains uncertain, but researchers suspect it may come from the galaxy's supermassive black hole at its center. The blazing radiation from a superheated disk around the black hole might be responsible for ionizing the closest gas to the galaxy, while shock waves could be ionizing filaments of gas farther out.
The new image, which incorporates data from several observing programs, has shed light on galaxies with active black holes at their centers. It shows that these galaxies are capable of producing some truly spectacular phenomena - and highlights the incredible advances being made in our understanding of these enigmatic objects.