Webb Telescope Reveals Black Hole’s Galactic Scar
- Here's a breakdown of the details from the provided text, focusing on the key findings and details:
- * A massive "contrail" - a faint, linear tail of gas and dust - within the spiral galaxy NGC 3627.
- * Researchers believe a massive, compact object (likely a black hole, but potentially the nucleus of a dwarf galaxy) created the contrail.
Here’s a breakdown of the details from the provided text, focusing on the key findings and details:
What was discovered?
* A massive “contrail” – a faint, linear tail of gas and dust – within the spiral galaxy NGC 3627. This contrail is exceptionally long, stretching 20,000 light-years (one-fifth the width of the Milky Way).
What caused the contrail?
* Researchers believe a massive, compact object (likely a black hole, but potentially the nucleus of a dwarf galaxy) created the contrail.
* The object is estimated to have a mass of 10 million times that of our Sun.
* It was traveling at an incredibly high speed: 186 miles per second (300 kilometers per second),exceeding the speed of the Parker Solar Probe.
* As the object moved through the galactic disk, it squeezed out gas, leaving the contrail as a trace of its passage.
When did this happen?
* The contrail is estimated to have formed around 20 million years ago, which is recent in astronomical terms.
How did they figure this out?
* The discovery was based on observations and a theoretical model developed in 2021.
* The turbulence within the contrail supports the idea that it was created by a fast-moving,massive object.
* The features of the contrail allowed researchers to estimate the object’s mass and speed.
Source:
* The research is available on arXiv: https://arxiv.org/abs/2509.20832
* The research was published in Monthly Notices of the Royal Astronomical Society: http://dx.doi.org/10.1093/mnras/stab735