Re:Milky Way’s Black Hole Just Flared, Growing 75 Times as B...
by mirimir on Tuesday August 13, 2019 @08:58PM
(#20691799)
I recall seeing reports about Chandra seeing X-ray echoes from gas clouds near Sgr. A[star]. Maybe hundreds of years ago, and 10^6 times brighter.
Do we have other data like that? How far back does our record of Sgr. A[star]'s light curve extend?
Also, I gather that Sgr. A[star]'s rotational axis isn't normal to the mean galactic plane. And I presume that the axis precesses. Does it ever point near enough to the Sun to cause damage?
Do we have other data like that? How far back does our record of Sgr. A[star]'s light curve extend?
Also, I gather that Sgr. A[star]'s rotational axis isn't normal to the mean galactic plane. And I presume that the axis precesses. Does it ever point near enough to the Sun to cause damage?
Edit: typo