Our galaxy's black hole not as sleepy as thought: astronomers

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helicon United States of America
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Our galaxy's black hole not as sleepy as thought: astronomers

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Post by helicon »

https://phys.org/news/2023-06-galaxy-bl ... ought.html
-Michael
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messier 111 Canada
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Re: Our galaxy's black hole not as sleepy as thought: astronomers

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Post by messier 111 »

thx .
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Re: Our galaxy's black hole not as sleepy as thought: astronomers

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Post by Michael131313 »

Thanks Michael. But I sm confused or I am missing something. If the BH is 27000 ly away how can we detect x-rays from only 200 years ago?
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Re: Our galaxy's black hole not as sleepy as thought: astronomers

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Post by helicon »

I'm assuming @Michael131313 that this was left opaque in the article. It would seem that the "200 year" event was in fact 27.000 years ago, just that it was only detected as if it were 200 years ago in our space time. Sort of like if Betelgeuse blew up and we witnessed the supernova today it actually would have occurred hundreds of years ago...
-Michael
Refractors: ES AR152 f/6.5 Achromat on Twilight II, Celestron 102mm XLT f/9.8 on Celestron Heavy Duty Alt Az mount, KOWA 90mm spotting scope
Binoculars: Celestron SkyMaster 15x70, Bushnell 10x50
Eyepieces: Various, GSO Superview, 9mm Plossl, Celestron 25mm Plossl
Camera: ZWO ASI 120
Naked Eye: Two Eyeballs
Latitude: 48.7229° N
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Michael131313 Mexico
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Re: Our galaxy's black hole not as sleepy as thought: astronomers

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Post by Michael131313 »

Thanks very much for the clarification. I appreciate it.
ES AR 102 102mm, f/6.5, ES 254mm f/5 DOB, Obie 10x50, GSO SV 30mm, ES 68° 20mm, ES 82° 14mm, 11mm, 8.8 mm, 6.8mm, 4.7mm. Twilight 1 mount.
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