Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astronomy.com/magazine/ask-astro/2008/07/how-do-astrophysicists-measure-a-black-holes-mass
Дата изменения: Unknown
Дата индексирования: Sun Apr 10 12:57:44 2016
Кодировка: ISO8859-5
Поисковые слова: п п п п п п п п

How do astrophysicists measure a black hole's mass? | Astronomy.com

Customer Service

Tonight's Sky

Sun

RISEт??

SETт??

Sun

Moon

т??

PHASEт??

DISKт??

Mercury

RISEт??

SETт??

Mercury

т??

Venus

т??

Venus

т??

Mars

RISEт??

SETт??

Mars

т??

Jupiter

т??

Jupiter

т??

Saturn

т??

Saturn

т??

Tonight's Sky т?? Change location

City/place name

US state, Canadian province, or country

OR

US ZIP code

Searching...

Tonight's Sky т?? Select location

Tonight's Sky т?? Enter coordinates

Latitude: ТА '

Longitude: ТА '

UTC Offset:

Home
/
Magazine
/
Ask Astro
/
How do astrophysicists measure a black hole's mass?

FROM THE September 2008 ISSUE

How do astrophysicists measure a black hole's mass?

Kirt Bhatt, Columbia, Maryland

Published: Monday, July 28, 2008

If the black hole is sitting by itself out in space, you probably won't be able to see it at all, since all light falling on it will be absorbed. After all, that's why it's called "black." The way you learn anything about a black hole is by seeing how it interacts with ordinary matter and radiation around it.