Recent content by fishlens

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    How Does Eddington Luminosity Limit Black Hole Mass Accretion Rates?

    The Eddington luminosity gives a limit on the mass accretion rate of the black hole and therefore of the mass of the black hole. L_edd = 13*10^38 M/M_sun [erg s-1]. When I calculate from this I get that the maximum mass is M = 10^(-8)M_sun... which is impossible. Any ideas?
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    Measuring the Transverse Velocity of a Galaxy

    Hi, thanks for the reply @m Thanks for the reply! Yes, I assumed that it was the time in years. Though, I am not sure if we should take the time span to be the whole time difference between mid 1977 to mid 1980. Why should we do this? I am confused about this. Also, are we not supposed to...
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    Measuring the Transverse Velocity of a Galaxy

    See the attached figure. I understand that we look for the apparent transverse velocity v , for example through v = d/t (d - distance, t - time). The distance to the galactic nucleus is known as D. Though I am not sure how to read off the time from this figure.
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