'Brightness variations' diaporamas de présentation

The chemical composition of MCP star HD 25354

641 views • 45 slides

A nova is when nuclear reactions take place on the surface of a(n)

A nova is when nuclear reactions take place on the surface of a(n). n eutron star b lack hole w hite dwarf m ain sequence star. The region around a graviting object where all material is gravitationally bound is:. t he detached binary t he accretion disk t he Roche lobe

159 views • 6 slides

Long Term Monitoring of Active Galactic Nuclei with Bell Astrophysical Observatory

Long Term Monitoring of Active Galactic Nuclei with Bell Astrophysical Observatory. Whitney Wills, Dr. Michael Carini, Dr. David Barnaby, Ashley Atkerson, Wesley T. Ryle, Tala Monroe. Abstract

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Abstract

Light curves of UM673 A&B in 2003-2008. Since quasar components change their brightnesses in a similar way, the observed variations are most probably connected with the intrinsic quasar variability and can be used to measure the time delay between images of UM673.

114 views • 1 slides