Recent content by goldsax

hi, studying BSc astronomy/physics 3rd year in the UK on part time basis. i am a senior cosmetic dentist by profession, so have limited exposure to what lectures are available around the country. any guidance please? thanks raj

as mbf said 'relative velocity' . comets can have either a prograde or retrograde orbit. so the approach speed of a retrograde is going to be pretty high... also taking into account keplers second(?) law ...the comet will be most likely at its perihelion when approaching the Sun and so will have...

orbits would be affected. the bigger the body the bigger the effect. the effects could lead orbital migration, differing orbital resonences etc.. so what can dictate the size of a body in the outer solar system? well if it was made within the solar system, the amount of gas and or rock the...

La Place hyposis... a large moleculer cloud, once it passes Jeans mass, starts to collapse due to gravity. this collapse, starts to cause a rotation , as more collapse occurs it spins faster and forms a disc( circumsteller disc/solar nebula). it is form this disc the mass(gas+dust) is...

this is an 'ice/frozen' satellite. so the geology is really cryo-geology. the ground will be methane dune, with methane rivers etc

thanks for the links...

came across the concept of Frame dragging. i cannot find if this phenomena also aids in addition to the conversation of angular momentum the formation of an accretion disk around neutron stars/black holes. cheers

If a black hole is a stellar structure that has collapsed on itself to a singularity does that mean it has no size? But is so defined by its mass and schwarzschild radius? Cheers

the study tries to give an explantion . it has been known for a while that the Eddington Limit(Le) can be exceeded for periods of time.. but recall that the Le is a hypthetical limit based on the presumption that all the material is ionized hydorgen and all the material is accreted uniformally.

there is also heat from radiogenic material ,although its conribution is small.

if we are talking about moon and earth. the moon was constructed of the accretion of fragments after a giant collision of the embryo Earth with another giant object. so if the moon was going to fall towards the Earth it would not have time to form in the first place. as to the present state of...

cannot post any pics i have due to copyright .. have a look at this link..good illustrations for the anatomy of AGN and different models http://astronomyonline.org/Cosmology/Galaxies.asp you will notice that the broad line region comes from close to the black hole where there is lots of...

cheers for that ... next module... relativistic physics...

thanks for the info.. its the same problem i am finding re get all info...the field is moving so quickly and floridly that within months there is further contribution.. cheers.

i am a 3rd year uni astronomy.. sorry about the vagueness.. i am interested in books that are exploring/introducing ideas re origin of space/time.. esp ideas that try and explain weather space time is emergent. cheers