SEARCH
You are in browse mode. You must login to use MEMORY

   Log in to start

level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
What is the equation for: Effinacy of accretionGM/Rc^2
Eddington luminosity for NS and WDGMMacc/R
Absorb fraction of radiationmk/4pir^2
Radiation forcemk/4pi^2 *L/c
Eddington luminosty without accretionGM4pic/k
Eddington luminosity with efficentynu*Macc*c^2
Eddington mass with luminosityLedd/c^2*nu
Eddington mass without luminosity4piGM/kcnu
Effective temperature(L/4piSigmasbR^2)^0.25
Accretion rate for wind fed accretionMomega(GM/a)^2*Vomage^-4
Wind fed capture radius2GM/Vomage^2
Energy from accretion diskGM/2R
Luminosity of diskGM/2R*Macc
Luminosity of disk with Luminosity AcrretionLdisk=0.5Lacc
Temperture of accretion disk(3GMMacc/8pir^3sigmasb)^0.25*(1-(R/r)^0.5)^0.25
Schwarzchild ISCO6GM/c^2
Kerr ISCOGM/c^2
Lamour formulaq^2a^2/16*pi^2*episolon*c^3 sin^2(0)
Spectrum of radiation2q^2(a)^2/3eplision*c^2
Thermal Bremsstrahlung6.8e^-51*Z^2*T^-0.5*ni*ne*gff*exp(-hc/kT)
Thermal Bremsstrahlung without frequencies1.4e^-40*Z^2*T*0.5*ni*ne*gff
Lamour radiusgamma*m*v/qB
Synchrontron power radiation1.25*sigmaT*c*Umag*gamma^2*beta^2
Synchrontron power radiation sigmaT6.65e-29
UmagB^2/2Mu
Betav/c
Sychrontron power radiation for all1.25*sigmaT*c*Umag*gamma^2*beta^2*ne
Doppler shiftgamma*v(1-beta*cos(0))
Aberrationcos(0)-beta/1-beta*cos(0)
Sychrontron pulse diraction(gamma^3*omegaB)^-1 or m/gamma^2*q*B
Sychrontron pulse diraction genereal(gamma^3*omegaB*sin(alpha))^-1
Total synchrotron powergamma^3*omegaB/2pi
Compton scattering frequancy and energygamma^2v or gamma^2E
Reconnection rate of solar flare (Mo)1/sqrt(Rm)
Sweet-Parker reconnection dissipation energy1/4pi *B^2*L^2*va*Mo*tauf
Reconnection rate of solar flares (shock)pi/8ln(Le/Delta) approx pi/8ln(Rm)
Fermi energyh^2/8me * (3Ne/piN)^2/3
Total Fermi energy (non rel)3/5*Ne*eplisionF
Total Fermi energy (rel)3/4*Ne*eplisionF
Total energy of a cool star (non rel)3/5*Ne*Efe*eplsion - 3/5 *GM^2/R
Radius if a WDxh^2/4me * (9xN/4pi^2)^2/3 * 1/GNmp^2
Total energy of star (rel)3/4*Ne*Efe*eplsion - 3/5 *GM^2/R
Fermi energy (rel)hc/2 * (3Ne/piV)^1/3
Chandrasekhar limit3/16 * (125pi)^0.5*x^2*(hc/2pi*G*mp^2)^1.5
Total energy of neutron (non rel)3/5 * Nn*epsilonF,n
Fermi energy of neutronh^2/8mn * (3Nn/piV)^2/3
Radius of a NSh^2/4G*N^1/3*mp^3 * (9/4pi^2)^2/3
Energy loss rate from pulasr rotation-4pi^2*I*T/T^3
Schwarzschild radius2GM/c^2
Surface gravity of a BH (k)c^4/4GM
First law of BH mechanicesdM = 1/8piG * kdA + OmegadJ + PhidQ
Hawking temperaturehbar*c^3/8pi*Kb*GM
Energy radiated from a BH-de/dt = 4pi*Rshw*sigma*Th^4
Free-fall time of collapse for SNesqrt(3/2piG*rho)
Gravitational wave frequency2*sqrt(G(M1+M2)/a^3)
Total time for a GW binary to merge5/256 * c^5/G^3 * a^4/M1M2(M1+M2)
Confinement radiusgamma*mc/q*B
Strong shock jump conditionsrhod/rhou = 4 or vu/vd = 4
Cherenkov Radiation: opening anglecos(0) = 1/n*beta
Homestake: Rate of neutrinos measured in detectorPhi*sigma*n*V
Probability of an oscillationsin^2(20)sin^2(1.27Delta*m^2*l/Ev)