BGU logo
BGU Physics Department logo
Admin

General Astrophysics 1

Course number: 203-1-1101
Semester: B 2019
3.5 points

Lecturer: Uri Keshet
Lecturer: Gideon Ilani

Messages

Course Plan

Office hours

Name Day Hours Building/Room E-mail
Prof. Uri Keshet Thursday 16:30-17:30 54/214 ukeshet@bgu.ac.il
Gideon Ilani Tuesday 11:00-12:00 54/317 gideoni@post.bgu.ac.il

Lecture/Tutorial

Group What? Name Day Hours Building/Room
1 Lecture Prof. Uri Keshet Tuesday 12:00-15:00 54/207
11 TA Gideon Ilani Wednesday 14:00-15:00 34/209

Class Exercises

# Published Topic Exercise Solution
1 01/03/2019 Thermo reminder
2 23/03/2017 Thermo reminder-cont.
3 02/04/2017 Cosmology - Friedman's equations
4 28/03/2018 FRW kinematics & Saha equation
5 18/04/2018 Hydrodynamics
6 26/04/2019 Hydrodynamics - linearization and instabilities
7 02/05/2019 Sphericall collapse
8 17/05/2019 Virial theorem and hydrostatic equilibrium
9 23/05/2019 Bremsstrahlung radiation
10 11/06/2019 Binary system, equations of state
11 13/06/2019 Lane-Emden equation & Stability of strar's structure
12 20/06/2019 Supernova explosion Sedov-Taylor

Home Exercises:

# Published Topic Exercise Solution Deadline upload
1 01/03/2019 Thermo reminder 16/03/2019
2 10/03/2019 Cosmology intro 26/03/2019
3 17/03/2019 Cosmology - Friedmann's equations and thermal history 02/04/2019
4 25/03/2019 Cosmology - FRW metric 13/04/2019
5 04/04/2019 Cosmology leftovers & Hydrodynamics 28/04/2019
6 18/04/2019 Hydrodynamic stability and linearization 11/05/2019
7 06/05/2019 CMB power spectrum & MOND 20/05/2019
8 15/05/2019 Virial theorem, Dark matter and shock waves 29/05/2019
9 28/05/2019 Halo mass function, Bremsstrahlung radiation 10/06/2019
10 11/06/2019 Galaxies Star clusters and the liquid drop model 03/07/2019

Course Policy

Additional information

 



Lec Topic Class notes Links & extra
1 Intro, basic concepts Lec 1 Scales, Astronomy intro
2 Olbers paradox, Hubble law, Newtonian cosmology Lec 2 Why is the night dark? How large is the Universe?
3 Thermal history of the Universe, equality, recombination, decoupling, CMB Lec 3 Universe history (in under 3 minutes), How large is the Universe
4 Freezeout, Universe fate, curvature, RW metric, topology, RW kinematics Lec 4 Geometry and topology
5 The electromagnetic spectrum, structure formation intro, hydrodynamic instabilities, Jeans instability 1, hydrodynamic equations 1 Lec 5 Fluid mechanics series
 in particular instabilities
6 Hydrodynamic equations 2, Jeans instability 2, structure collapse and fragmentation Lec 6 APOD , HEPOW
7 Fragmentation, Jeans instability in an expanding Universe, CMB fluctuations Lec 7 Laniakea
8 Dark matter, power spectrum, virial theorem, virialization Lec 8 Dark components, matter
9 Virialization in a spherical body, collisionality, spherical collapse, shocks, shock acceleration, hydrostatic equilibrium Lec 9 Bullet hydro 1,hydro 2
Cosmic-rays
10 Fermi acceleration, LSS, edge of LSS, radiative processes Lec 10 Bremsstrahlung
Galaxy groups
11 Thermal radiation, galaxies, stellar associations, Planck units, the shrinking halo Lec 11 Life and death of a star
12 Stellar birth, thermal evolution, black and brown dwarfs, atoms, nuclei, fusion, secular stability Lec 12 PTable
13 Feynman diagrams, nuclear liquid drop model, p-p chain, photon leakage, main sequence stars Lec 13 Fusion in stars
14 Stellar evolution, giants, evolved stars, white dwarfs, neutron stars, black holes, supernovae, GRBs, dynamical instability Lec 14 Stellar death

 

 

Exams

 

 

 

inarray(2) { [0]=> string(67) "https://physweb.bgu.ac.il/COURSES/Admin/Admin_segel/Admin.php?sel=6" [1]=> string(23) "folder=Astronomy1/2019B" } inarray(2) { [0]=> string(67) "https://physweb.bgu.ac.il/COURSES/Admin/Admin_segel/Admin.php?sel=6" [1]=> string(23) "folder=Astronomy1/2019B" } inarray(2) { [0]=> string(67) "https://physweb.bgu.ac.il/COURSES/Admin/Admin_segel/Admin.php?sel=6" [1]=> string(23) "folder=Astronomy1/2019B" } inarray(2) { [0]=> string(67) "https://physweb.bgu.ac.il/COURSES/Admin/Admin_segel/Admin.php?sel=6" [1]=> string(23) "folder=Astronomy1/2019B" } inarray(2) { [0]=> string(67) "https://physweb.bgu.ac.il/COURSES/Admin/Admin_segel/Admin.php?sel=6" [1]=> string(23) "folder=Astronomy1/2019B" } inarray(2) { [0]=> string(67) "https://physweb.bgu.ac.il/COURSES/Admin/Admin_segel/Admin.php?sel=6" [1]=> string(23) "folder=Astronomy1/2019B" }