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Course Detail

Course Name Astrophysics
Course Code 19PHY339
Program B. Tech. in Computer and Communication Engineering
Year Taught 2019


Unit 1

Historical introduction: Old Indian and western – astronomy – Aryabhatta, Tycho Brahe, Copernicus, Galileo – Olbers paradox – solar system – satellites, planets, comets, meteorites, asteroids.

Practical astronomy – telescopes and observations & techniques – constellations, celestial coordinates, ephemeris.

Celestial mechanics – Kepler’s laws – and derivations from Newton’s laws.

Sun: Structure and various layers, sunspots, flares, faculae, granules, limb darkening, solar wind and climate.

Unit 2

Stellar astronomy: H-R diagram, color-magnitude diagram – main sequence – stellar evolution – red giants, white dwarfs, neutron stars, black holes – accretion disc – Schwartzchild radius – stellar masses Saha–Boltzman equation – derivation and interpretation.

Variable stars: Cepheid, RR Lyrae and Mira type variables – Novae and Super novae. Binary and multiple star system – measurement of relative masses and velocities. Interstellar clouds – Nebulae.

Unit 3

Galactic astronomy: Distance measurement – red shifts and Hubble’s law – age of the universe, galaxies – morphology – Hubble’s classification – gravitational lens, active galactic nuclei (AGNs), pulsars, quasars.

Relativity: Special theory of relativity – super-luminal velocity – Minkowski space – introduction to general theory of relativity – space – time metric, geodesics, space-time curvature. Advance of perihelion of Mercury, gravitational lens.

Cosmology: Comic principles, big bang and big crunch – cosmic background radiation – Nucleo-synthesis – plank length and time, different cosmic models – inflationary, steady state. Variation of G. anthropic principle.



  • “Textbook of Astronomy and Astrophysics with elements of Cosmology”, V. B. Bhatia, Narosa publishing 2001.
  • William Marshall Smart, Robin Michael Green “On Spherical Astronomy“, (Editor) Carroll, Bradley W Cambridge University Press ,1977
  • Bradley W. Carroll and Dale A. Ostlie. “Introduction to modern Astrophysics” Addison-Wesley, 1996.
  • Bradley W. Carroll and Dale A. Ostlie, “An Introduction to Modern Astrophysics” Addison-Wesley Publishing Company,1996
  • ‘Stellar Astronomy’ by K. D Abhayankar.
  • ‘Solar Physics’ by K. D Abhayankar.

Evaluation Pattern

Assessment Internal External
Periodical 1 (P1) 15
Periodical 2 (P2) 15
*Continuous Assessment (CA) 20
End Semester 50
*CA – Can be Quizzes, Assignment, Projects, and Reports.


Course Outcomes

After completion of the course students should be able to

  • CO1: Get a broad knowledge of scientific and technical methods in astronomy and astrophysics.
  • CO2: Apply mathematical methods to solve problems in astrophysics.
  • CO3: Develop critical/logical thinking, scientific reasoning and skills in the area of modern astrophysics.

CO – PO Mapping

PO1 PO2 PO3 PO4 PO5 PO6 PO7 PO8 PO9 PO10 PO11 PO12 PSO1 PSO2
CO1 3 1
CO2 2 2
CO3 1 2

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