This document discusses topics in observational cosmology and new observational instruments. It covers how massive stars live and die, type 1a supernovae as standard candles to measure distance, the redshift-distance relation, the accelerating expansion of the universe, the concordance LambdaCDM model, the CMB temperature map, baryon acoustic oscillations, large scale structure of the universe, integrated Sachs-Wolfe effect, CMB lensing, and problems with tensions in measurements of H0 and sigma8. It also outlines cosmological surveys like DES, DESI, Pau, and Euclid and describes the Dark Energy Spectroscopic Instrument.

1. KOZMOLOJİ’YE GIRIS
-BARCELONA KITAP BULUSMLARI
A presentation by Umut Emek Demirbozan for interested people

4. How massive stars live
Friedmann Equation(Matter Content-Expansion)

5. How stars die…….

7. Type 1 a Supernova

11. Standard candels to measure distance !

13. Redshift Kirmiziya kayma

14. Redshift…….

15. Hubble Diagram

16. Accelarating Universe !! Nobel Prize

25. Large Scale structure

26. Large Scale Structure of the
Universe

27. GÖZLEMSEL KOZMOLOJİ ve YENİ
NESİL GÖZLEM ARAÇLARI
A presentation by Umut Emek Demirbozan for interested
people

28. Concordence Cosmology LamdaCDM
Friedmann Equation(Matter Content-Expansion)

29. Redshift-Distance Relation
Friedmann Equation(Matter Content-Expansion)

30. Concordence Cosmology LamdaCDM
Accelarating Expansion !

31. Concordence Cosmology LamdaCDM
Accelarating Expansion !

33. CMB Temperature Map
Accelarating Expansion !

35. Baryon Acoustic Oscillations

39. Concordence Cosmology LamdaCDM
Accelarating Expansion !

40. Concordence Cosmology LamdaCDM
Accelarating Expansion !

41. Concordence Cosmology LamdaCDM
Accelarating Expansion !

42. Large Scale Structure of the
Universe

43. Integrated Sachs-Wolfe Effect (ISW)

44. CMB Lensing
Accelarating Expansion !

45. Integrated Sachs-Wolfe Effect (ISW)

46. Large Scale Structure of the
Universe

47. Problems with Cosmology (H0 tension)

48. Problems with Cosmology (H0 tension)
--H0 Tension
--Sigma8 tension
-General relativity vs Modified gravity (dark energy)

49. Problems with Cosmology (H0 tension)

50. Outline of the Paper
● Section 1 -Introduction
● Section 2 -Theory
● Section 3- N-body Simulations
● Section 4 -Compatibility with
Observations
● Section 5 -Discussion
● Section 6 -Summary

52. Cosmological Surveys
● Dark Energy Survey(DES)
● Dark Energy Spectroscopic Instrument (DESI) 3D Map of the Universe
● Pau(Photometric redshifts)
● Euclid

53. Dark Energy Spectroscopic Instrument

54. Dark Energy Spectroscopic Instrument

55. Spectroscopic Redshifts