| Lectures |
Assignments |
- Lecture 1-2: Discovery of the galaxies
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- Stars and our Galaxy (The Milky Way)
- Northern and Southern Night Sky
- All-sky Night Sky
- Center of the Milky Way
- Stars in Milky way(Infrared image)
- Multiwavelength Milky way
(from NASA website)
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- Discovery of other galaxies (1925)
- Nebulaes circa 1922
- First sketches of Spiral Nebulae M51 (1845)
- Shapley - Curtis "The Scale of the Universe" debate, 1920
- Small (SMC) and Large (LMC) Magellanic clouds
- Cepheids, Period-Luminosity relation Henrietta Leavitt
- Edwin Hubble (1889-1953)
- NGC6822 - first other galaxy and Andromeda M31
- Not all star nebulae are distant galaxies but
this one is
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- State of modern observations
- M51 now
- Faint Galaxy counts
- Hubble Deep Field
(HDF site with more information)
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- Lecture 3: Stellar Spectroscopy and Photometry.
- Photometric magnitudes. Photometric bands and colours.
- Planck BlackBody spectrum
is animated here.
- Spectral classification, its relation to temperature.
- Library of Stellar Spectra is here
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- Lecture 4: Stellar evolution
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- Main sequence:
- Coordinates
- Nearest stars
- Temperature-Luminosity relation
- Evolution:
- HR diagram for Globular Clusters data (see this research paper for details)
- Movies of evolutionary tracks
- And more detailed
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- Assignment #1, due Jan 25th
(html,pdf)
- Figure 1.17 for Problem 4
- Solutions
(html,pdf)
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- Lecture 5: Hubble classification of galaxies. Galaxies in the
Universe.
- Hubble Deep Field
(HDF site with more information)
- Hubble Ultra Deep Field
(HUDF NASA site)
- Messier catalogue of
110 objects.
Another link
- NGC (New General) catalogue
- Hubble classification:
examples 1, examples 2 (SDSS)
- Spectrum of a typical galaxy. Especially important are calcium (Ca), magnesium (Mg, 5178A) and sodium (Na, 5891A) absorption lines.
- Original Edwin Hubble Diagram
- HST Hubble Diagram
(HST Key Project Results on Hubble constant)
- Galaxy Cluster Abell 2218
(NASA site with more information)
- Local Universe in 3D (Dr. Mike Hudson, UWaterloo site)
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- Lecture 6: Photometry of galaxies. Surface birghtness, Schechter distribution of luminosities.
- Giant elliptical galaxy M87 (NGC4486)
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- Lecture 7: Our Galaxy, main ingredients
- Stars in Milky way(Infrared image)
- Multiwavelength Milky way
(from NASA website)
- Top "view' reconstruction of the Milky way (UCalgary group)
- and one more
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- Lecture 8: Mapping our Galaxy:
- Distances to nearby stars ( Hipparcos satellite)
- Stellar luminosity function
- Proper motions of stars from Hipparcos
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- Assignment #2, due Fri Feb 8th.
(html,pdf)
Problem #3 is eliminated from assignment #2 and moved to assignment #3
Note : In problem 2, in the question about a relation between the
total luminosity of the galaxy L_tot and the central surface brightness I(0), consider
the total luminosity as the sum over spectral classes S of the full
luminosities contributed by stars of type S separately, L_tot=sum_S L_tot(S).
Same for I(0), I(0)=sum_S I(0,S)
- Solutions
(html,pdf)
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- Lecture 9: Mapping our Galaxy:
- Spectroscopic and photometric parallaxes.
- Distances to stellar clusters.
- Pleiades open cluster
- M30 globular cluster
- Star clusters and more
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- Lecture 10: Mapping our galaxy.
- Photometric parallax, vertical structure of the galactic disk.
- Kinematic measures, distance to the Galactic Center
- Milky way in Infrared
- Galactic center
- Galactic center in radio
- Sagittarius A,B .. star cluster and molecular cloud
- Dr. E. Polehampton thesis
includes this
summary
of different estimates of the distance to the Galactic Center.
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- Lecture 11: Rotation curve. Galactic rotation
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- Lecture 12: Galactic rotation, Oorts constants
- Jan Oort's original (1927) paper
- Draft page of Oort's paper
- Graph of angles
- Solid body rotation curve
- V(R)=const rotation curve
- Constant Angular momentum
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- Lecture 13: Galactic Rotation, Tangent point method
- HI 21cm intensity
- HI 21cm intensity with a grid
- Our Galaxy rotation curve from tangent method
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- Assignment #3, due Mon Feb 25th
(html,pdf)
Assignment #3 has extra problem added. Deadline is moved to Monday Feb 25th.
- Reguired Figures for the new problem (pdf): Figure 1,Figure 2
- Solutions
(html,pdf)
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- Lecture 14:
- Rotation curves of other spiral galaxies
- Images of edge-on and face-on spirals
(Image credit - REU program/NOAO/AURA/NSF)
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- Lecture 15: Scattering of stars in strong (close) and weak encounters
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- Lecture 16: Scattering of stars, continued
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- Lecture 17: Motion in gravitational potential, escape velocity
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- Lecture 18: Stellar dynamics: Stellar orbits, Relaxation, Evaporation of star clusters,
Mass segregation in stellar clusters.
- Stellar Orbits
- x-tube
- z-tube
- boxy
- fish
- pretzel
- Violent relaxation, phase mixing
- Our Galaxy and M31 collision
- Establishing of Maxwell-Boltzman distribution by pairwise collisions
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- Lecture 19: Local group: Milky Way, Andromenda
(M31),
M33,
LMC,
SMC,
Magellanic stream ...
- Local Group description
- Local Group 3D positions,
rotated and
animated
- Local group members
- Magellanic Stream (in HI)
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- Midterm Exam.
Rules: open book, open notes. Solutions require
detailed explanation for a full mark.
Texbook and lecture formulas need not be derived, unless explicitly
requested. However the results
that appeared only in the assignments or during tutorials
can't be taken as given and must be rederived, if used.
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- Solutions
(html,pdf)
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- Lecture 20: Tidal effects on glubular clusters and
Milky Way sattelites, Jacobi Radius, Lagrange points
- Three body problem - Lagrange points
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- Assignment #4, due March 14th.
(html,pdf)
- Figure
(JPEG,Postscript)
- Solutions
(html,pdf)
There are no solution spider diagrams posted, Sorry
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- Lecture 21: Spiral Galaxies, correlations between the properties,
Tully-Fisher relation
- Sombrero Galaxy (NGC4594) - disk,buldge,dust
- More images of Sombrero Galaxy
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- Lecture 22. Spiral Structure
- Hubble Classification - tuning fork
- Hubble Classification examples
- Hubble Classification examples (From SDSS collaboration)
- Different Spirals
- Spiral arms at different wavelengths
- Multiwavelength M51 (Whirlpool)
- M51 (Whirlpool) in optical
- M51 HI versus optical
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- Lecture 23. Spiral Structure, continued
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- Lecture 24. Spiral Structure, Kinematic spirals
- Case Western collection of applets
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- Assignment #5, due April 4th
- Problems 5.10,5.11,5.12
Solutions
(html,pdf)
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| We are here
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- Lecture 25. Spiral Structure, continued
- Spirals in tidally perturbed disk
- Merger of the spiral galaxies
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- Lecture 26. Elliptical Galaxies, Photometry
- Hubble classification again
- Giant cD galaxy NGC1399 (in Fornax cluster)
- Giant galaxy M87 (in Virgo cluster)
- Giant cD galaxy in Abell 3558 cluster
- Giant E0 galaxy M87 (in Virgo cluster)
- Compact Elliptical M32 (in the local Group)
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- Assignment #6, due April 11th
Problems 6.5 and 6.7
Solutions
(html,pdf)
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- Lecture 27. Elliptical galaxies: Shape, oblateness, triaxiality.
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- Lecture 28. Correlations between global properties.
Faber-Jackson, Dn-sigma relations
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- Lecture 29. Elliptical galaxies: Boxiness-diskiness, rotation.
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- Final !
Date: TBA
Duration: 3 hours
Place: see BearTracks
Rules: open book
Solutions:
(html,pdf)
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Course based
on Sparke and Gallagher textbook at UColorado"
