astr 610 theory of galaxy formation lecture 1 - department of

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Frank van den Bosch Yale University, Fall 2020 ASTR 610 Theory of Galaxy Formation Lecture 1

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Page 1: ASTR 610 Theory of Galaxy Formation Lecture 1 - Department of

Frank van den Bosch Yale University, Fall 2020

ASTR 610 Theory of Galaxy Formation

Lecture 1

Page 2: ASTR 610 Theory of Galaxy Formation Lecture 1 - Department of

Important Information

the halo bias function

Course Website: http:/campuspress.yale.edu/astro610/

Instructor: Prof. Frank van den Bosch (Office: 52HH#320) [email protected]

Grading: 40% Final Exam (oral) 30% Term Paper & Presentation (topic picked in class) 30% Problem Sets

Lecture Hours: Tu-Th 9.00-10.15am [online via zoom]

Textbook: Galaxy Formation & Evolution Mo, van den Bosch & White (hereafter MBW) http://www.astro.yale.edu/vdbosch/book.html

Syllabus: available on course website & canvas

Lecture Notes: will be made available on course website

ASTR 610: Theory of Galaxy Formation © Frank van den Bosch, Yale University

Page 3: ASTR 610 Theory of Galaxy Formation Lecture 1 - Department of

the halo bias function

Format: 24 lectures (weeks 1-12; see lecture notes & MBW) 2 classes with student presentations (week 14)

What I expect from you: read MBW in preparation of lectures (see syllabus) participate actively in class (ask questions) hand in problem sets on time term paper (±8-10 pages on topic of current interest) presentation in class (=online) on term paper oral exam (1 hour, during exam period)

My goal for you: to teach you the physics related to galaxy formation to teach you basic concepts & relevant nomenclature to prepare you for research in extra-galactic astrophysics

Requirements: graduate student in physics or astronomyfamiliarity with astronomy nomenclature (magn, Mpc, H0)basic knowledge of extra-galactic astronomy (read chapter 2 of MBW)

ASTR 610: Theory of Galaxy Formation © Frank van den Bosch, Yale University

The Course

Page 4: ASTR 610 Theory of Galaxy Formation Lecture 1 - Department of

the halo bias function

Good additional source of information.Somewhat less advanced than MBW.Does not cover the gastrophysical processesof galaxy formation (cooling, star formation feedback) in any detail.

One of the best graduate textbooks on cosmology.Excellent coverage of Newtonian perturbationtheory. Does not cover galaxy formation in any detail, though...

ASTR 610: Theory of Galaxy Formation © Frank van den Bosch, Yale University

Additional Recommended Textbooks

Page 5: ASTR 610 Theory of Galaxy Formation Lecture 1 - Department of

the halo bias function

Detailed coverage of structure formationin the linear regime with superb treatment ofrelativistic perturbation theory. Nice chapter on likelihood analysis.Does not cover non-linear collapse, orgalaxy formation.

A classic! Excellent textbook on dynamics.Has detailed information on equilibria, collisions and interactions of collisionless systems.

ASTR 610: Theory of Galaxy Formation © Frank van den Bosch, Yale University

Additional Recommended Textbooks

Page 6: ASTR 610 Theory of Galaxy Formation Lecture 1 - Department of

the halo bias function

Brand new…an undergraduate companion to MBW. Excellent additional source of information,and very much up to date.

Good companion for MBW, with detailed treatment of reionization, first stars and 21cm cosmology.

ASTR 610: Theory of Galaxy Formation © Frank van den Bosch, Yale University

Additional Recommended Textbooks

Page 7: ASTR 610 Theory of Galaxy Formation Lecture 1 - Department of

the halo bias function

Preliminary SchedulePreliminary Schedule

ASTR 610: Theory of Galaxy Formation © Frank van den Bosch, Yale University

Page 8: ASTR 610 Theory of Galaxy Formation Lecture 1 - Department of

the halo bias function

Preliminary Schedule

ASTR 610: Theory of Galaxy Formation © Frank van den Bosch, Yale University

Page 9: ASTR 610 Theory of Galaxy Formation Lecture 1 - Department of

the halo bias function

Galaxy Formation in a Nutshell

ASTR 610: Theory of Galaxy Formation © Frank van den Bosch, Yale University

Page 10: ASTR 610 Theory of Galaxy Formation Lecture 1 - Department of

the halo bias function

λJbar

λHsuper-horizon scales

λMW

log[

scal

e]lo

g[δ M

W]

Jeans-stableJeans-unstable

radiation-dominated matter-dominated Λ

-3.5 -3

+3

0

-3

-6

non-

linea

rlin

ear

~200

stagnation

linear growth

non-linear collapse

virialization

baryonsdark matter

log[scale-factor]

teq tdec virializationshock

cool

ing

Silk damping

baryonicoscillations

M~1015 M⦿

-0.3 0

AC

M~1012 M⦿

M~106 M⦿

Silkdamping

Galaxy Formation in a Nutshell

ASTR 610: Theory of Galaxy Formation © Frank van den Bosch, Yale University

Page 11: ASTR 610 Theory of Galaxy Formation Lecture 1 - Department of

the halo bias function

λJbar

λHsuper-horizon scales

λMW

log[

scal

e]lo

g[δ M

W]

Jeans-stableJeans-unstable

radiation-dominated matter-dominated Λ

-3.5 -3

+3

0

-3

-6

non-

linea

rlin

ear

~200

stagnation

linear growth

non-linear collapse

virialization

baryonsdark matter

log[scale-factor]

teq tdec virializationshock

cool

ing

Silk damping

baryonicoscillations

M~1015 M⦿

-0.3 0

AC

M~1012 M⦿

M~106 M⦿

Silkdamping