Galaxy
Formation and Evolution| Galaxy
Formation and Evolution |
Theory > s.a. chaotic
systems; cosmic strings; dark
matter; fluids; phenomenology
of inflation.
* Criteria: A theory has to explain the blackbody nature and isotropy
of microwave background.
* Idea: 2008, It is believed
that galaxies were assembled via chaotic hierarchical mergers between massive
cold dark matter halos, in which baryonic
star forming matter was embedded; 2009, Some simulations indicate galaxies
primarily formed as a result of intensive cosmic streams of cold gas (mostly
hydrogen)
and not primarily from
galactic mergers.
* Primary mechanisms:
Protogalaxies can form from growth of primordial fluctuations, or aggregation
of material around cosmic string hoops or dark
matter; A protogalaxy forms a galaxy if the energy dissipation time
(by radiation) is smaller than the gravitational collapse time, otherwise it
is too hot
to collapse.
* Secondary mechanisms:
Triggered by shock waves from supernovas; Tidal interactions and mergers play
an important role in determining the kind
of
galaxy.
* Biasing: Characterized by the degenerate parameter combination 
= 
0.6/b, or just the linear bias parameter b, the ratio of the
fluctuation amplitudes of the galaxy and mass distributions.
@ Books: Binney & Tremaine 08.
@ Reviews: Ellis Nat-ap/98;
McGaugh ap/98-in;
Kauffmann & van den Bosch SA(02)jun; van den
Bergh PASP(02)ap;
Dekel ap/04-in
[scales]; Schombert ap/04-in;
Avila-Reese ap/06-ln;
van Dokkum & Quadri a0704-in
[evolution and environment]; Palous a0708-in;
Combes a0909-in.
@ First galaxies: Macchetto & Dickinson SA(97)may;
Baugh
& French pw(99)may;
Loeb ap/06-in;
Schaerer a0706-ln;
Greif et al AIP(08)-a0709;
Bromm et al Nat-a0905;
Greif PhD(09)-a0905.
@ Spiral: Athanassoula PRP(84), ap/02-in
[bars]; Efremov et al SPU(89); Friedli ap/99-in
[bars]; Silk ASS(03)ap/02-in;
Combes SA(05)oct; Stringer & Benson a0712-in;
Silk a0809-in.
@ Structure formation: Padmanabhan ap/95-in;
Brandenberger ap/95;
Hu & Eisenstein
PRD(99)ap/98;
Silk ap/04-in
[and dark matter].
@ Formation, mergers: Silk PT(87)apr;
Peebles & Silk Nat(90)jul;
Longair 98; Madau & Kuhlen ap/03-in
[first ones]; Gawiser ap/05-in;
Conselice a0706-in
[massive galaxies]; Gilmore a0808-in
[rev]; van den Bergh Nat-a0810;
Fontanot et al MNRAS-a0901 [hierarchical
models and observation]; De Lucia AIP-a0904;
Kraemer et al a0904-rp
[active galactic nuclei]; Renzini MNRAS-a0906 [approach];
Wetzel & White a0907/MNRAS
[satellite galaxy merging/disruption]; D'Onghia et al Nat-a0907 [dwarf
spheroidals, resonant stripping].
@ Later evolution and star formation: Kurbatov AR(07)-a0709 [and
turbulent dissipation].
@ Chemical evolution: Ziegler ap/04-in;
Matteucci
a0704-ln [rev];
Schild a0708 [puzzle
of solar abundances at large z]; Prantzos a0709-ln.
@ Numerical simulations: Miller AS(92); Davé et al ap/05-in
[formation].
@ Related topics: Berlind et al ApJ(01)ap/00 [biasing
and ];
Tolstoy ASS(03)ap/02-in
[dwarfs]; Dobbs & Price MNRAS-a0710
[effect of magnetic field]; Cattaneo et al Nat-a0907 [role
of supermassive black holes]; > s.a. galaxy
distribution; Intergalactic Matter.
Observation > s.a. galaxies [rotation,
velocities]; milky
way galaxy;
quasars.
* Interactions, mergers: In
the 1990s, evidence accumulates that interactions are common and very imporant
for galaxy evolution.
@ Interactions, collisions: Alladin & Narasimhan PRP(82);
Struck PRP(99)ap [intro];
Goto ap/06-in,
Martínez & Muriel MNRAS(06)ap
[environmental effects].
@ Evidence of past: Ivans et al ap/99-in
[metal-poor, high-velocity stars].
main page – abbreviations – journals – comments – other
sites – acknowledgements
send feedback and suggestions to bombelli at olemiss.edu – modified
16 sep 2009