ASTR8008 -- Star Formation
Semester 2, 2016
Class meeting times
Mondays and Wednesdays, 9:30 - 11:30 AM
Wooley Seminar Room
This course covers the basics of star formation and the transition to planet formation. We begin with a survey of the physical processes that govern star-forming clouds, including magnetohydrodyanmic turbulence, gravitational instability, non-ideal MHD effects, and radiative transfer by molecules and dust grains. We then study the star formation process starting at galactic scales and working our way down, touching on topics including: star formation laws; molecular cloud formation, evolution, and disruption; collapse, fragmentation, and the origin of the initial mass function; protostellar disks and outflows; pre-main sequence stellar evolution; massive stars and feedback; and the dispersal of disks and the onset of planet formation.
Our main reference for this class will be the book Notes on Star Formation; you may find the source for the book on github. N.B. A version of the book is available on the arXiv. However, this is not the most up to date version of the book, so please use the link above or the github version, rather than the arXiv version.
For a few topics the main reference will be Physics of the Interstellar and Intergalactic Medium, by Bruce Draine. This book is well worth buying, but if you would prefer not to just for a few chapters, I have copies in my office that I can make available.
In addition, we will have supplementary readings from review articles and the research literature each week. Links are below.
Every week after the first there will be a presentation from one or more students, covering the supplementary reading for that week. These will be scheduled during the first class meeting.
In addition to these assignments, there will be an oral final examination during the examination period. These will be individually scheduled.
|Date||Topic||Textbook||Review Reading||Literature Reading||Notes|
|July 25||Observing the cold ISM||Ch. 1||Kennicutt & Evans, 2012, ARA&A, 50, 531, sec. 1|
|July 27||Molecular line observations||Appendix A||Kennicutt & Evans, 2012, ARA&A, 50, 531, sec. 2|
|August 1||Observing young stars||Ch. 2||
Kennicutt & Evans, 2012, ARA&A, 50, 531, sec. 3
Krumholz, 2014, Phys. Rep., 539, 49, sec. 2
|August 3||Chemistry and thermodynamics||Ch. 3||Krumholz, 2014, Phys. Rep., 539, 49, sec. 3.1-3.2||Glover et al., 2010, MNRAS, 404, 2|
|August 8||Gas flows and turbulence||Ch. 4||Krumholz, 2014, Phys. Rep., 539, 49, sec. 3.3|
|August 10||Magnetic fields||Ch. 5||Crutcher, 2012, ARA&A, 50, 29||Li et al., 2008, ApJ, 684, 380||Problem set 1 due|
|August 10 (2-4 PM)||Gravitational instability||Ch. 6||Krumholz, 2014, Phys. Rep., 539, 49, sec. 3.4|
|August 15||Feedback||Ch. 7||Krumholz et al., 2014, PPVI, p. 243||
Murray et al., 2010, ApJ, 709, 191
Dale et al., 2014, MNRAS, 442, 694
|August 17||Giant molecular clouds||Ch. 8||Dobbs et al., 2014, PPVI, p. 3|
|August 17 (2-4 PM)||Galaxy-scale star formation: observations||Ch. 9||Kennicutt & Evans, 2012, ARA&A, 50, 531, sec. 5-6||Columbo et al., 2014, ApJ, 784, 3|
|August 22||Galaxy-scale star formation: theory||Ch. 10||Krumholz, 2014, Phys. Rep., 539, 49, sec. 4|
|August 24||Stellar clustering||Ch. 11||Krumholz, 2014, Phys. Rep., 539, 49, sec. 5||Ostriker & Shetty, 2011, ApJ, 731, 41||Problem set 2 due|
|August 29||The IMF: observations||Ch. 12||Offner et al., 2014, PPVI, p. 53|
|August 31||The IMF: theory||Ch. 13||Krumholz, 2014, Phys. Rep., 539, 49, sec. 6||da Rio et al., 2012, ApJ, 748, 14|
|September 19||Discs and outflows: observation||Ch. 14||Li et al., 2014, PPVI, p. 173, sec. 1-2||Problem set 3 due|
|September 21||Discs and outflows: theory||Ch. 15||Li et al., 2014, PPVI, p. 173, sec. 3-6||
Tobin et al., 2012, Nature, 492, 83
Seifreid et al., 2013, MNRAS, 432, 3320
|September 28||Protostar formation||Ch. 16||Dunham et al., 2014, PPVI, p. 173, sec. 1-4|
|October 5||Protostellar evolution||Ch. 17||Dunham et al., 2014, PPVI, p. 173, sec. 5-9||Tomida et al., 2013, ApJ, 763, 6|
|October 10||Massive star formation||Ch. 18||Tan et al., 2014, PPVI, p. 149||Problem set 4 due|
|October 12||HII regions||Draine (2011), ch. 27||Myers et al., 2013, ApJ, 766, 97|
|October 17||The first stars||Ch. 19||Bromm, Rep. Prog. Phys. 76, 112901|
|October 19||Late stage stars and discs||Ch. 20||Alexander et al., 2014, PPVI, p. 475||Greif et al., 2011, ApJ, 737, 75|
|October 24||The transition to planet formation||Ch. 21||Johansen et al., 2014, PPVI, p. 547|
|October 26||From planetesimals to planets||Youdin & Kenyon, 2013, PSSS, p. 1||Bai & Stone, 2010, ApJ, 722, 1437||Problem set 5 due|