Organizers: Phil Armitage and John Bally

The Fall seminar series aims to discuss what we know observationally and theoretically about disks around stars. We will meet Thursdays at 4pm in JILA's 10th floor seminar room. Most weeks we'll have two people giving presentations (either separately, eg. one talk discussing theoretical aspects and the other observations, or as a team). Links to the papers we will be reading each week will be posted below - for full access to the newer ApJ papers in particular you may need to use a machine with a university IP address.

29th August: Organizational meeting
5th September: Introduction (Phil Armitage, John Bally)
Accretion discs in astrophysics, J.E. Pringle, ARAA, 19, 137 (1981)
The Orion Nebula and its Associated Population, C.R. O'Dell, ARAA, 39, 99 (2001)
Herbig-Haro Flows: Probes of Early Stellar Evolution, B. Reipurth & J. Bally, ARAA, 39, 403 (2001)
12th September: Disk structure and lifetime (Meredith Drosback, Molly Hicks)
The Structure and Appearance of Protostellar Accretion Disks: Limits on Disk Flaring, K.R. Bell et al, ApJ, 486, 372 (1997)
Disk Frequencies and Lifetimes in Young Clusters, K. Haisch, E.A. Lada & C.J. Lada, ApJ, 553, L153 (2001)
19th September: SEDs and scattered light models (Dimitri Veras, Sean Doyle) (in JILA S105)
Spectral Energy Distributions of T Tauri Stars with Passive Circumstellar Disks, E.I. Chiang & P. Goldreich, ApJ, 490, 368
Hubble Space Telescope Observations of the Disk and Jet of HH 30, C.J. Burrows et al., 1996, ApJ, 473, 437
26th September: Photoevaporation (Emily Baker, Fred Hearty)
Photoevaporation of the solar nebula and the formation of the giant planets, F.H. Shu et al., 1993, Icarus, 106, 92
Photoevaporation of Disks and Clumps by Nearby Massive Stars: Application to Disk Destruction in the Orion Nebula, D. Johnstone et al., 1998, ApJ, 499, 758
3rd October: Disks around brown dwarfs / massive stars (Adam Jensen, Brian Keeney)
Exploring Brown Dwarf Disks in rho-Oph, A. Natta et al., 2002, A&A in press (postscript version)
Detection of Disk Accretion at the Substellar Limit, J. Muzerolle et al., 2000, ApJ, 545, L141
A High-Resolution Study of Gas and Dust around Young Intermediate-Mass Stars, V. Mannings & A.I. Sargent, 1997, ApJ, 490, 792
10th October: No class - enjoy the Fall break
17th October: Magnetospheric accretion (Kate Anderson, Jeff Parker)
Disk accretion onto magnetic T Tauri stars, A. Konigl, 1991, ApJ, 370, L39
A 10 Micron Search for Truncated Disks Among Pre-Main-Sequence Stars with Photometric Rotation Periods, K. Stassun et al., 2001, AJ, 121, 1003
24th October: Circumbinary disks (Nick Moeckel, Nate Murphy)
Dynamics of binary-disk interaction, P. Artymowicz & S.H. Lubow, 1994, ApJ, 421, 651
NICMOS Images of the GG Tauri Circumbinary Disk, C. McCabe et al., 2002, ApJ, 575, 974
31st October: Outflows (Tim van Vliet)
Hydromagnetic flows from accretion discs and the production of radio jets, R. Blandford & D. Payne, 1982, MNRAS, 199, 883
Centrifugally driven winds from contracting molecular disks, R. Pudritz & C. Norman, 1983, ApJ, 274, 677
Magnetodynamical acceleration of CO and optical bipolar flows from the region of star formation, Y. Uchida & K. Shibata, 1985, PASJ, 37, 515
Magnetocentrifugally driven flows from young stars and disks, F. Shu et al, 1994, ApJ, 429, 781: Part I: Parts 2-6 optional :-)
These are not light reading! For an introductory review, try Magnetohydrodynamic winds and jets from accretion disks by Henk Spruit. This is good as far for Blandford / Payne-type models, but doesn't discuss the possible influence of the central star.
7th November: Angular momentum transport (Lieko Earle)
Layered accretion in T Tauri disks, C. Gammie, 1996, ApJ, 457, 355
Solar nebula magnetohydrodynamics, S. Balbus & J. Hawley, 1999, ISSI Space Sciences Series No.9 (good background if the discussion in Gammie seems like a foreign language... link is to astro-ph)
14th November: Variability: FU Orionis & CVs (Katharina Kohler, Nishanth Rajan)
Using FU Orionis outbursts to constrain self-regulated protostellar disk models, K. Bell & D. Lin, 1994, ApJ, 427, 987
Deriving the Quasar Luminosity Function from Accretion-Disk Instabilities, Aneta Siemiginowska & Martin Elvis
21st November: Dust / chemistry (Robyn Levine)
Evidence for Dust Grain Growth in Young Circumstellar Disks, H. Throop et al., 2001, Science, 292, 1686
Evidence for a Developing Gap in a 10 Myr Old Protoplanetary Disk, N. Calvet et al., 2002, ApJ, 568, 1008
28th November: No class - Thanksgiving
5th December: Debris disks (Tom Bethell)
Structure in the Dusty Debris around Vega, D. Wilner et al., 2002, ApJ, 569, L115
12th December: No formal class. Meet from 4pm onwards for informal discussion.