Here is the schedule for the next few meetings as of Tuesday the 27th:
Aug 2: I will lead a discussion of the physics presented in the paper Enrico mentioned (on tidal disruption of stars by black holes in the centers of galaxies, you can find it here: Rees 1988)
Aug 9: Shangfei will lead a discussion on chapter 4 of Solar System Dynamics. I’ve attached the .pdf of the chapter to this post, and until I can figure out exactly how that was helpful, here is a link.
Aug 16, 23, 30: No meetings.
Sept 6: James will lead a discussion on the foundations and applicability of his FLASH tidal disruption formalism.
Sept 13: Luke will lead a discussion on gravitational wave losses in compact object encounters.
Sept: Rachel will lead a discussion on the various prescriptions (and their validity) usually put forward to calculate secular tidal energy losses in N-body interactions.
Meetings are (so far) set for Monday from 4-5pm. I’ll be sending out emails before each meeting, or if anything changes. I’ll also update this post with any news, so if in doubt, check here. See you all next week!
Our server move is now complete, and everything should be up and running as it was. If you find anything wrong, please let me know.
I will be presenting the preliminary results of my project related to the disruption of giant planets at our meeting on Monday.
Figures and Movies:
Links removed for now.
Cool, semi-related result from Hubble:
Background on Kozai mechanism:
Ford and Rasio 2008
Nagasawa, Ida, and Bessho 2008
CARGO’s SVN repository has been given a face-lift. Additionally, I have added many of my FLASH setups to the repository, and my jFlash IDL FLASH visualization code. Currently, all of my code is very poorly commented, but I’ll be working to make the code more understandable in the near future. We have a lot of duplication of effort in our group, so I encourage everyone in our group to upload their projects to the repository so that we can become more collaborative!
As many of you may not be familiar with SVN, you should read this short tutorial on the basics. When you commit your projects, please them in an appropriate sub-directory (e.g. all FLASH setups should go into the “FlashSetups” directory).
All of the projects on the repository are password protected so that they are only accessible to people in the CARGO group. If you would like a project to be restricted to only yourself or a select few in the group, or to be available to the general public, please e-mail me and I’ll make the appropriate permissions changes.
Hi all, I’ve changed the page theme as the previous one had all sorts of rendering issues. By the end of the weekend this page will (hopefully) be nicely polished and working smoothly.
Here are the papers I’ve compiled/have been suggested for the accretion stuff. If there is one you’d especially like to present. Feel free to add on as well.
The Theory of Stellar Winds and Related Flows
A Review of Bondi-Hoyle-Lyttleton Accretion
Spherically Symmetric Accretion with Self-gravitation
The Stability of Bondi Accretion
On Spherically Symmetrical Accretion
Axisymmetric Accretion Near Compact Objects
Energy Considerations in Axisymmetric Accretion
Gas in Globular Clusters – IV. Accretion of Gas by Stars in Globular Clusters
An analytic study of Bondi-Hoyle-Lyttleton Accretion (I & II)
Similarity Solution for Unsteady Accretion Flow (I & II)
Subsonic Accretion of Cooling Gas in Clusters of Galaxies
Spherical Bondi Accretion onto a Magnetic Dipole
Propagation of Magnetized Neutron Stars through the Interstellar Medium
We’ll be going over the talks that were given at the Stellar Mergers Conference at the Lorentz Center in Leiden, The Netherlands. Here’s the link to the conference program:
I met up this morning with Shawfeng to get Enrico’s and Doug’s Cray system up and running. I was a little late and so I missed a decent amount of the fun/mundane stuff… plugging in cables and the like.
Unfortunately it seems that there is a major problem with Red Hat Linux interfacing with the Hardware. The issue arises when a node attempts to write a new partition scheme to its local hard drive. Shaw did a Windows install on one of the nodes as a test, and that seemed to work okay… well, accept for that after a cold boot it wouldn’t catch keyboard strokes…
Ack! What is going on here?! Stay tuned for update and picture.
Welcome to the homepage for the Computational Astrophysics Group of UC Santa Cruz.