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From: 李蛟 <lij...@12...> - 2016-08-12 02:03:15
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Dear Prof. Paxton and colleagues, My name is Jiao Li. I am a PHD student of Yunnan observatories, Chinese Academy of Sciences. These days, I an trying to use the binary model of MESA to simulate the evolution of Symbiotic stars, which are interacting binary systems with longest orbital period ( > 1 yr). They are composed of an evolved cool giant (AGB or RGB) and an accreting hot, luminous companion (generally WD) surrounded by the dense ionized nebula. So I used the test suite of 1M_pre_ms_to_wd of mesa-r7624 to create an RGB named RGB_1.72Msun_Teff3641.mod (M = 1.72 Msun, Teff = 3641K), and used the WD_0.60Msun_Tc_3e7_iniy.mod as WD ( M = 0.60 Msun, Tc = 3e7) which is created by Wolf et al. (2013), and downloaded from http://www.mesastar.org/results/hydrogen-burning-on-accreting-white-dwarfs-stability-recurrent-novae-and-the-post-nova-supersoft-phase/steadily-burning-models # inlist1 ------- is the evolution of RGB # inlist2 ------- is the evolution of WD When I run these model on mesa-r7624, it is stopped with the ‘Backtrace for this error:’ Backtrace for this error: #0 0x10feadfc2 #1 0x10feae77e #2 0x7fffa1b71529 #3 0x10f9eadcb #4 0x10f9c922f #5 0x10f9cc38a #6 0x10f9cc04a #7 0x10f9cc690 #8 0x10f9d5a0f #9 0x10d054ebb #10 0x10d065ce5 #11 0x10d0694a8 #12 0x10d069565 #13 0x10d08abf6 #14 0x10d08adef #15 0x10d173b59 #16 0x10d187c7b #17 0x10ce8cd07 #18 0x10ce756a1 #19 0x10ce756b7 #20 0x10ce756ef ./rn: line 8: 25801 Segmentation fault: 11 ./binary When it was run on mesa-r8845, the code stop because of convergence problems dt < min_timestep_limit. I have got this problem about a month, but still can not resolve it. Could you please give me some advices or help to overcome it? Attached include two compressed files work_r7624.zip and work_r8845.zip which are worked on the version 7624 and 8845, respectively. By the way, they are worked on OS X EI Capitan (10.11.5). Thank you very much! Best regards! Jiao Li |