Hobson family - 1st try

Testing of different configurations vs. impact parameters:

hobson01_primary__10000 hobson02_widebinary__10000 hobson03_closebinary__10000 hobson04_4_0.2_5_60, i.e. D, d, v, φ, oblique... hobson05_6_0.7_5_60 hobson06_6_1.0_5_60 hobson07_8_1.3_5_60 hobson09_8_1.5_5_60 hobson11_8_2.0_5_60 hobson13_10_1.7_5_60 hobson14_10_2.0_5_60 hobson08_8_1.3_5_30, head-on... hobson10_10_1.5_5_30 hobson12_10_2.0_5_30
animation
SFD
both LR, LF small LF too small, secondary only damaged by s. craterings LF small, secondary reaccreted only cratering... LR big, LF small still not enough fragments intermediate-size fragments, almost like the pair! LR, LF exact, but not enough fragments A match of the whole SFD, wo. the pair. A pre-existing binary is thus needed. A match of the whole SFD, incl. the pair/binary! No pre-existing binary is needed. The reason might be we use Merge (v, ω) limits, while previous works Perfect merging? Or target rotation (20 h)?
IC's
fragmentation (1000 s), SPH w. self-gravity, von Mises rheology
reaccumulation (10^5 s), N-body, merge (v, ω) limit = (4, 1)
here, symbol size/colour is ~ diameter D; above it was ~ smoothing-length h! nice reaccretion! :-) a bound binary! (see zoom-in) again, a binary! (see zoom-in)


Miroslav Broz (miroslav.broz@email.cz), Mar 27th 2021