Interacting ellipsoids: a minimal model for the dynamics of rubble ...

$¡RD”?–@Cf)–—€%P\J¢R _ Tc–GJaTSDGJ _ P¦‡¦‘PSf[TcPSL¨DGTc–PEfS>A€%‘5>¢RPSRUT _ >¢ÜJ¢KMPpR->¢T?gu@CRP\J¢KMgC¤%@uR-LPS‘PSRL-PSRUT\:Ü ÜÜ„_ TV> ^ P _ >Ag‚ÀPSL¯¡>AK†0 ¨’TV–JaT?–GJÜÜ„!&% FHïŒS¨ $ F H ïS ÜÜ„ &%hlzŒtph_ J–Ê|¬|a{‘-Kc>±ìMP[f[TV>¢KËW_ Hf)– TV–GJ±T ï‰Sm&–P >A‘PSKcJaTV>AK ïS@CRfSPaD¡>AKJpBA@C`¢PSR ÜD‹>ARP3fS>A€%‘>ARPSRUT¤>¢¨Tc–P3`¢PSf¦TV>AKM@¢J¢gGP[­HJaTV@C>AR£“ÖÊAÊ @ _ gu@CRP\JaKcgC¤WLPS‘PSR-LPSRUTÜÜ„ #"Üv‹S Ü«Üf @>AR¯TV–Pp>¢Tc–PSK?TV–KMPSPaD=”¤PpRPSP[L£J¢R—J¢LL@‚TV@u>¢RGJ¢gP[­‹HGJaTV@C>AR¯TV>%KcPS‘-g¢J¢f[P8@‚T\:;k;>A€ ^ @CR@uRB È*­=:E“«wAw ”?@CTc–“qwa‰ ”;PE–GJ\`¢PÜ" Üfø ß“«Ê¢| ¨«$”R4)J¢RL¯T)Ja¨@CRB(TV–-PETc@u€%PLP[Kc@CàJaTc@C`¢PEJ¢RLjKcP¦{J¢KcKcJ¢RBA@CRB(TVP[Kc€ _ D-”¤P8J¢KcKM@CÀPTc>vTV–P _ fSJ¢g¢JaK&PS­‹HGJaTc@u>ARÜ„80ß 0 ¨E$ Üfø ß 0 ø ø ß ¨©S$¨fø ßv ¨*) Üfø“«ÊUŠ ”?–P[KcP LP[‘5P[RL ø0_ >AR 0ÜA/D¦”?–-@uf)–Ž@ _ > ^ TVJ¢@uRP[L ^ ¤µTVJ¢¨‹@uRBpTV–PTc@u€%PLP[Kc@‚`¢J±TV@C`¢P>¢YPSJ¢f)–%$ 0 ò &0 ò_ Tc>ŽL@ _ f\J¢KML >ARP¨@:fS>P[ó%f[@uPSRUT3>¢8ò‘KM>¦f[PSLHKMP(TV>jJ¢L-àJ¢R-fSP(TV–-P%L-@CI5PSKcP[RUTV@¢JagOP[­HJaTV@C>AR _ ¡>AKEJ…BA@‚ÀP[Rm&–PfS>¢€e‘>ARP[R‹T¡Kc>A€ðTc–PWÀP[f[Tc>AKc@uJ¢gOP[­‹HGJaTV@C>AR+“ÖÊAÊ J¢RLªKMPS‘guJ¢fSP8@CT”?@‚TV–lÈ­=:%“ÖÊUŠ :@CRfSPvÈ*­=: “ÖÊAÊ L>P _ R>¢T?‘-Kc>6`@uLPpJ¢RU¤Ž@CR-¡>AKc€eJaTc@u>AR…@CR…TV–PEL@CKcP[f[TV@C>AR¯>¢ÜDTc–P ^ P _ T3f)–>A@CfSPn”;>¢HguL ^ PETc> KcPS‘-g¢J¢f[PTV–-PWfS>¢€e‘>ARP[R‹T3TV–JaT@ _ ‘KcP[fS@ _ PSg‚¤—@CRjTc–PWL-@uKcP[f[Tc@u>ARj>¢ÜD5>¢KJ±TgCP\J _ T\DGTV–P8fS>A€%‘>ARPSRUT3TV–GJ±T–GJ _TV–-Pg¢J¢KMBAP _ T _ fSJ¢g¢JaK;‘KM>¦LH-f[T0”?@‚TV– Ü:*RŽ‘KVJ¢f¦TV@CfSP¢DTV–@ _ f\JaR ^ PL->ARP ^ ¤…f)–->¦> _ @uRB(Tc–Pf[>A€e‘>ARP[RUT>¢Ü”?–@uf)–l–GJ _ Tc–PWguJ¢KcBAP _ TJ ^_ >AguH-TcP8àJ¢gCHP¢D5J¢RLªP[gu@C€e@CRGJaTV@CRB(TV–-PWPS­‹HGJ±TV@u>¢RªfS>AKMKcP _ ‘>ARL@CRBµTV>TV–-@ _ fS>A€%‘>ARPSRUT?¡Kc>¢€ðÈ*­:“«ÊAÊ : _ J%KMP _ H-gCT\D”¤PWB¢P[T?TV–Pn¡>AgCgu>6”?@uR-Bvgu@uR-P\J¢K _ ¤ _ TVP[€°>a†P[­HJaTV@C>AR _ß Üf©øVX0u¦Ü Üf©ø ß 0 ø ø ß ¨8>S$¨f©ø ßv ¨8¦‘VX)“«ÊAˆ ”?–P[KcP ï‰S_ PSRUT _ Tc–P–Ê$ʬ|a{}‘Kc>±ìMP[f[Tc>AKË > ^ TVJ¢@uRP[L³¡Kc>A€ñLP[guP[Tc@uRBªTc–PŽKc>6”î>¢_ ‘5>¢RL@uR-B%Tc> Tc–PEg¢J¢KMBAP _ T?fS>A€%‘>ARPSRUT?>¢Ü:ÜÜ„ '%(KcP[‘KcP}Tp@ _ ”¤>AKMTc–¥R->¢TV@CRB…TV–GJ±TWÈ*­ _ :l“qway J¢RLÆ“«Ê¢ˆ LP _ fSKM@ ^ P Tc–P P[`¢>AguH-Tc@u>AR >¢;JŽfS>AR _ PSK$àJaTV@‚ÀPï‰S ÜÜ„!8fS>AKMKcP