EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 623 (March 2019) A&A, 623 (2019) A9 Full HTML
Open Access
%PDF-1.6 % 7 0 obj <> endobj xref 7 45 0000000016 00000 n 0000001421 00000 n 0000001496 00000 n 0000001617 00000 n 0000001846 00000 n 0000001974 00000 n 0000002121 00000 n 0000002181 00000 n 0000002560 00000 n 0000002939 00000 n 0000003098 00000 n 0000003281 00000 n 0000003464 00000 n 0000004515 00000 n 0000004672 00000 n 0000004812 00000 n 0000005141 00000 n 0000005443 00000 n 0000005571 00000 n 0000005727 00000 n 0000006135 00000 n 0000006272 00000 n 0000006680 00000 n 0000006839 00000 n 0000006957 00000 n 0000007237 00000 n 0000007358 00000 n 0000007575 00000 n 0000007711 00000 n 0000007930 00000 n 0000008079 00000 n 0000008396 00000 n 0000008714 00000 n 0000009176 00000 n 0000009449 00000 n 0000009847 00000 n 0000010038 00000 n 0000011089 00000 n 0000011453 00000 n 0000011602 00000 n 0000011999 00000 n 0000012213 00000 n 0000012270 00000 n 0000012566 00000 n 0000001196 00000 n trailer <]>> startxref 0 %%EOF 51 0 obj <>stream xb``b``r  | \D1(41`!GGc< X>h4İ:` HhX V|F> endobj 9 0 obj <>/Encoding<>>>>> endobj 10 0 obj <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/Type/Page>> endobj 11 0 obj <>stream H*2PHbw.=S## KM, LL--L,s=s \ H endstream endobj 12 0 obj <> endobj 13 0 obj <> endobj 14 0 obj <>stream x5m1 CSXXY k,fʢ%ceayL5e!7kx?瞧WiґQ1/YvtR[/|csh 5HOtV +eř3v j pbn}Jƚ=$RG5`24W+t#;\a>PD&jW [G6cpk\YѬxswK6a(x?_5Z endstream endobj 15 0 obj <>stream x5m1 CSXXY k,fʢ%ceayL5e!7kx?瞧WiґQ1/YvtR[/|csh 5HOtV +eř3v j pbn}Jƚ=$RG5`24W+t#;\a>PD&jW [G6cpk\YѬxswK6a(x?_5Z endstream endobj 16 0 obj <>stream x240S065U276r,#s# $`Ad_ endstream endobj 17 0 obj <>stream x261R036R2,rLa \P%H237ATpcbr endstream endobj 18 0 obj <> endobj 19 0 obj [600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 318 401 460 838 636 950 780 275 390 390 500 838 318 361 318 337 636 636 636 636 636 636 636 636 636 636 337 337 838 838 838 531 1000 684 686 698 770 632 575 775 752 295 295 656 557 863 748 787 603 787 695 635 611 732 684 989 685 611 685 390 337 390 838 500 500 613 635 550 635 615 352 635 634 278 278 579 278 974 634 612 635 635 411 521 392 634 592 818 592 592 525 636 337 636 838 600 636 600 318 352 518 1000 500 500 500 1342 635 400 1070 600 685 600 600 318 318 518 518 590 500 1000 500 1000 521 400 1023 600 525 611 318 401 636 636 636 636 337 500 500 1000 471 612 838 361 1000 500 500 838 401 401 500 636 636 318 500 401 471 612 969 969 969 531 684 684 684 684 684 684 974 698 632 632 632 632 295 295 295 295 775 748 787 787 787 787 787 838 787 732 732 732 732 611 605 630 613 613 613 613 613 613 982 550 615 615 615 615 278 278 278 278 612 634 612 612 612 612 612 838 612 634 634 634 634 592 635 592] endobj 20 0 obj <>stream x5 0D{8R[.{9>G-dCxI9>Q4Zo:Hsd33}d4I!rY)z>~ endstream endobj 21 0 obj <>stream x34P0P0S546T04V073PH1 X\00247CbBeX r`J# endstream endobj 22 0 obj <>stream x=RIr0 |wII'ԗcwi+Y~.;K"|mn%%WYJXX5UOLL$KI=~^~[dc[LذT4ݔVve,7d&uK0/Ağr, )v@xW S+;DR93KF#`m֘ UEkN+">97t0MUȰRX{h pzq+fd endstream endobj 23 0 obj <>stream x5Q;r1} ] 3og3JFfa =؈ėoYf~'Y)QTEX!Yjs#Sr&>'b8Ύf01h9f=!#n4U i[ZSEȺ)Z[=- c _ĜE'~3尒4#15όO}>hw/̈́LHœƘ1T$?г>0TG endstream endobj 24 0 obj <>stream x355W0PF F )\@>ehifY@Has`zrZ endstream endobj 25 0 obj <>stream x=0C{` }rۀ?iC:N 6 ΁7AE/.o !$ŢVůE4I7QNJx>uz endstream endobj 26 0 obj <>stream x5RK[AۿSjy쬠8K Qry:i>ޅԂ"iǚ5Q4b)>(!SHfd2r >֛L9is(Iz-v|YAғu-Mk"925Ǟ2#A, IOH3;g-yx/~2U2 `; ("$h(fƚۅ"=D^ ,z2'; Jjaq6JS]g&a氳R2 qp/${1aļ]l\̹&ӏ(H\M(?7} endstream endobj 27 0 obj <>stream x336S0P0 F )\@>,́,# .C c0mbl`fbdY 1 r endstream endobj 28 0 obj <>stream x5R9@ } ] v͜~߆_ CVie!U-.Im W%ڥ Pt,6˯JH+kLwIi"Eo7o}=@.^ AS(i|Ъc(ew 4<3}(~_K&(? _osџa`Ś}@*z`yT endstream endobj 29 0 obj <>stream xMA "OPDtz_NE5jK02kP)U0\ 2IL{qIqzz"X endstream endobj 30 0 obj <>stream x36P0P040F@B!H Y@8&+ & endstream endobj 31 0 obj <>stream x5P C1g dVukm;aBXȔy)K>:L." u%ʚ +`p&^7`i5tႦ.B%|u{OxjrvC` jMX>stream x366W0B]K#c R!Ő pYUp@i4ߪ endstream endobj 33 0 obj <>stream x=O 1 =8z,[\FR"@eG \b9/i?iX5GaXn,JW-^ B]HޭLd<;p'>TYz@;DYIXV]ju=̪'k)PTBt{ o/ endstream endobj 34 0 obj <>stream x34P0P4W546T060Q073PH11s,lLeb ̀Ɓ% 9pr΃ endstream endobj 35 0 obj <>stream x5K! C9/0R~p6aZ /KL`c%TO>$#I9P7OhL 3l%t2[VNH6f^S $jeF2T`<3\脇ʰN1fF~{20c endstream endobj 36 0 obj <>stream xE 0D{`~&f( JpO{:2Sa ,S`5FR죰n_uzS*Ovvq= endstream endobj 37 0 obj <>stream xMQmD1 \ky R]oC /)%K [UC?13,=?TPbht/"+ߏe s`&4`oI&ռ3d‰ATwM,3V7: lx%D`r Z`Q+ tĺv7C/਺x} K{,|BL;wI#fR:=b}@e+ (\* endstream endobj 38 0 obj <>stream x-Q9AzBsˑ C :-qPO+Uwu9HTM]vf5,?c 7zqxLu5{kOfP2+qSușO \ ȹeƌ#M!RH&3AQ~#aU#j \Ks4;<9GW +ET<pC7ҹ^s0XM7/=[ endstream endobj 39 0 obj <>stream x=RKn1)@Mr[T /1 %?ꒈ3L~r]Qljg!.6Xr_rњbO/ȴTXVݣC(-װr{d`Jn@CHYAaPl( WԬtb ) ٠[]aP[[xfޑ3qYk?=Q2QMg|2RCgB'`$Ip#A 1qOl)V;ޒ{,\L'ib?lK\+E(~Aq|XdDw#h% 0xyDhDԎ=(ͱ&{ǫvzcw. endstream endobj 40 0 obj <> endobj 41 0 obj <>/Type/Font/CharProcs 40 0 R>> endobj 42 0 obj <> endobj 43 0 obj [600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 318 401 460 838 636 950 780 275 390 390 500 838 318 361 318 337 636 636 636 636 636 636 636 636 636 636 337 337 838 838 838 531 1000 684 686 698 770 632 575 775 752 295 295 656 557 863 748 787 603 787 695 635 611 732 684 989 685 611 685 390 337 390 838 500 500 613 635 550 635 615 352 635 634 278 278 579 278 974 634 612 635 635 411 521 392 634 592 818 592 592 525 636 337 636 838 600 636 600 318 352 518 1000 500 500 500 1350 635 400 1070 600 685 600 600 318 318 518 518 590 500 1000 500 1000 521 400 1028 600 525 611 318 401 636 636 636 636 337 500 500 1000 471 617 838 361 1000 500 500 838 401 401 500 636 636 318 500 401 471 617 969 969 969 531 684 684 684 684 684 684 974 698 632 632 632 632 295 295 295 295 775 748 787 787 787 787 787 838 787 732 732 732 732 611 608 630 613 613 613 613 613 613 995 550 615 615 615 615 278 278 278 278 612 634 612 612 612 612 612 838 612 634 634 634 634 592 635 592] endobj 44 0 obj <>stream x5RI1@Ka֜fVRm*`/1d[֤Ylt>)>stream x5 @C{`}TwA$W`?iJp_Qdh"5nzbY94,%9v>stream x=K0D9h9OFvzQEQkJR*ٛS4q7)f JAuӗaQzW tt+,JOEKX1b)z0Lk6QS" EJ7 PQ\Gom;A jlHHE/iB_uشg|ECݸGY1|js&L.ײ8V 4JXjKz]chjlehvex? o;JϞ7\}z<-琬B-6a,]9}~*=}F endstream endobj 47 0 obj <>stream x=;! C{N#?g36o%%[(:rxI;iN5p7co"SAkNEr*:刹 /N&i&'W$Pa=.uV bEiH0"Ř o\>{L3 endstream endobj 48 0 obj <> endobj 49 0 obj <>/Type/Font/CharProcs 48 0 R>> endobj 50 0 obj <>/Shading<<>>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]/ExtGState<>/A2<>/A3<>>>/Pattern<<>>>>/Type/XObject/BBox[0 0 460.8 345.6]/PTEX.FileName(./compar_spec.pdf)/FormType 1>>stream x}KnqܾE/TUs)A- I /@c}GdD}\2<F{N|gV}K}ky x'_߯^ ~ӗ)x<~_|8[_j/Vz~`vxK(o#;^}~Z^K-m8c\[o/~Q_~׿1Nn|vuԧ>aNӣZ>6⭔v^ڞ#@[?[쉏{3 =kc{F_O}>kYu>}pg#ho6? # Cm2Og_׭x}1K ?2@_4z8~Q잾w'T#1Gpޏ1~ۯ1aIS^mSnݔko'&MP|w8^FY?~19!)1o?`zժoʿ~zkk<~U880MS_tG^`sAO|Uk#m}_?Ucu^ȫy~S_ HPz{絙U}͑~o+8!^J3Vf#|(":N6[W:֟s>ih`x`'ўU/9@l_^q/߿/Ǐ~߿\Fo4=% v~e< (OV7:`H3уG MhRN#r(uj nX; 2z@oϹ5v=u YJtUI9(;:cmJn K$QB PZCCW +a;QA0qԄAh`u9GWBZ6EqRG]4oy *g h87h+GXP?L +)`ު+K+M  MO1֢&rt4}# =J03p#65 \~;84Ga1`J-,'>4~Z} "u9|I\19H`XX-A0%'j9ƀV k ){v8,j]*w(z~OO#jkEƃR@V=xx?X)#i$6Im{3ꩤϙ|pcB%AMc" 5iɱSӟ90Zߚ6)t#Mf3w`0_1hrF|q.R.7n7smV7p'R1' L Ʃct-mr@AFG]p4]9h ]> Z]a[8t新s8dį1@4M?;{&Uvnam4nL-<mH¤>b J\?|e4)C@utq"9x_`pWC[] f|෭Ӥ@aWUh$MCF;g3zFwxna81}2}0/MD8VgMBx\QH-AnՇxlz|nt@S- 6Sci ɱir*NI`yaTFcuB+TpŅ'LZ ?">=jzU!ɦqak"xud[L %pc֚af-F[ơN(\5йzX$+% PbWI!ޢjy ` Qb|+%QYZvJѰXbQ\_^IA0VV `pncx1Nl y^Ij7S_<;q2j54a~ v48qOͤS+$i\]Wk:ЀvnK=zmALlT?%X S|G@ n 8,ŽTgof|@$--xK@ﵪ <mtzl{lQО8 [h<xO֠åV}N;ZC !4z!M~댩GNXYnSnJ|2; X21~~C8t3 C҇q"2 DLЮ5/͏cqp:B˺.WAX={]i~ՎȤrOt5v39cJƠio]6o$EK/G9|,sEl7q6)VJU7 0h54ǀ6688ehN Cnӧ00yGѡqZvƈIOxŦqqԘG$pv!x+p\7 z?]GgWpn4Ø1~kl>c\caZ mkRܒjË֕IЂ`61[+٪zDܩ~:}|Bll0EY(IGJ.gs^FqCUp5ϲ{%!LEG9l7{/nECEzX$F\Zh`=C|+Zm s-x- 'o$}+n@7 kqS1[P':ٵgq&0B(XhB6+42,kin:z2Wʃ~ T^Ik_KJ3_tif60i8ùf|2p x_VkTx+{rl3P_M+Ŕ>6xYӲjǠCl&|s0j6P,lo%J#8y鄿Sx8XP!p*B*Goe<0awx=B@ARvr,5؈Ӫsy{ٓ<:!'z)vHz<$i5V[oCtlBqUh{S)۬9>]Lf5NEC؍ 6=eF\ HZl$ 24LVpI-.o8mm+S8}aъBw36f?4ɧE?WYfVt ٮ]उe*0Dūoo[uz:t~^,ѡ[t-fx)5UA5$0r iPbfx!i:/眫jZ)LT=[ơ]K/)B. ތ\k=ٶ$heCY:abܮ6K4P]K^l` 蕰!EW(p(`ےI7dX mr}*7Nb5N>8 7X~?sQσzWz; W#޴ %(B鮑 8u&cs=BPM/&CB2`n|{&eQq–ԁ2t+jW x}`leY?jM< M:1ge_a*N3}d54S=VqTAuxP#2 XNF\QlwP p٫OFn3{íPNqrfO/OV7ޡڈ.NgK\ co{2><=t7m9 Q=n Dgƫ—͚]8 e>"[Bf^9T*/ͦCH_4Hwn`'.ї(Zt8)Ο%Ӂ^>y =g8`*EUqMB:@lt&AĘ> LIvСĺwq3'MOQy,x3C˂jNρ724y8䗹a!l\s 2CJ:֕ƔRffmO3=35(+аM89 VӰHAt]G[dF!=6 6J0Śǜe:@84nm5ӻ?.eqN@>RSAT}~dǶL a ;m[r^1Z]w(Oa@)*"s7"KL'-DiZ}aB+Zv%%(cRf8&፥)?Ig]P80C}-I${u!c&Z(hx\X=< ]Xj)ti%tc^Qֵ۞J'OG,֮5M;42@ӘRgiC65@? Y$XWfF/.A?tFQ}^tɼƣWuٮ|;eg_%%0q溚3/ DƋ`fה0a̘`(xot\Bb<CP0Kg04Cg`3^Yb2rW:VQfnD0lji_+xa7x׸_0gQR"VQ@uUD8630 +zj^ b(8LaүTgx'|X'C~4Ca} _R}U, 0*ΐI@\'M"8#H 0k'!mc ˜16u-v3l|ιMy }9V)æb+MM>Y!N7!Ω; #e3OL.a VıEG]LY1csTM2+G`a+76F/aS*KSΝeuSCj蘷:c*U8JFaIل':X^9N5-p,c GgYR&ϊ\+ó!=-2r95GGK'nxr/>0$4Do"sǖ`%6ΐC8~^WMw5eUD b#$t%La;Ч4>$Lx"1H88Pa@!<ʺt@=(Шk)~ɜzsiȊG1+ 80 |:鼜x$= -ۑ41Hj"K[LQ?\>`6sM:SQ9<*h*̒rXL8#\6&(8Մ,'+gV̷q5$7Ӏ6w-O]U՘?)IU; ڸ"uU:_霾*m:RqU2\l{AmMdTVΠA7\1Q0%f-6gƙ&xt-V8 DNXfZ2S.mVdpN0pbQft4{̆ Eywdp5 q!5L$hZLШŕMNfrL(ri& !}oPٟ]&\W&^NZFU@KvR)K_Y@bcn47y堝.7МqY <,oezKuơȳʉ I{e2E8ss'=Glp1N4 ߗRjc:qj1Lb 4pX.&_{5A+0HiQ*dj2JBU EbiMa rp{>̦(i,m ]\>=j~ y9fJ袳L/vȨ̍k_fy[\H9|Q5lˀn>~]O}Jf"m}^Dm-6tj+,5ꦌזX#ԬPsuLʧm|MWB=}\ ճUd°2Y$ޙb3ӀWBqn3N#TNW3/ѭr dhü@3TR(g>\ĘW'ƕQ¶3g~@]+*is'ݦ3PEN +-3IbXle4ɕPqj=ejsqJSq0˳8t1# 8dv^h+m/RIJHd.Wp,qh-C1@L'`f#;5}VVF6dUd,HtS=\i+CYK5+GMcTBҢ1/Ym=deV\E)=Gh VU[x~A8>U$@E96m2PA;<ΐ^Oᅮy!a˳Ka&l2?8%0U01\䅷k',ɴm"EΊCeBU9ٟ u-K;Q"gaX1pe7gdD ]2NDeu˥X08%'ΛN^Rv]Nf`#'qaaT&Qj鮠t=]FzHܩdA:ES[>pA>t _U=Ca(mҫaj80@lݝYpC=ŨYo DVփxwo|Jơ{yn;5b۳s*a*^#$ŢВ4kEYݍV\rJS7 |R2q3<+<hLgj 6\[BT 88Netm t١k&>mҒ,q Z<-֨JG9ь.HEW-egmF=%KQJJZ׮%ni xZUEZ|&Uģ6?n?:rY;=IF%T5BqRtZAGHu y$ #!1ҳc5sѤ(cE.qZTA I<~*;h`r tGzL5ƙ)U4CE5阪5+~QGIN8 zn7 c]gt@J`'>YY!Ń?U6(j,.!R `obBW'3ȝrU)C[upCR_Ohlk2ǣzt"D|P*#B:ϕHQ}OIz s~̲i:N⭪1TiCtY mW/zPYqƦ|zfo9̼;  oPF0WfqJ3_EQ̏YTcЬo8$K6BK , ؿP=ƣ+F|5B0EdMcV2μq> M=tĺ wSTCy[Ti^vę[zy[tZy;h4Ȏ.I#LdYAhsYЌڪϏ8f.qEUpBU2bl َ蒵SO&YY4>3YdX%y3RhF=ejA͌OdjZ"lM{ETHcŚ"&}өC:tlY>jGϳX8L)͆k݉Q1SQ8 ڴIٮzSLSa-:t#VdJ%2ǣخ`-RSlSY=<I-e:o$Kj#gfRa'#Ksfق- ! ;Y M6`u3DVD‚3hS${bp%X\ƇCL8*`GpX 6j7ݓaT\3 [eؖ)߰ǯ%^uǮ RYKv7uˌ|ʷY@獱f&%0G~!$ Xx\uFvg a.ILִ\ݛbUdŌ&H~>i*cSN2O.J~`Y:&]d= 9Q6m4GVxs% +Xᐗ e.LzFm\3+-苜2lUȫG3WY{_N= .lYyovMȎ .ba"Yۥ K[F\3nZ']@lp-Sste޻5$V7r8 7MdF8r5F24y+7ܕUnV*l:m yGqn#+!yYULmiyl#ټnt醊OfC&EN%r>S״AjeJ/&"Bn,`!&t7k0UV^;U"B&$dFX{[UŪQ=άӒZ[lו>ϥ ^ak i ,GH"Ϗ7V WSW){*iRy ELTSQUn-YjM~ݻwl&2U88bZ::5Q |òМ)+ݍc:^%߼JG0Ke䈏s`Y \N+e!CdyGĹA G'8v݅Od oku_(/ p 믳/gsxԓL_.O^#– ن|˄=KСѪ4gwolrHWKA9MlRm93 pV^%a̾Opf{Mۄ%t2^]:Opv뻝_gvn ʯ'#kVZOJ]1|E92ї"=]ɱYIZ]g&$et-ku {ܓO0?tMȎ]$YbDjyuޤ6g*~R 隵޾464Gij~][Bŵm gPe v9J#0wMm9 e_KNUfjAy]2wͻm?. ic:2@lk/^X'#zܫ@;N,hXyKW7ј E:/y4~jMT}Lð'wftgAGYӱ3諌U3ϲ<ϓ[2F&#;?=aT<бy]wVr6f ܅r=10;ry]YIR{!pys.Tή"> [+GvC16NLKTQ&S_`e )S9U-{2M )k;[*&/O)/bd ŭ\caFB6dH* Vcud,w&ך*}.y`ֽ9{poR5o-*1q3]7^NR?3>ǜ`S&=٘*zEfzXOL%}d92?c@,@Jc/9GF,4 }]͙^: ӇQ% s^=H,.t|"D̜_C(8:3- vZPWgQ֣oTo{' nQ*H rGN-u8޲}ܞ~ROז3'w.ɲG[3㧶g\SP()Ռ6]}@擔yQ7 ðe&>MnK"Zl8'@LӊGܛ9YE>Or+0311Ж۽M^~ -2k{hg>6l彉2ȮD}BgkE?a߀]mx'o;+8Zẏc|OO}2c \_-# LFX1A2 Y^T`N.1۹0AgͰ%/w1)}y}Li<yy˓tl ٌuA_w_*g[%?RLX*J?_PD_>[>_o^2c( X[3>W/_iʃ3'o E-bag/`g__ha=65;"]O<$YG' &0ww;[&<(k`7_k5ӕ-CVR2o~_䧿g_w_⳯c X?Qkԭs{oկFƔfOo;c?u)!L7}DDM&""O|[(p.1{AtG_x8(QO/&?Tfu&1ca9dQsG6/2b] NIQ~]O(Oݟ{3;wClҘ~' ϢH] B23yU$ȘPC%ȷHߝ_^|/V+ 3ZY7XawvB0QEb[\*jg@j|/U*KX5[ endstream endobj 1 0 obj <> endobj 2 0 obj <> endobj 3 0 obj <> endobj 4 0 obj <> endobj 5 0 obj <>stream 2019-02-06T11:29:57+05:30 2019-02-06T11:29:16+05:30 2019-02-06T11:29:57+05:30 LaTeX with hyperref package application/pdf uuid:e43b1b46-2a6c-48b1-a7ff-389b6a5bf774 uuid:e5a71f71-9dc8-4cba-828d-946eba112a73 pdfTeX-1.40.19 endstream endobj 6 0 obj <> endobj xref 0 7 0000000000 65535 f 0000028406 00000 n 0000029597 00000 n 0000029685 00000 n 0000029761 00000 n 0000029813 00000 n 0000033239 00000 n trailer <> startxref 116 %%EOF

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.