EDP Sciences logo
Subscriber Authentication Point
Search
Menu
Home All issues Volume 627 (July 2019) A&A, 627 (2019) A178 Full HTML
Open Access
%PDF-1.6 % 4 0 obj <> endobj xref 4 94 0000000016 00000 n 0000002456 00000 n 0000002516 00000 n 0000003020 00000 n 0000003160 00000 n 0000003302 00000 n 0000003435 00000 n 0000003579 00000 n 0000003723 00000 n 0000003869 00000 n 0000004015 00000 n 0000004160 00000 n 0000004305 00000 n 0000004443 00000 n 0000004585 00000 n 0000004728 00000 n 0000004870 00000 n 0000005014 00000 n 0000005157 00000 n 0000005300 00000 n 0000005441 00000 n 0000005582 00000 n 0000005723 00000 n 0000005863 00000 n 0000005997 00000 n 0000006131 00000 n 0000006278 00000 n 0000006425 00000 n 0000006566 00000 n 0000006707 00000 n 0000006843 00000 n 0000006987 00000 n 0000007131 00000 n 0000007272 00000 n 0000007413 00000 n 0000007553 00000 n 0000007694 00000 n 0000007834 00000 n 0000007979 00000 n 0000008124 00000 n 0000008269 00000 n 0000008404 00000 n 0000008538 00000 n 0000008665 00000 n 0000008806 00000 n 0000008866 00000 n 0000009021 00000 n 0000009246 00000 n 0000009429 00000 n 0000010480 00000 n 0000010637 00000 n 0000010772 00000 n 0000010890 00000 n 0000010976 00000 n 0000011120 00000 n 0000011260 00000 n 0000011634 00000 n 0000011941 00000 n 0000012241 00000 n 0000012538 00000 n 0000012853 00000 n 0000013056 00000 n 0000013193 00000 n 0000013307 00000 n 0000013632 00000 n 0000014019 00000 n 0000014303 00000 n 0000014609 00000 n 0000014746 00000 n 0000014973 00000 n 0000015375 00000 n 0000015576 00000 n 0000015817 00000 n 0000015958 00000 n 0000016114 00000 n 0000016257 00000 n 0000016416 00000 n 0000016534 00000 n 0000016814 00000 n 0000017031 00000 n 0000017250 00000 n 0000017640 00000 n 0000017789 00000 n 0000018106 00000 n 0000018568 00000 n 0000018886 00000 n 0000019291 00000 n 0000019742 00000 n 0000019933 00000 n 0000020984 00000 n 0000021327 00000 n 0000021361 00000 n 0000021649 00000 n 0000002176 00000 n trailer <<506530EB70B1CC4988C70866255F9436>]>> startxref 0 %%EOF 97 0 obj <>stream xb``f`I*  J |n3c(`>pYRm0eP$&d3HqςRL'7+T3k2d=0e PRps b+`Q yI!ن79CaBtbLJMuH3L?5] endstream endobj 5 0 obj <> endobj 6 0 obj <>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]>>/Type/Page>> endobj 7 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 8 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 9 0 obj <>/C[1 0 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 10 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 11 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 12 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 13 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 14 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 15 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 16 0 obj <>/C[1 0 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 17 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 18 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 19 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 20 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 21 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 22 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 23 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 24 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 25 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 26 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 27 0 obj <>/C[1 0 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 28 0 obj <>/C[1 0 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 29 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 30 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 31 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 32 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 33 0 obj <>/C[1 0 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 34 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 35 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 36 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 37 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 38 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 39 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 40 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 41 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 42 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 43 0 obj <>/C[0 1 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 44 0 obj <>/C[1 0 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 45 0 obj <>/C[1 0 0]/H/I/Border[0 0 0]/Type/Annot>> endobj 46 0 obj <>stream H*2PHbw.=#KK#C,L -̌Ms=sM\ = c endstream endobj 47 0 obj <> endobj 48 0 obj <> endobj 49 0 obj <>stream x3P2P5V\.0@.rDV endstream endobj 50 0 obj <>stream x5; @ C{B'* [=$,,#ލ[lBwpWpoHKe$DZOnT NT=(Rq) endstream endobj 51 0 obj <> endobj 52 0 obj [600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 600 318 401 460 838 636 950 780 275 390 390 500 838 318 361 318 337 636 636 636 636 636 636 636 636 636 636 337 337 838 838 838 531 1000 684 686 698 770 632 575 775 752 295 295 656 557 863 748 787 603 787 695 635 611 732 684 989 685 611 685 390 337 390 838 500 500 613 635 550 635 615 352 635 634 278 278 579 278 974 634 612 635 635 411 521 392 634 592 818 592 592 525 636 337 636 838 600 636 600 318 352 518 1000 500 500 500 1342 635 400 1070 600 685 600 600 318 318 518 518 590 500 1000 500 1000 521 400 1023 600 525 611 318 401 636 636 636 636 337 500 500 1000 471 612 838 361 1000 500 500 838 401 401 500 636 636 318 500 401 471 612 969 969 969 531 684 684 684 684 684 684 974 698 632 632 632 632 295 295 295 295 775 748 787 787 787 787 787 838 787 732 732 732 732 611 605 630 613 613 613 613 613 613 982 550 615 615 615 615 278 278 278 278 612 634 612 612 612 612 612 838 612 634 634 634 634 592 635 592] endobj 53 0 obj <>stream x5 0D{8R[.{9>G-dCxI9>Q4Zo:Hsd33}d4I!rY)z>~ endstream endobj 54 0 obj <>stream x36P0P07W544U022P042QH12443s`9`a$r`Zs: P9\iM8 endstream endobj 55 0 obj <>stream x34U0P F )\@> 4XiLEWD endstream endobj 56 0 obj <>stream x36P0C. endstream endobj 57 0 obj <>stream x50{`ɥ htMMBQ0tf}qhV^hJA endstream endobj 58 0 obj <>stream x0P0P040S047R076R015QH1 \00,,`AdA,#SS Ȧ2 endstream endobj 59 0 obj <>stream x=;0 C{Ȍd'>2VI(/u< i& b;w؞D/)ϡ+E:Ū0[M*K õ}74uK hY pu;Gw5<TQ!OJ|<(!\{0FS@\^BAjI'>stream xEQIr! ++Nͩk,3IN`k1i-x!́/|M4|72:pO.ܗ˂g–WTw/]H}w~fd{H͐:B4&!=#2V,s)R([.ꕶN;#o#JvMl:˶.:$vaqj!"uc5N"v0Q$gq&M]9yV*9>^Ƅtc׶i_>}?\" endstream endobj 61 0 obj <>stream x5QIn0 .AO ``hKxA[֌]< 'Q^{ .o8|^Z9O2 D`@ai'ώH5YN_KK(O~ J.kO8'O [WLcD.A|!]'@;綟Wuu)O645I"%Ҹ[{TS endstream endobj 62 0 obj <>stream x5O;! 9.m`ϳT/od HDG&^S=Ä=Ba$5븛ſ]3 b0řvX'qNcDlc]L(!0%)}9:Nb.a}1WOdP=&ՍI4^2`a$YNkGQ"1'2Ҝb :; *s>h][M endstream endobj 63 0 obj <>stream xEPC1 =`,{wHۿ=JFp!Z?ZK oGFA= 3A΄@xFnvpμ39Zpә\'mBITqTqLύׁlӑ!KI%&~S*)[*EH䁓M4,?Cb̠Q0qGuٜ9-L|X&Q)2>'\N}䢥Uޑ"ۡW%Qէ<Y> endstream endobj 64 0 obj <>stream xMA0~tzJ-6팀03 endstream endobj 65 0 obj <>stream x32P0P4& f )\@B.H  %[B4AXf&fI8"ɴ endstream endobj 66 0 obj <>stream x32P0P4& f )\V.L,іp "} endstream endobj 67 0 obj <>stream xEK D#>stream x5RKrC1ۿSpΘ}tj'+-@B./YK~%ۥW%B>R-G- Q=2'":xa>N)x_xN;2$KMH=I+4t~&+s{rj X+)$=Hr7VސWg%&&MܕBXtLX㰄*aՃM5fcdxLP} #GMv²[6!D3,($Nc$ Ұ9 9e, mh%zМaמE[{ endstream endobj 69 0 obj <>stream x=PC1= |7˥m$B6BLɔ:ʒ)O>Kbnd6%*E/% }ՖC4h9~ 3*K6p*3 mtV[ Ф`׶ r " JMrR=ot-N=Dkq: DpFjtaŲC5=kz7hGt4CָR endstream endobj 70 0 obj <>stream xMPKnD! s\I$!CU۱T*HUSbuM2yOQ nAb$<4#',;Ofč.`5[́9m:7@dP "B.ї9`Jw&\>աqZ coYaLq_֨ɲY I!}{ y+ՠ0u J*}$]S endstream endobj 71 0 obj <>stream x336S0P0 F )\@>,́,# .C c0mbl`fbdY 1 r endstream endobj 72 0 obj <>stream xEC1DsUA wJo-%S'"h0yM%V,&rAJ1xN1븨ufihW3=5'M<[ }@8IP1}bv">G)#qbn fW7y endstream endobj 73 0 obj <>stream x-R9$1 ~`LtIUls#h/#xE=f۴[iGiK,W ;BjW0wy.2meDkag؏]e8*Jl !2J'Qw\I2[E™w2;yNE{ kF9+%|6vzrYɩHHӺ NKؖߗ3| endstream endobj 74 0 obj <>stream xE ! CT>՞0ABA";06Ѣ76իc,zRV鐇Pi0QąYLCaΘȖ2MlTv<e~ma, U^ ?KwUBS0 endstream endobj 75 0 obj <>stream xMMB!0h\vK!CGFGx1 2&^$ m;,1',#`kܛG ADko5u~~]ԥu# ȎP p=&T)8T bSUhV=^; endstream endobj 76 0 obj <>stream x50{6X`KEoC|N/Z #pu#])Ec΂q_H1F=#O_p} endstream endobj 77 0 obj <>stream x5M0뙂̣KA:} ko!/uO*%:l W6xUl1ؠeηI endstream endobj 78 0 obj <>stream x= 0 "#4M2i >d(]iBIO[_mվ*K{ j26|w wN endstream endobj 79 0 obj <>stream xMA "OPDtz_NE5jK02kP)U0\ 2IL{qIqzz"X endstream endobj 80 0 obj <>stream x36P0P040F@B!H Y@8&+ & endstream endobj 81 0 obj <>stream x5P C1g dVukm;aBXȔy)K>:L." u%ʚ +`p&^7`i5tႦ.B%|u{OxjrvC` jMX>stream x=O 1 =8z,[\FR"@eG \b9/i?iX5GaXn,JW-^ B]HޭLd<;p'>TYz@;DYIXV]ju=̪'k)PTBt{ o/ endstream endobj 83 0 obj <>stream x5K! C9/0R~p6aZ /KL`c%TO>$#I9P7OhL 3l%t2[VNH6f^S $jeF2T`<3\脇ʰN1fF~{20c endstream endobj 84 0 obj <>stream x5Qq0 54sۿ @;a@dJ\UGM>`!S֖{&UF!}W2j]* UYFp&I8d Rӿccz endstream endobj 85 0 obj <>stream xE 0D{`~&f( JpO{:2Sa ,S`5FR죰n_uzS*Ovvq= endstream endobj 86 0 obj <>stream xMQmD1 \ky R]oC /)%K [UC?13,=?TPbht/"+ߏe s`&4`oI&ռ3d‰ATwM,3V7: lx%D`r Z`Q+ tĺv7C/਺x} K{,|BL;wI#fR:=b}@e+ (\* endstream endobj 87 0 obj <>stream x=RKn1)@Mr[T /1 %?ꒈ3L~r]Qljg!.6Xr_rњbO/ȴTXVݣC(-װr{d`Jn@CHYAaPl( WԬtb ) ٠[]aP[[xfޑ3qYk?=Q2QMg|2RCgB'`$Ip#A 1qOl)V;ޒ{,\L'ib?lK\+E(~Aq|XdDw#h% 0xyDhDԎ=(ͱ&{ǫvzcw. endstream endobj 88 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 89 0 obj <> endobj 90 0 obj <>/Type/Font/CharProcs 89 0 R>> endobj 91 0 obj <> endobj 92 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 93 0 obj <>stream x=QI0|`̎S}J:Q Gmq7H//;Ey>ST*dTZB Xdr#Si9I1`*JPú l&)g&JJRӈ=vWd:i295D%9 ]$ 5$|-Ag | δh­:Dsvw#\όkT=SႎIÌx3P* ϷZ2h%Hz-v{*f,I$NV{jA endstream endobj 94 0 obj <> endobj 95 0 obj <>/Type/Font/CharProcs 94 0 R>> endobj 96 0 obj <>/Shading<<>>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI]/ExtGState<>/A2<>>>/Pattern<<>>>>/Type/XObject/BBox[0 0 900 552.96]/PTEX.FileName(U:/EDP/NLM/AA/aa34391/Author/Tex2PDF/Figure5.pdf)/FormType 1>>stream x[qW#_ I`H,?H"% X /+_UNWyg{gZorۻ7oaNrwݧ;筸\xy)?O Goa`n{;͎17wݧB= vjuc̻{?>}[·ǖ54:z/՗Oy0#]q/%O#4rqob q^[}mO7'Bur^zק'DbBɗ2r?I#Rldzא]9 qYsO(aߏ7m=w^oO{eo53ڋ|Ǒm]{*Vѣ 3Mkf76ܿweW< '̖98Z,<|37^?񫿾{_o?z櫷_jwi eﮄD]?λ,Kݓ稛;5{d!=kHǐz; ŕcǟ8`@+//ZcLjt(1#ҟZתzr*O O1⼑KcL?(sQ\}sطoՅÏozz}yPmVWYB`*n2jCo.`REO͉?L^sVϱ<۪ )Mgypf0L|鴥{6E1W}Kιvs 5xwW)onFϵ:IqvXH"7fA6wݭGyQ$:硣ƾ2pgn.:#p=1h7"ze{a)nYynu c sRSALmma$|xLwP-~2:>3 }c}Cpn5nokGzו=l UG?j*+i۞17I?*r瞡|a3 ׳\DGyPF1¢;a{\{my/>߾yw'x cln:wq"N.xG*x|njqpE\.QעwiaJ8uixKOZj{5Lwi;0 N2SF{ ˱!rF4G2禳`}.8p2 <{fho;! &(yAOy'q$\==] *i3v$kNDۡ{N & XXtiTHM]GJщ Ct%ߚNsn1;~ +a5DAlh;BX!&!<1!H. B0lCrbhAE2p<Ř>xbF͸( D~eDW2"7*A-KtG8b7iOsGfDb6]L̷ " 2K}oIc~Hi*4|}J[>g. vCbp*s$T.~CwVtC٦nIm͌q"9G$ o&PTEH{U.3X+ oK,>AHW|`%J\JJn--,C(X\H{ɳM$~v\$Š#Ǹ4*":ΌqI[C qA)0"hǏ%" (Jcaw8% 7[jh pWQE@<2!p!jAHvFSUI"uWxlZBW~@+?$XkXplM$( J>a·DnΏEӻWoLEX~IZX~@qJ~ ]d ?VpEނ]r-~sa&| x% 7DW3Cb) DF3:eķIi!t&@DHW" ]Z0)K#0t Fp,#/lF mhA#ĩG7q}X8vf2qDPgX< cs_9֢m8W7!uLF||'~F|+E1"Ўk(K7 8¡hOA @̿;؅n!F5YFuSp*k Yrt i5C9 ƪ;!JM&9E|:tWsX 1@t6e8 ɵڒ}H>ȯ@,F`lxU8уCʔqQ Yz@szM#[qwYa>4rx A'nA ^MEFtvD/H-Dd2` h%"H(jpNΧ˂'Df(BNv #3q򕢽rwEuO#'`7E3FRၕF78]ctPĩٟ)-@8"]-L"))"?lGDM =R7$*Jgn#MLNTK#x8'zmh _MrB#g"Hl_-A`cTz3h Q#ᤆiI=) W| C| 3j[6ŋ+_52*3@H%ޔ[@@&Q+@ "s,j @H[ݘ%̟_GM@s:.-?͆m\">!\%L0-B!DBSӳEP^o0ؑҳE:[q_ca"HUD!T/vAtIzASlD y gCs*Y򤩂bbI#0UK Uʼn!wl9A%1|!缽ňXh\$F){S\MuM)K`T&iL0J"$2\HɊ$x`S5A$ô>#T D23C/l>ޢ`:*}bD-JyT1 %MMInZ\*!> :WBpص "dBg@DdMc" #O9 S QϫbC m $P-JDa/PB*K‚xKXI πDM8Dsm y  q?e,1MUue$M%Dg!"#vPVuFt)pP!  #D:m hg+F`XU-%mբ#FoCW3FHu!%n)` #dM!% ؍M]ƋRJb EdP\P|\J]y/#eK]u 6FÙ!1dPUtCxm!$JKeeL--ϞJ)AY6 !|Gnkf.frRK˸a:3nO:3Caɷ C)- m0$]\Hfx&" A4L⧙T*~~(>C+sLH>e^} $L3>*ק~hjSVrl~\+⃜<-=p>d3E/rƒ_( ! 7qQr,pnY ܟTRFٵ^ i I ֋ $q0CfR=E)eRR#7D$FE + B@% Ej4g5"nMA||vk7U_xᥫ>o<Mf7)lxW2}M7.~ct>/WW?~kzu_W񸽬K79,y3FECAٗ>{뗟lV韶_i h(=%OqM-;-ǹeq]\}|gLܭ .:Oׄqx,C1WK I]Ei8\/_ ] I+NMd؜uCx2ZřxhKuwԇ} endstream endobj 1 0 obj <> endobj 2 0 obj <>stream 2019-07-09T06:37:50+05:30 2019-07-09T06:37:24+05:30 2019-07-09T06:37:50+05:30 LaTeX with hyperref package application/pdf uuid:2a5e348d-f7ff-40fc-92a4-4ff64f07c420 uuid:3fb622bf-3690-4b25-a9b4-932e287529cc pdfTeX-1.40.14 endstream endobj 3 0 obj <> endobj xref 0 4 0000000000 65535 f 0000027640 00000 n 0000027691 00000 n 0000031117 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.