A MC study of the relevance of fluorescence radia6on in VHE gamma ray observa6ons with Cherenkov telescopes D. Morcuende, J.L. Contreras, J. Rosado, F. Arqueros, L. Saha Universidad Complutense de Madrid V. de Souza Universidade de São Paulo
!"#$%&' " • ! #*6016*2" • ! M;?/-;-2&16*2"*+"4'*.-%3-23-"52"$NEHMO!" • ! E-%'/&%" • ! F'.&,-."3*2%5(-.16*2%" FA"!.G'-.*%" M$E$"PQRS""T'%12"U"O*.-1" P"
23*+4*3& " 53,67#'$'1)38'1,1'',#9',4#.3189':%),;"3:'1)'&)',3-,#9',193<':=,,,, 7,@8')#:4$,:4&C'D,0EE, – ,FGE,&., @-U-^35&16*2"*+"_ P "%&1&-%" #*/-3'/1."<12(% " >?@,, #9'A,B3 " H$"3:'1)'&)',4&B,67893#3&1,4::%+',1%."$#4&'3"1$A,, E1(5160-"/5+-6;-"V"WQ2%"X""""""""""""""""""YZ" V"[Q2%""X""""""""""""""""""Y"" $*//5%5*21/"G'-23,52:"U\" '(')*+',$%-'*.',/,0&1 A"" " FA"!.G'-.*%" M$E$"PQRS""T'%12"U"O*.-1" ]"
23*+4*3& " I1,;"3:'1)'&)','J8')#'B,#3,K',4,1.4$$,)3&#:%K"*3&=,, 7,H$"3:'1)'&)',%1,$'11,'L)%'&#,#94&,M9':'&N3+,,, R"`-7"-/-3&.*2"2-1.":.*'2(":-2-.1&-%"V" 0E,67893#3&1 a;"" <'&"*2/)""V" F,-7893#3&1 a;"" 7,67$%C9#,B%:')*3&4$,+1,I13#:38%),;"3:'1)'&)', >?@,, F/'*.-%3-23-"5%*&.*?53 " I#,%1 " bU+.*2& " bU/5:,&"?**/ " FA"!.G'-.*%" M$E$"PQRS""T'%12"U"O*.-1" W"
23*+4*3& " @93"$B,-$"3:'1)'&)',$%C9#,K',&'C$')#'B,%&,IOMP=, I?"&*"2*="&,-"12%=-.",1%"<--2"e9H"1/&,*':,"&,-"3*2&.5<'6*2"&*" &,-"M!$f"%5:21/%",1%" &3#, <--2" Q"4&*R'B,A'# , M2"&,5%"=*.>d" " • ! #$"%5;'/16*2"X5;?/-;-2&16*2"*+"F/'*.-%3-23-"52"$NEHMO!Y" • ! @-0-/*?"1"%5;?/-"2';-.531/"1/:*.5&,;"&*"3.*%%U3,-3>" %5;'/16*2%" • ! F5.%&".-%'/&%"+*."1"2';<-."*+"31%-%A" " f,-"12%=-."&*"&,-"G'-%6*2"5%d" S!P,OTUO>@ , FA"!.G'-.*%" M$E$"PQRS""T'%12"U"O*.-1" c"
I.8$'.'*3&,%&,M!V@IWO " '$')#:3&,,, '$')#:3&,,, %'<U%&-?""" %'<U%&-?""" %&-?""" %&-?""" 4'*.-%3-23-"<'23,-%"" bU<'23,-%"" _*&"&*"%31/-" _*&"&*"%31/-" K"&)9'1,3-,67893#3&1,%&,'4)9,1"K71#'8X, K"&)9'1,3-,-7893#3&1,%&,B%(':'&#,1"K71#'81,, @"K:3"*&',M?V?SW, , @"K:3"*&',HTY!V , 5%(':'&#,#:'4#.'&#,-3:,Z+':A,8'&'#:4*&C[,."3&1, , FA"!.G'-.*%" M$E$"PQRS""T'%12"U"O*.-1" ["
I.8$'.'*3&,%&,M!V@IWO " ?+4$"4*3&,3-,#9',;"3:'1)'&)',$%C9#, '$')#:3&,,, F/'*.-%3-23-"?,*&*2%"" @-?*%5&-("-2-.:)" d N ! d E dep ( ) = Y P , T , h 4'*.-%3-23-"<'23,-%"" d X d X H$"3:'1)'&)',A%'$B,, X?,*&*2%"a"#-7Y" $*//5%5*21/"G'-23,52:"U\"F/'*.-%3-23-")5-/("(-?-2(%" *2"?.-%%'.-B"&-;?-.1&'.-"12(",';5(5&)"133*.(52:"&*" =-//">2*=2"/1=%A , g10-/-2:&,"(5%&.5<'6*2"+*//*=52:"&,-";*/-3'/1." %?-3&.';"*+"_ P A , ( ) = 7.04 ± 0.24 ph/MeV Y 337nm 800 hPa, 293 K !<%*/'&-"01/'-"*+"&,-";*%&"52&-2%-"<12( , ( ) " 20 ph/MeV Y 300 ! 450nm 800 hPa, 293 K FA"!.G'-.*%" M$E$"PQRS""T'%12"U"O*.-1" S"
I.8$'.'*3&,%&,M!V@IWO " $,-.-2>*0"?,*&*2% , F/'*.-%3-23- , R"f-7"jU.1)" 1500 1500 10 2 10 2 1000 1000 Photon density (m � 2 ) Photon density (m � 2 ) 500 500 10 1 10 1 !&;*%?,-.53"(-?&," y (m) y (m) 0 0 hQQ":3; UP" 10 0 10 0 � 500 � 500 � 1000 � 1000 10 � 1 10 � 1 � 1500 � 1500 � 1000 0 1000 � 1000 0 1000 x (m) x (m) $,-.-2>*0"i"4'*.-%3-23- , 1500 10 2 1000 Photon density (m � 2 ) 500 10 1 y (m) 0 10 0 � 500 � 1000 10 � 1 � 1500 � 1000 0 1000 x (m) FA"!.G'-.*%" M$E$"PQRS""T'%12"U"O*.-1" h"
V'1"$#1 " 7-.631/"RQQ"`-7"jU%,*=-.%" Cherenkov w/ 10 � FoV 10 1 10 1 10 1 $,-.-2>*0" Fluorescence w/ 10 � FoV Photon density (m � 2 ) F/'*.-%3-23-" Cherenkov w/o FoV constraint 10 0 10 0 10 0 Fluorescence w/o FoV constraint 1//"?,*&*2%" 10 � 1 10 � 1 10 � 1 1//"?,*&*2%" RQl"F*7" 10 � 2 10 � 2 10 � 2 RQl"F*7" 10 � 3 10 � 3 10 � 3 10 � 4 10 � 4 10 � 4 0 250 500 750 1000 1250 1500 r (m) cl"" F/'*.-%3-23-"3*2&1;5216*2" 10 % F/'*.Aa$,-.A" 1//"?,*&*2%" 1 % RQl"F*7" 10 � FOV w/o FOV ." 0.1 % hQQ":3; UP" 0 250 500 750 1000 1250 1500 r (m) FA"!.G'-.*%" M$E$"PQRS""T'%12"U"O*.-1" k"
V'1"$#1 " 7-.631/"RQ"f-7"jU%,*=-.%" 10 4 Cherenkov w/ 10 � FoV $,-.-2>*0" Fluorescence w/ 10 � FoV F/'*.-%3-23-" Photon density (m � 2 ) Cherenkov w/o FoV constraint 10 2 Fluorescence w/o FoV constraint 1//"?,*&*2%" 1//"?,*&*2%" 10 0 RQl"F*7" RQl"F*7" 10 � 2 10 � 4 0 250 500 750 1000 1250 1500 r (m) cl"" F/'*.-%3-23-"3*2&1;5216*2" 100 % F/'*.Aa$,-.A" 1//"?,*&*2%" 10 % RQl"F*7" 1 % ." 0.1 % hQQ":3; UP" 250 500 750 1000 1250 1500 r (m) FA"!.G'-.*%" M$E$"PQRS""T'%12"U"O*.-1" RQ"
V'1"$#1 " 7-.631/"RQ"f-7"jU%,*=-.%"Xcl"*mU1^5%Y" 10 4 10 4 $,-.-2>*0" Cherenkov (simulation) 10 3 10 3 Fluorescence (simulation) F/'*.-%3-23-" Photon density (m � 2 ) Cherenkov (numerical) " Fluorescence (numerical) 10 2 10 2 10 1 10 1 10 0 10 0 2';-.531/" 10 � 1 10 � 1 #$" cl" 10 � 2 10 � 2 250 500 750 1000 1250 1500 x (m) F/'*.-%3-23-"3*2&1;5216*2" 10 % RQl"FN7" F/'*.Aa$,-.A" RQl"F*7" 1 % ^" 0.1 % hQQ":3; UP" 0 250 500 750 1000 1250 1500 x (m) FA"!.G'-.*%" M$E$"PQRS""T'%12"U"O*.-1" RR"
V'1"$#1 " ]Ql"523/52-("RQ"f-7"jU%,*=-."X*2U1^5%Y" 10 4 $,-.-2>*0" Cherenkov (simulation) 10 3 Fluorescence (simulation) F/'*.-%3-23-" Photon density (m � 2 ) Cherenkov (numerical) 10 2 " Fluorescence (numerical) 10 1 10 0 10 � 1 2';-.531/" 10 � 2 #$" 10 � 3 250 500 750 1000 1250 1500 x (m) F/'*.-%3-23-"3*2&1;5216*2" 10% F/'*.Aa$,-.A" RQl"F*7" 1% ^" 0.1 % hQQ":3; UP" 0 250 500 750 1000 1250 1500 x (m) FA"!.G'-.*%" M$E$"PQRS""T'%12"U"O*.-1" RP"
H":#9':,)3&1%B':4*3&1 " E?"X>;Y" M3"$B,IOMP1,<3:N,%&,;"3:'1)'&)',.3B'=,,,, RQ R" \X],^1, cAQ" H,*=-."*<%-.0-("&.12%0-.%-/)" f.12%5&"6;-"Xp%Y" PAQ" RQ Q" RAQ" n" QAc" RQ UR" QAR" RQl"F*7" NmU1^5%"12:/-"q"X(-:Y" RQ UP" Q" ]Q" [Q" kQ" E?" n" o"r"]QlB"n"r"kQlB"E?"r"cAQ">;"" o" #$" 0 . 6 0 . 4 0 . 2 \X_,^1,, hQQ":3; UP" Z]E`[, 0 . 0 0 2 4 6;-"Xp%Y" f.5::-.".-G'5.-;-2&d" &.12%5&"6;-"&,.*':,"31;-.1"r"]"p%" ! "&.12%5&"6;-"&,.*':,"QARSl"?5^-/"V"cQ"2% " FA"!.G'-.*%" M$E$"PQRS""T'%12"U"O*.-1" R]"
H":#9':,)3&1%B':4*3&1 " M!$f"31;-.1" F/'*.-%3-23-"&-/-%3*?-"31;-.1" aXGb, M!$f"31;-.1" 85U.-%A"&.12%0-.%1/"" (5%&.5<'6*2"" EXacb, D*2:A"(-0-/*?;-2&" FA"!.G'-.*%" M$E$"PQRS""T'%12"U"O*.-1" RW"
Recommend
More recommend