7
TeV 腋腈腊腉腛腞腘腚腖腎 G347.30.5 腜腓腕腢腁腇腠腗腍腄腟腑 膪膆臠膑臠膑膄膑膦膙膊臮臞腁腏膑膦膙膽 4648602 膪膆膹臓臂膟腀腔臨腄 e-mail: [email protected] 膬膘膞膏腻 (SNR) 腟腀 膃腺膅腝膸腕腘腇腥腴膫膟腞腈腕 10 15 eV 腲腶腞腨腭腰腪腂腧膩腈膝膶腝 腗腇腘腞膕腜腸膤膇膖腙腆腥腚膊腉腤腦腘腇腡腒腁 膰腝腓腞膕膝膶腙腆腥膿膐腌 SNR 腝腊腇腘腸 膤腐腦腘腇腥腋腛腈腋腚腇腈膻膨腟腀 膇膌腡腙膧腍腜膂膹腧腢腔腦腘腍腡腑腔腁 膑腔腕腟腳膎腷膪 膠膶膐膀膟腧膾腇腔膞腽膶膐腵腼膣腧膋腇腀 膦膿膅腋腤膼 1 kpc 腞膁臀腝腆腖腘 TeV 腩腱腯膟 SNR G347.30.5 腚膡膈膍膾腑腘腇腥膶膐腩腬腞膥膌腧膺腤腋腝腑腡腑腔腁 腏腦腤腞膶膐腩腬腟膳 膱膮 X 膟膷膔腞膄腽膶膵腚膳膗腝臂腇膡腾腧膒腑腀 膼 200 膦膿膓臃腞膶膐腵腌 X 膟腊腣腠 TeV 腱腯膟腞腮腂腫腝膴膚腑腘腇腥腏腚腟腀 SNR 腚膶膐腵腞膡膈膍膾腌膿膐腸膤腞膆腙腆腥腹膲膜腧 膒腑腘腇腡腒腁 腏腞腏腚腋腤腀 膑腔腕腟腸膤腐腦腔膿膐腞膢腨腭腰腪腂腧膼 10 48 erg 腃腸膤膉臁 0.1腅 腝膡膯腄 腚膙膭腑腀 膿膐腸膤腞膻膨腝腊腎腥腼膣膮腜膛膼腧膽腉腡腑腔腁 1. 腅腀腆腃 1.1 腞腘腚腖腎腂腌腝腛腄腏腒 臩臌臏膶膎 (SNR) 腣腀 臩臌臏臷臸腠腮腙腛膡 臎腐腲腖臇膣臶腢臗腊臏膔膠膔腠臧腒腀 膮腊腙 腖膏臋膯臚腴腬腚腮腈腠腟腙腖臮臞腴腇腇腩腓腁 SNR 腠膕腓腱腐腩腑腩腟膦膙腺腂腾腢臥腜膴腬 臠腋腟腬腢腢膃腚腣腀 膅臦臕腢膘膨腠腩腚腳腱至 腴膍腓腱腏腝腜腓腁 膅臦臕腝腣腀 膅臦膠膔腴臺 腥膫腙腛腇腱膱腶腼膀腷腂膸腢腏腝腜腀 腕腢臐 臞腣臀腠膸腭臯膸腜腓腁 膺腖腘腢膞膋膢腠腣腐 腩腑腩腟腶腼膀腷腂腴腬腙腖膅臦臕膸腊腘腛 腇腱腳腍腜腓腊腀 膸腴膱腇腶腼膀腷腂腩腜膈臜 腓腱腏腝腣腞腏腜腬膉臵腟腳腍腜腣腆腰腩腔腵腁 腆腰腦腲腖膸腭臯膸腴腀 腞腏腉腜膜腌膈臜腒腛 腭腱膗膯腊臼腜腓腁 腖腗腒腀 臯膌腴腬腙腖膅臦 臕腣膞膋膼臉腠腮腙腛臍腴膝腎腯腲腛腒腩腈腖 腫腀 膅臦臕腴臫臑膓臛腒腛腬腕腲腊腆腎腞腏腉腯 腖腬腢腟腢腉腣腳腉腰腩腔腵腁 臮臞腉腯膅臦臕 腊臄腛腇腱腏腝腴臤腱腖腫腠腣腀 腆腝腜臅腧腱腮 腈腠膔臑臭腟臁臢腴腇腱腢腜腓腊腀 腕腢臉膳腣 臹臊腠臻膿腟膾腠腟腙腛腒腩腇腨腝腵腞膤臄腓 腱腏腝腊腜腋腩腔腵腁 腕腢腖腫腀 腏腲腯腢膅臦臕 腊腞腏腜膈臜腐腲腛腇腱腉腊腀 膅臦臕腢臝膵腊臸 膧腐腲腛膁腢臠腋腟至腗腙腖腢腜腓腁 腕腒腛腀 膅臦臕腢膈臜腠膴腬臠腋腟膰膥腴腒腛 腇腱臮臞腊 SNR 腗腝腇腳腲腛腇腩腓腁 腏腢臒腣 膪腌 1950 致臟腉腯腀 Iosif Shklovsky 腭臘臔膭臣 腯腠腮腙腛臬臆腐腲腛腇腩腒腖腁 膞膋臲膅臦臕腢 臙腶腼膀腷腂腴膂膻腓腱腖腫腠臼腟腶腼膀腷腂 腴膛膚腓腱腏腝腊膉臵腟臮臞膩臈腣腀 膞膋膢臲腜 腣臩臌臏臷臸腠腮腱 SNR 腒腉腆腰腩腔腵腁 腕腲 腠腀 SNR 腢臇膣臶腣腝腛腬膬腇膈臜膖腜 腬腆腰腩腓腁 腕腢膷臖腪腣臇膣臶腢膼臉腠自腡 臺腤腐腲腖膸腊膇臰腬自腡腱膔腠膅臦臕腝腒 腛臃腟膱腶腼膀腷腂腴膐臱腓腱腝腇腈腬腢 1) 腀 腏腲腟腯膞膋膅臦臕腢腶腼膀腷腂腹腽腸腻 膀腬腈腩腌臒腜腋腱腢腜腓腁 97 5 287

TeV G347.3 02.2 SNR 4 ˘ˇˆ˙G347.3 0.5 ˝˛˚˜ ! "#$ %& ’()*+,-./ 0˙12 $34 5 2 ˘ˇ5678/ 9:;? G347.3 0.5 ˚ %&@AB$! CD@EFG˚*7$ 3 SNR H@7 1 / ˆI/ J K5 "CD %&

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Page 1: TeV G347.3 02.2 SNR 4 ˘ˇˆ˙G347.3 0.5 ˝˛˚˜ ! "#$ %& ’()*+,-./ 0˙12 $34 5 2 ˘ˇ5678/ 9:;? G347.3 0.5 ˚ %&@AB$! CD@EFG˚*7$ 3 SNR H@7 1 / ˆI/ J K5 "CD %&

TeV �������� G347.3�0.5 �� ����������

� � � ��������������������� 464�8602 �����������e-mail: [email protected]

����� (SNR) �� ��� �������� 1015 eV������������ �!���"#$%&'()�*+,-.��/01 2�3�"� ()�456 SNR�7��$%8.���9:�9*��;<�� &=/(>?#@A�BC.�?/DC1 EC �FGHIJ 5K��L�C�M 5NOP�Q�� R49-S 1 kpc �TU�)V� TeVWXY�SNR G347.3�0.5 *Z[\LD��� 5W]�^=�_-9�D/DC1 `.-� 5W]�abc X�de�fM g*ah�i�Zj�kD� S 200R4lm� 5N6 X�7no TeVWXY��p�q�rsD���`*�� SNR* 5N�Z[\L645$%�t()�uvw�kD��/01 `�`*9-� EC �$%8.C45�x������S 1048 erg y$%z{0.1|�Z}~ *��D� 45$%�;<�7��OPc#�S��,/DC1

1. ����

1.1 ���� !��"#����� (SNR) �� �������� !

"#$%&'()*+�,-,��./� 0+�%1234567�8�9�%�5::;<=SNR�><?#;@;9��ABC)DEF6�G96))H7�� IJK)LM�;7N?O5P�<?QRE<= IJKR�� IJ-,5STU� :?VWXYZB�[)QRE� \)]��^�[_`[E<= a%b)cde��#;@;9WXYZB56�%IJK�[+b :?NfE<+� �[5V:WXYZB;Egh<?QR�iQE6jk9NfE�lm;no=lmp$%[_`[5� iQqErsgh/ _?t3+u�E<= %v/� `w56�%IJK�cdxy��� z�5{|}$ /;8%~� IJK5����/ 6\$+ �iQq}�%6)9)q�Nqm;no= �q}IJK

+� :?QR5�?%~��� lRE��?�8�,��9��5�:?)E<+� \)y�������9���9� /;:�Roi��<?QR+EG;no= \)%~� Q$})IJK+iQEgh#$ :?q+� IJK)��+��#$ ��)�G9Ov�%)E<=\/ � IJK)gh�F6�G9��5/ :?�+ SNRvR:N$ :;<= Q)���s 1950��q}� Iosif Shklovsky _����}��� � #$ :;/%= cd¡IJK)¢WXYZB5£¤<?%~�u�9WXYZB5¥¦<?QR+jk9�§¨�� cde¡E��������? SNR/qlm;no= \$�� SNR)&'(�R 6©�)�:ghªE6lm;<= \)«¬­�&'(�)xy�®¯S°#$%�[+±²6®¯�?,�IJKR/ ³�9VWXYZB5´µ<?R:86)E1)� Q$9}cdIJK)WXYZB¶·¸¹Y68;s��EG?)E<=

º 97» º 5¼ 287

Page 2: TeV G347.3 02.2 SNR 4 ˘ˇˆ˙G347.3 0.5 ˝˛˚˜ ! "#$ %& ’()*+,-./ 0˙12 $34 5 2 ˘ˇ5678/ 9:;? G347.3 0.5 ˚ %&@AB$! CD@EFG˚*7$ 3 SNR H@7 1 / ˆI/ J K5 "CD %&

1.2 ����� TeV��� SNR

���������������� �������������� ����������� ���� !��"#�$ �%&'()�* X�*����+,��� -���.��&/01��2345�6� 7/86�9��:�����;#��;#������<,� �;�=>&�� SNR ?SN1006@ �����:��A,��� X��BC��2)� ���D-E&>�-6��F��<��� =G>&� SN1006���;DH TeV IJKLMNOPQ(R8PS '()�TBC��� SNR��;��U��V�-6��GW��<��3)� ���� ���X���V��;�DH6,�'()��� <Y� SNR��TBC��&><5Z���� �;��;[\����]��^_� �;��`&a�*b;6 cd!�[�Me8f0"g�h6Z�V\<5Z� =<\��;6#i[������&>&T.�j$#�a��C��_>�,� ������;�'()���+,���� 10klP� %,�&]6m'�[�no(p;)�L*q�%#W�r#\<5Z� +sr� SNRt\� ?,@ 6#�u-./v�#>w\� 4�4�������:����-6���<5Z����xy� z0{PK|}�~0�����

N(��b1�� CANGAROO�� ��� �?G347.3�0.5@ ����&�;DH6�s���'()��BC�<��4)� -��2�#�������3=4��56�V\<����=��'()�.����7<��8�4��#>-6�3=9�:��`�6�\�T��;DHY6,�6� :-��p�;�[�#;>&]�<��&>�=>�V�-6�,� -���=>&��CANGAROO1���?@�As&_�<5Z� -56���,���xTBC�#DE�� SNRD��u-.�;'{�<�,���������.��&�F,�-6�,�

2. G347.3�0.5 CO��� �

2.1 ������ ����������:-������ GH�|K{�(n�{�I�0J���K��2� ?#Z&Z@ ��1���!>& G347.3�0.5D��.��<��� ?#Z&Z@ �[E&���LM�; (CO)

��+,��NO����.�,�-6�� ;_P�>�;��Q�R�-6���<,� <�� �;�6.�� S�.��� �7<��8TTU,�-6���<,� ��.���?#Z&Z@ �[���V�vW ¡¢�£6�&¤4�<��� -¡¢�� ��V��%D��X 240. I180.�� 60.S� �¥D��X10.�� 20.Y¦� 2§8�¨©|lª�.���T�� U���,`&.��«Z��[¡ 100\]¬:.�/01�^&><, I5)

h�� PASJ Vol. 53, No. 6, 2001S�

_ 1 X�­� ROSAT�[���� � G347.3�0.5 X�®.�Q I©No{¯08° ROSAT

}0�o±/01²0{S 6� #Z&Z1���[� CO (J³1�0) �;��®.�Q I�(P}S )l´�^µ�T� CO�Q�:�¶�.�]�=>&{·OP8�¸��.¹11 km s¹1��¹3 km s¹1<�`��&^���T�� -�� SNR6X� cd!�&>��.��� %,�� xa�(P}N²8� �(P}pº�»� 4 K km s¹1 .

�¼@ 2004b 5¼288

Page 3: TeV G347.3 02.2 SNR 4 ˘ˇˆ˙G347.3 0.5 ˝˛˚˜ ! "#$ %& ’()*+,-./ 0˙12 $34 5 2 ˘ˇ5678/ 9:;? G347.3 0.5 ˚ %&@AB$! CD@EFG˚*7$ 3 SNR H@7 1 / ˆI/ J K5 "CD %&

2.2 ���� SNR���������� ���� ������

�4������� � G347.3�0.5���� !"#$� �%&'()*+,-./�0�12�$�3 4 5� 2������5678/9 :;<�= �$�3 �>?� G347.3�0.5��%&@AB$! C�D@EFG�*7�$�3 SNRH@7 �� 1/�� I/�J�K5"CD� �%&LM)*�0�� NO347.3

/� PO0.5/Q7@RS!T7U6V*WX�YZ! �[�\ 1�3�WX@�ROSAT6)

] ASCA7)*^ X_`a�6Z!bFc�SNR X_d�ef6V�gh$! �[3 ��� 67ij*WX �k��I/�J�K� 5"!Y� X_D CO+,�0�lm�� no�p[�D@qG7�$�3 COr_s/t�uvw�� XMM-Newton`a�6Z!bFc�d8)�TSC X_t�uDxy$! �[ �\2�3 \ 1�� z_./�$!{11 km s{1GF{3

km s{1|e�%}��0�p$�Y5[3�./�x~)*�����K9)���$!��GF�����[CD� 0.5 kpc GF 1.6

kpc �n�$�[3 COr_s/�05"�CU�� X_s/� ������ !� SNRX_dQ7�ef6V�gh$! �[3 \ 2

\ 2 \ 1D�� CO��s/����'\�� X

_`a XMM-Newton�6Z!bFc� X_s/�0 �����J�K�8) ����Y3CO������K ��_� �\ 1���3�%&�t�uvw�\�� A, B, C, D

5p$!�C3 ��� CANGAROO�6CTeV}��_n )s/�0�¡_����5p$!�C3 TeV}��_�����¢£�¤¥�0GF¦�$�Y5� TeV

}��_§¨������K� ����,©�ªc«c 55¬, 7¬3

\ 3 �­\� SNR�AB[C�%}�V�9./®�� ���¯°��®� ������ � XMM-Newton�6C X_d �����J�K� ����Y3 COs/�0�ªc«c;<±�� !�²u�K�z_./{14 km s{1GF {11 km s{1�5��$!bFc�Y5� ������K�³GF 2, 4, 6, 8, 11, 15, 20, 25,

30, 35 K km s{1. �´\� 9./®�@�¤�µFcCt�u CA¶ �NO347.05/� PO{0.40/� �·�²u�K�¸¹$�Y3

º 97» º 5¼ 289

Page 4: TeV G347.3 02.2 SNR 4 ˘ˇˆ˙G347.3 0.5 ˝˛˚˜ ! "#$ %& ’()*+,-./ 0˙12 $34 5 2 ˘ˇ5678/ 9:;? G347.3 0.5 ˚ %&@AB$! CD@EFG˚*7$ 3 SNR H@7 1 / ˆI/ J K5 "CD %&

�� � 1��� CO���� XMM�� X�� � � CANGAROO� TeV��������������� X���������������� �!"#�� A$D�%&� CO�!"#�'(&)�*�+ ,-�� TeV������� CO���!"#�'� .D/ �01�2345'(&)�*�+ 6� 47�8�� 9:� 0 km s;1 -;11 km s;1��<�:�=�> ����� ?-@*&�+ 6@-A��CO!"#��B) X!"#��C � *��D@-��E&)FG�H��46��� �IJ� SNR�KL�K&)D��� -�� X

� M,@)�H6��N�&)�H�OP-@*�+ 6@�Q� CO� X��8��I��<� SNR��?-@H6��RS*�10)+ � 3

�� 9:� ;14 km s;1 - ;11 km s;1 ��T��I�U���%&�����+ 6��T��� CO!"# C��C�VWX��I�U�:�� 4$5 km s;1>5YZ[&)�H�I�?-@*&�+ � 3�!"# C��C� COU\#[]���)� ^�%&����:��YZ[&)

�H_���+ 6�:�YZ[�� `7��� 20

km s;1�a&)�*�+ 6@�Q��b� COcdeZfg]��� IC44311)hW2812)��i�<� SNR��?-@� SNR�j��IJ�klm���- 7no�p7,@)�*�+ 66�q:,@��I�U�r���� 1,000s�t� km ;1u��?v�-@� � 1��P-@H��� -wx&�y�'(&*�+

3. � �

3.1 �����z{�|&��I�U�}�~��� ��7N

��RS*�+ *�� SNR����?�&��+6@*��� �}X��7����� 6 kpc����RH��4�����&�13)+ & &� 7�)���"�� SNR���Xk��RH�IJ�42�q:,@)�7�_����:��;6

km s;1��H�� �X���� 1 kpc�7S*� �� 4������+ � 4����� ��� 1 kpc���� 6 kpc���D@�@���)� ������01�9:�����!�X�%&����

� 4 ���� ����� -?�!��+ ��{���]� H��"�0114)� ¡�s�%&)RH+ ¢#£���{���C+ G347.3�0.5� 1 kpc�RH���01� 6 kpc�RH���01� s��01� D@�@���)� ��¤�'��{�&)�H�¥}&����{�:��D@�¦§¨ -?����9�C_��©#£�%&)RH+ ���ª��ª��i��ª«�©�¬��%&� D���s��01�$�­�� G347.3�0.5���� 1 kpc�&����01�£�� D@�@%�+���� G347.3�0.5��C ��®¯347.3�� ��� s� -����9:����+ RH9:��°&)����±$��² �³����´���� ����� z{���� SNR�´��� (10$15 kpc) �RHµ%¶�&±�·��¸� 66��³������¹º�%&)RH+

»'¼( 2004) 5¼290

Page 5: TeV G347.3 02.2 SNR 4 ˘ˇˆ˙G347.3 0.5 ˝˛˚˜ ! "#$ %& ’()*+,-./ 0˙12 $34 5 2 ˘ˇ5678/ 9:;? G347.3 0.5 ˚ %&@AB$! CD@EFG˚*7$ 3 SNR H@7 1 / ˆI/ J K5 "CD %&

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6 kpc ������� SNR�������������������� !�� �� 1

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� � � �

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Molecular Gas Interacting with the TeV

Gamma-Ray SNR G347.3�0.5

Yoshiaki MORIGUCHI

Department of Physics and Astrophysics, Nagoya

University, Chikusa-ku, Nagoya 464�8602, Japan

Abstract : Supernova remnants (SNR) are

believed to be major sites of acceleration of

Galactic cosmic-rays whose energy is ¹1015 erg.

In particular, it has been a big issue whether

supernova remnants emitting TeV-gamma rays

are sites of proton acceleration or not. We

present new CO observations of molecular gas at

1 kpc distance interacting with the TeV

gamma-ray SNR G347.3�0.5. Dense molecular

gas toward the TeV-gamma SNR is a good

predictor to verify the existence of cosmic-ray

protons. One of the molecular clumps of ¹200

solar mass coincides with the gamma-ray peak,

providing strong evidence for proton

acceleration. We have estimated the total energy

of accelerated protons to be about 1048 erg,

which corresponds to an acceleration e$ciency of

about 0.001, posing an observational constraint

on the proton acceleration.

º 97» º 5¼ 293