eavn 2018 eavn vlbi
play

EAVN 2018 EAVN VLBI - PowerPoint PPT Presentation

EAVN 2018 EAVN VLBI Tianma65 NRO45 KaVA Urumqi26 2018B (2018/10 ~ 2019/1), 2019B (2019/1 ~


  1. EAVN ����� 2018 �� EAVN ��������� VLBI ��� ��������� ���

  2. Tianma65 NRO45 KaVA Urumqi26 �������������� • 2018B (2018/10 ~ 2019/1), 2019B (2019/1 ~ 2019/6) • 43GHz: KaVA+ 天馬 + 野辺山 • 22GHz: KaVA+ 天馬 + 野辺山 + ウルムチ (2018B は KaVA+ 天馬のみ ) • 1Gbps, 片偏波 , KJCC 相関 • KaVA 公募時間 (250hr/ 半年 ) のうち 100hr を EAVN 枠(野辺山は 50hr )

  3. EAVN 2019A ����������� Table 9: Baseline sensitivity of EAVN. K-band Q-band KVN VERA TM65 NRO45 NS26 KVN VERA TM65 NRO45 KVN 6.1 7.7 1.7 2.8 3.2 9.1 13.6 2.2 5.2 VERA – 9.7 2.1 3.6 4.1 – 20.2 3.2 7.8 TMRT65 – – – 0.8 0.9 – – – 1.2 NRO45 – – – – 1.5 – – – – Note: 1 σ baseline sensitivity values are listed in unit of mJy, which assume an inte- � ��� mJy. �� 256MHz, 120sec �� Table 10: Image sensitivity of EAVN. Array K-band Q-band N ant N bl KVN 3 3 320 480 VERA 4 6 360 750 KaVA 7 21 155 268 KaVA+TMRT65 8 28 60 85 KaVA+NRO45 8 28 89 169 KaVA+TMRT65+NRO45 9 36 42 65 KaVA+TMRT65+NSRT26 9 36 44 – KaVA+TMRT65+NSRT26+NRO45 10 45 35 – : N and N are the numbers of telescopes and baselines for each arra � ��� microJy/beam. �� 256MHz, 4 ����

  4. �OV�����B����a • ����2�������+��� • �N • +����(+�Q • �L����K���TK� • R���A@�� )� +��Q • �� • ����.��Q ��)03��))08 • 3��1�:5/�)� +��Q • 3��1�:5�697/�)� (��Q • ���.1������������ • �+���������Q ��������� �421�������41���� • �L,���K(��MK+ • R���A@�� �������,���Q

  5. (����)/����(�������01 ������

  6. ���������������� � Obs. Date UT time Target Freq. KaVA Tianma Urumqi NRO Hitachi Takahagi Medicina Code (M87) a18068a 3/9 13:20 – 20:20 M87 K � � � � � � a18069a 3/10 12:15 – 19:15 M87 Q � � � � a18085a 3/26 12:45 – 19:45 M87 K a18087a 3/28 11:05 – 18:05 M87 Q � � TeV flare � � a18088a 3/29 17:45 – 23:50 SgrA Q � � � � � a18100a 4/10 10:45 – 22:45 M87+SgrA K M87 a18101a 4/11 10:40 – 17:40 M87 Q � � � � � � � � � a18110a 4/20 10:35 – 22:35 M87+SgrA K EHT 2018 � � a18111a 4/21 10:00 – 22:00 M87+SgrA Q � � � a18117a 4/27 09:35 – 21:35 M87+SgrA Q � � � � � � a18118a 4/28 10:00 – 22:00 M87+SgrA K � � a18123a 5/3 09:15 – 21:15 M87+SgrA Q � � a18124a 5/4 08:10 – 16:10 OJ+CenA Q a18127a 5/7 08:25 – 20:30 M87+SgrA Q � � � � � � � � a18128a 5/8 08:25 – 20:25 M87+SgrA K � a18140a 5/20 14:30 – 20:30 SgrA Q a18141a 5/21 07:40 – 14:40 M87 K � � � � � � a18143a 5/23 02:00 – 22:05 Mrk501+ K ��2�1 22GHz ���A�����8�����E������0

  7. ���������������� 2Gbps (512MHz BW), 1hr integration 43GHz 160 VLBA VLBA: 10 EVN EVN: Ef, On, Ys, Nt 140 EAVN HSA EAVN: KaVA, TM, NY Sensitivity (Micro Jy/beam) 120 22GHz VLBA: 10 100 EVN: Ef, Mc, On, Tr, Nt, Ur, Ys, Hh, Sv, Zc, Bd 80 EAVN: KaVA, TM, UR, NY, HT, TH, KS 60 6.7GHz 40 VLBA: 10 EVN: Ef, Mc, On, Tr, W1, Nt, 20 Ys, Hh, Ir EAVN: VERA, KUS, TM, KM, 0 6.7GHz 22GHz 43GHz HT, TK, KS, YM, US Frequency band • EAVN � 6.7-43GHz ������������������ • => JVN �����������������A�

  8. ����� VLBI: ����� • EAVN ��������� • VLBA ( � ), EVN ( � ), LBA ( � ), EAVN ( ��� ) ��� • EAVN+Italy (EATING VLBI) ����� • EAVN ���������� VLBI ���� • ����� EAVN ���������� • VLBA+EAVN @ K/Q? (W. Brisken (VLBA director) @ EVN- 2018 symposium) • ������ : SKA, ALMA, EHT, FAST, TMT, multi- messenger/time domain

  9. Global VLBI ����� • High resolution • D>10000km, λ/D < 140μas @ 7mm • High sensitivity • Micro-Jy sources • Densely-sampled uv coverage • High-DR imaging • High position accuracy • Astrometry for distant sources • Time domain • Transient, micro-quasars, SgrA*, 24hr monitor • North-south expansion • North-south resolution. Explore the southern sky • Synergy with SKA, EHT, CTA, TMT, ngVLA, GW, Neutrino

  10. ��� 43/22GHz ���� • ������������������������� VLBI �� ��� EHT@230GHz, GMVA@86GHz � • ������������������� 10 ������� • ���������� • EHT ���������� 43/22GHz VLBI ��������� • 86GHz ��������������������� • ��� : 43GHz: Urumqi, ALMA Band-1; 22GHz: �� , SKA, ngVLA • EAVN ���������� Chael et al. 2018

  11. ��� 22/43GHz � 43GHz 22GHz

  12. ������������ • Common sky (EAVN, EVN, VLBA, LBA) • UV coverage: ideal examples • UV coverage: practical/realistic examples • Quick case study: M87 imaging simulation

  13. Common sky (43GHz, EL >10 � ) DEC = 40deg DEC = 12deg DEC = -30deg ALMA ALM VLA VL GBT GBT VLBA_S _SC VLBA_P _PT VLBA_O _OV VLBA_NL _NL VLBA_M _MK VLBA_L _LA VLBA_K _KP VLBA_HN _HN VLBA_F _FD VLBA_B _BR Mopra Mo AT ATCA Me Metsahovi Yeb Yebes es On Onsala Effelsberg Ef Sa Sardegna na Noto No TNR NRT NR NRO45 Ur Urumqi qi Ti Tian anma6 a65 Se Sejo jong ng KVN_T N_TN KVN_U N_UL KVN_Y N_YS VERA_I _ISG VERA_O _OGA VERA_I _IRK VERA_M _MIZ

  14. Common sky (22GHz, EL >10 � ) DEC = 40deg DEC = 12deg DEC = -30deg VLA VL GBT GB VL VLBA_SC VL VLBA_PT VLBA_OV VL VL VLBA_NL VLBA_MK VL VL VLBA_LA VLBA_KP VL KP VL VLBA_HN VL VLBA_FD VLBA_BR VL Cam Cambridge Jodrell Jo Ha Hart To Torun Metsahovi Me Yeb Yebes es Onsala On Ef Effelsberg Sardegna Sa na No Noto Me Medicina Zele Ze lenc nchuk hukskaya Ba Badary Sv Svetlo loe Ti Tidbinbilla Ho Hobart Ceduna Ced Parkes Pa Mo Mopra ATCA AT TN TNRT Ur Urumqi She Shesha han Ti Tian anma6 a65 NR NRO45 Gifu Gi Ka Kashima Ibaraki Ib Sejo Se jong ng KVN KVN_TN KVN KVN_UL KVN KVN_YS VE VERA_IS ISG VERA_OGA VE GA VE VERA_IR IRK VE VERA_MIZ IZ

  15. 43GHz EAVN (KaVA,TM,NRO,UR) EVN VLBA Dec=40d Dec=12d

  16. 43GHz EAVN+EVN EVN+VLBA EAVN+VLBA Dec=40d Dec=12d

  17. 22GHz EAVN+EVN EVN+VLBA EAVN+VLBA Dec=40d Dec=12d

  18. Realistic examples (43GHz, Dec 40d) EATING w/ UR EATING w/ UR+MK EATING (operational) Beam pattern

  19. Realistic examples (22GHz, Dec 40d) Current EATING (w/ UR) +TNRT +Zelenchksukaya +Zelenchksukaya +Badary +Badary +TNRT

  20. Quick imaging simulation case study • M87 (Dec=12d) @ 43GHz • 1. Current EATING • 2. EATING + UR + MK • Model: full-track VLBA 43GHz map • Impact on jet base morphology • Impact on kinematics (component identification) • Impact on counter-jet

  21. UV coverage Amp-distance Dirty map EATING (w/o UR) EATING w/ UR + MK

  22. EATING (w/o UR) EATING w/ UR + MK

  23. EATING (w/o UR) EATING w/ UR + MK + + Mopra Mopra

  24. ��������� • EAVN/EATING+α => ���� ( ���� ) ������� • ��������������������������� �� component identification( ���������� ) ���� • VLBA ��� => ��������� ( �� VLBA �� common sky ��� EA � common sky ����� ) • VLBA 1 �������� • EAVN+MK ������������ K/Q ������ L/S, C, X, W �� EA ��������� • 22GHz • ���� uv ������� • ���� common sky ~2 ���� (DEC �� )

  25. ��� • EAVN �� ( �� ) • �������� (22/43GHz) • JVLA/VLBA ������� • ������ : JVN �������� (6.7GHz, 22GHz) • ����� VLBI �� ( �� ) • 43/22GHz, BH jet ������ • EAVN/EATING+α: ��������� • VLBA/EAVN �������

Recommend


More recommend