国家天文台中德马普合作伙伴小组 The Partner Group of MPIf. R at NAOC 中德射电天文双边研讨会——用射电探测宇宙 Sino-German Bilateral Workshop on Radio Astronomy Cosmos Probed by Radio 2005 September 7 -14 th, Kashi & Urumqi, China Warm Welcome 热烈欢迎 本会议由中德科学中心全额资助 Fully Sponsored by Chinesisch-Deutsches Zentrum fÜr Wissenschaftstorderung
Cosmos vs Universe? ---- mistake and more thoughts
国家天文台中德马普合作伙伴小组 The Partner Group of MPIf. R at NAOC Sino-German Bilateral Workshop on Radio Astronomy Cosmos Probed by Radio 2005 September 7 -14 th, Kashi & Urumqi, China Original Idea for the meeting: 1. The Second Sino-German Bilateral Workshop on Radio Astronomy 2. 6 cm polarization system installed: More cooperation & Discussion 3. To express sincere thanks to all colleagues for long-term support Sino-German Science Center: Chinesisch-Deutsches Zentrum fÜr Wissenschaftstorderung Fully Supported!
Partner Group of MPIf. R at NAOC for Radio Astronomy http: //www. bao. ac. cn/bao/hjl/
Foundation of the partner group Purposes: find a way to tighten our cooperation with MPIf. R on magnetic fields of galaxies • Magnetic fields in nearby galaxies • Magnetic fields in our Galaxy – – – using pulsar RMs using RMs of extragalactic radio sources using 6 cm polarization survey -- the key project • Studies of pulsars and supernova remnants
Foundation of the partner group Purposes: find a way to tighten our cooperation with MPIf. R on magnetic fields of galaxies • • • 2000 Jan. 11: First idea of the partner group by R. Wielebinski 2000 Feb. 15: Application to CAS 2000 Mar. 15: Application to MPG 2000 Nov. 30: Formal approval from MPG, "the Letter of Appointment" for the group leader from the president of MPG 2001 March 26: Approval from CAS 2001 April 19: Official opening of the partner group R. Wielebinski visited NAOC 2001 Dec. 19: Grants from NAOC for initialization. 2002 January: Grants from MPIf. R every quarter. 2002 January: The partner group really starts running!
Foundation of the partner group Purpose: find a way to tighten our cooperation on magnetic fields of galaxies (also our Galaxy). • • • Have to be patient! 2000 Jan. 11: First idea of the partner group by R. Wielebinski 2000 Feb. 15: Application to CAS 2000 Mar. 15: Application to MPG 2000 Nov. 30: Formal approval from MPG, "the Letter of Appointment" for the group leader from the president of MPG 2001 March 26: Approval from CAS 2001 April 19: Official opening of the partner group R. Wielebinski visited NAOC 2001 Dec. 19: Grants from NAOC for initialization. 2002 January: Grants from MPIf. R every quarter. 2002 January: The partner group really starts running! It takes two years to make the group running!
Activisties of partner group: Scientific • • Exchanges 2001 Oct. 12 -Nov. 10: Jin. Lin Han visited MPIf. R: for work on pulsars and magnetic fields: some obs of PSR RMs 2002 May-July: Xizhen Zhang & Xianghua Li visited at MPIf. R 2002 July: Prof. Wielebinski/Dr. Axel Jessner/ Dr. Marita Krause visited NAOC (Beijing) 2002 July: Prof. Ernst Fuerst / Dr. Wolfgang Reich / Dr. Patricia Reich visited Urumqi and Beijing 2003 SARS problem! • • 2003 Dec. 15 th - 2004 Jan. 15 th: Prof. Jin. Lin Han and Ms. Hui Men visited MPIf. R: RM survey of strong polarized radio sources 2004 May 27 th-June 4 th: Prof. Wielebinski visits NAOC: – gave lectures on "The morphology of radio pulsars" and "Observations of warm/cold gas in galaxies" (also lectures in Beijing Normal University and Peking University); – gives instructions/advises for construction of 50 m & 40 m radio telescope in China. • 2004 Sept. 3 rd: Dr. Wolfgang Reich visited NAOC: new progress of 6 cm system
Activisties of partner group: Scientific Exchanges • • 2001 Oct. 12 -Nov. 10: Jin. Lin Han visited MPIf. R: for work on pulsars and magnetic fields -- p. 21: Invited Review 2002 May-July: Xizhen Zhang & Xianghua Li visited at MPIf. R -- p. 59 paper 2002 July: Prof. Wielebinski/Dr. Axel Jessner/ Dr. Marita Krause visited NAOC (Beijing) -- p. 10 proceedings 2002 July: Prof. Ernst Fuerst / Dr. Wolfgang Reich / Dr. Patricia Reich visited Urumqi and Beijing -- p. 10 proceedings 2003 SARS problem! • • 2003 Dec. 15 th - 2004 Jan. 15 th: Prof. Jin. Lin Han and Ms. Hui Men visited MPIf. R: RM survey of strong polarized radio sources 2004 May 27 th-June 4 th: Prof. Wielebinski visits NAOC: – gave lectures on "The morphology of radio pulsars" and "Observations of warm/cold gas in galaxies" (also lectures in Beijing Normal University and Peking University); – gives instructions/advises for construction of 50 m & 40 m radio telescope in China. • 2004 Sept. 3 rd: Dr. Wolfgang Reich visited NAOC: new progress of 6 cm system
Activisties of partner group: Coorganized Meetings • Sino-German conference on radio astronomy: Radio Studies of Galactic Objects, Galaxies, and AGNs – – – – 2001 Dec. : First Announcement Hosted by the partner group + RW organized German side 2002 July 18 -25 Xi'an, China 9 German guests and 5 distinguished guests from other countries, as well as 70 (yes!) domestic participants all enjoyed the hot spring and hot topics very successful meeting, deeply impressed to all participants earned a good fame from the Chinese astronomical society Proceedings published in 6 months! Available on web & ADS! • International Conference: The Magnetized Interstellar Medium
Activisties of partner group: Urumqi 6 cm system System preparations --- visits from China • • 2001 May-June: Hongbo Zhang visited at MPIf. R for receiver/antenna details 2001 Oct. 26: MPG grants for receivers (front-end) approved (55, 000 DM+MPIf. R matches) 2002 Oct. 1 st -Dec. 31: Mr. Xiaohui Sun visited MPIf. R (for survey software development). 2002 Nov. 25 th -- 2003 May 27 th: Mr. Maozhen Chen visited MPIf. R (for the construction of the 6 cm system). 2003 July 22 th - Oct. 22 th: Mr. Xiaohui Sun visited MPIf. R (for survey software development). 2003 Oct. 1 st - Dec. 20 th: Mr. Maozhen Chen visited MPIf. R (for 6 cm system assembly). The 6 cm receiver system: Mission
Activities of partner group: Urumqi 6 cm system 6 cm receiver system: Mission • 2004 May/June: Strong efforts to get it in site & extensive attempts for the installation H. Mattes, P. Mueller, O. Lochner visited for 3 weeks! Failed due to lack of some parts and the box-size problem. • 2004 August: Second extensive work at Urumqi – – – 5 th -- 25 th: O. Lochner, Mr. J. Klein & T. Lochner for installation. 12 th --29 th: Dr. Peter Mueller for software test 17 th -- 28 th: Dr. Patricia Reich for software test 17 th -- Sept. 2 nd: Dr. Wolfgang Reich for the test observations. 18 th/19 th: First light of 6 cm system: Beam pattern is great! 30 th: Tests results: system temperature ~20 k, one of the best over the world!
International Evaluation for the Partner Group of MPIf. R at NAOC for Radio Astronomy 2004 Oct. 18/19 th, Beijing Activisties of partner group: Urumqi 6 cm system
Urumqi 6 cm system --- Thanks a lot for all people involved! Now it is working!
Galactic plane polarization survey at 6 cm MPIf. R 6 cm receiver Urumqi 25 m telescope …. Will finish in 3 years. . . 总强度图 • Cooperation with MPIf. R • System hardware & software almost ok • No data at this frequency • Less affacted by foreground RM • Useful for CMB polarization 偏振强度图
First 6 cm images of large SNRs (by Urumqi telescope) 3 O x 3 O NAOC : J. L. Han, L. Xiao, X. H. Sun, C. Wang, W. B. Shi MPIFR : W. Reich, P. Reich & R. Wielebinski @2005 4 O x 4 O Color: Total intensity Counter: Polarized intensity Bar: magnetic fields 4 O x 5 O 4 O x 4 O 5 O x 4 O 3 O x 3 O
RMs of EGRs for the halo B-field Only about 1000 RMs available in literature upto now. . . We are using Effelsberg -100 m telescope to make a RM survey of 1790 sources, enlarge the cover density by a factor of three in most sky area……
RMs of EGRs for the halo B-field
Students in "Research Group of Compact Objects and Diffuse Medium" Ph. D students & their projects Master Students & their projects: • Ms. Min. Zhi Kong (since 2002 Sept. ) --- Accretion physics of black-holes in AGNs • Mr. Chen Wang (Since 2003 Aug) --- Pulsar observations • Mr. Xiao. Hui Sun (since 2003. Feb) --- 6 cm polarization survey on the Galactic plane --- Physical properties of ISM and magnetic fields • Mr. Wei. Bin Shi (since 2003 Sept) --- The structure of our Milky Way Galaxy --- 6 cm polarization survey on the Galactic plane • Mr. Jian. Wen Xu (2004 Sept) --- Studies of Supernova Remnants • Mr. Xiao. Peng You (since 2004 Sept) --- Pulsar timing and gravitational physics • Ms. Hui Men (since 2004 Sept) --- Radio continuum emission of NGC 2997 --- ISM in the Galactic halo Associated Ph. D students • Mr. Jiang. Shui Zhang (since 2003 Sept. ) --- Magnetic fields and star formation process • Mr. Hui Zhang (since 2003 Aug) --- Physics of pulsar magnetosphere
Galactic plane polarization survey at 6 cm Scientific Backgrounds and perspectives --- talk by Wolfgang Reich First publishable results --- Cygnus Loop --- talk by Xiaohui Sun Ground Radiation and Calibration tests --- talk by Chen Wang SNRs results --- talks by Jianwen Xu and Li Xiao Some IDV --- talk by Xiang Liu
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