'Vlbi' diaporamas de présentation

467 views • 31 slides

Everything you wanted to know about (e-)VLBI… …and more

Everything you wanted to know about (e-)VLBI… …and more. Zsolt Paragi, JIVE. Abstract. I will talk briefly about the Very Long Baseline Interferometry (VLBI) technique and what we can do with it. The European VLBI Network (EVN) will be shortly introduced. Then I will describe

431 views • 30 slides

(Spectral Line) VLBI

(Spectral Line) VLBI. Chris Phillips CSIRO ATNF. Quest for resolution. Maximum resolution of an instrument is proportional to length of longest baseline. Quest for resolution. Quest for resolution. ATCA. 6km. Atmosphere gives 1" limit without corrections which are easiest in radio.

427 views • 27 slides

The AuScope VLBI Array

The AuScope VLBI Array. John Dickey University of Tasmania 9 March 2007. This is part of a project for geodetic research funded under NCRIS 5.13:. Structure and Evolution of the Australian Continent. Chief Investigator: Michael Etheridge Project Scientist: Kurt Lambeck / Paul Tregonning

383 views • 26 slides

An idea of Space mm/sub-mm VLBI Array

An idea of Space mm/sub-mm VLBI Array. Xiao-Yu Hong ( ???) J un-Hui Zhao ( ???) Zhi-qiang Shen ( ???) Shanghai Astronomical Observatory (??????????). Outline. VLBI in China VLBI in the world Scientific requirement for Higher resolution VLBI in future

412 views • 24 slides

L.I. Gurvits, S.V. Pogrebenko, I.M. Avruch Joint Institute for VLBI in Europe

350 views • 22 slides

Parkes ATUC Report Nov 2007

Parkes ATUC Report Nov 2007. Stats. Scheduled observing time (2007) 85% Downtime (last 12 months): 1% system faults 3.1% high wind. Observer feedback. 25 reports last 12 months 9.7 for after-hours support 9.4 for quarters comfort - 7.4 for RFI (immunity from).

332 views • 21 slides

?? VLBI ????? ???????????? VLBI MEASUREMENTS FOR FREQUENCY TRANSFER

??????? 112 ???? 2009 ? 11 ? 6 ? ( ? ) ?????????. ?. ????????????. ?? VLBI ????? ???????????? VLBI MEASUREMENTS FOR FREQUENCY TRANSFER. ?? ?? 1 ??? ?? 1 ??? ?? 1 ??? ?? 1 ? ?? ?? 1,2,3 ? Thomas Hobiger 1 ??? ?? 1 1 ????????? 2 ?????? 3 ???????????. Content. Introduction Previous study

342 views • 17 slides

?? VLBI ????? ???????????? VLBI MEASUREMENTS FOR FREQUENCY TRANSFER

2009 ?? VLBI ????????? ?????????????????? 12 ? 5 ????????????. ?????????????. ?? VLBI ????? ???????????? VLBI MEASUREMENTS FOR FREQUENCY TRANSFER. ?? ?? 1 ??? ?? 1 ??? ?? 1 ??? ?? 1 ? ?? ?? 1,2,3 ? Thomas Hobiger 1 ??? ?? 1 1 ????????? 2 ?????? 3 ???????????. Content. Introduction

332 views • 17 slides

eVLBI Developments at Jodrell Bank Observatory

eVLBI Developments at Jodrell Bank Observatory. Ralph Spencer, Richard Hughes-Jones, Simon Casey, Paul Burgess, The University of Manchester. eVLBI Development at JBO and Manchester:. eVLBI correlation tests using actual astronomy data; both pre-recorded and real time data (see talk by Arpad)

278 views • 17 slides

AAS Special Session Getting to the Event Horizon: SgrA*

AAS Special Session Getting to the Event Horizon: SgrA*. SgrA*: Best Case for a SMBH. Stellar orbits approaching within 45 AU. Proper motions < 1km/s: M>10^5 Msol (Backer & Sramek 1999, Reid & Brunthaler 2004) Short time scale X-ray flares (300 sec rise). IF flares with modulation (a>0).

261 views • 17 slides

e-VLBI developments with the K5 VLBI system

e-VLBI developments with the K5 VLBI system. Koyama Yasuhiro *1 , Kondo Tetsuro *1 , Kimura Moritaka *1 , Takeuchi Hiroshi *1 , and Masaki Hirabaru *2 *1 Kashima Space Research Center *2 Koganei Headquarters National Institute of Information and Communications Technology.

339 views • 17 slides

298 views • 15 slides

Super Massive Black Holes

How do cosmic accelerators work and what are they accelerating? What collimates jets and how do jets evolve and interact with their host galaxy?. Super Massive Black Holes. M 87.

296 views • 15 slides

Celestial Mechanical Experiment in Phobos Soil project. Ultra stable occilator on S/C board

Celestial Mechanical Experiment in Phobos Soil project. Ultra stable occilator on S/C board. Linkin V., Kosov A., Gotlib V., Zotov V., Korogod V., Skulachev D., Strukov I. IKI RAN. Scintific Implication. Phobos, Mars Efemerids Phobos internal structure Asteroid Masses

218 views • 11 slides

21 st Century VLBI

244 views • 11 slides

The 40m YEBES RT and the HSA

238 views • 10 slides

Review of developments in Australasia and mainland Asia

Review of developments in Australasia and mainland Asia. Steven Tingay Swinburne University of Technology Next Generation correlator meeting, JIVE 27 - 29 June, 2006. http://astronomy.swin.edu.au. Current correlator developments in Australasia CABB (Ferris: Day 1)

202 views • 8 slides

VLBI Report LBA Operations & eVLBI

VLBI Report LBA Operations & eVLBI. Tasso Tzioumis ATNF May 2008. Operations - transitioning. Evolution: S2 tapes + LBA correlator - Stopped in 2007. Disk-system + software correlator - Main user system eVLBI - in development. Already offered to users. Software correlation

191 views • 8 slides

The Event Horizon Telescope: 1.3mm VLBI of M87

Abstract

226 views • 1 slides