“testing gravity” hinrich meyer uni. of ... -...
TRANSCRIPT
![Page 1: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/1.jpg)
DESY, 20.06.2008
“Testing Gravity”
Hinrich MeyerUni. of Wuppertal
withW. Bartel, B. Löhr, E. Lohrmann
and S. Schubert
![Page 2: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/2.jpg)
1.) Astronomy and Astrophysics
2.) Experiments in the laboratory
Outline:
![Page 3: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/3.jpg)
The are more things in heaven and earth,Horatio,
Than are dreamt of in your philosophy
Hamlet Act1, scene5
![Page 4: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/4.jpg)
anno 1632
![Page 5: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/5.jpg)
BBN successfully describing light element abundances in the
universeall but H
missing baryon problemFukugita, Peebles 1988
(BUT!!!!!)
Q: how much matter there is in the Universe???
![Page 6: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/6.jpg)
XMM NewtonESA X-RAY
Satellite
observingmissing
baryon fractionsolved??
Text
also spectral lines from intergalactic clouds
![Page 7: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/7.jpg)
virial lawE(kin)=-1/2E(pot)
Helvetica Physica Acta1933
![Page 8: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/8.jpg)
Sanders, 1996
![Page 9: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/9.jpg)
MOND works:howeverneeds
Neutrinos with masssee
Zhao 2007
![Page 10: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/10.jpg)
Vera Rubin 1970, with K. Ford
Rotation curves a generalphenomenon
Andromeda M31
![Page 11: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/11.jpg)
Spiral Galaxies
![Page 12: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/12.jpg)
dwarf spheroidals
![Page 13: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/13.jpg)
Sanders, Noordmeerearly type disks
2007
![Page 14: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/14.jpg)
Scarpa, Gilmozzi, et al. 2006, globular clusters
![Page 15: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/15.jpg)
In the solar system??
at least two dramatic effects
a: “Pioneer” anamoly
b: “fly by” effect
again seem to be ruled bya(0) about cH!!
![Page 16: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/16.jpg)
F(grav)=GmM/r2
Newtons law
rules all bound systems in the universe
a: change M , by introducing CDM
b: change accel. by introducing a(0) at very small accel. a MOND
actually, a(0) is about cH
c: adding an Yukawa like term at very small distance
d: consider G to be time dependent
![Page 17: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/17.jpg)
“MOND”Milgrom 1983nonrelativistic
“TeVeS”Bekenstein 2004
relativistic extension
Proposals, to change Newtons Law
![Page 18: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/18.jpg)
Thus, it is my personal opinion – and I am the only one responsible for it if proved wrong-- that if Newtonian dynamics fails below a0, this should be true irrespectively of the total field and one should be able to observe MOND effect also here on earth. For instance, I think a refined version of the Cavendish experiment studying gravitational forces in the horizontal plane should detect MOND effects.
R. Scarpa 2006
![Page 19: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/19.jpg)
Laboratory experiments
![Page 20: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/20.jpg)
fieldmass560kg
now only5-40kg
thesis work bySchurr, Walesh, Schumacher,
Kleinevoss1992 - 2002with H. Piel
Univ of Wuppertal
![Page 21: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/21.jpg)
![Page 22: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/22.jpg)
db =df constconst=10-9
(m/kHz)
thesisH. Walesch
![Page 23: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/23.jpg)
2006recent “G” results
![Page 24: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/24.jpg)
![Page 25: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/25.jpg)
![Page 26: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/26.jpg)
Earthquake signal in GRAVI
![Page 27: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/27.jpg)
TextTextText
Noisenicely
Gaussian,very
crucial
frequencyvs.
time
![Page 28: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/28.jpg)
“Gravi” at DESY works!!! (18.6.2008)127Hz in 22GHz (1/10 nm)
![Page 29: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/29.jpg)
![Page 30: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/30.jpg)
Goals with “GRAVI” at DESY
a: measurements in theMOND region
b: accurate determinationof big “G”
![Page 31: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/31.jpg)
blue line prefered by astrophysical considerations
![Page 32: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/32.jpg)
Schlamminger et al.Zürich
G measurment
![Page 33: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/33.jpg)
Eötwash
AdelbergersgroupSeattle
![Page 34: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/34.jpg)
equivalence principle
testSchlamminger et al.
2008
![Page 35: “Testing Gravity” Hinrich Meyer Uni. of ... - DESYaxion-wimp2008.desy.de/e30/e259/talk-20-meyer.pdf · I like to thank DESY for unbureaucratic support. Title: Microsoft PowerPoint](https://reader035.vdocument.in/reader035/viewer/2022063012/5fc849667d3f814c3f3b1f4f/html5/thumbnails/35.jpg)
fascinating timestesting
GRAVITYin the lab
I like to thank DESYfor unbureaucratic
support