A True Story of Astronomy in the Desert<br />Nicole Gugliucci<br />for the PAPER Team<br />PAPER is a UVa/Berkeley/NRAO/UP...
Why do radio astronomers hide from people?<br />
Why do radio astronomers hide from people?<br />
Why do radio astronomers hide from people?<br />
The new [epoch of reionization] map may carry more information than even the cosmic microwave background radiation.<br />-...
http://people.su.se/~gmell/lib/exe/fetch.php?cache=cache&media=xy_100mpc_406.gif<br />GarreltMellema<br />8<br />
Z=9 or<br />556 million yrs<br />after BB<br />Z=8 or<br />652 million yrs<br />after BB<br />Z=7 or<br />778 million yrs<...
Signal vs. Foregrounds at 140 MHz<br />MW synchrotron<br />(Power)<br />Point Sources<br />MW free-free<br />E-gal free-fr...
Signal vs. Foregrounds at 140 MHz<br />MW synchrotron<br />(Power)<br />Point Sources<br />MW free-free<br />E-gal free-fr...
Seeing in the Dark<br />The 21 cm or 1.4 GHz transition marks a protected band for radio astronomy, due to the importance ...
Array, or, Interferometer<br />Actual imaging of the neutral hydrogen will take many more times the sensitivity of current...
17<br />More on Interferometry<br />1-D Fourier Transforms<br />www.bruker-biospin.com<br />
18<br />More on Interferometry<br />1-D Fourier Transforms<br />www.bruker-biospin.com<br />2-element response<br />Prof. ...
19<br />More on Interferometry<br />1-D Fourier Transforms<br />www.bruker-biospin.com<br />+<br />+<br />+…<br />Prof. Da...
20<br />More on Interferometry<br />1-D Fourier Transforms<br />www.bruker-biospin.com<br />+<br />+<br />+…<br />Prof. Da...
21<br />More on Interferometry<br />1-D Fourier Transforms<br />www.bruker-biospin.com<br />+<br />+<br />+…<br />Prof. Da...
What was the early universe like?<br />
PAPER System<br />
With 32 antennas…<br />
The Ionosphere<br />http://madrigal.haystack.mit.edu/models/IRI/index.html<br />http://radiojove.gsfc.nasa.gov<br />
Astronomy in the desert…<br />Far away from humans for next generation radio telescopes<br />PAPER is poised to make the f...
Thank you!<br />
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WV Governor’s School Lecture

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Lecture for the 2011 West Virginia Governor's School at the Green Bank Observatory.

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  • Audience participation
  • These all give off signals
  • So, we protect ourselves by location
  • And we’ve used this site to our advantage
  • What are we looking for with this weird looking contraption?
  • Next, animation
  • And if that doesn’t work…
  • So so faint…
  • Not to mention, human-made signals
  • What signal are we looking for exactly?
  • z = 7 was 12.9 billion years ago…And that’s right near the FM band
  • For such an experiment, we need to find a much more remote site…
  • What are we building?
  • A whole array? What does that do? (optional interferometry section is next)
  • To answer this, I spent my summer “vacation”…
  • Hidden system slide next, then array pic (64!)
  • What can we do with this?
  • With 64…
  • Make maps and catalogues, find new SNRs, further characterize the instrument, etc…Note on what I do
  • Next step…
  • 128! And later, HERAEmphasize student involvement
  • WV Governor’s School Lecture

    1. 1. A True Story of Astronomy in the Desert<br />Nicole Gugliucci<br />for the PAPER Team<br />PAPER is a UVa/Berkeley/NRAO/UPenn/SKA-SA Production<br />
    2. 2. Why do radio astronomers hide from people?<br />
    3. 3. Why do radio astronomers hide from people?<br />
    4. 4. Why do radio astronomers hide from people?<br />
    5. 5.
    6. 6.
    7. 7. The new [epoch of reionization] map may carry more information than even the cosmic microwave background radiation.<br />- Avi Loeb, Scientific American, Nov. 06<br />We are looking to see the signal of the neutral hydrogen during reionization.<br />3 September 2008 <br />N. Gugliucci – CAS <br />7<br />
    8. 8. http://people.su.se/~gmell/lib/exe/fetch.php?cache=cache&media=xy_100mpc_406.gif<br />GarreltMellema<br />8<br />
    9. 9. Z=9 or<br />556 million yrs<br />after BB<br />Z=8 or<br />652 million yrs<br />after BB<br />Z=7 or<br />778 million yrs<br />after BB<br />Z=6 or<br />950 million yrs<br />after BB<br />by Trac & Cen (2007)<br />
    10. 10. Signal vs. Foregrounds at 140 MHz<br />MW synchrotron<br />(Power)<br />Point Sources<br />MW free-free<br />E-gal free-free<br />EoR<br />CMB<br />(Multipole Moment)<br />
    11. 11. Signal vs. Foregrounds at 140 MHz<br />MW synchrotron<br />(Power)<br />Point Sources<br />MW free-free<br />E-gal free-free<br />EoR<br />CMB<br />(Multipole Moment)<br />
    12. 12. Seeing in the Dark<br />The 21 cm or 1.4 GHz transition marks a protected band for radio astronomy, due to the importance of hydrogen as an astronomical tracer. However, the hydrogen at the EoR is redshifted to a lower frequency.<br />Machele Cable of Wake Forest<br />Ned Wright's Cosmology Tutorial<br />Reionization occurs z ~ 6 - 14, redshifted to 100 – 230 MHz<br />
    13. 13.
    14. 14.
    15. 15.
    16. 16. Array, or, Interferometer<br />Actual imaging of the neutral hydrogen will take many more times the sensitivity of current telescopes<br />Instead, measure power spectrum. This is natural for an interferometer, which detects spatial frequencies<br />Christian Deichert<br />www.daviddarling.info<br />
    17. 17. 17<br />More on Interferometry<br />1-D Fourier Transforms<br />www.bruker-biospin.com<br />
    18. 18. 18<br />More on Interferometry<br />1-D Fourier Transforms<br />www.bruker-biospin.com<br />2-element response<br />Prof. Dale E. Gary - NJIT<br />
    19. 19. 19<br />More on Interferometry<br />1-D Fourier Transforms<br />www.bruker-biospin.com<br />+<br />+<br />+…<br />Prof. Dale E. Gary - NJIT<br />
    20. 20. 20<br />More on Interferometry<br />1-D Fourier Transforms<br />www.bruker-biospin.com<br />+<br />+<br />+…<br />Prof. Dale E. Gary - NJIT<br />
    21. 21. 21<br />More on Interferometry<br />1-D Fourier Transforms<br />www.bruker-biospin.com<br />+<br />+<br />+…<br />Prof. Dale E. Gary - NJIT<br />
    22. 22. What was the early universe like?<br />
    23. 23.
    24. 24. PAPER System<br />
    25. 25.
    26. 26. With 32 antennas…<br />
    27. 27.
    28. 28. The Ionosphere<br />http://madrigal.haystack.mit.edu/models/IRI/index.html<br />http://radiojove.gsfc.nasa.gov<br />
    29. 29.
    30. 30. Astronomy in the desert…<br />Far away from humans for next generation radio telescopes<br />PAPER is poised to make the first detection of the Epoch of Reionization signal, giving us a clue to the first stars and galaxies<br />Upcoming projects need bright young scientists and engineers to continue these explorations<br />
    31. 31. Thank you!<br />

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