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X-Ray Vision

X-Ray Vision. Why is it important to progress to bigger and better telescopes?. ROSAT All Sky Survey. Chandra. Hubble. Look at this level of detail!. Look for objects that have x-ray sources near the center!. Criteria #1. Terzan 12. IC 1276. NGC 6171. NGC 4833. NGC 6541. NGC 6717.

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X-Ray Vision

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  1. X-Ray Vision

  2. Why is it important to progress to bigger and better telescopes? ROSAT All Sky Survey Chandra Hubble Look at this level of detail!

  3. Look for objects that have x-ray sources near the center! Criteria #1

  4. Terzan 12

  5. IC 1276

  6. NGC 6171

  7. NGC 4833

  8. NGC 6541

  9. NGC 6717

  10. Lynga 7

  11. Terzan 3

  12. NCG 6362

  13. NGC 6749

  14. TON 2

  15. NGC 6273

  16. NGC 6723

  17. NGC 6287

  18. Looking at X-ray sources • Objects sometimes have more than 1 x-ray source. • Now look to see which sources are closest to the centers of the globular clusters.

  19. NGC 6541 2 1

  20. NGC 6717 1 2

  21. Lynga 7 3 6 2 1 4 5

  22. NGC 6749 1

  23. TON 2 5 1 2 4 6 3

  24. NGC 6273 5 4 2 1 3

  25. NGC 6723 6 7 2 5 1 3 4

  26. NGC 6287 6 3 5 4 2 1

  27. To: david_morris@nasaxray.comFrom: mj.tykoski@wylieisd.netRe: X-ray source information Dear Dr. Morris, Here are the 10 x-ray sources that we would like more information on: NGC 6541 Source 1 NGC 6717 Sources 1-2 Lynga 7 Sources 1-4 NGC 6749 Source 1 Ton 2 Source 1 NGC 6723 Source 1 We need the additional information ASAP because we only have 20 minutes of class left. Thank you! Mrs. Tykoski’s 7th Period Class

  28. To: mj.tykoski@wylieisd.net From: david_morris@nasaxray.comRe: X-ray source information Hi there! The next thing you want to look for is the number of photons (energy packets) in the 3 groups. X-ray astronomers divide these photons into 3 groups: high energy photons, medium energy photons, and low energy photons. The best x-ray sources will have similar numbers of photons in all 3 of these bands. I’m attaching this information for 9 of the 10 sources you requested. We had a telescope malfunction when looking at NGC 6723. You need to narrow down your list to 3 X-ray sources for me to send on to Chandra. I will need your recommendation by today. Cheers, Dr. David Morris

  29. Criteria #2 • Look for sources that have similar numbers in the low, medium, and high energy bands in the X-ray

  30. NGC 6541 Source 1

  31. NGC 6541 Source 2

  32. NGC 6717 Source 1

  33. Lygna 7 Source 1

  34. Lygna 7 Source 2

  35. Lygna 7 Source 3

  36. Lygna 7 Source 4

  37. Lygna 7 Source 5

  38. Lygna 7 Source 6

  39. NGC 6749 Source 1

  40. NGC 6717 Source 2

  41. TON 2 Source 1

  42. TON 2 Source 2

  43. TON 2 Source 3

  44. TON 2 Source 4

  45. TON 2 Source 5

  46. TON 2 Source 6

  47. NGC 6273 Source 1

  48. NGC 6273 Source 2

  49. NGC 6273 Source 3

  50. NGC 6273 Source 4

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