Impact on wide-field optical astr Impact on wide-field optical - - PowerPoint PPT Presentation

▶
impact on wide field optical astr impact on wide field
SMART_READER_LITE
LIVE PREVIEW

Impact on wide-field optical astr Impact on wide-field optical - - PowerPoint PPT Presentation

Mar 15, 2023 147 likes •331 views

Impact on wide-field optical astr Impact on wide-field optical astronom onomy Tony Tyson University of California, Davis Chief Scientist, Vera C. Rubin Observatory Space on the Hill March 11, 2020 Rubin Observatory will execute the Legacy

slide-1
SLIDE 1

Impact on wide-field optical astr Impact on wide-field optical astronom

  • nomy

Tony Tyson University of California, Davis Chief Scientist, Vera C. Rubin Observatory

Space on the Hill March 11, 2020

slide-2
SLIDE 2

Rubin Observatory will execute the Legacy Survey

  • f Space and Time, producing the deepest,

widest, view of our dynamic Universe:

slide-3
SLIDE 3
  • 27-ft (8.4-m) mirror
  • 3200 megapixel camera
  • Each image the size of 40 full moons
  • Scans the sky with 2000 images per

night

  • 10 year survey of the sky 2022-2032
  • 37 billion stars and galaxies
  • 10 million alerts, 20 Terabytes of data ..

every night!

  • Signific

Significantly im y impac pacted b by brigh bright sat satellit llite trails trails

Rubin Observatory will execute the Legacy Survey of Space and Time, producing the deepest, widest, view of

  • ur dynamic Universe:
slide-4
SLIDE 4

4

Every circle contains ten million galaxies. Will observe ~half of sky, ~1000 times over ten

  • years. 20 TB per day; 15 PB database at end
  • f survey.

~40 billion objects will be cataloged by survey end – More objects than humans on Earth.

Credit: Y. AlSayyad, A. Connolly, ESO/Y. Beletsky

slide-5
SLIDE 5

5

Every circle contains ten million galaxies. Will observe ~half of sky, ~1000 times over ten

  • years. 20 TB per day; 15 PB database at end
  • f survey.

~40 billion objects will be cataloged by survey end – More objects than humans on Earth. The enormity of the faint galaxy catalog will

  • pen a new window on our understanding of

Dark Energy.

Credit: Y. AlSayyad, A. Connolly, ESO/Y. Beletsky

Science Driver 1 – Dark Energy and Cosmology

slide-6
SLIDE 6

Credit: Y. AlSayyad, A. Connolly, ESO/Y. Beletsky

Repeated observations of the sky will open new windows into the changing Universe, including millions of alerts on changes each night.

Science Driver 2 – Transient Universe

slide-7
SLIDE 7

Credit: Y. AlSayyad, A. Connolly, ESO/Y. Beletsky

Repeated observations will also

  • pen new windows into the past

and future of our Solar System, including identifying Potentially Hazardous Asteroids.

Science Driver 3 – Solar System

slide-8
SLIDE 8

8

Automated discovery and data exploration

slide-9
SLIDE 9

2018

slide-10
SLIDE 10
slide-11
SLIDE 11

February 11, 2020

Rubin Observatory LSST survey 2022-2032

slide-12
SLIDE 12

Very small telescope with wide field of view. John Tonry U Hawaii

Two S tarlink satellites in a 30 sec exposure

2019-08-27

slide-13
SLIDE 13

13 Rubin Observatory 3200 Megapixel Camera

slide-14
SLIDE 14

14

Rubin Observatory 3200 Megapixel Camera

slide-15
SLIDE 15

15

Satellite trail near saturation in the Rubin Observatory camera induces image artifacts

slide-16
SLIDE 16
  • tt
  • SpaceX is working with the astronomical community to

reduce the light pollution effects on optical astronomy

  • Making the spacecraft 10‐20 times darker may remove

some satellite trail artifacts in the Rubin Observatory camera

  • We are working with SpaceX to measure the effect of

darkening test satellites in future launches

  • However, even if that works, evidence of satellite trails will

clearly be in the data – complicating data analysis, limiting discoveries

slide-17
SLIDE 17

17

Full end‐to‐end simulations Full end‐to‐end simulations