W H AT T H E S K Y M A P P E R S O U T H E R N S K Y S U R V E Y - PowerPoint PPT Presentation

W H AT T H E S K Y M A P P E R S O U T H E R N S K Y S U R V E Y C A N D O F O R Y O U L O U I S E H O W E S A L O N G W I T H T H E S K Y M A P P E R T E A M S U R V E Y S F O R A L L , F E B 1 S T & 2 N D 2 0 1 6 , L U N D O B S E R VAT O RY

W H AT I S S K Y M A P P E R ?

W H AT I S S K Y M A P P E R ?

W H AT I S S K Y M A P P E R ? 1.35m primary mirror 5.7 square degree field-of-view Situated at Siding Spring Observatory, NSW

H I S T O RY O F S K Y M A P P E R • 2002 - First plans for an all-southern sky survey.

H I S T O RY O F S K Y M A P P E R • 2002 - First plans for an all-southern sky survey. • 2003 - Canberra bush fires:

H I S T O RY O F S K Y M A P P E R • 2002 - First plans for an all-southern sky survey. • 2003 - Canberra bush fires. • 2004 - Work starts on new survey telescope.

H I S T O RY O F S K Y M A P P E R • 2002 - First plans for an all-southern sky survey. • 2003 - Canberra bush fires. • 2004 - Work starts on new survey telescope. • 2007 - Telescope put together in Tuscon, AZ:

H I S T O RY O F S K Y M A P P E R • 2002 - First plans for an all-southern sky survey. • 2003 - Canberra bush fires. • 2004 - Work starts on new survey telescope. • 2007 - Telescope put together in Tuscon, AZ. • 2009 - SkyMapper completed, commissioning begins…

H I S T O RY O F S K Y M A P P E R

H I S T O RY O F S K Y M A P P E R And the problems started…

H I S T O RY O F S K Y M A P P E R • And the problems started… • CCD array develops saturation problems. • Two chips fail completely. • Trouble focussing the primary mirror. • Plumbing prevents the aircon from working in the dome. • Plague of ladybirds • Biggest problem: telescope vibrations. • Oh, and another fire…

H I S T O RY O F S K Y M A P P E R

W H Y S K Y M A P P E R ? • With the survey now in progress, what advantages does SkyMapper have over other telescopes?

U N I Q U E F I LT E R S E T

S T E L L A R P H O T O M E T RY K E L L E R E T A L . 2 0 0 7

S T E L L A R P H O T O M E T RY

E X T R A - G A L A C T I C

S H O RT S U R V E Y Table 1 Filter Saturation 5 𝞃 limit DR1 ABmag u 7.5 20 v 8.3 20 g 9.3 18.5 r 9.5 18.5 i 9.7 17.5 z 9.3 16.5

M A I N S U R V E Y Table 1 Filter Saturation 5 𝞃 limit DR1 ABmag u 8.5 21.5 v 10.0 21.5 g 12.5 22.2 r 12.7 22.0 i 12.2 21.0 z 11.0 20.2

A L L K I N D S O F S C I E N C E … The Stromlo Milky Way Satellite Survey • Predicted to find 20 dwarf satellites in the Southern hemisphere.

A L L K I N D S O F S C I E N C E … The SkyMapper Supernova Survey • Predicted to find 50-100 Type 1a Supernovae every year, in redshift range 0.03 < z < 0.2.

A L L K I N D S O F S C I E N C E … Searching for Trans-Neptunian Objects • Predicted to find around 2000 TNOs across the sky.

A L L K I N D S O F S C I E N C E … Searching for Trans-Neptunian Objects • Predicted to find around 2000 TNOs across the sky. … Planet 9?

SkyMapper www.findplanetnine.com

A N D M Y K I N D O F S C I E N C E … The EMBLA Survey: Extremely Metal-poor stars in the BuLge with AAOmega

T H E O L D E S T S TA R S I N T H E G A L A X Y ? • 60 fields in the bulge, observing > 5 million stars. • Followed-up 14,000 with intermediate resolution spectroscopy. • Confirmed about 500 stars with [Fe/H]<-2.0. • 50 stars observed in high-res with VLT, Magellan & Gaia-ESO.

T H E O L D E S T S TA R S I N T H E G A L A X Y ? • 10 stars with proper motions from OGLE. • 7/10 contained within the bulge. • No stars observed with high carbon abundances. • Two stars with 50% probability of forming at z > 15.

S K Y M A P P E R T I M E L I N E • Survey started 18 March 2014. • First short-survey release: Feb 2016 (Aus), Feb 2017 (World). • Full short-survey, partial main-survey release: Autumn 2016 (Aus), 2017 (World). • Estimated completion: early 2019.