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Synergies between intensity mapping and optical galaxy surveys
 
The Geological Society
Burlington House
Piccadilly
LONDON
W1J 0BG
Start Time: 7 Apr 2017 - 10:00
End Time: 7 Apr 2017 - 15:00

A RAS Specialist Discussion Meeting organised by *Robert Crittenden (Portsmouth);
Alkistis Pourtsidou (Portsmouth); Clive Dickinson (Manchester)

Venue: The Geological Society Lecture Theatre, Burlington House

*Contact: robert.crittenden@port.ac.uk

Please note the meeting is a week earlier than usual due to Good Friday bank holiday, and has earlier start and finish times.

 

In the next few years, optical galaxy surveys like the DES, Euclid, and LSST, are promising to deliver cosmological measurements of unprecedented statistical precision. At the same time, the novel and very promising intensity mapping technique is going to be tested with instruments like BINGO and CHIME, as well as with the SKA and its pathfinders (MeerKAT). Combining the two methods (and CMB observations) can alleviate important problems like systematics and foreground contamination, and achieve powerful cosmological constraints. The meeting will discuss the possible synergies and describe how they can be used to investigate the causes of cosmic acceleration via dark energy and gravity tests.

 

09:30 Registration and coffee

 

10:00 Alkistis Pourtsidou (University of Portsmouth)
Near term intensity mapping and optical galaxy surveys: overview and prospects for
synergies

 

10:25 Reza Ansari (Universite Paris-Sud)
Exploring intensity mapping with Tianlai and PAON-4 pathfinder instruments

 

10:50 Stuart Harper (University of Manchester)
Intensity Mapping with Future Radio Surveys

 

11:15 Laura Wolz (University of Melbourne)
Testing galaxy evolution with intensity mapping cross-correlations

 

11:40 Discussion

 

12.00 Lunch

 

13:00 Will Percival (University of Portsmouth)

Current and Future Spectroscopic Galaxy Surveys

 

13:25 David Alonso (University of Oxford)
Synergies between intensity mapping and future photometric surveys

 

13:50 Tessa Baker (University of Oxford)
Sensible Strategies for Testing Gravity

 

14:15 Alex Hall (University of Edinburgh)
Redshift-space distortions from the 21cm cross-correlation dipole

 

14:40 Discussion