Welcome to the First CLASH Science Team Meeting

September 20 – 21, 2010Granada, Spain

CLASH Fun Facts

• 524 HST orbits = 1.22 Megaseconds of exp time, ~4500 exposures (incl. PAR), ~300 GB raw data

• We are 32 researchers from 9 countries and 17 institutions, spanning 13 time zones.

• Total ground-based telescope time awarded in 2010 based on CLASH: ~370 hours (~1.3 Msec)

• Sum of all exposure times for archival x-ray, IR, SZE, Subaru data being used: 4.2 Megaseconds

• E-mails exchanged since June 2009: >3,800• Grams of dark matter to survey: 2.5 x 1046

CLASH Yields a Significant Expansion of SL Cluster Data

Strongly lensing Clusters with 3 or more filters from HST (ACS and/or WFC3)

Figure credit: Dan Coe

CLASH doubles the number of SL clusters with >3 HST passbands.CLASH has uniform and well-defined sample selection criteria.

No SL clusters currently have more than 9 HST passbands – new territory for science.

Lens Parameter Space

Num

ber

of

Lense

d O

bje

cts

wit

h z

Clust

er M

ass

CLASH Survey

Schematic representation of existing Observations

DM profile DM Concentration Einstein Radii DM Substructure

As functions of:

Total Mass Redshift ICM properties SF History (from spectra)

Number of Multiply Lensed Objects

Current Schedule

AAS Seattle

Workshop on Direct Detection of DM, France

SNe & Host Gal, Australia

Paths to SNe Ia Explosions, Italy

New Horizons for High-z, UK

MACS1206

KITP Galaxy Cluster Seminars, UCSB

STScI May Symp: Dark Matter

First MCT P.I. Progress Report

First z>1 SNe detection?

First hi-z lensed galaxy detection?

The CLASH SymphonyF225WF275WF336WF350LPF390W

F435WF475WF606WF625WF775WF814WF850LP

F105WF110WF125WF140WF160W

0 10 20 30 40 50 60 70 80 90 100 110 days

Abell 383: Solid dots: Cluster core, Open dots: Parallel fields; Black = orient A, Blue = orient B

WFC

3/IR

ACS/

WFC

WFC

3/U

VIS

May 2009 Jan 2011 Sep 2012 May 2014 Jan 2016 Sep 2017 May 2019

Cycle 18 Cycle 19 Cycle 20

Curves assume 41.4 month mean lifetime of single string instrument (based on actual HST SI experience). Predicts 50% failure probability for double string occurs at 69 months.

ACS is single string, WFC3 is double.

R. Doxsey (2009)

Objectives for this meeting

• Energize team … our program begins to execute in 58 days!• Get acquainted: teams that know one another work together better!• Concurrence on high priority science for first year.• Identification of the first CLASH science papers and their lead authors.• Identify outstanding CLASH data mgmt issues and develop solutions

before the November data deluge.• Planning for ground-based observing campaigns.• Planning for upcoming telescope proposals.• Concurrence on collaboration policies (authorship, new collaborators,

etc.)• Strategize about upcoming 2011 scientific symposia – want strong

CLASH coverage at all relevant major meetings.• Enjoy Granada!