BigBOSS Collaboration Meeting

8 oct. 2012, 08:00 → 10 oct. 2012, 18:00 Europe/Paris

Institut Henri Poincaré

lun. 8 octobre

08:45 → 09:30 Registration - Coffee

09:30 → 11:00 Plenary Session: (Ch. Yeche)

09:30 Welcome

Orateurs: Christophe Yeche (CEA Irfu/SPP), Ursula Bassler (CEA-Saclay Irfu/SPP)

Slides Welcome.pdf

09:40 BigBOSS overview

Orateur: David Schlegel

10:05 BigBOSS progress and plans

Orateur: Michael Levi

10:30 Spectrograph expertise in France

Orateur: Jean-Gabriel Cuby

11:00 → 11:30 Coffee break

11:30 → 12:30 Plenary Session: (M. Levi)

11:30 BAO with galaxy

Orateur: Will Percival

12:00 BAO with Ly-alpha

Orateur: Dr Nicolas Busca (APC - Université de Paris 7)

14:00 → 15:45 Instrument: Spectrograph (C. Bebek)

14:00 Spectrograph design

Orateur: Pat Jelinsky (UC Berkeley Space Sciences Lab)

14:35 Spectral Extraction Pipeline Needs

Orateur: Stephen Bailey

14:55 Mayall Spectrograph Environment

Orateur: Robert Besuner (UC Berkeley/Space Sciences Lab)

15:10 Through-the-Telescope Calibration

Orateur: Michael Schubnell

15:25 Saclay Cryostat Development

Orateur: Pierre-Henri Carton

14:00 → 15:45 Theory (B. Cahn)

14:00 Bonus cosmological applications of BigBOSS

Orateur: Pengjie Zhang (Shanghai)

Slides Some_bonus_cosmological_applications_of_BigBOSS.pptx

14:25 Topology and expansion history of the Universe: prospects for BigBOSS

Orateur: Graziano Rossi

14:50 Reconstruction for BAO in Galaxy and Lyman Alpha Forest

Orateur: Mariana Vargas (Carnegie Mellon)

15:15 fnl constraints from SDSS3 data

Orateur: Shirley Ho (Carnegie-Mellon)

15:45 → 16:15 Coffee break

16:15 → 18:00 Data reduction - Data Management (A. Bolton)

16:15 BigBOSS data management systems & practices

Orateur: Ben Weaver

16:30 Extraction & galaxy-redshift reduction-software challenges

Orateur: Prof. Adam Bolton (The University of Utah)

16:45 Lyman-alpha science reduction-software requirements

Orateur: Dr Nicolas Busca (APC - Université de Paris 7)

17:00 Stellar spectral analysis reduction-software requirements

Orateur: Carlos Allende-Prieto

17:15 2D spectral data simulations

Orateur: Stephen Bailey

17:30 Work planning session (moderated discussion)

Orateurs: Prof. Adam Bolton (The University of Utah), Stephen Bailey

16:15 → 18:00 Instrument: Spectrograph (C. Bebek)

16:15 French organization to deliver spectrograph

Orateur: Jean-Gabriel Cuby

16:50 Feedback on spectrograph concept

Orateur: Sebastian Vives

17:20 MUSE development

Orateur: Alban Remillieux

17:40 PFS development philosophy

Orateur: David Le Mignant

18:00 → 19:00 Welcome cocktail

mar. 9 octobre

09:00 → 10:30 Plenary Session: (D. Schlegel)

09:00 Theoretical challenges for precision cosmology

Orateur: Carlos Frenk

09:30 Dark Energy with SN

Orateur: Pierre Astier

10:00 Quasar Science

Orateur: Patrick Petitjean

10:30 → 11:00 Coffee break

11:00 → 12:30 Plenary Session: (C. Bebek)

11:00 BigBOSS instrument: Spectrograph

Orateur: Patrick Jelinsky

11:30 BigBOSS Instrument: Corrector-Telescope

Orateur: Peter Doel

12:00 BigBOSS Instrument: Positioner-Fibers

Orateur: Chao Zhai

14:00 → 15:45 Instrument: Telescope (M. Sholl and P. Doel)

14:00 Optical Design, 0402 corrector, changes, overall schedule

Orateur: Mike Sholl

14:30 Lens manufacturing, Lens cell design, Alignment strategy

Orateur: Peter Doel

14:55 Corrector barrel mechanical design and deflection predictions

Orateur: Paul Perry

15:20 Corrector barrel DES lessons learned, and implications for BigBOSS design

Orateur: Gaston Gutierrez

14:00 → 15:45 Target Selection: Imagery (J.-P. Kneib)

14:00 Force photometry

Orateur: Dustin Lang

14:20 Lessons from BOSS

Orateur: Ashley ROSS

14:50 PTF, ZPTF

Orateur: Peter Nugent

15:20 Image quality studies, status of DES

Orateur: Arjun Dey

15:45 → 16:15 Coffee break

16:15 → 18:00 Instrument: Fibers (J. Edelstein)

16:15 Fiber System Communication

Orateur: Jeremy Allington-Smith

16:35 Fiber Front End & Cable Activity

Orateur: Graham Murray

16:50 Fiber Cable Routing Design

Orateur: Dr Jerry Edelstein (University of California Berkeley)

17:00 Fusion Splicing Results

Orateur: Dr Jerry Edelstein (University of California Berkeley)

17:10 Fiber performance Models

Orateur: Jeremy Allington-Smith

17:25 Fiber performance Measures

Orateur: Dr Jerry Edelstein (University of California Berkeley)

17:45 Activity Plan

Orateur: Dr Jerry Edelstein (University of California Berkeley)

16:15 → 18:00 Target Selection: Algorithms (N. Palanque-Delabrouille)

16:15 PS1

Orateur: Eddie Schlafly

16:35 PTF for variability studies

Orateur: Eric Armengaud (CEA)

16:55 ELG simulation; Tests with PTF data

Orateur: Nick Mostek (LBNL)

17:15 ELGs in COSMOS data

Orateur: Johan Comparat (LAM)

17:40 LRG target selection with WISE

Orateur: Jeff Newman

20:00 → 23:00 Dinner Cruise

mer. 10 octobre

09:00 → 10:30 Ancillary Science (P. Noterdaeme)

09:00 Detecting Lya emission from IGM through cross-correlation with Lya absorption

Orateur: Jordi Miralda-Escudé (ICREA)

09:20 BigBOSS and the Milky Way

Gaia will provide by the end of this decade astrometry and photometry for a billion stars in the Milky Way down to V~20, and radial velocities for 150 million stars down to V<17, leaving a glaring hole in an otherwise unbiased catalog of the stellar populations of the Galaxy. BigBOSS is the only project/instrument capable of filling in the Gaia gap, providing radial velocities and chemistry for tens of millions of faint Milky Way stars. Those stars have the key to characterize the potential well of the dark halo of the Milky Way, understand the formation, accretion history, and early evolution of the Galaxy, and finding the oldest stars with the most primitive compositions. I will summarize results from SDSS and other ongoing surveys, describe the latest results from BOSS on halo stars, and glance at what BigBOSS could do for the Galaxy.

Orateur: Carlos Allende Prieto (Instituto de Astrofisica de Canarias)

09:40 BigBOSS calibration fields & Galaxy Evolution

Orateur: Arjun Dey (NOAO)

10:00 Application of SZ tomography in BigBOSS

Orateur: Jiawei Shao (Shaghai Astronomical Observatory)

10:15 Mapping dark matter with cosmic magnification

Orateur: Xinjuan Yang

09:00 → 10:30 Instrument: Positioner (F. Prada and C. Zhai)

09:00 LBNL & COBRA Fiber Positioners

Orateur: Besuner

09:25 IAA/AVS Fiber Positioner Progress

Orateur: Sanchez

09:50 Positioner Interfaces

Orateur: LBNL

10:10 Positioner Communication

Orateur: GLEZ. de Rivera

10:30 → 11:00 Coffee break

11:00 → 12:30 Dark Energy Science (N. Busca and J. Guy)

11:00 Cosmological constraints from simulations of redshift space distortions

Orateur: Carlton Baugh (Durham)

11:20 Determination of the abundance of cosmic matter via the cell count moments of the galaxy distribution

Orateur: Julien Bel (CPT Marseille)

11:40 Primordial non-Gaussianity with BigBOSS

Orateur: Dragan Huterer (Michighan)

12:00 Measuring sigma8 using the correlators of the galaxy density field

Orateur: Crhistian Marinoni (CPT Marseille)

11:00 → 12:30 Instrument: Focal Plane (B. Besuner)

11:00 Positioner Communications (LAMOST)

Orateur: Chao Zhai (USTC)

11:10 Focal Plate/Focal Plate Demonstrator

Orateur: Santiago Becerril (IAA)

11:30 Guide/Wave Front Sensors

Orateur: Robert Besuner (UC Berkeley/Space Sciences Lab)

11:40 Focal Plate Layout

Orateur: Paul Perry (LBNL)

12:00 Focal Plane Fiber Management

Orateur: Robert Besuner (UC Berkeley/Space Sciences Lab)

12:20 Planning & Schedule

Orateur: Michael Sholl (SSL/UC Berkeley)

14:00 → 16:30 Plenary Session: (J.-P. Kneib)

14:00 4m Multi Object Spectroscopic Telescope: the future of VISTA

Orateur: Piercarlo Bonifacio

14:30 Target Selection in BigBOSS

Orateur: Nick Mostek

15:00 Survey strategy in BigBOSS

Orateur: Jeremy Tinker

15:30 Data reduction and Data management in BigBOSS

Orateur: Adam Bolton

16:00 Conclusions

Orateurs: David Schlegel, Michael Levi

16:30 → 17:00 Coffee break