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General introduction: HSC collaboration meeting at Princeton. Yasushi Suto Department of Physics, The University of Tokyo (Global Scholar, Dept. of Astrophys. Sci., Princeton Univ.). HSC collaboration meeting @Princeton, Nov. 11 & 12, 2009. Proposed agenda: Wed., Nov. 11.

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general introduction hsc collaboration meeting at princeton
General introduction:HSC collaboration meeting at Princeton

Yasushi Suto

Department of Physics, The University of Tokyo

(Global Scholar, Dept. of Astrophys. Sci., Princeton Univ.)

HSC collaboration meeting @Princeton, Nov. 11 & 12, 2009

proposed agenda wed nov 11
Proposed agenda: Wed., Nov. 11
  • 14:00-14:30 Yasushi Suto:
    • HSC organization: advisory council , survey design committee, working group
    • Summary of discussion on Sept. 25 at University of Tokyo
    • Purpose of this meeting
  • 14:30-15:00 discussion
  • 15:00-16:00 current plan of 3 surveys
    • 10 min presentations by chairs of each survey + 10 min discussion
  • 16:00-16:30 coffee
  • 16:30-18:00 discussion led by Masahiro Takada on collaboration policy, etc.
proposed agenda thu nov 12
Proposed agenda: Thu., Nov.12
  • 9:00-12:00 parallel session on how to optimize the current survey plan
    • Wide survey (chair: Masahiro Takada)
    • Deep survey (chair: Tomoki Morokuma)
    • Ultra-deep survey (chair: Masami Ouchi)
  • 13:30-15:30 summary of the morning session and discussion
    • 13:30-14:10 Masahiro Takada: wide-survey
    • 14:10-14:50 Tomoki Morokuma: deep survey
    • 14:50-15:30 Masami Ouchi: ultra-deep survey
  • 15:30-16:00 coffee
  • 16:00-18:00 further discussion toward the proposal led by Michael Strauss
outline of this collaboration meeting
Outline of this collaboration meeting
  • Establish the HSC organization
    • advisory council , survey design committee, working group
  • How to proceed
    • Summary of discussion on Sept. 25 at The University of Tokyo
    • Survey designs
    • Collaboration policy
    • Data right
a possible hsc organization proposed on jan 19 2009 at naoj
A possible HSC organizationproposed on Jan. 19, 2009 at NAOJ

H.Karoji

S.Miyazaki

PI

N-PAC council

HSC Survey Design Committee

Advisers

M.Takada: weak lens

K.Shimasaku: high-z objects

M.Chiba: Galactic archeology

J.Gunn: galaxy evolution

M.Strauss: everything

scientific

D.Spergel, T.Yamada,

N.Yasuda, …

non-scientific

E.Turner, Y.Suto, …

……

Working group 1

Working group N

Working group 2

Working group 3

HSC collaborators

today s proposal for hsc not for sumire
Today’s proposal(for HSC, not for SUMIRE)

N-PAC council

H.Karoji

S.Miyazaki

PI

Advisory Council

HSC Survey Design Committee

H.Aihara, P.Ho, H.Murayama,

D.Spergel, Y.Suto, E.Turner

M.Chiba, J.Gunn, K.Shimasaku, M.Strauss, M.Takada, K.Umetsu

……

Working group 1

Working group N

Working group 2

Working group 3

HSC collaborators

how to proceed next jan 2009 version
How to proceed next ? (Jan. 2009 version)
  • Aug. 2010: deadline of the Subaru strategic program proposal
  • Jun. 2010: HSC proposal 1st draft completed and circulated among collaborators
  • Mar. 2010: Japan-Princeton-Taiwan HSC workshop @ Japan ?
  • Dec. 2009: draft of HSC survey circulated among collaborators
  • Nov. 2009: HSC workshop @ Princeton
  • Mar. 2009: 3rd HSC workshop (in Japanese) @ NAOJ or Univ. of Tokyo
how to proceed next
How to proceed next ?
  • Dec. 2013: 1st world-top result from HSC as part of SUMIRE project
  • XXX.2012: start HSC survey
  • Aug. 2011: deadline of the Subaru strategic program proposal
  • XXX. 2011: HSC proposal 1st draft completed and circulated among collaborators
  • XXX.2010: Japan-Princeton-Taiwan HSC workshop @ Japan ?
  • Nov. 2009: HSC workshop @ Princeton
summary of discussion on sept 25 at the university of tokyo
Summary of discussion on Sept. 25 at The University of Tokyo
  • According to the draft of HSC white paper, the number of requested nights of wide, deep and ultra-deep surveys is 600.
    • Somehow we have to reduce it by 50% (?)
    • It is non trivial at al.
  • Possibilities include
    • Cut each of these surveys by a factor of two.
    • Drop one (or even two !) of the survey plans, and adjust the number of nights among the rest of the plans
    • Something in-between the above two, by cutting each of the surveys by a factor depending on the strength of their scientific case. The factors may be adapted after a few years of the survey, depending on its achievements.
purpose of today s discussion
Purpose of today’s discussion
  • The latest number of requested nights for each survey (wide, deep, and ultra-deep)
    • Presentation by each survey group
  • Agreement on the decision making procedure
    • Discussion today and tomorrow
    • Final decision; who and how ?
  • other collaboration issues
summary of requested nights
Summary of requested nights
  • Wide
    • 1500 deg2 159 nights (w/o weather factor)
    • 1000 deg2106 nights
  • Deep
    • 79 nights (w/o weather factor)
  • Ultra-deep
    • 69 nights (w/o weather factor)
  • Max number of nights: 210 (w/o weather factor)
    • Ratio: (159+79+69)/210=307/210=1.46
    • On average, 210/307=0.68 reduction
comparison nov 11 vs nov 12
Comparison: Nov.11 vs. Nov.12
  • Wide
    • 1500 deg2 159 nights ⇒ 1000 deg2106 nights
  • Deep
    • 79 nights ⇒ 43 nights
  • Ultra-deep
    • 69 nights ⇒ 60 nights
  • Max number of nights: 210 (w/o weather factor)
    • Wide: deep: ultra-deep = 50: 20: 30