Cosmic Evolution Survey COSMOS - PowerPoint PPT Presentation

Loading...

PPT – Cosmic Evolution Survey COSMOS PowerPoint presentation | free to download - id: 2903d-NDA2M



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Cosmic Evolution Survey COSMOS

Description:

VLT-VIMOS, XMM, Subaru, VLA, Galex, ... 2 million gal. ( z ... Subaru -- multiple color imaging. VeryLargeArray -- radio imaging. ESO-VLT & Magellan-- opt. ... – PowerPoint PPT presentation

Number of Views:98
Avg rating:3.0/5.0
Slides: 23
Provided by: nicksc
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Cosmic Evolution Survey COSMOS


1
Cosmic Evolution Survey (COSMOS)
HST ACS image 2 deg.2 ! 590 orbits in
Cy 12-13
VLT-VIMOS, XMM, Subaru, VLA, Galex,
2 million gal. (z 0.5) (like SDSS)
  • rational for survey
  • major multi-wavelength components

builds on GOODS , GEMS, UDF
2
  • Major features
  • large area -- 1.4 x 1.4 deg
  • cover largest large scale structures
  • high sensitivity ( I 27 mag, 10?)
  • morphology of L galaxies at z
  • sensitivity area
  • 2x106 galaxies , unusual objects at
    higher z
  • equatorial multi-? observations from all tel.

3
COSMOS -- 38 70 team members --
US, Japan, Europe and Canada
Telescopes Hubble -- very fine
sensitive optical images XMM -- xray
imaging Galex -- ultraviolet imaging
Spitzer -- Mid IR w/ IRAC Subaru --
multiple color imaging VeryLargeArray --
radio imaging ESO-VLT Magellan-- opt.
spec. 45,000 gal. NIR -- NOAO, UH88,
UKIRT
4
redshift slice from ? CDM sim.
Frenk etal
5
merging and interactions drive evolution
!! COSMOS survey large-scale structure context
obs. argument L (at z 0) 7 Mpc
7' (z1) , 4' (z3) 1 L for 1000
gal. 1 deg
How big an area
Coupled evolution of LSS, galaxies, star
formation, AGN w/ Z
6
Prob. of halo mass structures vs field size
cosmos
1 deg to sample all structures
7
COSMOS multi-?
8
ACS I-band
ACS
477 orbits 1/14/05
1.4 deg
NICMOS-3 1.6 ?m -- 24mag 7 of area
NICMOS-3 1.6 ?m -- 24mag 7 of area
9
Subaru 1.5x1.5 deg 0.7'' res.
Full subaru mosaic
2x106 gal.
18 bands for phot-z
10
Subaru -- deep multi-color opt. imaging
pi Y. Taniguchi
  • 10n in 04 , 15n in 05
  • full 2 deg2 covered to 25-27 mag in 18 bands

photo-z (Subaru BVRIZ, CFHT U, NOAO K)
dz/(1z) 0.04
current photo-z catalog at IAB 0.8
M galaxies
11
Redshift slices
stuctures from over-densities
12
COSMOS environment evolution
luminous early-type dense core of LSS
13
Z 0.73 cluster DM lensing X-ray
14
Z 0.73 cluster X-ray ACS
39 LSS w/I COSMOS, upt to 1014 M_sun
15
COSMOS major components HST (cycle 12
13) Galex deep VLA (A C array) Fall
04 Subaru imaging 04/05 (25 n) VLT
Magellan spectroscopy XMM Spitzer
all underway !
need for LSS context, large area and multi-? !
COSMOS will be a fundamental resource for
cosmology
16
  • Working groups
  • Star Formation and Galaxy SED Properties ---
  • Mobasher Giavalisco
  • includes Galaxy Evolution Large-Scale
    Structure
  • Evolution of SFR , luminosity
    fns,
  • 2. Evolution of morphologies -- Sheth
  • 3. Active Galactic Nuclei --- Impey
  • 4. Data Products, Catalogs, Images --- Shopbell
  • subgroups photo-z, phot catalogs,
    spectroscopy, access capabilities
  • future multi-lambda
  • 5. LSS and clustering -- Guzzo
  • Large scale structures/ clusters --
  • Evolution of clustering, correl. fn. --
  • Large-Scale Structure Cosmology --
  • 6. Lensing -- Kneib
  • 1. Star Formation and Galaxy SED Properties ---
  • Mobasher Giavalisco,
  • includes Galaxy Evolution
    Large-Scale Structure
  • Evolution of SFR ,
    luminosity fns
  • Evolution of morphologies Sheth
  • Active Galactic Nuclei --- Impey
  • Data Products, Catalogs, Images --- Shopbell,
  • subgroups photo-z, phot catalogs,
    spectroscopy,
  • access capabilities future multi-lambda
  • LSS and clustering Guzzo
  • includes Large scale structures/ clusters
    --
  • Evolution of clustering, correl. fn.
    --
  • Large-Scale Structure Cosmology
  • Lensing Kneib

17
'Science Steering Comm.' oversee/resolve
overlaps major PIs originators
Scoville, Renzini, Taniguchi, Lilly, Sanders,
Hasinger, Schinnerer, Elvis, Impey, Kneib,
Giavalisco, Mobasher
Comos web sites
http//cosmos.astro.caltech.edu/
http//irsa.ipac.caltech.edu/COSMOS/
18
Cosmos Data Policy Science Collaborations The
COSMOS project will archive data-sets (ACS and
multi-wavelength) which will be widely used in
the general astronomical community and by the
contributing teams. All reduced data and data
products within the COSMOS internal archive
should be available to all members of the
HST/COSMOS team. (The internal archive will
contain data products in advance of the public
release.) Multi-wavelength data teams will
deliver best-effort (not necessarily final)
processed data products within 6 months after
acquisition. When members of the COSMOS team
(including their students and post-docs) wish to
pursue a science investigation making use of the
COSMOS data-sets, they must advertise this
interest (with a title and an abstract of up to
100 words) on the team website. Other members of
the COSMOS team who feel they have contributed
to or would like to contribute work to the
advertised project may request to be included as
a collaborator. In the event that there are
overlapping investigations, the COSMOS PI (Nick
Scoville) will encourage collaboration of the
teams. Overlapping investigations will not be
forced to merge. Teams that provide products to
the COSMOS collaboration/archive should specify
how they would like to have their work
acknowledged (reference to specific papers,
organizational acknowledgments). It is our
intention that all contributors to COSMOS will
act in good faith to build a major scientific
collaboration. We will encourage external groups
to contribute their data, measurements and tools
to the public archive without useage
restrictions/limitations. We also recognize that
for science investigations derived largely from a
single data set, the the highest priority for
scientific leads should be those who have
participated in the observations and
post-processing --- under the assumption that
such investigations will be completed within a
year of acquisition or processing (if the latter
is extensive). However, during the same
proprietary period, multi-data set
investigations must be allowed to proceed by
members of the larger science team. A core
administrative group consisting of leaders of
each COSMOS sub-project will be responsible for
managing interfaces between the separate
sub-projects.
19
  • Aim to have a special COSMOS issue Apj Suppl.
  • Articles prepared by late august
  • Internally reviewed for conficts, inconsistency,
    etc
  • Submit to journal late Sept.
  • publication by next proposal deadline

20
(No Transcript)
21
(No Transcript)
22
(No Transcript)
About PowerShow.com