cta status and plans juan abel barrio 4 th multidark workshop, contacts with industry ift, madrid....

CTA Status and Plans

Juan Abel Barrio

4th MultiDark Workshop, Contacts with Industry

IFT, Madrid. April 2011

Juan Abel Barrio, GAE-UCM 2 4th MultiDark Workshop, IFT Madrid, April 2011

CTA: Cherenkov Telescope Array

One observatory with two (asymmetric) sites for all-sky coverage operated by one consortium

4th MultiDark Workshop, IFT Madrid, April 2011Juan Abel Barrio, GAE-UCM

Scientific Motivation

Project status

Plans for construction & operation

CTA-Spain contribution

Proposal: CTA-North at Spain


Cosmic electromagnetic spectrum

1 eV 1012 eV = 1 TeV


First VHE -ray sourceThe Crab Nebula1989, Whipple

The VHE gamma-ray sky has open-up …

Over 350 publications in prestigious journals12 publications in Science and Nature


Project status


Unifying European EffortsWorldwide


CTA Timeline

Design

Design Study 2007-2010

Preparatory Phase 2010-2013

Array Construction 2014-2018

Design Concepts for CTA (arXiv:1008.3703v1)

“Production-Ready”Technical Design Report


CTA Layout

Low-energy section:4 x 23 m tel. (LST)- Parabolic reflector- FOV: 4-5 degrees- f/D: ~1.2energy thresholdof some 10 GeV

Core-energy array:23 x 12 m tel. (MST) Davies-Cotton reflector- FOV: 7-8 degrees- f/D: ~1.4mCrab sensitivityin the 100 GeV–10 TeVdomain

High-energy section:32 x 5-6 m tel. (SST)Davies-Cotton reflector(or Schwarzschild-Couder)- FOV: ~10 degrees- f/D: 1.2 – 1.510 km2 area at multi-TeV energies

(one) possible configuration100 M€ (2006 costs)


Cherenkov telescopes

EAS

~10 km~ 1o

Che

renk

ov li

ght

~ 120 m

Effective area ~104 m2

Background rejection

Operation principleOperation principle


Cherenkov telescopes

EAS

~10 km~ 1o

Che

renk

ov li

ght


Background rejection ++

Enhanced reconstruction

Operation principleOperation principle


Background rejection


CTA in numbers

• CTA Consortium: above 550 researchers from over 120 groups from about 80 Institutions from 22 countries (16 European) (Until May 2010) + USA, India, Brazil, Slovenia, Marseille -> over 700 people

• CTA Observatory sites: One in the South O(100 MEuros) -> Argentina, Namibia, South-Africa Another in the North O(50 MEuros) -> Spain, Mexico,…

• CTA Telescopes: O(100) altogether South Observatory: O(5) LST, O(30) MST, O(30) SST in ~3x3 Km2

North Observatory: O(5) LST, O(30) MST in ~1x1 Km2

• CTA dates: CDR: May 2010 / TDR: End 2013 Construction start: 2013-2014 / end: 2018-19


Plans for construction and operation


Medium &small-sized telescopes

MST SST


Large-sized telescopes

LST


Camera elements


Mirrors

Diamond-milled Aluminumsandwich(MAGIC-I)

Foam glass replica

Composites (carbon-fibre epoxy)

Cold-slumped glass replica (MAGIC II)

Glass mirrors(H.E.S.S.)

•Sizeable part of costs•Challenges 10000 m2

Produce them in time !

Replica techniques to be proven:


Active Mirror Control


Operation and control


CTA Spain structure and contribution


CTA-Spain Consortium in numbers

•8 groups (so far) from different fields: Madrid, Barcelona, IAC

•Personnel: 70 researchers and 50 EDPs (about 10% of the whole CTA, 12,5% EDPs).

•5 Ramón y Cajal Fellows

•Cooperation with enterprises: GTD, INSA, etc. •Funding so far (up 2013): 3.2 M€

•8 groups (so far) from different fields: Madrid, Barcelona, IAC

•Personnel: 70 researchers and 50 EDPs (about 10% of the whole CTA, 12,5% EDPs).

•5 Ramón y Cajal Fellows

•Cooperation with enterprises: GTD, INSA, etc. •Funding so far (up 2013): 3.2 M€


CTA-Spain Contributions

•Large Size Telescope Low energy threshold physics (very demanding)

Advanced front-end and analog-to-digital electronics

Advanced trigger development

Advanced photosensors

Telescope structure

•Atmospheric characterization Reduce systematic uncertainties New atmospheric monitoring instrumentation

New calibration instrumentation

•SITE characterization

•Data Model and Reduction


Camera design and prototyping

Electronics

Readout

PreAmp(UB)

Digitizing(French & italian groups)

Trigger

L0 (IFAE) L1 - Decision (UCM-GAE)

L1- Distrib. (CIEMAT)

Cluster

Camera

Photosensors(CIEMAT)

(UB)(UCM-GAE)(UCM-ELEC)

(IFAE)

Mechanics(CIEMAT)

Timing(UCM-ELEC)

Mechanics(IFAE, CIEMAT,

UCM-ELEC)

Quality control(UCM-ELEC)

Slow control(IFAE)

New camera concepts(IFAE, CIEMAT, UB,

UCM-GAE, UCM-ELEC)


Proposal for CTA-North at Spain


CTA-North at Spain

•CTA-North features Scientific aim: extragalactic physics, pulsars and dark matter

Low threshold: ~5 LST, ~30 MST area ~1x1 km2

Lower cost (~80 M€) than CTA-South Probable proposed sites: Arizona (US), Sierra Negra (México), India ?

•CTA-North at Spain Positive experience with HEGRA and MAGIC Great benefits for Spanish scientific community and industry

Proposed site: Izaña Observatory (IAC), Tenerife


CTA-North at Spain


Conclusions

• Improve sensitivity (factor ~10) and energy coverage (20 GeV-100 TeV)

• Merge efforts by different experimental groups (HESS, MAGIC, VERITAS) and the astrophysics community. Currently ~1000 people.

• World wide effort: CTA = Cherenkov Telescope Array.

• Entering now in the Preparatory Phase within FP7 Prototyping

• Challenging instruments Opportunities for industry

• Proposal for CTA-North in Spain Opportunities for Spanish industry


Conclusions

(Not to scale)


Backup


TeV Astronomy: Highlights

Over 350 publications in prestigious journals:

● Microquasars: Science 309, 746 (2005), Science 312, 1771 (2006)

● Pulsars: Science 322, 1221 (2008)

● Supernova remnants: Nature 432, 75 (2004)

● The Galactic Centre: Nature 439, 695 (2006)

● Galactic Survey: Science 307, 1839 (2005)

● Starbursts: Nature 462, 770 (2009), Science 326,1080 (2009)

● AGN: Science 314,1424 (2006), Science 325, 444 (2009)

● EBL: Nature 440, 1018 (2006), Science 320, 752 (2008)

● Dark Matter: Phys Rev Letters 96, 221102 (2006)

● Lorentz Invariance: Phys Rev Letters 101, 170402 (2008)

● Cosmic Ray Electrons: Phys Rev Letters (2009)


10-14

10-13

10-12

10-11

10 100 1000 104

105

Crab

10% Crab

1% Crab

Fermi

MAGIC-I

H.E.S.S.

E. F

( >E

) [ T

eV/ c

m2 s

]

E (GeV)

High-z AGNs,pulsars, Dark Matter

Population studies, extended sources,precision measurements

Exploring the cutoff regime of cosmic accelerators

CTA wish list

CTA


• CTA listed as priority in international roadmaps of:

ASTRONET (European Astrophysics Coordination)

ASPERA (European Astroparticles Coordination)

ApPEC Targeted DS Common Call -> Up to €2.7M

ESFRI (European Strategic Forum for Research Infrastructures)

EU FP7 Preparatory Phase approved -> Up to €5.2M

Astroparticle WG of GSF (OECD) CTA worldwide project

USA PASAG and Decadal Review

• At the Spanish level:

Project included in the MICINN roadmap as “High Priority”

RIA (Red de Infraestructuras de Astronomia) CTA group

CTA reviewed at many levels

3333

The Preparatory Phase

●Preparing for CTA Organisation (Governance, Finance, Legal…) Construction (Finalise Design/Implementation

plans, Site selection/development) Operation (Observatory, Data, …)

●Technical work Science-based optimisation of the

observatory, detailed design work, down-selection of the many hardware options

Monte-Carlo simulations, data analysis development, physics/astrophysics studies, mechanical and electronic engineering


CTA Data flow

storagePre-reduct.

Lev0 --> Lev1a-->Lev1b

ReductionCalibration

Lev1b --> Lev2a

MC

cuts Phot. List(Lev 2b)

Calib. Files

Da

taR

etr

ieva

lIn

terf

ace

Hig

h L

ev e

lD

ata

In

terf

ace

MW

L-I

A

ObservatoryObservatory

Sci

en.

Pro

duct

s(s

kym

ap, s

pec.

, LC

)

12

3

“Vertical” WPs

Large-sizetelescopesystem

int.LS

T focal plane instrum

entation

LST

structure and mirror

Medium

-sizetelescope

system int.

MS

T focal plane instrum

entation

MS

T structure and m

irror

Sm

all-sizetelescopesystem

int.S

ST

focal plane instrumentation

SS

T structure and m

irror“Horizontal”

WPs

Instrument simulation

Telescope structuresand drive systems

Mirror facets, mirroralignment

Instrument controland data acquisition

…

Technical project coordination

Supported by CTA-PP

The Spanish Coordinated Project for CTAThe Spanish Coordinated Project for CTAThe Spanish Coordinated Project for CTAThe Spanish Coordinated Project for CTA

Areas of interest:

• Physics ( ALL ) • Atmosphere and calibration ( IFAE, UAB )

• Trigger and electronics ( ICC-UB, IFAE, UCM-GAE, UCM-ELEC ) *

• Monte Carlo (design) ( IFAE, CIEMAT ) *

• Mechanics (CIEMAT, IFAE) *

- Data ( ICE-IEEC, UCM-GAE, ICC-UB )

• Quality Control ( UCM-ELEC )

• Site & Outreach ( IAC, IFAE, UCM-GAE)

-


Posibles sitios en España

3 Obs. Izaña, Tenerife: • Ventajas: sitio astronómico consolidado, infraestructura

astronómica ya existente, bien caracterizado, cercanía a sede del IAC en La Laguna.

• Desventajas: ?? Falta una cierta caracterización de los sitios concretos 1 & 2.


Sitio 1

Sitio 2

O. Izaña

1 km

Sitio 1 probablemente limitado por orografía a <1 km2.

cta status and plans juan abel barrio 4 th multidark workshop, contacts with industry ift, madrid....

Documents

ift madrid

th multidark workshop

plans juan abel barrio

gaeucm plans

gaeucm project status

spain slide

tev slide

cta status