Participação em projectos de Astronomia da ESA, da NASA e com o ESO

1/24ProjectsGalaxies& CosmoProjectsCAUP Stars & Planets

Participação em projectos de Astronomia da ESA, da NASA e com o ESO

Lisboa, 30 Julho 2009

Mário João P. F. G. Monteirowith help from

Jorge Filipe Gameiro, Antónioda Silva, Nuno Santos, Pedro Viana


Centro de AstrofísicadaUniversidade do Porto (CAUP) is a private scientific institution of the Universidade do Porto (U.Porto), non-profit making, officially recognized as institution of public utility. Started activities in October 1990.

Its main objective is to support and promote Astronomy through•frontline research,•training at the post-graduate and undergraduate levels,•activities forprimary and highschools,•science outreach and popularization of scientific culture.

As the result of a partnership between the U.Porto, the City Council and the Ministry for Science and Technology, CAUP shares the building with the Planetarium of Porto (administered by FundaçãoCiênciaeDesenvolvimento), in one of the University Campuses.

Website at

Http://www.astro.up.pt/

Institution

CAUP


Origin and Evolution of Stars and PlanetsThe key objective of the team is to address important issues of thephysics that drives the formation and evolution of stars and planets. Both observational and modelling components are addressed.

Galaxies and Evolution of the UniverseThe main objective of the team is to further theunderstanding of the origin and evolutionof the Universe and its large-scale structures.

Astronomical instrumentationThe scientific participation in the technical development ofAstronomical Instrumentation, which transverses both majorscientific areas in CAUP, is also pursued. Its importance steamsfrom the need to secure privileged access to existing and futurefacilities of ESO and ESA and to contribute to the long term development of Astronomy in Portugal and Europe.

Science teams at CAUP

CAUP


The key objective is to address important issues of the physics that drives the formation and evolution of stars and planets. Both observational and modeling components are addressed.

This is done by focusing the activity in three major topics:•Star formation and early evolution• Planetary systems• Stellar populations and evolution of stars

This is in line with the Science Vision for European Astronomy(2007, ASTRONET) proposing, as one of four corner stones of Astronomy for the next decade, the answer to the question on

What is the origin and evolution of stars and planets?

including in particular the questions on:•How do stars form?• Do we understand stellar structure and evolution?• What is the life-cycle of the interstellar medium and stars?• How do planetary systems form and evolve?• What is the diversity of planetary systems in the galaxy?

Principal Investigator (2009-2011): Nuno C. Santos

Scientific objectives

Stars & Planets


Instrumentation (space and ground)

Planetary SystemsStellar Populations

and Evolution of Stars

Characterization of starshosting planets

Stars & PlanetsStars & Planets

PLATO* (ESA, 2017)

Kepler*(NASA, 2009)

CoRoT*(France & ESA, 2006)

Solar Orbiter (ESA, 2017)

GAIA* (ESA, 2011)

SOHO(ESA & NASA, 1995)

CODEX (E-ELT ESO, 2020)

ESPRESSO* (VLT ESO, 2014)

HARPS(3.6LS ESO, 2003)

Portuguese contribution towards finding what is the origin and evolution of stars and planets, is centered on addressing the questions:

• Do we understand stellar structure and evolution?• How do planetary systems form and evolve?• What is the diversity of planetary systems in the galaxy?

Stars & Planets


CoRoT (France & ESA, 2006)This is a space project for the study of stellar interiors using asteroseismologyand detection of planets around solar-type stars.

Due to its contribution to this mission, ESA nominated 5 researchers from its members states to represent ESA in the scientific structure of the mission (the selected investigators are from Portugal, Denmark, Switzerland and United Kingdom). CAUP participates in this mission from 2002 at the Co-Investigator level, following a successful application to an AO issued by ESA. This grants full access to all data in the asteroseismology core programme.

As established by the ESA/AO bid, CAUP coordinated an international team on the development, optimization and documentation of evolution and seismic tools for asteroseismology: CoRoT/ESTA.

http://sci.esa.int/corot/

Strategic projects - space missions (1)

Projects

Key results published in Science 2008Several planets published 2008 & 2009


KEPLER (NASA, 2009)This is a Discovery Program for detecting potentially life-supporting planets around other stars. Kepler is poised to find planets 30 to 600 times less Massive than Jupiter.

The Kepler Mission is specifically designed to survey our region of the Milky Way galaxy to discover Earth-size and smaller planets in or near the habitable zone and determine how many of the billions of stars in our galaxy have such planets.

Kepler looks at 100,000 stars so that if Earths are rare, a null or near null result would still be significant. If Earth-size planets are common then Kepler should detect hundreds of them.

http://kepler.nasa.gov/


Projects


KEPLER (NASA, 2009)Following the agreement between Denmark (Aarhus) and NASA, a KeplerAsteroseismic Science Consortium (KASC – with more than 200 researchers) has been created to take over the Asteroseismology component of this mission.

CAUPparticipates in the KASC Steering Committee(12 members representing NASA and the European institutes involved) and in the KASC working group structure with several Portuguese researchers being formal members of four Working Groups (1, 4, 5, 10) and in particular holding the following positions;

• Chair Working Group 5: roAp Stars• Chair SubGroup 1.6: Fitting models to observed frequencies

of Working Group 1: Solar-like p-mode oscillations

• Chair SubGroup 5.2: Stellar Modellingof Working Group 5: roAp stars

The quality of the Kepler data and the large number of stars observed are expected to lead to a huge step forward in understanding of stellar evolution. During the first nine months in space, Kepler will survey more than 5000 stars for oscillations. Based on those measurements around 1100 stars will be followed for detailed studies throughout the full mission.

http://astro.phys.au.dk/


Projects

First light: NGC6791


GAIA (ESA, 2011)Its goal is to make the largest, most precise three-dimensional map of our Galaxy by surveying an unprecedented number of stars.

CAUP is involved in the preparation of this mission, under the GAIA Data Processing and Analysis Consortium (DPAC), within a consortium of Portuguese teams: CFC (UC), SIM&LOLS&CAAUL (UL), UNINOVA, CAUP&CICGE (UP) plus two companies (Critical & Sun PT). CAUP participates in the preparation of the pipeline for determining stellar parameters.

Science Goals for Stars:The large sample of stars over different stellar type gathered byGaia, will greatly extend our understanding of stellar structureand evolution and will allow further improvement of theoreticalmodels of stellar interiors, for example in the areas of: the size ofthe convective cores, the internal diffusion of chemical elements,the outer convective zones

Science Goals for Exoplanets:The results derived from Gaia will help to improve our understanding of planetary orbital parameters and the distribution of exoplanets overtheir mass. They provide important data to constrain theoretical modelsof the formation, migration, and dynamical evolution of planetary systems.

http://sci.esa.int/gaia


Projects


PLATO (ESA 2017/2018)The objective of this mission is to detect and characterize exoplanets and measure the seismic oscillations of the parent stars orbited by these planets in order to understand the properties of the exoplanetary systems.

CAUP has been involved in the proposal for this new mission that has been submitted to the ESA Cosmic Vision 2015-2025 call in 2007. From over 50 proposals, PLATO has passed to the Phase A of assessment for possible launch date in 2017-2018. The next down-selection will be done by ESA in the end of 2009 - beginning of 2010.

There are tree payload concepts, compliant with the new science requirements for the primary stellar sample for both transit detection and astero-seismology.

http://www.oact.inaf.it/plato/PPLC/http://sci.esa.int/plato


Projects


ESPRESSO (ESO 2014)The EchelleSPectrograph for Rocky Exoplanet- and Stable Spectroscopic Observations (ESPRESSO) is a new-generation spectrograph for ESO's VLT.

ESO funds about 60% of the estimated costs, while the consortium of 4 countries covers about 40% of the cost. The consortium includes: Italy, Portugal, Spain, Switzerland (PI).

The amazing 'spectroscopic' precision of this instrument will provide the community with new scientific capabilities which are unique world- wide.

• Goal: 10 cm/s long term precision in radial-velocity• To be mounted on the ESO VLT (2014)• Currently in Phase A study (funded by ESO)

In particular, the ESPRESSO Consortium will invest the Guaranteed-Time Observation (GTO), awarded in return to the major investment, into two major scientific programmes:

• Search for rocky extra-solar planets in the habitable zoneof solar-type stars•Variability of physical constants: fine-structure constant and mp/me

http://espresso.astro.up.pt/

Strategic projects - ground based facilities (1)

Projects


ESPRESSO (ESO 2014)

The Portuguese instrument contribution:• Design and construction of Coudé train (opto-mechanics)

o Bring light from the 4 VLT-UT telescopes to the Combined Coudé Laboratory. o It will allow astronomers to use 4 UTs at the same time (16-m telescope equivalent).

• Scientific software development and analysis

Portuguese teams involved:• CAUP (UP) &LOLS + SIM (UL)•Nuno C. Santos (CAUP) is the Co-PI

Major impact on future space projects:• PLATO – need to have precise velocity

measurements to confirm thedetection and obtain the parametersof the system: planet + star

• Support future space missions aiming atstudying the atmosphere of the

exo-planets found near thehabitable zone

Strategic projects - ground based facilities (2)

Projects


AsteroFLAG (ISSI)This working group is an international collaboration of asteroseismologistsfunded as an ISSI programme for securing a major effort, to position the European groups in this field, to make optimal use of the expected large quantities of data from space missions like CoRoT and Kepler.

http://www.issibern.ch/teams/Astflag/

European Helio and Asteroseismology Network (HELAS)Helioseismology for the case of the Sun and asteroseismology for other stars, consists of the detailed analysis of the seismic waves observed at the stellar surfaces, which has become the prime technique probing the interior of stars during the past 30 years.

HELAS was created and funded by the European Commission to prepare European scientists for the new exciting projects and space missions, delivering overwhelming amounts of data on these waves resonating in the Sun and the stars.

Partners: 10 European institutes, including CAUP, with the participation of over 200 researchers.

http://www.helas-eu.org/

Strategic working groups and consortia

Projects


The key objective is to address important issues on Galaxies and Evolution of the Universe to further the understanding of the formation and evolution of large-scale structures in the Universe.

The activity is focused on two major topics of research:Physical Properties of GalaxiesPhysical properties of massive galaxiesGalaxy cluster astrophysics Observational Probes of Dark EnergyStructure formation paradigmsDynamical dark energy Varying fundamental constants

This strategy reflects the outcome of A Science Vision for European Astronomy, published in 2007 under the auspices of ASTRONET, where two of the four main questions that were identified as those that merit most attention for the future development of Astronomy are directly related with these subjects of research:

•Do we understand the extremes of the Universe?How did the Universe begin?

What is dark matter and dark energy?•How do galaxies form and evolve?

How did the structure of the cosmic web evolve?Where are most of the metals throughout cosmic time?How were galaxies assembled?

Principal Investigator (2009-2011): Carlos J. A. P. Martins

Scientific objectives

Galaxies & Cosmo


Instrumentation (space and ground)

Observational Probes of Dark Energy

Physical Properties of Galaxies and Clusters

Origin and Evolution of Large Scale Structures

Galaxies & CosmologyGalaxies & Cosmology

IXO (ESA, 2025)

XMM-Newton*(ESA, 1999)

HUBBLE(ESA & NASA, 1990)

EUCLID* (ESA, 2018)

ESPRESSO* (VLT ESO, 2014)

PLANCK*(ESA, 2009)

Galaxies & Cosmo

XMM-Newton Cluster Survey (XCS)

http://sci.esa.int/xmm/

The team is composed of nearly 30 researchers, including PhD students. Most are based in the UK, but there are members affiliated to institutions in the USA, Chile, South Africa and Portugal (CAUP).

The main objective of this project is to assemble the largest catalogue of clusters of galaxies ever assembled through the detection of their X-ray emission.

This will be achieved by searching for galaxy clusters in all images obtained by the ESA satellite XMM-Newton.

The catalogue will be mainly used to constrain the large-scale properties of the Universe and the evolution with time of the characteristics of clusters of galaxies, the largest structures in the Universe.

1 arc min512 kpc

More than 6000 XMM-Newton images have already been searched for clusters of galaxies, with about 800 more expected to be analyzed each year until the end of operations of XMM-Newton, no sooner than 2014.

Hundreds of thousands of sources have been identified, including a few thousand that are possibly clusters of galaxies. Among these, around 300 have already been confirmed by the optical identification of the associated galaxy over-density.

Including the most distant known galaxy cluster, seen when the Universe had less than one third of its present age (published in Nature 2009):

Planck Surveyor: looking back to the dawn of time

Project: ESA lead mission to observe the temperature and polarization anisotropies of the Cosmic Microwave Background (CMB) radiation with unprecedented precision.

Total Cost: about €700 million (€1 / person in EU)

Mission timeline: Launch: 14 May 2009Operational orbit at L2: July 2009Nominal science phase: end of August 2009Planned mission lifetime: 18 months (+1 year ext.)

Fundamental questions addressed in Cosmology and Astrophysics:

• what are the initial conditions for the evolution in the Universe’s structure? • what is the nature and dynamics of dark energy? • what is the nature and amount of dark matter?

http://sci.esa.int/planck/

Planck Surveyor: Portuguese participation and contributions

Scientists in Consortium Science and Data structures:- Core Team and Data Processing Centre: Graça Rocha (IPAC/Caltech, USA); Luis Mendes (ESAC, Spain)

- Planck Associate and Data Agreed: Antonio da Silva (CAUP, Portugal)

- Planck Collaborator: Domingos Barbosa (IT, Portugal)

ESA’s Industrial Team:- Prime contractor: Thales Alenia Space (France)- Subcontractors from Portugal:

Planck Surveyor: Portuguese contribution at CAUP

Present status (main axes of research):

- Characterization of the Planck galaxy cluster population:

- The Planck Sunyaev-Zel’dovich (SZ) cluster catalogue- Correlation with X-ray cluster catalogues

- Detailed simulations of Clusters and Large Scale signal: - Galaxy Cluster intrinsic properties - Planck Sky Model hydro simulations of galaxy clusters and diffuse gas

Future perspectives:

- Planck Science Projects for paper production using proprietary data:

• Production and exploitation of the Planck cluster catalogue

• Studies of the diffuse and kinetic SZ signals

• Multi-wavelength cluster Science

• Cosmological constraints from the integrated Sachs-Wolf effect

SZ

X-ray

PLANCK SKY MODEL - WG5 LSS Science Project: da Silva, Dolag, Rubiño-Martin 2008

CLUSTERS - WG5 LSS Science Project: da Silva et al 2006

Euclid: The ESA Mission to Map the Dark Universe

Project: ESA’s Cosmic Vision candidate, selected for assessment study. Euclid is designed to map the geometry of the dark Universe with unprecedented precision. It will measure the shape and spectra of galaxies over the entire extragalactic sky in the visible and Near Infrared (NIR), out to a look-back time of 10 billion years (z=2).

Total Cost: about €650 million (present estimate)

Mission timeline: Phase A study begun: end of 2007Definition phase (if selected): end of 2009 Implementation phase: 2013 Launch: by 2017Planned mission lifetime: 4 - 5 years

Main scientific goals:• determining the evolution of dark energy;• the nature of dark matter;• the seeds and evolution of cosmic structure;• and test the theory of general relativity.

http://sci.esa.int/euclid/

Euclid: Perspectives for future Portuguese participation

- Portugal was not part of the original DUNE andSPACE consortia that originated EUCLID

- Since December 2008, Portugal has been invitedby ESA to send observers to the Euclid Stakeholdersmeetings at ESTEC.

-Following the participation of Portuguese observers, Patricia Castro (CENTRA) and Antonio da Silva (CAUP), informal contacts with the Euclid Imaging Consortium have been established.

- A list of email contacts involving a group of 20 researchers from CAUP, CENTRA-IST, CFP-IST, CFTP-IST and CAAUL have been put in place to study the possibility of a Portuguese participation in the Euclid mission.


The continued Portuguese participation in large European/International projects requires the community working in Astronomy in Portugal:

• To establish an active network of collaborations within Portugalin strategically important science topics in order to build national teams with critical mass. The growth in the number of researchers must continuefor critical mass to be reached in major fields within Astronomy or Astronomical instrumentation.

• To build the capacity to be full partners in future space missions (payload participation)and to provide the long term scientific backbone for the Portuguese participation in the development of astronomical instrumentation.

• Coordinate the implementation of a long term strategy around key international projects based on the Portuguese priorities for Astronomy and Instrumentation that should direct the long term national investment in this field and associated areas.

• To support and continue to expand the high level of internationalization already reached in this community. This has been driven by the Portuguese participation in ESO and ESA.

The future

Future


More news next year…

Obrigado pelaatenção!Obrigado pelaatenção!

Future

Documents

Participação em projectos de Astronomia da ESA, da NASA e com o ESO