Chapitres
- Looking
for the first galaxies
- Introduction
- Theoretical
& observational considerations
- Present
constraints based on observations
- First
galaxies & gravitational
telescopes
- Historical
overview
- Lensing
versus blank fields : a matter of
efficiency
- Current
surveys and expected results
- Future
developments
Résumé
These
two lectures will be dedicated to
the identification and study of
the first galaxies using clusters
of galaxies as gravitational
lenses. I will begin with a review
around the present understanding
on the formation of the first
galaxies based on theoretical and
observational considerations. The
current state of the art will be
presented and discussed regarding
the constraints on the
reionization process and the
physical properties of
star-forming galaxies during the
first billion years after the big
bang. The use of cluster-lenses is
expected to greatly improve the
current landscape in this area.
The relative efficiency of lensing
and blank fields in the
identification and study of the
first galaxies will be discussed
in details as a function of the
main parameters, namely the
redshift and properties of the
distant sources, the redshift and
properties of the lensing
clusters, and the survey
characteristics (i.e. area,
depth...), focusing on current
surveys. Finally, I will conclude
with a discussion around future
developments.
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Bibliographie
- Additional
references will be included in the
slides.
- First
Light in the Universe, Saas-Fee
Advanced Courses, Number 36.
Loeb, A.; Ferrara,
A.; Ellis, R.S. 2008, ISBN
978-3-540-74163-3
- In
the beginning: the first sources of
light and the reionization of the
universe
Barkana &
Loeb, Physics Reports, Volume 349,
Issue 2, p. 125-238 (2001)
- The
First Galaxies
Bromm
& Yoshida, Annual Review of
Astronomy and Astrophysics, vol. 49,
issue 1, pp. 373-407 (2011)
- ALMA
and the First Galaxies
Combes,
F., in The First Stars and galaxies :
Challenges for the next decade. AIP
Conference Proceedings, Volume 1294, 9
(2010)
- Cluster
Lenses
Kneib J.P., &
Natarajan, P., , "", The Astronomy and
Astrophysics Review, Volume 19, 47 (2011)
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