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This book consists of invited reviews written by world-renowned
experts on the subject of the outskirts of galaxies, an upcoming
field which has been understudied so far. These regions are faint
and hard to observe, yet hide a tremendous amount of information on
the origin and early evolution of galaxies. They thus allow
astronomers to address some of the most topical problems, such as
gaseous and satellite accretion, radial migration, and merging. The
book is published in conjunction with the celebration of the end of
the four-year DAGAL project, an EU-funded initial training network,
and with a major international conference on the topic held in
March 2016 in Toledo. It thus reflects not only the views of the
experts, but also the scientific discussions and progress achieved
during the project and the meeting. The reviews in the book
describe the most modern observations of the outer regions of our
own Galaxy, and of galaxies in the local and high-redshift
Universe. They tackle disks, haloes, streams, and accretion as
observed through deep imaging and spectroscopy, and guide the
reader through the various formation and evolution scenarios for
galaxies. The reviews focus on the major open questions in the
field, and explore how they can be tackled in the future. This book
provides a unique entry point into the field for graduate students
and non-specialists, and serves as a reference work for researchers
in this exciting new field.
This book consists of invited reviews written by world-renowned
experts on the subject of the outskirts of galaxies, an upcoming
field which has been understudied so far. These regions are faint
and hard to observe, yet hide a tremendous amount of information on
the origin and early evolution of galaxies. They thus allow
astronomers to address some of the most topical problems, such as
gaseous and satellite accretion, radial migration, and merging. The
book is published in conjunction with the celebration of the end of
the four-year DAGAL project, an EU-funded initial training network,
and with a major international conference on the topic held in
March 2016 in Toledo. It thus reflects not only the views of the
experts, but also the scientific discussions and progress achieved
during the project and the meeting. The reviews in the book
describe the most modern observations of the outer regions of our
own Galaxy, and of galaxies in the local and high-redshift
Universe. They tackle disks, haloes, streams, and accretion as
observed through deep imaging and spectroscopy, and guide the
reader through the various formation and evolution scenarios for
galaxies. The reviews focus on the major open questions in the
field, and explore how they can be tackled in the future. This book
provides a unique entry point into the field for graduate students
and non-specialists, and serves as a reference work for researchers
in this exciting new field.
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