Dark Energy Spectroscopic Instrument
====================================

-  The Dark Energy Spectroscopic Instrument (DESI) will measure the
   effect of dark energy on the expansion of the universe. It will
   obtain optical spectra for tens of millions of galaxies and quasars,
   constructing a 3D map spanning the nearby universe to 11 billion
   light years.

Basic Information
-----------------

-  `The Dark Energy Spectroscopic Instrument (DESI)
   Webpage <https://www.desi.lbl.gov/>`__

Imaging Surveys:
~~~~~~~~~~~~~~~~

-  `DECam Legacy Surveys <http://www.legacysurvey.org/>`__

Social Media:
~~~~~~~~~~~~~

-  [@desisurvey: DESI's twitter
   handle](https://twitter.com/desisurvey?lang=en)

Important Documents:
--------------------

-  `Science Final Design
   Report <https://arxiv.org/pdf/1611.00036.pdf>`__
-  `Instrument Final Design
   Report <https://arxiv.org/pdf/1611.00037.pdf>`__

Policy and Community:
~~~~~~~~~~~~~~~~~~~~~

-  `DESI collaboration bylaws: collaboration, membership,
   governance​ <https://desi.lbl.gov/trac/attachment/wiki/PublicPages/bylaws-v11.pdf>`__
-  `DESI data management plan
   (DMP) <https://desi.lbl.gov/trac/attachment/wiki/PublicPages/datamanplan.pdf>`__
-  `DESI Policy on Membership Effort and Builder
   Status​ <https://desi.lbl.gov/trac/attachment/wiki/PublicPages/membership.approved.v1.pdf>`__
-  `DESI Policy on Ongoing Participation By Those Leaving DESI
   Institutions <https://desi.lbl.gov/trac/attachment/wiki/PublicPages/continuing_participants.approved.v1.pdf>`__
-  `DESI Publication
   Policy <https://desi.lbl.gov/trac/attachment/wiki/PublicPages/DESI_Publication_Policy_v1.0.pdf>`__
-  `DESI External Collaborator
   Policy <https://desi.lbl.gov/trac/attachment/wiki/PublicPages/external_collaborator.approved_v1.pdf>`__

Important Publications:
-----------------------

-  `Overview of the Dark Energy Spectroscopic
   Instrument <https://arxiv.org/abs/1807.09287>`__

Imaging Survey:
~~~~~~~~~~~~~~~

-  `Overview of the DESI Legacy Imaging
   Surveys <https://ui.adsabs.harvard.edu/abs/2019AJ....157..168D/abstract>`__
-  `Photometric Redshifts and Stellar Masses for Galaxies from the DESI
   Legacy Imaging
   Surveys <https://ui.adsabs.harvard.edu/abs/2019ApJS..242....8Z/abstract>`__

Technical Papers:
~~~~~~~~~~~~~~~~~

-  `Dark Energy Spectroscopic Instrument (DESI) Fiber Positioner Thermal
   and Wind Disturbance Test <https://arxiv.org/abs/1807.09383>`__
-  `The DESI instrument control systems: status and early
   testing <https://ui.adsabs.harvard.edu/abs/2018SPIE10707E..1DH/abstract>`__
-  `Dark energy spectroscopic instrument (DESI) fiber positioner
   production <https://ui.adsabs.harvard.edu/abs/2018SPIE10706E..69L/abstract>`__
-  `DESI focal plate
   alignment <https://ui.adsabs.harvard.edu/abs/2018SPIE10706E..43D/abstract>`__
-  `Fabrication of the DESI corrector
   lenses <https://ui.adsabs.harvard.edu/abs/2018SPIE10706E..0XM/abstract>`__
-  `The DESI fiber
   system <https://ui.adsabs.harvard.edu/abs/2018SPIE10702E..7OP/abstract>`__
-  `The DESI spectrograph system and
   production <https://ui.adsabs.harvard.edu/abs/2018SPIE10702E..7GE/abstract>`__
-  `A predictive optical sky background model for
   DESI <https://ui.adsabs.harvard.edu/abs/2018SPIE10702E..7DF/abstract>`__

Cosmology Related:
~~~~~~~~~~~~~~~~~~

Impacts of Fiber Assignments:
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

-  `Unbiased clustering estimates with the DESI fibre
   assignment <https://ui.adsabs.harvard.edu/abs/2018MNRAS.481.2338B/abstract>`__
-  `Imprint of DESI fiber assignment on the anisotropic power spectrum
   of emission line
   galaxies <https://ui.adsabs.harvard.edu/abs/2017JCAP...04..008P/abstract>`__
-  `Mitigating the impact of the DESI fiber assignment on galaxy
   clustering <https://ui.adsabs.harvard.edu/abs/2017JCAP...03..001B/abstract>`__

Software and Pipeline:
----------------------

-  `desihub - Public code associated with the Dark Energy Spectroscopic
   Instrument <https://github.com/desihub>`__

Key Components:
~~~~~~~~~~~~~~~

-  `desisurvey: Code for desi survey planning and
   implementation <https://github.com/desihub/desisurvey>`__
-  `surveysim: Simulate afternoon planning and nightly tile scheduling
   for the DESI survey <https://github.com/desihub/surveysim>`__
-  `specter: A toolkit for simulating multi-object
   spectrographs <https://github.com/desihub/specter>`__
-  `desitarget: DESI
   targeting <https://github.com/desihub/desitarget>`__
-  `desispec: DESI spectral
   pipeline <https://github.com/desihub/desispec>`__
-  `specsim: Quick simulations of spectrograph
   response <https://github.com/desihub/specsim>`__
-  `desisim: DESI simulations <https://github.com/desihub/desisim>`__
-  `fiberassign: Fiber assignment code for
   DESI <https://github.com/desihub/fiberassign>`__
-  `redrock: Redshift fitting for
   spectroperfectionism <https://github.com/desihub/redrock>`__
-  `desietc: Online exposure time
   calculator <https://github.com/desihub/desietc>`__