Commit c9a6abcc authored by Leo Pound Singer's avatar Leo Pound Singer

Comment out Aladin galaxy filtering section

See #155.
parent bdf93a27
......@@ -107,51 +107,51 @@ which is useful for distinguishing multiple MOCs for different credible levels.
.. figure:: /_static/aladin_fig2.png
:alt: Properties window
Querying and Filtering a Galaxy Catalog
---------------------------------------
Singer et al. [#Singer16b]_ discuss a fast algorithm for obtaining a
three-dimensional probability estimates of sky location and luminosity distance
from observations of binary compact object mergers with Advanced LIGO and
Virgo. Combining the reconstructed gravitational wave volumes with positions
and redshifts of possible host galaxies provides a filtered list of sky
location targets to search for the electromagnetic counterpart of the
gravitational wave signal. At present it is not implemented in Aladin a catalog
query by the GW three-dimensional posterior probability distribution. What we
can currently achieve is to query the entire galaxy catalog and, afterwards, to
filter the selection. Here a cut-distance filter is applied taking into account
the marginal distance posterior distribution integrated over the whole sky.
These tasks are efficiently performed in the Aladin Desktop using the data
collections tree and the filter methods as follows.
:menuselection:`Aladin data collections tree --> Select --> click on the
catalog item --> in the popup window check --> by region & MOC`
.. figure:: /_static/aladin_fig3.png
:alt: Aladin data collection tree
Now we can filter the galaxy catalog. From the main menu press
:menuselection:`Catalog --> Create a filter--> Properties --> Advanced mode -->
Or enter your filter definition`
An example about the Aladin filter using as galaxy selection the marginal
distance posterior distribution integrated over the whole sky is reported
below: ``${Dist} > DISTMEAN-DISTSTD && ${Dist} < DISTMEAN+DISTSTD {draw}``. The
posterior mean distance (Mpc) and the posterior standard deviation of distance
(Mpc) are reported in the fits file header with the keywords ``DISTMEAN`` and
``DISTSTD``. Click on ``Apply`` and then ``Export`` to create a new plane
consisting only of sources selected by the filter.
.. figure:: /_static/aladin_filter.png
:alt: Aladin filter
Finally, make thumbnails of the selected galaxies. From the main menu press
:menuselection:`Tool --> Thumbnail view generator` download and select in the
Aladin stack any image background to obtain the corresponding galaxy images.
.. figure:: /_static/aladin_fig4.png
:alt: Thumbnail view generator
.. Querying and Filtering a Galaxy Catalog
---------------------------------------
Singer et al. [#Singer16b]_ discuss a fast algorithm for obtaining a
three-dimensional probability estimates of sky location and luminosity distance
from observations of binary compact object mergers with Advanced LIGO and
Virgo. Combining the reconstructed gravitational wave volumes with positions
and redshifts of possible host galaxies provides a filtered list of sky
location targets to search for the electromagnetic counterpart of the
gravitational wave signal. At present it is not implemented in Aladin a catalog
query by the GW three-dimensional posterior probability distribution. What we
can currently achieve is to query the entire galaxy catalog and, afterwards, to
filter the selection. Here a cut-distance filter is applied taking into account
the marginal distance posterior distribution integrated over the whole sky.
These tasks are efficiently performed in the Aladin Desktop using the data
collections tree and the filter methods as follows.
:menuselection:`Aladin data collections tree --> Select --> click on the
catalog item --> in the popup window check --> by region & MOC`
.. figure:: /_static/aladin_fig3.png
:alt: Aladin data collection tree
Now we can filter the galaxy catalog. From the main menu press
:menuselection:`Catalog --> Create a filter--> Properties --> Advanced mode -->
Or enter your filter definition`
An example about the Aladin filter using as galaxy selection the marginal
distance posterior distribution integrated over the whole sky is reported
below: ``${Dist} > DISTMEAN-DISTSTD && ${Dist} < DISTMEAN+DISTSTD {draw}``. The
posterior mean distance (Mpc) and the posterior standard deviation of distance
(Mpc) are reported in the fits file header with the keywords ``DISTMEAN`` and
``DISTSTD``. Click on ``Apply`` and then ``Export`` to create a new plane
consisting only of sources selected by the filter.
.. figure:: /_static/aladin_filter.png
:alt: Aladin filter
Finally, make thumbnails of the selected galaxies. From the main menu press
:menuselection:`Tool --> Thumbnail view generator` download and select in the
Aladin stack any image background to obtain the corresponding galaxy images.
.. figure:: /_static/aladin_fig4.png
:alt: Thumbnail view generator
.. |apjl| replace:: *Astrophys. J. Lett.*
.. |A&A| replace:: *Astronomy & Astrophysics*
......@@ -161,9 +161,9 @@ Aladin stack any image background to obtain the corresponding galaxy images.
Fernique, P., Allen, et al. 2015, |A&A|, 578, A114.
:doi:`10.1051/0004-6361/201526075`
.. [#Singer16b]
Singer, L. P., Chen, H.-Y., Holz, D. E., et al. 2016, |apjl|, 829, L15.
:doi:`10.3847/2041-8205/829/1/L15`
.. .. [#Singer16b]
Singer, L. P., Chen, H.-Y., Holz, D. E., et al. 2016, |apjl|, 829, L15.
:doi:`10.3847/2041-8205/829/1/L15`
.. _`Aladin Desktop`: https://aladin.u-strasbg.fr/AladinDesktop/
.. _`VizieR`: http://vizier.u-strasbg.fr/index.gml
......
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