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Commit e05c1416 authored by Shaon Ghosh's avatar Shaon Ghosh Committed by Leo Pound Singer
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Add MassGap classification

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1 merge request!23Add MassGap classification
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_static/MS181101ab-1-Preliminary.xml
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......@@ -54,16 +54,19 @@ xsi:schemaLocation="http://www.ivoa.net/xml/VOEvent/v2.0 http://www.ivoa.net/xml
</Group>
<Group type="Classification">
<Description>
Source classification: binary neutron star (BNS), neutron star-black hole (NSBH), binary black hole (BBH), or terrestrial (noise)
Source classification: binary neutron star (BNS), neutron star-black hole (NSBH), binary black hole (BBH), MassGap, or terrestrial (noise)
</Description>
<Param name="BNS" dataType="float" value="0.95" ucd="stat.probability">
<Description>Probability that the source is a binary neutron star merger</Description>
<Description>Probability that the source is a binary neutron star merger (both objects lighter than 3 solar masses)</Description>
</Param>
<Param name="NSBH" dataType="float" value="0.01" ucd="stat.probability">
<Description>Probability that the source is a neutron star - black hole merger</Description>
<Description>Probability that the source is a neutron star-black hole merger (primary heavier than 5 solar masses, secondary lighter than 3 solar masses)</Description>
</Param>
<Param name="BBH" dataType="float" value="0.03" ucd="stat.probability">
<Description>Probability that the source is a binary black hole merger</Description>
<Description>Probability that the source is a binary black hole merger (both objects heavier than 5 solar masses)</Description>
</Param>
<Param name="MassGap" dataType="float" value="0.0" ucd="stat.probability">
<Description>Probability that the source has at least one object between 3 and 5 solar masses</Description>
</Param>
<Param name="Terrestrial" dataType="float" value="0.01" ucd="stat.probability">
<Description>Probability that the source is terrestrial (i.e., a background noise fluctuation or a glitch)</Description>
......@@ -74,7 +77,7 @@ xsi:schemaLocation="http://www.ivoa.net/xml/VOEvent/v2.0 http://www.ivoa.net/xml
Qualitative properties of the source, conditioned on the assumption that the signal is an astrophysical compact binary merger
</Description>
<Param name="HasNS" dataType="float" value="0.95" ucd="stat.probability">
<Description>Probability that at least one object in the binary has a mass that is less than 3 solar masses</Description>
<Description>Probability that at least one object in the binary has a mass that is less than 2.83 solar masses</Description>
</Param>
<Param name="HasRemnant" dataType="float" value="0.91" ucd="stat.probability">
<Description>Probability that a nonzero mass was ejected outside the central remnant object</Description>
......
_static/MS181101ab-2-Initial.xml
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......@@ -54,16 +54,19 @@ xsi:schemaLocation="http://www.ivoa.net/xml/VOEvent/v2.0 http://www.ivoa.net/xml
</Group>
<Group type="Classification">
<Description>
Source classification: binary neutron star (BNS), neutron star-black hole (NSBH), binary black hole (BBH), or terrestrial (noise)
Source classification: binary neutron star (BNS), neutron star-black hole (NSBH), binary black hole (BBH), MassGap, or terrestrial (noise)
</Description>
<Param name="BNS" dataType="float" value="0.95" ucd="stat.probability">
<Description>Probability that the source is a binary neutron star merger</Description>
<Description>Probability that the source is a binary neutron star merger (both objects lighter than 3 solar masses)</Description>
</Param>
<Param name="NSBH" dataType="float" value="0.01" ucd="stat.probability">
<Description>Probability that the source is a neutron star - black hole merger</Description>
<Description>Probability that the source is a neutron star-black hole merger (primary heavier than 5 solar masses, secondary lighter than 3 solar masses)</Description>
</Param>
<Param name="BBH" dataType="float" value="0.03" ucd="stat.probability">
<Description>Probability that the source is a binary black hole merger</Description>
<Description>Probability that the source is a binary black hole merger (both objects heavier than 5 solar masses)</Description>
</Param>
<Param name="MassGap" dataType="float" value="0.0" ucd="stat.probability">
<Description>Probability that the source has at least one object between 3 and 5 solar masses</Description>
</Param>
<Param name="Terrestrial" dataType="float" value="0.01" ucd="stat.probability">
<Description>Probability that the source is terrestrial (i.e., a background noise fluctuation or a glitch)</Description>
......@@ -74,7 +77,7 @@ xsi:schemaLocation="http://www.ivoa.net/xml/VOEvent/v2.0 http://www.ivoa.net/xml
Qualitative properties of the source, conditioned on the assumption that the signal is an astrophysical compact binary merger
</Description>
<Param name="HasNS" dataType="float" value="0.95" ucd="stat.probability">
<Description>Probability that at least one object in the binary has a mass that is less than 3 solar masses</Description>
<Description>Probability that at least one object in the binary has a mass that is less than 2.83 solar masses</Description>
</Param>
<Param name="HasRemnant" dataType="float" value="0.91" ucd="stat.probability">
<Description>Probability that a nonzero mass was ejected outside the central remnant object</Description>
......
_static/MS181101ab-3-Update.xml
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......@@ -54,16 +54,19 @@ xsi:schemaLocation="http://www.ivoa.net/xml/VOEvent/v2.0 http://www.ivoa.net/xml
</Group>
<Group type="Classification">
<Description>
Source classification: binary neutron star (BNS), neutron star-black hole (NSBH), binary black hole (BBH), or terrestrial (noise)
Source classification: binary neutron star (BNS), neutron star-black hole (NSBH), binary black hole (BBH), MassGap, or terrestrial (noise)
</Description>
<Param name="BNS" dataType="float" value="0.95" ucd="stat.probability">
<Description>Probability that the source is a binary neutron star merger</Description>
<Description>Probability that the source is a binary neutron star merger (both objects lighter than 3 solar masses)</Description>
</Param>
<Param name="NSBH" dataType="float" value="0.01" ucd="stat.probability">
<Description>Probability that the source is a neutron star - black hole merger</Description>
<Description>Probability that the source is a neutron star-black hole merger (primary heavier than 5 solar masses, secondary lighter than 3 solar masses)</Description>
</Param>
<Param name="BBH" dataType="float" value="0.03" ucd="stat.probability">
<Description>Probability that the source is a binary black hole merger</Description>
<Description>Probability that the source is a binary black hole merger (both objects heavier than 5 solar masses)</Description>
</Param>
<Param name="MassGap" dataType="float" value="0.0" ucd="stat.probability">
<Description>Probability that the source has at least one object between 3 and 5 solar masses</Description>
</Param>
<Param name="Terrestrial" dataType="float" value="0.01" ucd="stat.probability">
<Description>Probability that the source is terrestrial (i.e., a background noise fluctuation or a glitch)</Description>
......@@ -74,7 +77,7 @@ xsi:schemaLocation="http://www.ivoa.net/xml/VOEvent/v2.0 http://www.ivoa.net/xml
Qualitative properties of the source, conditioned on the assumption that the signal is an astrophysical compact binary merger
</Description>
<Param name="HasNS" dataType="float" value="0.95" ucd="stat.probability">
<Description>Probability that at least one object in the binary has a mass that is less than 3 solar masses</Description>
<Description>Probability that at least one object in the binary has a mass that is less than 2.83 solar masses</Description>
</Param>
<Param name="HasRemnant" dataType="float" value="0.91" ucd="stat.probability">
<Description>Probability that a nonzero mass was ejected outside the central remnant object</Description>
......
changes.rst
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......@@ -14,6 +14,8 @@ Version 5 (unreleased)
.. rubric:: Alert Contents
* Add MassGap classification for compact binary mergers.
.. rubric:: Sample Code
Version 4 (2019-02-15)
......
content.rst
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......@@ -99,8 +99,8 @@ LIGO/Virgo GCN Notice.
| Fluence | | Gravitational-wave fluence in erg cm\ :math:`^{-2}` |
+-------------------+-----------------------------------------------------------+-----------------------------------------------------------+
| BNS, NSBH, BBH, | Probability that the source is a :term:`BNS`, | N/A |
| Terrestrial | :term:`NSBH`, :term:`NSBH` merger, or terrestrial (i.e., | |
| | noise) respectively | |
| MassGap, Noise | :term:`NSBH`, :term:`BBH` merger, :term:`MassGap` or | |
| | terrestrial (i.e, noise) respectively | |
+-------------------+-----------------------------------------------------------+ +
| HasNS, HasRemnant | Probability, under the assumption that the source is not | |
| | noise, that at least one of the compact objects was a | |
......@@ -172,14 +172,15 @@ NSBH, and BBH) in terms of the component masses :math:`m_1` and :math:`m_2`.
min_mass = 1
ns_max_mass = 3
max_mass = 9
bh_min_mass = 5
max_mass = 11
ax = plt.axes(aspect=1)
ax.set_xlim(min_mass, max_mass)
ax.set_ylim(min_mass, max_mass)
ax.spines['top'].set_visible(False)
ax.spines['right'].set_visible(False)
ticks = [min_mass, ns_max_mass]
ticks = [min_mass, ns_max_mass, bh_min_mass]
ax.set_xticks(ticks)
ax.set_yticks(ticks)
......@@ -193,28 +194,40 @@ NSBH, and BBH) in terms of the component masses :math:`m_1` and :math:`m_2`.
ax.xaxis.set_label_coords(1.0, -0.025)
ax.yaxis.set_label_coords(-0.025, 1.0)
bns_color, nsbh_color, bbh_color = seaborn.color_palette('pastel', 3)
bns_color, nsbh_color, gap_color, bbh_color = seaborn.color_palette(
'pastel', 4)
p = ax.add_patch(Rectangle((min_mass, min_mass),
ns_max_mass - min_mass, ns_max_mass - min_mass,
color=bns_color, linewidth=0))
ax.text(*get_center(p.get_bbox()), 'BNS', ha='center', va='center')
p = ax.add_patch(Rectangle((ns_max_mass, ns_max_mass),
max_mass - ns_max_mass, max_mass - ns_max_mass,
p = ax.add_patch(Rectangle((bh_min_mass, bh_min_mass),
max_mass - bh_min_mass, max_mass - bh_min_mass,
color=bbh_color, linewidth=0))
ax.text(*get_center(p.get_bbox()), 'BBH', ha='center', va='center')
p = ax.add_patch(Rectangle((min_mass, ns_max_mass),
ns_max_mass - min_mass, max_mass - ns_max_mass,
color=nsbh_color, linewidth=0))
p = ax.add_patch(Rectangle((min_mass, bh_min_mass),
ns_max_mass - min_mass, max_mass - bh_min_mass,
color=nsbh_color, linewidth=0))
ax.text(*get_center(p.get_bbox()), 'NSBH', ha='center', va='center')
p = ax.add_patch(Rectangle((ns_max_mass, min_mass),
max_mass - ns_max_mass, ns_max_mass - min_mass,
p = ax.add_patch(Rectangle((bh_min_mass, min_mass),
max_mass - bh_min_mass, ns_max_mass - min_mass,
color=nsbh_color, linewidth=0))
ax.text(*get_center(p.get_bbox()), 'NSBH', ha='center', va='center')
ax.add_patch(Rectangle((min_mass, ns_max_mass),
max_mass - min_mass, bh_min_mass - ns_max_mass,
color=gap_color, linewidth=0))
ax.add_patch(Rectangle((ns_max_mass, min_mass),
bh_min_mass - ns_max_mass, max_mass - min_mass,
color=gap_color, linewidth=0))
p = ax.add_patch(Rectangle((ns_max_mass, ns_max_mass),
bh_min_mass - ns_max_mass, bh_min_mass - ns_max_mass,
color=gap_color, linewidth=0))
ax.text(*get_center(p.get_bbox()), 'MassGap', ha='center', va='center')
for args in [[1, 0, 0.025, 0], [0, 1, 0, 0.025]]:
ax.arrow(*args,
transform=ax.transAxes, clip_on=False,
......
glossary.rst
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......@@ -9,6 +9,11 @@ Glossary
BNS
Binary neutron star, a binary system composed of two neutron stars.
MassGap
Compact binary systems with at least one compact object whose mass is
in the hypothetical "mass gap" between neutron stars and black holes,
defined here as 3-5 solar masses.
CBC
Compact binary coalescence.
......
procedures/inference.rst
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......@@ -12,7 +12,8 @@ Classification
The classification consists of four numbers, summing to unity, that give the
probability that the source is a :term:`BNS`, :term:`NSBH`, :term:`BBH` merger,
or terrestrial (i.e. a background fluctuation or a glitch).
falls in :term:`mass gap <MassGap>` or terrestrial (i.e. a background fluctuation
or a glitch).
This assumes that terrestrial and astrophysical events occur as independent
Poisson processes. A source-dependent weighting of matched-filter templates is
......
tutorial/receiving.rst
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......@@ -149,6 +149,7 @@ Upon running this, you should see:
BNS = 0.95
NSBH = 0.01
BBH = 0.03
MassGap = 0.0
Terrestrial = 0.01
HasNS = 0.95
HasRemnant = 0.91
......
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