First demonstration of early warning gravitational wave alerts. (arXiv:2102.04555v2 [astro-ph.HE] UPDATED)
<a href="http://arxiv.org/find/astro-ph/1/au:+Magee_R/0/1/0/all/0/1">Ryan Magee</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chatterjee_D/0/1/0/all/0/1">Deep Chatterjee</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Singer_L/0/1/0/all/0/1">Leo P. Singer</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sachdev_S/0/1/0/all/0/1">Surabhi Sachdev</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kovalam_M/0/1/0/all/0/1">Manoj Kovalam</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Mo_G/0/1/0/all/0/1">Geoffrey Mo</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Anderson_S/0/1/0/all/0/1">Stuart Anderson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Brady_P/0/1/0/all/0/1">Patrick Brady</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Brockill_P/0/1/0/all/0/1">Patrick Brockill</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Cannon_K/0/1/0/all/0/1">Kipp Cannon</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Canton_T/0/1/0/all/0/1">Tito Dal Canton</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chu_Q/0/1/0/all/0/1">Qi Chu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Clearwater_P/0/1/0/all/0/1">Patrick Clearwater</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Codoreanu_A/0/1/0/all/0/1">Alex Codoreanu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Drago_M/0/1/0/all/0/1">Marco Drago</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Godwin_P/0/1/0/all/0/1">Patrick Godwin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ghosh_S/0/1/0/all/0/1">Shaon Ghosh</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Greco_G/0/1/0/all/0/1">Giuseppe Greco</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hanna_C/0/1/0/all/0/1">Chad Hanna</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kapadia_S/0/1/0/all/0/1">Shasvath J. Kapadia</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Katsavounidis_E/0/1/0/all/0/1">Erik Katsavounidis</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Oloworaran_V/0/1/0/all/0/1">Victor Oloworaran</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pace_A/0/1/0/all/0/1">Alexander E. Pace</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Panther_F/0/1/0/all/0/1">Fiona Panther</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Patwary_A/0/1/0/all/0/1">Anwarul Patwary</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pietri_R/0/1/0/all/0/1">Roberto De Pietri</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Piotrzkowski_B/0/1/0/all/0/1">Brandon Piotrzkowski</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Prestegard_T/0/1/0/all/0/1">Tanner Prestegard</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rei_L/0/1/0/all/0/1">Luca Rei</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sreekumar_A/0/1/0/all/0/1">Anala K. Sreekumar</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Szczepanczyk_M/0/1/0/all/0/1">Marek J. Szczepańczyk</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Valsan_V/0/1/0/all/0/1">Vinaya Valsan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Viets_A/0/1/0/all/0/1">Aaron Viets</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wade_M/0/1/0/all/0/1">Madeline Wade</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wen_L/0/1/0/all/0/1">Linqing Wen</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zweizig_J/0/1/0/all/0/1">John Zweizig</a>
Gravitational-wave observations became commonplace in Advanced LIGO-Virgo’s
recently concluded third observing run. 56 non-retracted candidates were
identified and publicly announced in near real time. Gravitational waves from
binary neutron star mergers, however, remain of special interest since they can
be precursors to high-energy astrophysical phenomena like $gamma$-ray bursts
and kilonovae. While late-time electromagnetic emissions provide important
information about the astrophysical processes within, the prompt emission along
with gravitational waves uniquely reveals the extreme matter and gravity during
– and in the seconds following – merger. Rapid communication of source location
and properties from the gravitational-wave data is crucial to facilitate
multi-messenger follow-up of such sources. This is especially enabled if the
partner facilities are forewarned via an early-warning (pre-merger) alert. Here
we describe the commissioning and performance of such a low-latency
infrastructure within LIGO-Virgo. We present results from an end-to-end mock
data challenge that detects binary neutron star mergers and alerts partner
facilities before merger. We set expectations for these alerts in future
observing runs.
Gravitational-wave observations became commonplace in Advanced LIGO-Virgo’s
recently concluded third observing run. 56 non-retracted candidates were
identified and publicly announced in near real time. Gravitational waves from
binary neutron star mergers, however, remain of special interest since they can
be precursors to high-energy astrophysical phenomena like $gamma$-ray bursts
and kilonovae. While late-time electromagnetic emissions provide important
information about the astrophysical processes within, the prompt emission along
with gravitational waves uniquely reveals the extreme matter and gravity during
– and in the seconds following – merger. Rapid communication of source location
and properties from the gravitational-wave data is crucial to facilitate
multi-messenger follow-up of such sources. This is especially enabled if the
partner facilities are forewarned via an early-warning (pre-merger) alert. Here
we describe the commissioning and performance of such a low-latency
infrastructure within LIGO-Virgo. We present results from an end-to-end mock
data challenge that detects binary neutron star mergers and alerts partner
facilities before merger. We set expectations for these alerts in future
observing runs.
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