J/ApJ/935/L7 Intrinsic strain upper limit for SNR 1987A (Owen+, 2022)
First Constraining Upper Limits on Gravitational-wave Emission from NS1987A in
SNR1987A.
Owen B.J., Lindblom L., Pinheiro L.S.
<Astrophys. J., 935, L7 (2022)>
=2022ApJ...935L...7O 2022ApJ...935L...7O
ADC_Keywords: Gravitational wave; Stars, neutron; Supernova remnants;
Radio sources
Keywords: Gravitational waves ; Neutron stars ; Supernova remnants
Abstract:
We report on a search for continuous gravitational waves (GWs) from NS
1987A, the neutron star born in SN 1987A. The search covered a
frequency band of 75-275Hz, included a wide range of spin-down
parameters for the first time, and coherently integrated 12.8days of
LIGO data below 125Hz and 8.7days of LIGO data above 125Hz from the
second Advanced LIGO-Virgo observing run. We found no astrophysical
signal. We set upper limits on GW emission as tight as an intrinsic
strain of2x10-25 at 90% confidence. The large spin-down parameter
space makes this search the first astrophysically consistent one for
continuous GWs from NS1987A. Our upper limits are the first consistent
ones to beat an analog of the spin-down limit based on the age of the
neutron star and hence are the first GW observations to put new
constraints on NS1987A.
Objects:
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RA (2000) DE Designation(s)
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05 35 28.02 -69 16 11.0 SNR 1987A = SN 1987A
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
fig1.dat 18 198 The direct observational 90% confidence upper limits
on the intrinsic strain
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See also:
J/ApJ/813/39 : LIGO gravitational-wave (GW) searches from SNRs (Aasi+, 2015)
Byte-by-byte Description of file: fig1.dat
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Bytes Format Units Label Explanations
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1- 5 F5.1 Hz Freq [75/275] Frequency
7- 18 E12.6 --- h0 [1e-25/3e-25] Intrinsic strain upper limit
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History:
From electronic version of the journal
(End) Prepared by [AAS], Coralie Fix [CDS], 10-Jun-2024