2021ApJ...909..126K

Query : 2021ApJ...909..126K

2021ApJ...909..126K - Astrophys. J., 909, 126-126 (2021/March-2)

Swift follow-up observations of gravitational-wave and high-energy neutrino coincident signals.

KEIVANI A., KENNEA J.A., EVANS P.A., TOHUVAVOHU A., RAPISURA R., OATES S.R., COUNTRYMAN S., BARTOS I., MARKA Z., VESKE D., MARKA S. and FOX D.B.

Abstract (from CDS):

Electromagnetic observations of gravitational-wave and high-energy neutrino events are crucial in understanding the physics of their astrophysical sources. X-ray counterparts are especially useful in studying the physics of the jet, the energy of the outflow, and the particle acceleration mechanisms in the system. Ultraviolet and optical observations can help us constrain the mass and velocity of the outflow and provide hints on the viewing angle. We present the Neil Gehrels Swift Observatory prompt searches for X-ray and UV/optical counterparts to the joint gravitational-wave and high-energy neutrino coincident events that happened during the third observing run of LIGO/Virgo. Swift observed the overlap between gravitational-wave and neutrino error regions for three of the considerable (p-value < 1%) joint gravitational-wave and high-energy neutrino coincident alerts, which were generated by the IceCube Neutrino Observatory in real time after triggering by the LIGO/Virgo gravitational-wave public alerts. The searches did not associate any X-ray or UV/optical counterparts with any of the joint gravitational-wave and high-energy neutrino coincident events; however, the follow-up of these alerts significantly improved the tiling techniques covering regions between the gravitational-wave sky maps and the neutrino's error regions, making the real-time system ready for future potential discoveries. We discuss the details of each follow-up procedure, the results of each search, and the plans for future searches.

Abstract Copyright: © 2021. The American Astronomical Society. All rights reserved.

Journal keyword(s): X-ray astronomy - X-ray sources - Gravitational waves - Cosmological neutrinos - Particle astrophysics

Simbad objects: 19

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Number of rows : 19
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 AT 2020cmr SN* 00 32 37.709 +41 18 56.29           SNIIn 4 0
2 AT 2020cja ev 01 48 45.410 +51 25 49.73           ~ 7 0
3 PMN J0509+0541 BLL 05 09 25.9644373872 +05 41 35.333820420 15.32 14.95 14.78 15.12   ~ 589 2
4 MASTER OT J071845.44+194439.4 CV? 07 18 45.44 +19 44 39.4           ~ 3 0
5 GrW 170817 GWE 13 09 48.0850 -23 22 53.343           ~ 2683 0
6 XMMSL2 J204928.9+060159 X 20 49 28.9 +06 01 59           ~ 1 0
7 1RXS J205242.6+081039 BLL 20 52 42.6125135040 +08 10 40.625854752       18.9   ~ 26 0
8 HD 199058 SB* 20 54 21.0848815512 +09 02 23.797559328   9.27 8.61     G5 24 0
9 CRTS CSS151110 J212806+023221 ? 21 28 06.0 +02 32 21           ~ 1 0
10 XMMSL2 J212817.4+034848 X 21 28 17.4 +03 48 48           ~ 1 0
11 2SXPS J213026.0+050604 X 21 30 26.0 +05 06 04           ~ 1 0
12 2SXPS J213032.7+050216 X 21 30 32.7 +05 02 16           ~ 1 0
13 2SXPS J213053.0+040229 X 21 30 53.0 +04 02 29           ~ 1 0
14 2SXPS J213122.3+050236 X 21 31 22.3 +05 02 36           ~ 1 0
15 1RXS J213242.1+042357 X 21 32 42.108 +04 23 57.52           ~ 1 0
16 AT 2019lvs CV* 21 45 34.903 +20 41 26.12           ~ 4 0
17 GrW 190728 GWE ~ ~           ~ 48 0
18 GrW 190521 GWE ~ ~           ~ 409 0
19 GrW 191216 213338 GWE ~ ~           ~ 37 0

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