2020ApJ...895...58G

Query : 2020ApJ...895...58G

2020ApJ...895...58G - Astrophys. J., 895, 58-58 (2020/May-3)

A search for neutron star-black hole binary mergers in the short gamma-ray burst population.

GOMPERTZ B.P., LEVAN A.J. and TANVIR N.R.

Abstract (from CDS):

Short gamma-ray bursts (SGRBs) are now known to be the product of the merger of two compact objects. However, two possible formation channels exist: neutron star-neutron star (NS-NS) or NS-black hole (BH). The landmark SGRB 170817A provided evidence for the NS-NS channel, thanks to analysis of its gravitational wave signal. We investigate the complete population of SGRBs with an associated redshift (39 events) and search for any divisions that may indicate that an NS-BH formation channel also contributes. Though no conclusive dichotomy is found, we find several lines of evidence that tentatively support the hypothesis that SGRBs with extended emission (EE; seven events) constitute the missing merger population: they are unique in the large energy-band sensitivity of their durations and have statistically distinct energies and host galaxy offsets when compared to regular (non-EE) SGRBs. If this is borne out via future gravitational wave detections, it will conclusively disprove the magnetar model for SGRBs. Furthermore, we identify the first statistically significant anticorrelation between the offsets of SGRBs from their host galaxies and their prompt emission energies.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Gamma-ray bursts - Compact objects - Black holes - Neutron stars - Transient sources

Simbad objects: 41

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Number of rows : 41
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 Fermi bn150120123 G 00 41 16.5630 +33 59 42.598           ~ 70 0
2 Fermi bn100117879 G 00 45 04.6610 -01 35 42.020           ~ 155 0
3 Fermi bn111117510 gB 00 50 46.220 +23 00 39.22           ~ 141 0
4 GRB 100625A gB 01 03 10.98 -39 05 18.3           ~ 124 0
5 PSO J027.8085-18.5940 G 01 51 14.05011120 -18 35 38.4976680           ~ 192 0
6 GRB 141212A G 02 36 29.9570 +18 08 47.228           ~ 70 0
7 PSO J047.1631+13.1580 G 03 08 39.14930640 +13 09 29.0253240           ~ 144 0
8 GRB 070729 gB 03 45 16.04 -39 19 19.9           ~ 81 0
9 GRB 070714B G 03 51 22.2720 +28 17 50.943           ~ 248 0
10 GRB 071227A G 03 52 31.0260 -55 59 00.890           ~ 201 0
11 GRB 101219A gB 04 58 20.45 -02 32 23.1           ~ 152 0
12 GRB 061006 G 07 24 07.8080 -79 11 55.188           ~ 214 0
13 SDSS J093805.33+153719.0 G 09 38 05.33384 +15 37 19.0406           ~ 146 0
14 GRB 150424A gB 10 09 13.35 -26 37 51.2           ~ 94 0
15 GRB 061217 gB 10 41 39.320 -21 07 22.11           ~ 128 0
16 GRB 090515 gB 10 56 41.0 +14 27 22           ~ 122 0
17 SDSS J112848.22+170418.5 G 11 28 48.22989 +17 04 18.5014           ~ 393 0
18 GALEX J123205.0-105600 Bz? 12 32 04.9717245480 -10 56 00.722548932         16.421 ~ 186 0
19 SDSS J123612.87+285858.8 BiC 12 36 12.8803407000 +28 58 58.780075656           ~ 328 1
20 GRB 090426 G 12 36 18.0470 +32 59 09.460           ~ 237 0
21 NGC 4993 Sy2 13 09 47.6908761600 -23 23 02.314044636   13.34   11.92   ~ 397 0
22 GrW 170817 GWE 13 09 48.0850 -23 22 53.343           ~ 2683 0
23 PSO J203.7673-22.1424 G 13 35 04.16044560 -22 08 32.8717680           ~ 178 0
24 GRB 060801 G 14 12 01.2620 +16 58 55.970           ~ 172 0
25 GRB 120804A G 15 35 47.5100 -28 46 56.110           ~ 99 0
26 GRB 140903A G 15 52 03.2650 +27 36 10.710           ~ 138 0
27 UGCS J162444.39-273226.8 G 16 24 44.38275 -27 32 26.8381     19.70     ~ 469 1
28 GRB 060502B gB 18 35 46.060 +52 37 51.45           ~ 153 1
29 Fermi bn160821937 gB 18 39 54.550 +62 23 30.35           ~ 190 0
30 Fermi bn080905499 G 19 10 42.0450 -18 52 54.510           ~ 200 0
31 Fermi bn131004904 gB 19 44 27.20 -02 57 31.0           ~ 113 0
32 GRB 140622A gB 21 08 41.56 -14 25 09.5           ~ 61 0
33 GRB 060614 G 21 23 32.140 -53 01 36.10           ~ 714 0
34 GRB 070429B G 21 52 03.6910 -38 49 42.820           ~ 125 0
35 GRB 051221 G 21 54 48.626 +16 53 27.16 19.49         ~ 377 0
36 GRB 170428A G 22 00 18.7100 +26 54 56.280           ~ 52 0
37 Fermi bn160624477 gB 22 00 46.21 +29 38 37.8           ~ 69 0
38 GRB 061201 gB 22 08 32.060 -74 34 47.90           ~ 205 0
39 Fermi bn090510016 G 22 14 12.6230 -26 34 58.550           ~ 548 0
40 NVSS J230126-385839 rG 23 01 26.7650 -38 58 40.422   22.22 21.22 21   ~ 325 1
41 GRB 190425 GWE ~ ~           ~ 438 0

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