2019ApJS..245...19B


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.14CEST14:04:25

2019ApJS..245...19B - Astrophys. J., Suppl. Ser., 245, 19-19 (2019/November-0)

A uniform search for thermonuclear burst oscillations in the RXTE legacy data set.

BILOUS A.V. and WATTS A.L.

Abstract (from CDS):

We describe a blind uniform search for thermonuclear burst oscillations (TBOs) in the majority of Type I bursts observed by the Rossi X-ray Timing Explorer (RXTE) (2118 bursts from 57 neutron stars). We examined 2-2002 Hz power spectra from the Fourier transform in sliding 0.5-2 s windows, using fine-binned light curves in the 2-60 keV energy range. The significance of the oscillation candidates was assessed by simulations which took into account light-curve variations, dead time, and the sliding time windows. Some of our sources exhibited multi-frequency variability at <=15 Hz that cannot be readily removed with light-curve modeling and may have an astrophysical (non-TBO) nature. Overall, we found that the number and strength of potential candidates depends strongly on the parameters of the search. We found candidates from all previously known RXTE TBO sources, with pulsations that had been detected at similar frequencies in multiple independent time windows, and discovered TBOs from SAX J1810.8-2658. We could not confirm most previously reported tentative TBO detections or identify any obvious candidates just below the detection threshold at similar frequencies in multiple bursts. We computed fractional amplitudes of all TBO candidates and placed upper limits on non-detections. Finally, for a few sources we noted a small excess of candidates with powers comparable to fainter TBOs, but appearing in single independent time windows at random frequencies. At least some of these candidates may be noise spikes that appear interesting due to selection effects. The potential presence of such candidates calls for extra caution if claiming single-window TBO detections.

Abstract Copyright: © 2019. The American Astronomical Society. All rights reserved.

Journal keyword(s): X-rays: bursts

VizieR on-line data: <Available at CDS (J/ApJS/245/19): sources.dat table2.dat table4.dat>

Simbad objects: 57

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Number of rows : 57

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 4U 0513-40 LXB 05 14 06.59 -40 02 37.0           ~ 155 1
2 V* V1055 Ori LXB 06 17 07.3 +09 08 13   18.80 18.5     ~ 522 1
3 V* UY Vol LXB 07 48 33.71 -67 45 07.7 16.10 17.00 16.9 16.7 17.05 ~ 585 0
4 4U 0836-42 LXB 08 37 23.6 -42 54 02           ~ 64 0
5 4U 0919-54 LXB 09 20 26.4814865475 -55 12 24.507988707 20.40 21.30 21.0     ~ 149 0
6 V* GR Mus LXB 12 57 37.153 -69 17 18.98   19.40 19.1     ~ 246 0
7 4U 1323-62 LXB 13 26 37.0 -62 08 09           ~ 166 0
8 V* BR Cir HXB 15 20 40.85 -57 10 00.1   21.4 21.4     ~ 734 1
9 V* QX Nor LXB 16 12 43.0 -52 25 23           ~ 849 1
10 V* V801 Ara LXB 16 40 55.5979962948 -53 45 04.953475039 17.50 18.20 17.5   17.07 ~ 802 1
11 [KRL2007b] 214 LXB 17 00 58.46 -46 11 08.6           ~ 210 0
12 MXB 1658-298 LXB 17 02 06.54 -29 56 44.1 18.35 18.75 18.3     ~ 335 0
13 X Ara X-1 LXB 17 06 15.314 -43 02 08.69           ~ 244 1
14 4U 1705-44 LXB 17 08 54.470 -44 06 07.35           ~ 362 0
15 RX J1709.5-2639 LXB 17 09 34 -26 39.9           ~ 108 0
16 [KRL2007b] 225 LXB 17 10 12.3 -28 07 54           ~ 77 0
17 IGR J17191-2821 XB* 17 19 15 -28 17.9           ~ 45 0
18 4U 1722-30 LXB 17 27 33.25 -30 48 07.4     12.50     ~ 239 1
19 NAME Slow Burster LXB 17 31 57.73 -33 50 02.5     15.50     ~ 775 1
20 NAME Rapid Burster LXB 17 33 24.61 -33 23 19.8           ~ 385 2
21 KS 1731-260 LXB 17 34 13.46 -26 05 18.6       22.8 20.9 ~ 399 0
22 1ES 1735-26.9 LXB 17 38 17.12 -26 59 38.6           ~ 153 0
23 V* V926 Sco LXB 17 38 58.3 -44 27 00 16.90 17.70 17.5     ~ 432 0
24 [KRL2007b] 258 LXB 17 39 53.95 -28 29 46.8           ~ 84 0
25 KS 1741-293 LXB 17 44 51.63 -29 20 42.8           ~ 92 0
26 2XMM J174502.1-285450 LXB 17 45 02.33 -28 54 49.7           ~ 119 0
27 2E 3943 LXB 17 46 05.20 -29 30 53.3           ~ 191 1
28 [KRL2007b] 275 LXB 17 47 02.60 -28 52 58.9     14.20     ~ 159 0
29 [KRL2007b] 277 LXB 17 47 18.06 -27 20 38.9           ~ 72 0
30 1RXS J174725.6-300241 LXB 17 47 25.4 -30 02 41           ~ 58 0
31 X Sgr X-1 LXB 17 47 56.0 -26 33 49           ~ 352 0
32 IGR J17480-2446 LXB 17 48 04.831 -24 46 48.87           ~ 157 0
33 NAME TER 5 X-1 LXB 17 48 05.196 -24 46 47.40           ~ 199 1
34 [KRL2007b] 281 LXB 17 48 13.148 -36 07 57.02     20.9     ~ 88 0
35 [PLV2002] CX1 LXB 17 48 52.163 -20 21 32.40           ~ 170 1
36 IGR J17498-2921 LXB 17 49 55.35 -29 19 19.6           ~ 52 0
37 4U 1746-371 LXB 17 50 12.66 -37 03 08.2     8.43     ~ 185 1
38 SAX J1750.8-2900 LXB 17 50 24.42 -29 02 15.4           ~ 131 0
39 Granat 1747-312 LXB 17 50 46.862 -31 16 28.86           ~ 103 1
40 IGR J17511-3057 LXB 17 51 08.55 -30 57 41.7           ~ 91 1
41 [KRL2007b] 297 LXB 17 59 45.7 -22 01 39           ~ 61 1
42 SAX J1806.5-2215 LXB 18 06 34 -22 15.1           ~ 45 0
43 V* V4580 Sgr LXB 18 08 27.54 -36 58 44.3   16.81 16.51     ~ 894 0
44 XTE J1810-189 LXB 18 10 20.86 -19 04 11.2           ~ 47 0
45 V* V4722 Sgr LXB 18 10 44.47 -26 09 01.2   21.5       ~ 83 0
46 V* V5511 Sgr LXB 18 13 39.03 -33 46 22.3   18.61 18.33 18.05   ~ 179 0
47 V* NP Ser LXB 18 16 01.389 -14 02 10.62   18.8       K 608 2
48 X Sgr X-4 LXB 18 23 40.57 -30 21 40.6   19.06 18.81     ~ 921 1
49 V* V4634 Sgr LXB 18 29 28.2 -23 47 49 18.90 19.40 19     ~ 300 0
50 Cl* NGC 6652 SAW V10 LXB 18 35 43.649 -32 59 26.77     18.9     ~ 90 0
51 V* MM Ser LXB 18 39 57.56 +05 02 09.6   19.2 19.2     ~ 328 0
52 2MAXI J1900-248 LXB 19 00 08.65 -24 55 13.7     18.09     ~ 187 0
53 X Aql X-1 LXB 19 11 16.0572031521 +00 35 05.876658556           ~ 1040 1
54 V* V1405 Aql LXB 19 18 47.871 -05 14 17.09 20.90 21.40 21.0     ~ 446 0
55 V* LZ Aqr LXB 21 23 14.54 -05 47 52.9 15.90 16.78 16.8     ~ 143 0
56 4U 2129+12 LXB 21 29 58.3124 +12 10 02.670 14.50 15.70 15.8     ~ 303 1
57 V* V1341 Cyg LXB 21 44 41.1544523872 +38 19 17.065856122 15.00 15.13 14.68 15.00   A9III 1093 1

    Equat.    Gal    SGal    Ecl

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2021.04.14-14:04:25

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