Overview: With the "RXTE AGN Timing & Spectral Database," we are providing for the community systematically-analyzed light curves and spectra for all Active Galactic Nuclei (AGN) observed by the Rossi X-ray Timing Explorer (RXTE) during its mission from Dec. 1995 to Jan. 2012. Information such as long-term average fluxes and the typical ranges in variations of flux or photon index for a given source can be useful in future observing proposals/programs.

RXTE was used for sustained long-term X-ray monitoring of sources -- over 5-10 years in many cases. RXTE's two co-aligned instruments, the Proportional Counter Array (PCA; 2-60 keV) and the High-Energy X-ray Timing Experiment (HEXTE; 15-250 keV), provided simultaneous broadband X-ray coverage from 2 to >100 keV for the brightest AGN.

For each object, we provide 2-10 keV ASCII-format flux light curves from PCA data, with one point per observation. For objects with sufficient flux, we also include light curves for the sub-bands 2-4, 4-7 and 7-10 keV. For selected bright blazars, we include light curves of photon index Γ, obtained from model fits to 3-15 keV PCA spectra while accounting for absorption by the Galactic column.

We also provide time-averaged (summed) PCA spectral files, plus HEXTE spectral files for sufficiently bright sources. For results of fits to the time-averaged PCA (+HEXTE) spectra, please refer to E. Rivers, A. Markowitz, and R. Rothschild, "Full Spectral Survey of Active Galactic Nuclei in the Rossi X-Ray Timing Explorer Archive," Rivers et al. 2013, ApJ, 772, 114 or E. Rivers, A. Markowitz, and R. Rothschild, "Spectral Survey of X-Ray Bright Active Galactic Nuclei from the Rossi X-Ray Timing Explorer", 2011, ApJS, 193, 3. Here, we list average model fit parameters for each object, along with long-term average 2-10 keV fluxes from PCA data, plus 20-100 keV fluxes from HEXTE for sufficiently bright sources.


Note: Click on one of the headings to re-order the list according to that category.

Source Name(s) Type R.A. & Decl. (J2000) Redshift # Good ObsIDs MJD(1)−
MJD(N)
LINKS
Mkn 335 NLSy1 00 06 19.52,
+20 12 10.5
0.0258 191 51661.95−
55559.31
LIGHT CURVES & SPECTRA
RHS 03
(RBS 78)
Sy1 00 34 16.7,
−79 05 20
0.0740 1 50328.63−
50328.78
LIGHT CURVES & SPECTRA
Mkn 348 Sy2 00 48 47.14,
+31 57 25.1
0.0150 308 50227.60−
55920.54
LIGHT CURVES & SPECTRA
IRAS F00521−7054 Sy2 00 53 56.1,
−70 38 04
0.0689 2 50473.64−
50482.50
LIGHT CURVES & SPECTRA
PG 0052+251 Sy1.2 00 54 52.10,
+25 25 38.0
0.1545 153 50689.64−
53432.75
LIGHT CURVES & SPECTRA
TONS180 NLSy1 00 57 19.94,
−22 22 59.1
0.0620 416 51301.25−
51607.23
LIGHT CURVES & SPECTRA
Fairall 9 Sy1 01 23 45.78,
−58 48 20.8
0.0470 707 50390.61−
52699.51
LIGHT CURVES & SPECTRA
NGC 526A Sy1.9/NELG 01 23 54.39,
−35 03 55.9
0.0191 22 52059.99−
52812.48
LIGHT CURVES & SPECTRA
RGB J0152+017
(RBS 248, BZB J0152+0147)
BL Lac 01 52 39.6,
+01 47 17
0.0800 23 54417.91−
54450.26
LIGHT CURVES & SPECTRA
Mkn 590 Sy1.2 02 14 33.56,
+00 46 00.1
0.0264 37 51684.43−
51975.07
LIGHT CURVES & SPECTRA
3C 66A
(BZB J0222+4302)
BL Lac 02 22 39.61,
+43 02 07.8
0.4440 58 52901.43−
53000.26
LIGHT CURVES & SPECTRA
1ES 0229+200 BL Lac 02 32 48.62,
+20 17 17.5
0.1400 205 55197.85−
55926.36
LIGHT CURVES & SPECTRA
NGC 1052 Sy2/Radio 02 41 04.80,
−08 15 20.8
0.0050 148 53527.11−
55192.48
LIGHT CURVES & SPECTRA
NGC 1068 Sy2/C-thick 02 42 40.71,
−00 00 47.8
0.0038 6 50311.78−
50313.95
LIGHT CURVES & SPECTRA
4U 0241+61 Sy1.2 02 44 57.70,
+62 28 06.5
0.0440 18 50733.62−
50765.42
LIGHT CURVES & SPECTRA
RHS 17 Sy1 03 00 08.0,
+16 30 14
0.0350 2 50159.28−
50160.36
LIGHT CURVES & SPECTRA
1H 0323+342
(RGB J0324+341)
FSRQ 03 24 41.16,
+34 10 45.9
0.0610 37 55564.47−
55672.07
LIGHT CURVES & SPECTRA
PKS 0332−403
(BZB J0334−4008)
FSRQ 03 34 13.6,
−40 08 25
1.4450 4 55320.18−
55355.17
LIGHT CURVES & SPECTRA
NGC 1386
(IRAS F03348−3609)
Sy2 03 36 46.2,
−35 59 58
0.0029 2 50739.97−
50746.84
LIGHT CURVES & SPECTRA
1ES 0414+009 BL Lac 04 16 52.49,
+01 05 23.9
0.2870 13 50146.25−
55600.21
LIGHT CURVES & SPECTRA
3C 111 BLRG/Sy1 04 18 21.28,
+38 01 35.8
0.0485 1004 50529.14−
55924.41
LIGHT CURVES & SPECTRA
3C 120 BLRG/Sy1 04 33 11.10,
+05 21 15.6
0.0330 1335 50153.18−
54221.88
LIGHT CURVES & SPECTRA
IRAS F04385−0828 Sy2 04 40 54.9,
−08 22 22
0.0151 2 50572.29−
50579.25
LIGHT CURVES & SPECTRA
IRAS 04575−7537
(ESO 33-G2)
Sy2 04 55 58.96,
−75 32 28.2
0.0181 12 50427.77−
50648.97
LIGHT CURVES & SPECTRA
Ark 120 Sy1 05 16 11.42,
−00 08 59.4
0.0327 197 50868.09−
52876.74
LIGHT CURVES & SPECTRA
Pictor A Sy1/LINER 05 19 49.72,
−45 46 43.8
0.0351 5 50576.18−
50579.47
LIGHT CURVES & SPECTRA
IRAS F05189−2524 Sy2/ULIRG 05 21 01.4,
−25 21 45
0.0426 2 50731.04−
50739.83
LIGHT CURVES & SPECTRA
E253−G3 Sy2 05 25 18.1,
−46 00 21
0.0425 2 50572.13−
50579.28
LIGHT CURVES & SPECTRA
PKS 0528+134 FSRQ 05 30 40.56,
+13 31 55.1
2.0600 99 50311.09−
55194.65
LIGHT CURVES & SPECTRA
PKS 0537−441
(BZB J0538−4405)
BL Lac 05 38 50.3,
−44 05 09
0.8940 3 55351.00−
55354.13
LIGHT CURVES & SPECTRA
PKS 0537−286
(BZB J0539−2839)
QSO 05 39 54.3,
−28 39 56
3.1040 24 54036.02−
54041.97
LIGHT CURVES & SPECTRA
PKS 0548−322 BL Lac 05 50 40.56,
−32 16 17.1
0.0690 6 51908.57−
51912.67
LIGHT CURVES & SPECTRA
NGC 2110 Sy2/C-thick 05 52 11.38,
−07 27 22.4
0.0078 27 50789.64−
52704.31
LIGHT CURVES & SPECTRA
MCG+8-11-11 Sy1 05 54 53.61,
+46 26 21.6
0.0205 1 50104.34−
50104.38
LIGHT CURVES & SPECTRA
PKS 0558−504 NLSy1 05 59 47.38,
−50 26 52.4
0.1372 1012 50734.45−
55923.16
LIGHT CURVES & SPECTRA
Mkn 3 Sy2 06 15 36.36,
+71 02 15.1
0.0135 12 50442.71−
50635.09
LIGHT CURVES & SPECTRA
1ES 0647+250 BL Lac 06 50 46.49,
+25 02 59.6
0.2030 20 55506.67−
55620.92
LIGHT CURVES & SPECTRA
1H 0707−495 NLSy1 07 08 41.5,
−49 33 07
0.0406 5 50521.15−
50522.40
LIGHT CURVES & SPECTRA
RGB J0710+591 BL Lac 07 10 30.07,
+59 08 20.4
0.1250 11 55562.32−
55627.18
LIGHT CURVES & SPECTRA
S5 0716+714 BL Lac 07 21 53.45,
+71 20 36.4
0.3000 231 50179.64−
55558.40
LIGHT CURVES & SPECTRA
Mkn 79
(UGC 3973)
Sy1.2 07 42 32.80,
+49 48 34.7
0.0222 1646 51610.57−
55925.58
LIGHT CURVES & SPECTRA
1ES 0806+524
(RBS 692, BZB J0809+5218)
BL Lac 08 09 49.2,
+52 18 58
0.1380 20 50488.25−
54538.35
LIGHT CURVES & SPECTRA
PG 0804+761 Sy1 08 10 58.60,
+76 02 42.5
0.1000 264 51202.53−
53362.83
LIGHT CURVES & SPECTRA
PKS 0829+046
(CRATES J0831+0429)
FSRQ 08 31 48.88,
+04 29 39.1
0.1737 87 54870.48−
55195.63
LIGHT CURVES & SPECTRA
4C 71.07
(CRATES J0841+7053)
FSRQ 08 41 24.37,
+70 53 42.2
2.1720 207 54869.06−
55558.34
LIGHT CURVES & SPECTRA
PKS 0921−213 FSRQ/Sy1 09 23 38.89,
−21 35 47.1
0.0520 14 53422.53−
53427.09
LIGHT CURVES & SPECTRA
Mkn 110 NLSy1.5 09 25 12.87,
+52 17 10.5
0.0353 1432 51610.56−
55925.59
LIGHT CURVES & SPECTRA
NGC 2992 Sy2 09 45 42.05,
−14 19 35.0
0.0077 24 53433.58−
53763.43
LIGHT CURVES & SPECTRA
MCG−5-23-16 Sy2/NELG 09 47 40.16,
−30 56 55.4
0.0085 18 50197.27−
53713.83
LIGHT CURVES & SPECTRA
NGC 3227 Sy1.5 10 23 30.58,
+19 51 54.2
0.0039 1078 50405.83−
53708.99
LIGHT CURVES & SPECTRA
NGC 3281
(IRAS F10295−3435)
Sy2 10 31 52.1,
−34 51 13
0.0110 6 53405.98−
53406.42
LIGHT CURVES & SPECTRA
1ES 1101−232 BL Lac 11 03 37.61,
−23 29 31.2
0.1860 99 53434.90−
55443.06
LIGHT CURVES & SPECTRA
Mkn 421
(BZB J1104+3812)
BL Lac 11 04 27.31,
+38 13 31.8
0.0300 1182 50143.27−
55926.50
LIGHT CURVES & SPECTRA
NGC 3516 Sy1.5 11 06 47.49,
+72 34 06.9
0.0088 628 50523.01−
55925.39
LIGHT CURVES & SPECTRA
PG 1116+215 Sy1/QSO 11 19 08.7,
+21 19 18
0.1765 5 50286.13−
50293.37
LIGHT CURVES & SPECTRA
Mkn 180
(CRATES J1136+7009)
BL Lac 11 36 26.41,
70 09 27.3
0.0453 13 50488.21−
51638.02
LIGHT CURVES & SPECTRA
NGC 3783 Sy1 11 39 01.76,
−37 44 19.2
0.0097 1719 50112.86−
55928.38
LIGHT CURVES & SPECTRA
NGC 3998 Sy1 11 57 56.13,
+55 27 12.9
0.0035 371 55561.62−
55921.21
LIGHT CURVES & SPECTRA
4C 29.45 (TXS 1156+295,
CRATES J1159+2914)
FSRQ 11 59 31.83,
+29 14 43.8
0.7247 45 50892.39−
55306.46
LIGHT CURVES & SPECTRA
NGC 4051 NLSy1.5 12 03 09.61,
+44 31 52.8
0.0023 2125 50196.49−
55925.45
LIGHT CURVES & SPECTRA
PG 1202+281 Sy1 12 04 42.11,
+27 54 11.8
0.1653 6 50725.22−
50730.15
LIGHT CURVES & SPECTRA
NGC 4151 Sy1.5 12 10 32.58,
+39 24 20.6
0.0033 509 50102.91−
53157.07
LIGHT CURVES & SPECTRA
PG 1211+143 NLSy1 12 14 17.66,
+14 03 13.3
0.0809 42 50676.12−
50999.67
LIGHT CURVES & SPECTRA
Mkn 766
(NGC 4253)
NLSy1 12 18 26.51,
+29 48 46.3
0.0129 768 52034.44−
55924.11
LIGHT CURVES & SPECTRA
NGC 4258
(M106)
Sy2/LINER 12 18 57.50,
+47 18 14.3
0.0015 1243 50420.70−
55924.13
LIGHT CURVES & SPECTRA
1ES 1218+304 BL Lac 12 21 21.94,
+30 10 37.1
0.1836 9 50593.74−
50597.67
LIGHT CURVES & SPECTRA
NGC 4388 Sy2/C-thick 12 25 46.75,
+12 39 43.5
0.0084 12 50148.71−
52769.42
LIGHT CURVES & SPECTRA
3C 273
(PG 1226+023)
FSRQ 12 29 06.70,
+02 03 08.6
0.1583 1960 50115.06−
55926.56
LIGHT CURVES & SPECTRA
TON1542 (Mkn 771,
Ark 374, RBS 1125)
Sy1 12 32 03.6,
+20 09 29
0.0630 9 50299.11−
50304.53
LIGHT CURVES & SPECTRA
NGC 4507 Sy2 12 35 36.63,
−39 54 33.3
0.0118 16 50137.50−
52816.18
LIGHT CURVES & SPECTRA
NGC 4593 Sy1 12 39 39.43,
−05 20 39.3
0.0090 1329 52089.04−
55926.57
LIGHT CURVES & SPECTRA
3C 279 FSRQ 12 56 11.1,
−05 47 22
0.5362 1987 50104.63−
55925.99
LIGHT CURVES & SPECTRA
NGC 4945 Sy2/C-thick 13 05 27.48,
−49 28 05.6
0.0019 533 50729.53−
54193.57
LIGHT CURVES & SPECTRA
Centaurus A
(NGC 5128)
NLRG 13 25 27.62,
−43 01 08.8
0.0018 455 50309.23−
55921.69
LIGHT CURVES & SPECTRA
MCG−6-30-15 NLSy1.2 13 35 53.71,
−34 17 43.9
0.0077 1555 50159.77−
55559.80
LIGHT CURVES & SPECTRA
IRAS 13349+2438 Sy1/NLSy1 13 37 18.73,
+24 23 03.4
0.1076 4 50771.96−
50772.81
LIGHT CURVES & SPECTRA
IC 4329A Sy1.2 13 49 19.27,
−30 18 34.0
0.0161 581 50298.84−
54319.25
LIGHT CURVES & SPECTRA
Mkn 279 Sy1.5 13 53 03.4,
+69 18 30
0.0305 63 50225.03−
52418.04
LIGHT CURVES & SPECTRA
Circinus Sy2/C-thick 14 13 09.95,
−65 20 21.2
0.0014 19 51098.16−
51711.71
LIGHT CURVES & SPECTRA
NGC 5506 Sy1.9 14 13 14.89,
−03 12 27.3
0.0062 651 50159.82−
53225.13
LIGHT CURVES & SPECTRA
NGC 5548 Sy1.5 14 17 59.52,
+25 08 12.4
0.0172 1015 50208.04−
55925.52
LIGHT CURVES & SPECTRA
PG 1416−129 Sy1/QSO 14 19 03.8,
−13 10 44
0.0791 3 51046.35−
51048.19
LIGHT CURVES & SPECTRA
H 1426+428 BL Lac 14 28 32.66,
+42 40 20.6
0.1291 169 51664.96−
53223.76
LIGHT CURVES & SPECTRA
PG 1440+356
(Mkn 478)
NLSy1 14 42 07.4,
+35 26 23
0.0791 9 50676.22−
50681.24
LIGHT CURVES & SPECTRA
PKS 1510−089 FSRQ 15 12 50.53,
−09 05 59.8
0.3600 1317 50430.66−
55926.01
LIGHT CURVES & SPECTRA
RHS 53
(RBS 1524)
BL Lac 15 40 15.8,
+81 55 06
??? 1 50156.05−
50156.21
LIGHT CURVES & SPECTRA
MCG−2-40-4 Sy2 15 48 24.95,
−13 45 28.0
0.0252 2 50712.39−
50718.74
LIGHT CURVES & SPECTRA
PG 1553+113 (CRATES J1555+1111) FSRQ 15 55 43.04,
+11 11 24.4
0.3600 48 50503.03−
52771.90
LIGHT CURVES & SPECTRA
PKS B1622−297 FSRQ 16 26 06.0,
−29 51 27.0
0.8150 79 50678.19−
53943.18
LIGHT CURVES & SPECTRA
NGC 6251 Sy2 16 32 32.0,
+82 32 16
0.0247 95 53433.18−
53793.18
LIGHT CURVES & SPECTRA
NGC 6240 Sy2/C-thick 16 52 58.87,
+02 24 03.3
0.0245 18 50761.63−
53405.70
LIGHT CURVES & SPECTRA
Mkn 501
(CRATES J1653+3945)
BL Lac 16 53 52.22,
+39 45 36.6
0.0337 496 50296.57−
55922.10
LIGHT CURVES & SPECTRA
NGC 6300 Sy2 17 16 59.47,
−62 49 14.0
0.0037 3 50499.32−
50499.86
LIGHT CURVES & SPECTRA
1ES 1727+502
(I Zw 187)
BL Lac 17 28 18.62,
+50 13 10.5
0.0554 17 50368.81−
51694.12
LIGHT CURVES & SPECTRA
PDS 456 Sy1/QSO 17 28 19.80,
−14 15 55.9
0.1840 137 50879.87−
55016.37
LIGHT CURVES & SPECTRA
NRAO 530 FSRQ 17 33 02.71,
−13 04 49.5
0.9020 72 54903.59−
55151.11
LIGHT CURVES & SPECTRA
1ES 1741+196 BL Lac 17 43 57.83,
+19 35 09.0
0.0840 14 51696.03−
51700.15
LIGHT CURVES & SPECTRA
3C 382 BLRG/Sy1 18 35 03.39,
+32 41 46.8
0.0579 23 50536.03−
53309.18
LIGHT CURVES & SPECTRA
IRAS 18325−5926
(Fairall 49)
Sy2 18 36 58.28,
−59 24 08.6
0.0200 24 50113.95−
50868.28
LIGHT CURVES & SPECTRA
ESO 103−G35
(IRAS F18333−6528)
Sy2/Radio 18 38 20.34,
−65 25 39.2
0.0133 15 50549.86−
50766.62
LIGHT CURVES & SPECTRA
3C 390.3 BLRG/Sy1 18 42 08.99,
+79 46 17
0.0561 332 50220.61−
53384.02
LIGHT CURVES & SPECTRA
Cygnus A
(3C 405)
Sy2/Radio 19 59 28.36,
+40 44 02.1
0.0561 16 50183.95−
51691.78
LIGHT CURVES & SPECTRA
1ES 1959+650 BL Lac 19 59 59.8,
+65 08 55
0.0470 147 51753.92−
55862.14
LIGHT CURVES & SPECTRA
PKS 2005−489 BL Lac 20 09 25.39,
−48 49 53.7
0.0710 158 50660.04−
55015.80
LIGHT CURVES & SPECTRA
RHS 56
(RBS 1688)
NLSy1 20 39 27.2,
−30 18 52
0.0791 1 50169.76−
50169.93
LIGHT CURVES & SPECTRA
Mkn 509 Sy1.2 20 44 09.74,
−10 43 24.6
0.0344 364 50204.14−
53945.82
LIGHT CURVES & SPECTRA
IC 5063 Sy2 20 52 02.34,
−57 04 07.6
0.0113 7 50410.99−
50437.07
LIGHT CURVES & SPECTRA
PKS 2126−158 FSRQ 21 29 12.18,
−15 38 41.0
3.2680 4 50167.15−
51273.04
LIGHT CURVES & SPECTRA
PKS 2155−304 BL Lac 21 58 52.07,
−30 13 32.1
0.1160 454 50219.03−
55364.76
LIGHT CURVES & SPECTRA
NGC 7172 Sy2 22 02 01.89,
−31 52 10.8
0.0087 10 50430.38−
50442.58
LIGHT CURVES & SPECTRA
BL Lac BL Lac 22 02 43.29,
+42 16 40.0
0.0686 1384 50645.05−
55926.28
LIGHT CURVES & SPECTRA
NGC 7213 Sy1.5/Radio 22 09 16.31,
−47 09 59.8
0.0058 819 53797.01−
55195.01
LIGHT CURVES & SPECTRA
CTA 102
(DA 582, RGB J2232+117)
FSRQ 22 32 36.41,
+11 43 50.9
1.0370 43 51179.28−
53775.27
LIGHT CURVES & SPECTRA
NGC 7314 Sy1.9 22 35 46.19,
−26 03 01.7
0.0048 140 51179.75−
52477.71
LIGHT CURVES & SPECTRA
Ark 564 NLSy1 22 42 39.35,
+29 43 31.3
0.0247 569 50440.77−
52702.85
LIGHT CURVES & SPECTRA
3C 454.3 FSRQ 22 53 57.75,
+16 08 53.6
0.8590 59 53503.03−
53619.04
LIGHT CURVES & SPECTRA
MR 2251−178 Sy1.5/QSO 22 54 05.80,
−17 34 55
0.0640 640 52034.44−
55924.11
LIGHT CURVES & SPECTRA
PKS 2255−282
(BZQ J2258−2758)
FSRQ 22 58 06.0,
−27 58 21
0.9258 1 50828.04−
50828.14
LIGHT CURVES & SPECTRA
NGC 7469 Sy1.2 23 03 15.62,
+08 52 26.4
0.0163 818 50185.23−
55194.94
LIGHT CURVES & SPECTRA
MCG−2-58-22
(Mkn 926)
Sy1.5 23 04 43.48,
−08 41 08.6
0.0469 31 50798.12−
51487.43
LIGHT CURVES & SPECTRA
NGC 7582 Sy2/C-thick 23 18 23.50,
−42 22 14.0
0.0053 23 52795.02−
53247.49
LIGHT CURVES & SPECTRA
RHS 61
(RBS 2005)
Sy1 23 25 54.2,
+21 53 14
0.1200 1 50202.07−
50202.30
LIGHT CURVES & SPECTRA
1ES 2344+514 BL Lac 23 47 04.84,
+51 42 17.9
0.0440 53 54380.27−
54476.16
LIGHT CURVES & SPECTRA
H 2356−309
(BZB J2359−3037)
BL Lac 23 59 07.9,
−30 37 41
0.1654 2 53320.37−
53320.83
LIGHT CURVES & SPECTRA

Data reduction details: PCA spectra were extracted for each observation using HEASOFT version 6.7 and the "rex" perl script. We extracted PCA STANDARD-2 data from PCUs 0, 1 and 2 prior to 1998 December 23; PCUs 0 and 2 from 1998 December 23 until 2000 May 12; and PCU 2 only after 2000 May 12. We used only events from the top Xe layer in order to maximize signal-to-noise. Standard screening was applied: data were rejected if taken with 20 minutes of the spacecraft's passing through the South Atlantic Anomaly (TIME_SINCE_SAA), if ELECTRON0 > 0.1 (ELECTRON2 for data after 2000 May 12), if the spacecraft was pointed within 10 degrees of the Earth, or if the source was > 0.02 degrees from the optical axis. All time-averaged spectral files were using the 2011 PCA background models "pca_bkgd_cmvle_eMv20111129.mdl" or "pca_bkgd_cmfaintl7_eMv20111129.mdl" for source fluxes brighter/fainter than ∼5 mCrab, respectively. HEXTE Science Event data used the same screening criteria as for the PCA.

The PCA response evolved gradually during the mission due to gas exchange between the propane layer and top-most Xenon layer. PCA responses were thus generated for each observation separately using PCARSP version 11.7.1. For the summed spectrum, the individual PCA responses were summed with weighting according to good exposure time. The PCA response file available for download for a given object is thus appropriate for that object only.

Light curves are in units of flux, with one data point per observation: fluxes/photon indices were obtained by spectral fitting for each observation. For the 2-10 keV light curves, we applied the best-fit time-averaged spectral model to each individual observation (exceptions: we fit a broken power-law model to the time-averaged spectra of 1ES 1101−232 and Mkn 501, but an unbroken power law provided good fits to their individual spectra). The spectral parameters that we kept free and the bandpass that we used are listed in the header of the 2-10 keV ASCII light curve. We usually kept photon index, power-law normalization, and the intensity of the Fe Kα emission line (if present in the time-averaged spectrum) free, while keeping all other parameters such as those for Compton reflection components or absorption components, or energy centroid and width of the Fe Kα line frozen at their time-averaged values unless otherwise stated. We fit over the bandpass 3.3 keV to 10, 18, or 23 keV, depending on the source's average X-ray brightness (2-10 keV flux typically >∼ 7×10−11, ∼1.5 −∼7×10−11, and <∼1.5×10−11 erg cm−2 s−1, respectively, with flux boundaries ∼a third lower for heavily-absorbed type 2 sources). Sub-band light curves were generated via a simple power-law to that band only; we used the 2005 background files, and will reprocess them using the 2011 background models at some point in the future. Uncertainties on each flux point were obtained by dividing the standard deviation of the N 16-s binned count rate light curve points in that observation by sqrt(N). Uncertainties on photon index are at the 90% confidence level, corresponding to Δχ2=2.71. For three bright sources, we added systematics to obtain values of reduced χ2 near 1: 3%, 5% and 5% for NGC 5506, NGC 4151 and Cen A, respectively. Entries in the time column correspond to the mid-point of each observation after data screening.

The following sources were modeled by Rivers et al. (2013) with ionized absorption: IRAS 13349+2438, Mkn 766, NGC 3227, NGC 3516, NGC 3783, NGC 4051, NGC 4593, NGC 5548, PG 0804+761. For those sources, we include an XSTAR table as part of the spectral files available for download.


Warnings:

1. PCA light curve flux systematic uncertainties: Flux uncertainties in the ASCII light curves and the displayed light curve plots are statistical only. Additional systematic uncertainties up to ∼3-7×10−13 (2-10 keV), ∼2-4×10−13 (2-4 keV), ∼1-2×10−13 (4-7 keV), ∼1×10−13 (7-10 keV) erg cm−2 s−1 due to unmodeled variations in the X-ray background may be present, e.g., up to an additional 10% for a 2-10 keV flux of 7×10-12 erg cm−2 s−1; see K. Jahoda et al. 2006, ApJS, 163, 401 for further details.

2. Spectral fit systematic uncertainties: The listed uncertainties on model fit parameters are purely statistical. Systematic uncertainty associated due to unmodeled variations in the PCA or HEXTE X-ray background will present an additional contribution to the uncertainties on parameters for broad components (e.g., power-law photon index Γ), with the exact amount depending on the bandpass used. For example, consider the case of a relatively faint source with a PCA-only spectrum modeled by a simple power law over the 2-20 keV band. For a 2-10 keV flux of ∼9 × 10−12 erg cm−2 s−1, one might expect additional systematic uncertainty on Γ of ∼0.10-0.15. For a 2-10 keV flux of ∼6 × 10−12, additional uncertainty on Γ can be ∼0.15-0.25.

3. PCA flux limits: As per K. Jahoda et al. 2006, ApJS, 163, 401, the PCA is confusion-limited at a 2-10 keV flux of ∼4×10−12 erg cm−2 s−1 (∼ 0.3 ct s−1 PCU−1). Spatial fluctiations in the Cosmic X-ray Background, on the order of 7% in 2-10 keV, cannot be predicted by the background model. These fluctuations set the limit below which fluxes cannot be determined by the PCA. For the following sources, we measured 2-10 keV fluxes fainter than ∼3 × 10−12 erg cm−2 s−1 (see Appendix A of Rivers et al. 2013), and we thus exclude them from the above table: 0420−014 (OA 129), 3C 446 (1ES 2223−051), 4C 38.41 (1633+382, OS 356), Arp 220, H0147−537, IRAS F01475−0740, IRAS F03362−1642, IRAS F08572+3915, IRAS F19254−7245 (AM 1925−724), LBQS 2212−1759, MCG−3-34-63, NGC 1320, NGC 3660, NGC 5347, NGC 6394, NGC 6890, OJ 287, PG 1424+240 (OQ 240), PG 1700+518, PKS 0235+164, PKS 0348−120, PKS 0405−385, RHS 15, RHS 54, TOL 1238−364 (IC 3639), and W Com (RGB J1221+282).

4. HEXTE Considerations: Cluster Rocking, Evolution in Background: HEXTE consisted of two clusters, A and B, both of which gathered simultaneous background data by two-sided rocking to offset positions every 16 or 32 s. We do not combine Cluster A and B data. Detector 2 in Cluster B lost spectral capabilities in 1996 and we consider data from detectors 0, 1, and 3 only.

Cluster A did not rock on/off source during 2004 Dec 13 - 2005 Jan 14, 2005 Dec 12 - 2006 Jan 4, during 2006 Jan 25, and it stopped rocking permanently on 2006 Mar 14. Cluster B stopped rocking on 2009 Dec 14. (Please see the "RXTE Big Events" web page for additional details.) We do not consider data taken after these dates. Good exposure times for the summed HEXTE spectra will differ significantly between Cluster A and Cluster B if a given source was observed during 2006-2009.

Typical 20-100 keV background fluxes were 6-12×10−9 erg cm−2 s−1, and HEXTE background subtraction is well understood for source fluxes down to roughly 1% of the background (D. Gruber et al. 1996, A&AS, 120C, 621).

The long-term average background flux has varied by a factor of ∼2 over the course of the RXTE mission due to variations in solar activity and the evolution of the satellite's altitude and thus the flux of intercepted particles; see Appendix B of Rivers et al. 2011 and also F. Fuerst et al. 2009, Earth Planet. Sci. Lett., 281, 125.

HEXTE exposure times have been corrected for dead-time (typically 30-40%) due to cluster rocking, pulse analyzer electronics, and recovery time following scintillation pulses caused by high energy particles. Exposure times for the summed spectra are typically less than half that of the summed PCA spectrum for a given object.

The summed HEXTE spectra for each of the 23 sources in Rivers et al. (2011) are detected at 3σ or better out to 100 keV; these sources have F20-100 greater than ∼5-8×10−11 erg cm−2 s−1.


We acknowledge support from NASA Award NNX11AD07G.


How to acknowledge use of this catalog: If you publish any data obtained from this web site, we would like you to include the following acknowledgment: "This work has made use of {lightcurves}{spectral files} provided by the University of California, San Diego Center for Astrophysics and Space Sciences, X-ray Group (R.E. Rothschild, A.G. Markowitz, E.S. Rivers, and B.A. McKim), obtained at http://cass.ucsd.edu/∼rxteagn/." Secondly, please also cite Rivers, Markowitz, & Rothschild (2013), ApJ, 772, 114. Finally, please send us an email (almarkowitz, rrothschild -at- ucsd -dot- edu) to let us know what you're doing; if you are doing an in-depth analysis and/or using multiple sources, we may like to discuss possible co-authorship. Thanks!


In the future, we will add 7-10/2-4 hardness ratio plots, as well as 10-18 keV PCA light curves and HEXTE light curves for selected bright sources.


IMAGE CREDITS: Centaurus A Dust Lane: European Southern Observatory; RXTE Launch: M.I.T. RXTE Group (xte.mit.edu); Artist's Conception of RXTE in Orbit: NASA/GSFC

Last updated: 2013 Oct 31