RXTE AGN Timing & Spectral Database

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).

As a very rough guideline for analyzing binned HEXTE spectra: When the 20-100 keV net source flux is less than ∼7×10⁻¹¹ erg cm⁻² s⁻¹, the highest useable energy bin will be (very roughly) ∼ 120-150 keV, 80-100 keV, or 50 keV typically when the exposure time for one cluster is >∼250 ks, ∼50-250 ks, or <∼50 ks, respectively. The highest useable energy bin can be ∼150-240 keV only when the 20-100 keV flux is above ∼7×10⁻¹¹ erg cm⁻² s⁻¹, and/or if the good exposure time per cluster HEXTE is above a couple hundred ks.

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 F_20-100 greater than ∼5-8×10⁻¹¹ erg cm⁻² s⁻¹.

Note added 2015 Jan 16: The HEXTE source spectral files for 1ES1101−232, 4C71.07, 4U0241+61, Circinus, ESO103−G35, Mkn 3, Mkn 348, and NGC 7172 had improperly-set values for the CORRSCAL keyword (the values should be 0.0, not 1.0). Files with corrected headers uploaded 2015 Jan 16.

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: 2015 Jan 17