List of accreting X-ray pulsars

List of accreting X-ray pulsars

Source	RA	Dec	l	b	Pspin (s)	Porbit (d)	Type	CRSF?	Persistent?	Notes
CXOU J005047.9-731817	12.699963	-73.305018	302.995436	-43.823153	292		BeXRB?		T	aka SXP 292
RX J0059.2-7138	14.803112	-71.645828	302.059336	-45.469247	2.76	82?	BeXRB?	C?	T	aka SXP 2.76
RX J0101.8-7223	15.467910	-72.392796	301.821935	-44.712961	175		BeXRB		T
SMC X-1	19.271456	-73.443343	300.414946	-43.559342	0.71	3.892	SG		P	eclipsing
3A 0114+650	19.511228	65.291623	125.709976	2.563488	9828	11.6	SG		P	30.7 d superorbital modulation
4U 0115+634	19.633194	63.742522	125.923515	1.028265	3.6	24.3	BeXRB	C	T	5 or more lines
SXP 265	23.214439	-74.429258	299.185905	-42.396387	264.52	~146	BeXRB		PT	SMC region, persistent low luminosity, one type I outburst
RX J0146.9+6121	26.750876	61.356573	129.541104	-0.800112	1412	330?	BeXRB		T	aka V* V831 Cas
IGR J01583+6713	29.577033	67.223185	129.352236	5.188723	469?		BeXRB	C?	T	controversial claim of CRSF features
Swift J0243.6+6124	40.918432	61.434378	135.934157	1.428788	9.86	27.587	BeXRB		T	Galactic ULX?
V 0332+53	53.749630	53.173140	146.052090	-2.194026	4.37	34.25	BeXRB	C	T	multiple lines
X Per	58.846151	31.045836	163.081353	-17.136203	830	250.3	BeXRB	C?	P	magnetar?
RX J0440.9+4431	70.247207	44.530344	159.847095	-1.270023	203	155	BeXRB		P	aka LS V+44 17, persistent, but with outbursts
LXP 169	76.981153	-68.418135	279.245167	-34.534204	168.8	24.3	BeXRB		T?	NS eclipsing companion
Swift J053041.9-665426	82.675788	-66.907566	276.997292	-32.675902	28.78		BeXRB		T?
LMC X-4	83.206501	-66.370332	276.334942	-32.529084	13.5	1.4	SG		P	superorbital variation ~30 d
1A 0535+26	84.727393	26.315776	181.445049	-2.643537	103	111.1	BeXRB	C	T
SAX J0635.2+0533	98.822528	5.553870	206.149196	-1.044562	0.0338		BeXRB		T	low luminosity
MXB 0656-07	104.572030	-7.209774	220.128540	-1.767278	160.4	101.2	BeXRB	C		aka XTE J0658-073
3A 0726-260	112.223241	-26.108019	240.281581	-4.050430	103.2	34.5	BeXRB		T
RX J0812.4-3114	123.118149	-31.247807	249.578200	1.542815	31.9	80	BeXRB		T
GS 0834-430	128.981072	-43.185598	262.020238	-1.509977	12.3	105.8	BeXRB		T
Vela X-1	135.528560	-40.554654	263.058248	3.929864	283	8.96	SG	C	P	eclipsing
GRO J1008-57	152.439620	-58.292035	282.996761	-1.822544	93.7	249.48	BeXRB	C?	T	outbursts predicted precisely
4U 1036-56	159.397094	-56.798840	285.352684	1.433482	862		BeXRB		P?	aka RX J1037.5-564/LS 1698
1A 1118-616	170.238174	-61.916707	292.498528	-0.891807	407	24?	BeXRB	C	T
Cen X-3	170.312856	-60.623776	292.090328	0.335524	4.8	2.09	SG	C	P	disk-fed HMXB
1E1145.1-6141	176.868942	-61.953720	295.489729	-0.009704	297	14.4	SG			(V* V830 Cen) varying luminosity states
4U 1145-619	177.000032	-62.206910	295.611079	-0.240241	292	187.5	BeXRB		PT
GX 301-2	186.656453	-62.770359	300.098061	-0.035212	686	41.5	SG	C	P	very massive companion, strong orbital variability
3A 1239-599	190.508997	-60.200951	301.762822	2.649455	191
GX 304-1	195.321198	-61.601845	304.102702	1.247519	272	132.2	BeXRB	C	T	Strong spectral parameter variations
SAX J1324.4-6200	201.108853	-62.016515	306.792444	0.607646	171	22	BeXRB?
2S 1417-624	215.303896	-62.698168	313.021369	-1.598347	17.6	42.12	BeXRB		T
SAX J1452.8-5949	223.207002	-59.820983	317.646019	-0.463151	437		BeXRB?
4U 1538-522	235.597300	-52.386011	327.419660	2.163700	530	3.7	SG	C	P
2S 1553-542	239.452345	-54.416113	327.942599	-0.857197	9.3	29.56	BeXRB?		P	Occasional outbursts
IGR J16194-2810	244.888926	-28.127773	349.119337	15.541316			SyXB
Swift J1626.6-5156	246.652146	-51.941848	332.780988	-2.002708	15.4	132.9	BeXRB	C	T	strong flares
IGR J16318-4848	247.951259	-48.816876	335.615970	-0.447754			SG		P	super absorbed source
IGR J16320-4751	248.009669	-47.874785	336.330340	0.167654	1309	8.986	SG		P	aka 2FGL J1632.4-4753c
4U 1626-67	248.069509	-67.461207	321.788013	-13.091773	7.67	0.029	UCXB	C	P	Torque reversals; only UCXB with CRSF.
IGR J16358-4726	249.124997	-47.623903	337.023067	-0.213710	5880		SyXB
IGR J16393-4643	249.772382	-46.704006	338.001098	0.075060	912	3.7	SyXB			aka AX J1639.0-4642
IGR J16465-4507	251.646902	-45.117960	340.053530	0.135029	228	30.243			P	aka 2MASS J16463526-4507045
Her X-1	254.457539	35.342324	58.148987	37.523034	1.24	1.7	IM	C	P
AX J1700.1-4157	255.018132	-41.968217	344.037996	0.235782	715		BeXRB?
OAO 1657-415	255.202665	-41.654882	344.369539	0.320505	37.7	10.4	SG	C?	P	eclipsing
4U 1700-37	255.986566	-37.844121	347.754446	2.173492		3.4	SG		P	No pulsations; eclipsing source
4U 1700+24	256.643762	23.971820	45.151698	32.990711	404		SyXB
EXO 1722-363	261.296681	-36.284621	351.495256	-0.354515	~414	9.74	HMXB			aka IGR J17252–3616, heavily absorbed, eclipsing
GX 1+4	263.008955	-24.745600	1.937022	4.794969	170	1161	SyXB		P	Pspin evolving rapidly
2XMM J174016.0-290337	265.067079	-29.060569	359.278793	0.929892	626		SyXB			a. k.a. AX_J1740.2-2903
GRO J1744-28	266.139419	-28.744480	0.042075	0.298489	0.47	11.8	LMXB		T	"Bursting Pulsar"
GRO J1750-27	267.291434	-26.639700	2.370662	0.518408	4.45	29.82	BeXRB?		P	aka AX J1749.1-2639
IGR J17544-2619	268.605299	-26.331274	3.235980	-0.335557		4.93	SFXT?	C	T
SAX J1802.7-2017	270.665728	-20.286816	9.417461	1.044121	139.6	4.57	SG		P	aka IGR J18027-2016
1RXS J180431.1-273932	271.130284	-27.659214	3.202710	-2.947774	494		SyXB
SAX J1808.4-3658	272.114166	-36.979379	355.384418	-8.148034	0.0025	0.837	LMXB			aka V* V4580 Sgr, disk accretor(?)
Swift J1816.7-1613	274.176846	-16.222949	14.587018	0.092428	142.9	151?	BeXRB?		T	ATel 6253 ATel 1457
IGR J18179-1621	274.467048	-16.359400	14.599162	-0.217510	11.82			C?	T	ATel 3947 ATel 3949
AX J1820.5-1434	275.122921	-14.571809	16.473200	0.070620	152
3A 1822-371	276.445028	-37.105158	356.850238	-11.290768	0.59	0.23	LMXB
Sct X-1	278.857602	-7.614004	24.336027	0.065699	112	111	SyXB
GS 1843+00	281.403474	0.863160	33.036370	1.689359					T
2S 1845-024	282.075590	-2.419729	30.421052	-0.406023	94.8	242.2	BeXRB?		T	aka GS 1843-02
XTE J1855-026	283.876680	-2.604678	31.076348	-2.092060	361	6.1	SG
XTE J1858+034	284.678379	3.439739	36.822153	-0.048088		221			T
XTE J1859+083	284.778177	8.246352	41.144826	2.058031	9.8				T	ATel 7037
4U 1901+03	285.903524	3.190426	37.159966	-1.249760					T
XTE J1906+090	286.197769	9.044912	42.497189	1.174872	89.2		BeXRB?
4U 1907+09	287.408533	9.829777	43.743566	0.475292	441	8.37	SG	C	P
4U 1909+07	287.700872	7.597657	41.896991	-0.811637	604	4.4	SG		P
IGR J19140+0951	288.517606	9.882865	44.296348	-0.468771		13.55	HMXB		?
IGR J19149+1036	288.728311	10.612245	45.038573	-0.313490		22.25	SG	C	P	very close to GRS1915
IGR J19294+1816	292.482927	18.310607	53.540075	0.115022	12.5	116?	BeXRB?		T
XTE J1946+274	296.413975	27.365400	63.207144	1.395565	15.8	169.2	BeXRB	C	T
KS 1947+300	297.397839	30.208809	66.098966	2.083585	18.8	40.4	BeXRB	C	T
3A 1954+319	298.926399	32.096931	68.391941	1.926894	1.91e4		SyXB
EXO 2030+375	308.063627	37.637433	77.151841	-1.241801	41.8	46.03	BeXRB		T	regular outbursts
GRO J2058+42	314.698059	41.776980	83.569877	-2.655492					T
SAX J2103.5+4545	315.898770	45.751533	87.130252	-0.684802	359	12.7	BeXRB		T
IGR J21343+4738	323.584869	47.633380	92.171608	-3.117683	320.35	20.85	BeXRB		P?	Varying levels of activity
Cep X-4	324.877853	56.986219	99.012209	3.312526	66.32	20.85	BeXRB	C	T
4U 2206+54	331.984289	54.518433	100.603243	-1.105922	5560	19.25?	SG		P	magnetar?
SAX J2239.3+6116	339.836831	61.274053	107.734431	2.362332	1247	262?	BeXRB		T
IGR J22534+6243	343.479672	62.726882	109.923864	2.861557	46.7		BeXRB?		P?

Location in the Galaxy

The figure below displays the position of accreting X-ray pulsars in the Galaxy as far as known at this moment. Click on the figure for a larger version. Labels indicate the ordinal number in the first column of the table. Uncertainties in the distances are not indicated. Empty symbols represent sources for which there is no distance info in the literature; they have been artificially set to a distance of 7.6 kpc. HEASARC source class identifiers are also given. The spiral arms are from Vallée et al. (2008). Figure and data provided by Arash Bodaghee, SSL, UC Berkeley.

#	Source	Class	Dist. [kpc]		#	Source	Class	Dist. [kpc]
1	GRO_J1744-28	1490	8.5		33	3A_0656-072	1316	3.9
2	GX_1+4	1410	4.5		34	3A_0726-260	1310	6.1
3	GRO_J1750-27	1316	?		35	RX_J0812.4-3114	1316	8.8
4	1RXS_J180431.1-273932	1410	?		36	Ginga_0834-430	1316	4
5	AX_J1820.5-1434	1316	8.2		37	Vela_X-1	1213	1.4
6	XTE_J1855-026	1213	10		38	LMC_X-4	1210	55
7	Sct_X-1	1116	7		39	GRO_J1008-57	1316	5
8	Ginga_1843+009	1316	12.5		40	4U_1036-56	1316	5
9	4U_1901+03	1366	?		41	Cen_X-3	1263	10
10	4U_1909+07	1210	7		42	1A_1118-615	1366	5
11	XTE_J1906+090	1316	10		43	1E_1145.1-6141	1210	8.5
12	H_1907+097	1216	5		44	H_1145-619	1316	3.1
13	4U_1700+24	1400	0.42		45	GX_301-2	1211	4.1
14	IGR_J19294+1816	1316	?		46	SMC_X-1	1213	60
15	Her_X-1	1413	6.56		47	3A_1239-599	1110	?
16	XTE_J1946+274	1316	9.5		48	RX_J0101.8-7223	1310	60
17	KS_1947+300	1316	9.5		49	GX_304-1	1316	2.4
18	3A_1954+319	1416	1.7		50	SAX_J1324.4-6200	1310	10
19	EXO_2030+375	1366	7.1		51	H_1417-624	1316	6
20	GRO_J2058+42	1316	9.0		52	SAX_J1452.8-5949	1010	9
21	SAX_J2103.5+4545	1366	6.8		53	4U_1626-67	1410	9.0
22	Cep_X-4	1316	3.8		54	H_1538-522	1213	6.4
23	3A_2206+543	1260	2.6		55	SWIFT_J1626.6-5156	1366	?
24	3A_0114+650	1213	4.5		56	AX J1700.1-4157	9999	?
25	H_0115+634	1386	8		57	OAO_1657-415	1213	7.1
26	IGR_J01583+6713	1316	4		58	IGR_J16358-4726	1110	7
27	RX_J0146.9+6121	1310	2.3		59	IGR_J16393-4643	1210	10.6
28	V_0332+53	1366	7.5		60	IGR_J16194-2810	1400	3.7
29	RX_J0440.9+4431	1310	3.3		61	SAX_J1808.4-3658	1416	3.6
30	X_Per	1310	0.7		62	3A_1822-371	1419	2.5
31	1A_0535+262	1366	2		63	AX_J1740.2-2903	1410	?
32	SAX_J0635.2+0533	1310	5

Gaia Distances

NOTE: The distances here are for the Gaia source that is closest to the SIMBAD position for each object. This means that for objects with poorly-determined positions or no identified optical counterpart, the distance is INCREDIBLY SUSPECT. Until someone has time to go through source-by-source and clean this up, you need to check carefully whether the Gaia source ID listed here actually corresponds to the object you are looking at. The parallaxes are converted to distance by Bailer-Jones et al. (see this paper and this webpage). Again, these should be taken with a hefty grain of salt and are dependent on the priors selected by Bailer-Jones et al.

Source	Gaia source ID	Gaia distance
RX J0101.8-7223	4687492917085083648	12.3 (+2.0, -1.7)
3A 0114+650	524924310153249920	6.6 (+1.6, -1.2)
4U 0115+634	524677469790488960	7.2 (+1.5, -1.1)
RX J0146.9+6121	511220031584305536	2.50 (+0.22, -0.19)
IGR J01583+6713	518990967445248256	7.4 (+1.1, -0.9)
Swift J0243.6+6124	465628193526364416	6.9 (+1.6, -1.2)
V 0332+53	444752973131169664	5.1 (+1.1, -0.8)
X Per	168450545792009600	0.79 +/- 0.04
RX J0440.9+4431	252878401557369088	3.2 (+0.7, -0.5)
1A 0535+26	3441207615229815040	2.13 (+0.26, -0.21)
SAX J0635.2+0533	3131755943105291136	1.6 (+2.2, -0.8)
MXB 0656-07	3052677318793446016	5.1 (+1.4, -1.0)
3A 0726-260	5613494119544761088	9.5 (+3.1, -2.2)
RX J0812.4-3114	5548261400354128768	6.8 (+1.2, -1.0)
GS 0834-430	5523448270462666880	5.5 (+2.5, -1.7)
Vela X-1	5620657678322625920	2.42 (+0.19, -0.17)
4U 1036-56	5352018121173519488	5.0 (+1.1, -0.8)
1A 1118-616	5336957010898124160	2.93 (+0.26, -0.22)
Cen X-3	5337498593446516480	6.4 (+1.4, -1.1)
1E1145.1-6141	5334851450481641088	9.1 (+2.2, -1.6)
4U 1145-619	5334823859608495104	2.23 (+0.20, -0.17)
GX 301-2	6054569565614460800	3.5 (+0.6, -0.5)
3A 1239-599	6056606788861734912	2.9 (+2.4, -1.3)
GX 304-1	5863533199843070208	2.01 (+0.15, -0.13)
SAX J1324.4-6200	5868517973240268544	3.5 (+2.6, -1.7)
2S 1417-624	5854175187681966464	3.8 (+2.8, -1.8)
SAX J1452.8-5949	5878224015202026240	3.0 (+2.6, -1.5)
4U 1538-522	5886085557746480000	6.6 (+2.2, -1.5)
2S 1553-542	5884711610550541440	3.5 (+2.6, -1.5)
IGR J16194-2810	6039227323926220544	2.3 (+0.8, -0.5)
Swift J1626.6-5156	5933976985766949376	9.8 (+3.2, -2.4)
IGR J16318-4848	5940777877435137024	5.2 (+2.8, -1.9)
IGR J16320-4751	5941216101526297856	1.3 (+0.6, -0.4)
4U 1626-67	5809528276749789312	3.5 (+2.3, -1.3)
IGR J16393-4643	5942638074996489088	4.0 (+2.7, -1.7)
IGR J16465-4507	5943246345430928512	2.7 (+0.5, -0.4)
Her X-1	1338822021487330304	5.0 (+0.8, -0.6)
AX J1700.1-4157	5966358530819164544	3.4 (+2.6, -1.5)
OAO 1657-415	5966391894137386240	2.2 (+0.7, -0.5)
4U 1700-37	5976382915813535232	1.75 (+0.24, -0.19)
4U 1700+24	4571810378118789760	0.536 +/- 0.010
EXO 1722-363	5974546387756541696	4.0 (+2.3, -1.3)
GX 1+4	4110236324513030656	7.6 (+4.3, -2.8)
2XMM J174016.0-290337	4060143669944331648	1.4 (+1.6, -0.5)
GRO J1744-28	4057539171718068224	1.3 (+1.2, -0.5)
IGR J17544-2619	4063908810076415872	2.7 (+0.5, -0.4)
SAX J1802.7-2017	4070968778552176768	1.5 (+2.8, -0.7)
SAX J1808.4-3658	4037867740522970240	5.1 (+4.3, -2.6)
Swift J1816.7-1613	4097679145798118528	1.4 (+2.5, -0.7)
3A 1822-371	6728016172687965568	6.1 (+2.7, -1.6)
GS 1843+00	4278536022438800640	2.3 (+2.0, -1.0)
XTE J1855-026	4255891924062617088	8.1 (+2.6, -1.8)
XTE J1858+034	4280844623194795136	1.55 (+0.28, -0.21)
XTE J1859+083	4310118600596712832	2.7 (+2.4, -1.5)
4U 1901+03	4268774665587135488	2.2 (+2.2, -1.3)
XTE J1906+090	4310649149314811776	2.8 (+2.4, -1.4)
4U 1907+09	4309225217336729088	4.4 (+2.1, -1.3)
4U 1909+07	4306419980916246656	2.6 (+2.3, -1.4)
IGR J19140+0951	4309253392325650176	2.8 (+2.4, -1.4)
IGR J19149+1036	4309736146639732352	3.0 (+2.5, -1.6)
IGR J19294+1816	4323316622779495680	2.9 (+2.5, -1.5)
XTE J1946+274	2028089540103670144	12.6 (+3.9, -2.9)
KS 1947+300	2031939548802102656	15.2 (+3.7, -2.8)
3A 1954+319	2034031438383765760	3.3 (+1.0, -0.7)
EXO 2030+375	2063791369815322752	3.6 (+1.4, -0.9)
GRO J2058+42	2065653598916388352	8.0 (+1.2, -1.0)
SAX J2103.5+4545	2162805896614571904	6.4 (+0.9, -0.7)
IGR J21343+4738	1978365123143522176	7.8 (+1.4, -1.1)
Cep X-4	2178178409188167296	10.2 (+2.2, -1.6)
4U 2206+54	2005653524280214400	3.3 +/- 0.4
SAX J2239.3+6116	2201091578667140352	8.0 (+1.4, -1.1)
IGR J22534+6243	2207277877757956352	8.1 (+2.3, -1.6)

Updated list of accreting X-ray pulsars

IGR J00370+6122 | |-

2S 0114+650 | |-

4U 0115+63 | |-

RX J0146.9+6121 | |-

Correlation between luminosity and CRSF energy

In recent years more and more sources have been observed at different luminosities, allowing us to find correlation between the luminosity and the cyclotron line energy. A summary of the current state of the observations can be found on this page: CRSF energy as function of luminosity

Assignments

Our collaboration has assigned one or two sources to each member to take care of, i.e., to put together the most important information and keep the page up to date in case new data are available or new papers are published. The list can only be accessed if logged in.