McGill Online Magnetar Catalog

Main Table

This catalog contains the current information available on 30 magnetars: 16 SGRs (12 confirmed, 4 candidates), and 14 AXPs (12 confirmed, 2 candidate). This site is maintained by the McGill Pulsar Group, and is a continual work-in-progress. You are free to use the information in this catalog in publications, however, we ask that you please cite the published paper (Olausen & Kaspi, 2014) and refer to the url (http://www.physics.mcgill.ca/~pulsar/magnetar/main.html) in either the acknowledgements or a footnote.

The data reflect the magnetars' persistent characteristics, rather than those observed during flare/burst periods. However, if persistent characteristics are not available, the data may relfect a flare/burst.
This table is available in ASCII and CSV format.
In cases where the property varies either with phase or time, or there exists multiple recently measured values, the entries are marked with an asterisk (*) and compiled separately in Table 2.
Observations of optical/IR counterparts are listed in Table 3.
Hard X-ray observations are listed in Table 4.
Updated versions of the first seven tables from Olausen & Kaspi (2014) are also available: 1, 2, 3, 4, 5, 6, 7.

Name	P	dP/dt	B_surf	dE/dt	Tau_c	N_H	PL Index	BB Temp	Unabs F_x{a}	Distance	L_x{b}	Assoc?	Opt/IR?	Bands?{c}	Activity?	RA, Dec
	(s)	(10⁻¹¹ s/s)	(10¹⁴ G)	(10³³ erg/s)	(kyr)	(10²² cm⁻²)		(keV)	(10⁻¹² erg/s/cm²)	(kpc)	(10³³ erg/s)					(J2000)
CXOU J010043.1−721134	8.020392(9) [mgr+05]	1.88(8) [mgr+05]	3.9	1.4	6.8	0.063^+0.020_−0.016* [tem08]	...	0.30(2) + 0.68^+0.09_−0.07* [tem08]	0.14* [tem08]	62.4(1.6) [hgd12b]	65	SMC [lfmp02]	maybe	X O?	...	01^h00^m43.14^s, −72°11′33.8″ [lfmp02]
4U 0142+61	8.68869249(5) [dk14]	0.2022(4) [dk14]	1.3	0.12	68	1.00(1)* [rni+07]	3.88(1)* [rni+07]	0.410^+0.004_−0.002* [rni+07]	67.9* [rni+07]	3.6(4)* [dv06b]	105	...	yes	H X O I	bursts, glitches	01^h46^m22.407^s, +61°45′03.19″ [hvk04]
SGR 0418+5729	9.07838822(5) [rip+13]	0.0004(1) [rip+13]	0.061	0.00021	36000	0.115(6) [rip+13]	...	0.32(5) [rip+13]	0.0020^+0.0014_−0.0010 [0.012(1) (0.5—10 keV)] [rip+13]	~2 [vck+10]	0.00096	...	no	X	bursts, transient magnetar	04^h18^m33.867^s, +57°32′22.91″ [vck+10]
SGR 0501+4516	5.7620695(1) [cpr+14]	0.594(2) [cpr+14]	1.9	1.2	15	0.88(1)* [cpr+14]	3.84(6)* [cpr+14]	0.50(2)* [cpr+14]	1.7 [19(1) (0.5—10 keV)]* [cpr+14]	~2 [lkb+11]	0.81	SNR HB 9? [GCN8149]	yes	H X O	bursts	05^h01^m06.76^s, +45°16′33.92″ [gwk+10]
SGR 0526−66	8.0544(2)* [tem+09]	3.8(1)* [tem+09]	5.6	2.9	3.4	0.604^+0.058_−0.059* [phs+12]	2.50^+0.11_−0.12* [phs+12]	0.44(2)* [phs+12]	0.55 [1.58^+0.13_−0.20 (0.5—10 keV)]* [phs+12]	53.6(1.2) [hgd12a]	189	LMC, SNR N49?, SL 463 (young star cluster) [khg+04]	no	X	bursts, giant flare	05^h26^m00.89^s, −66°04′36.3″ [kkm+03]
1E 1048.1−5937	6.457875(3) [dkg09]	2.25* [dkg09]	3.9	3.3	4.5	0.97(1)* [tgd+08]	3.14(11)* [tgd+08]	0.56(1)* [tgd+08]	5.1(1)* [tgd+08]	9.0(1.7)* [dv06b]	49	GSH 288.3−0.5−28? (stellar wind bubble) [gmo+05]	yes	H X O	bursts, glitches	10^h50^m07.14^s, −59°53′21.4″ [wc02]
1E 1547.0−5408	2.0721255(1)* [dksg12]	4.77* [dksg12]	3.2	210	0.69	3.2(2)* [bis+11]	4.0(2)* [bis+11]	0.43(3)* [bis+11]	0.54 [0.37^+0.01_−0.03 (0.5—10 keV)]* [bis+11]	4.5(5)* [tve+10]	1.3	SNR G327.24−0.13 [gg07]	maybe	H X O? R	bursts, transient magnetar	15^h50^m54.124^s, −54°18′24.11″ [dcrh12]
PSR J1622−4950	4.3261(1) [lbb+10]	1.7(1)* [lbb+10]	2.7	8.3	4.0	5.4^+1.6_−1.4 [ags+12]	...	0.5(1) [ags+12]	0.045^+0.063_−0.028 [0.11^+0.09_−0.04 (0.3—10 keV)] [ags+12]	~9 [lbb+10]	0.44	SNR G333.9+0.0 [ags+12]	no	X R	...	16^h22^m44.89^s, −49°50′52.7″ [ags+12]
SGR 1627−41	2.594578(6) [etm+09]	1.9(4) [ebp+09]	2.2	43	2.2	10(2)* [eiz+08]	2.9(8)* [akt+12]	...	0.25^+0.17_−0.10* [akt+12]	11.0(3)* [ccdd99]	3.6	CTB 33 (radio complex), MC −71, SNR G337.0−0.1 [ccdd99]	no	X	bursts, transient magnetar	16^h35^m51.844^s, −47°35′23.31″ [wpk+04]
CXOU J164710.2−455216	10.610644(17)* [akac13]	<0.04* [akac13]	<0.66	<0.013	>420	2.39(5) [akac13]	3.86(22) [akac13]	0.59(6) [akac13]	0.25(4) [akac13]	3.9(7)* [kd07]	0.45	Westerlund 1 (massive star cluster) [mcc+06]	no	X	bursts, transient magnetar	16^h47^m10.20^s, −45°52′16.90″ [mcc+06]
1RXS J170849.0−400910	11.00502461(17) [dk14]	1.9455(13) [dk14]	4.7	0.58	9.0	1.36(4)* [rio+07]	2.792^+0.008_−0.012* [rio+07]	0.456^+0.007_−0.004* [rio+07]	24.3 [87.0^+0.4_−0.2 (0.5—10 keV)]* [rio+07]	3.8(5) [dv06b]	42	...	maybe	H X O?	glitches	17^h08^m46.87^s, −40°08′52.44″ [icp+03]
CXOU J171405.7−381031	3.825352(4)* [sbni10]	6.40(5)* [sbni10]	5.0	45	0.95	3.95^+0.15_−0.14* [sbni10]	3.45^+0.09_−0.08* [sbni10]	...	2.68(9)* [sbni10]	~13.2* [tl12]	56	SNR CTB 37B [hg10a]	no	X	...	17^h14^m05.74^s, −38°10′30.9″ [hg10b]

Name	P	dP/dt	B_surf	dE/dt	Tau_c	N_H	PL Index	BB Temp	Unabs F_x{a}	Distance	L_x{b}	Assoc?	Opt/IR?	Bands?{c}	Activity?	RA, Dec
	(s)	(10⁻¹¹ s/s)	(10¹⁴ G)	(10³³ erg/s)	(kyr)	(10²² cm⁻²)		(keV)	(10⁻¹² erg/s/cm²)	(kpc)	(10³³ erg/s)					(J2000)
SGR J1745−2900	3.76363824(13)* [kab+14]	1.385(15)* [kab+14]	2.3	10	4.3	...	...	...	<0.013 [mgz+13]	8.3(3) [bdd+14]	<0.11	Galactic Center [mgz+13]	no	H X R	bursts, transient magnetar	17^h45^m40.164^s, −29°00′29.82″ [sj13]
SGR 1806−20	7.54773(2)* [wkf+07]	49.5* [wkf+07]	20	45	0.24	6.9(4)* [emt+07b]	1.6(1)* [emt+07b]	0.55(7)* [emt+07b]	18(1)* [emt+07b]	8.7^+1.8_−1.5* [bcfc08]	163	W31 (giant HII complex), massive star cluster, MC 13A (molecular cloud) [ce04]	yes	H X O	bursts, giant flare	18^h08^m39.337^s, −20°24′39.85″ [icm+05]
XTE J1810−197	5.5403537(2) [ccr+07]	0.777(3)* [ccr+07]	2.1	1.8	11	0.63(5)* [ghbb04]	...	0.18(2)* [ghbb04]	0.029 [4.6 (0.5—10 keV)]* [ghbb04]	3.5^+0.5_−0.4* [mcr+08]	0.043	...	yes	X O R	bursts, transient magnetar	18^h09^m51.087^s, −19°43′51.93″ [hcb+07]
Swift J1818.0−1607	1.363490(3) [ATel13553]	9(1) [erb+20]	3.5	1400	0.24	...	...	...	...	~4.8 [ATel13553]	...	...	no	G R	bursts	18^h18^m03.7^s, −16°07′31.8″ [GCN27384]
Swift J1822.3−1606	8.43772106(6)* [skc14]	0.0021(2)* [skc14]	0.14	0.0014	6300	0.453(8)* [snl+12]	...	0.12(2)* [snl+12]	<0.0013 [0.09^+0.20_−0.09 (0.1—2.4 keV)]* [snl+12]	1.6(3) [snl+12]	<0.00040	M17 (HII region) [snl+12]	no	X	bursts, transient magnetar	18^h22^m18.00^s, −16°04′26.8″ [ATel3493]
SGR 1833−0832	7.5654084(4) [eit+11]	0.35(3) [eit+11]	1.6	0.32	34	...	...	...	<0.2 [eit+11]	...	...	...	no	X	bursts	18^h33^m44.37^s, −08°31′07.5″ [gcl+10]
Swift J1834.9−0846	2.4823018(1) [kkp+12]	0.796(12) [kkp+12]	1.4	21	4.9	...	...	...	<0.004 [ykk+12]	4.2(3) [lt08a]	<0.0084	SNR W41 [kkp+12]	no	X	bursts, transient magnetar	18^h34^m52.118^s, −08°45′56.02″ [kkp+12]
1E 1841−045	11.788978(1) [dk14]	4.092(15) [dk14]	7.0	0.99	4.6	2.2(1) [ks10]	1.9(2) [ks10]	0.45(3) [ks10]	21.3 [43⁺⁹₋₁₂ (0.5—10 keV)] [ks10]	8.5^+1.3_−1.0 [tl08]	184	SNR Kes 73 [vg97]	maybe	H X O?	bursts, glitches	18^h41^m19.343^s, −04°56′11.16″ [wpk+04]
3XMM J185246.6+003317	11.55871346(6) [rvi+14]	<0.014 [rvi+14]	<0.41	<0.0036	>1300	...	...	...	<0.001 [<0.4 (bolometric)] [rvi+14]	~7.1 [zcl+14]	<0.0060	...	no	X	transient magnetar	18^h52^m46.67^s, +00°33′17.8″ [zcl+14]
SGR 1900+14	5.19987(7)* [met+06b]	9.2(4)* [met+06b]	7.0	26	0.90	2.12(8)* [met+06b]	1.9(1)* [met+06b]	0.47(2)* [met+06b]	4.8(2)* [met+06b]	12.5(1.7)* [dfk+09]	90	massive star cluster [vhl+00]	maybe	H X O?	bursts, giant flare	19^h07^m14.33^s, +09°19′20.1″ [fkb99]
SGR 1935+2154	3.2450650(1) [ier+16]	1.43(1) [ier+16]	2.2	17	3.6	1.6(2) [ier+16]	1.8(5) [ier+16]	0.47(2) [ier+16]	...	...	...	SNR G57.2+0.8 [GCN16533]	no	H X R	bursts	19^h34^m55.598^s, +21°53′47.79″ [ier+16]
1E 2259+586	6.9790427250(15) [dk14]	0.0483695(63) [dk14]	0.59	0.056	230	1.012(7)* [zkd+08]	3.75(4)* [zkd+08]	0.37(1)* [zkd+08]	14.1(3)* [zkd+08]	3.2(2)* [kf12]	17	SNR CTB 109 [fg81]	yes	H X O I	bursts, glitches, anti-glitch	23^h01^m08.295^s, +58°52′44.45″ [htv+01]

Name	P	dP/dt	B_surf	dE/dt	Tau_c	N_H	PL Index	BB Temp	Unabs F_x{a}	Distance	L_x{b}	Assoc?	Opt/IR?	Bands?{c}	Activity?	RA, Dec
	(s)	(10⁻¹¹ s/s)	(10¹⁴ G)	(10³³ erg/s)	(kyr)	(10²² cm⁻²)		(keV)	(10⁻¹² erg/s/cm²)	(kpc)	(10³³ erg/s)					(J2000)
SGR 0755−2933^†	...	...	...	...	...	...	...	...	...	...	...	...	no	X	bursts, transient magnetar	07^h55^m42.48^s, −29°33′49.2″ [ATel8831]
SGR 1801−23^†	...	...	...	...	...	...	...	...	...	...	...	...	no	...	bursts	18^h00^m59^s, −22°56′48″ [cfg+00]
SGR 1808−20^†	...	...	...	...	...	...	...	...	...	...	...	...	no	...	bursts	18^h08^m11.2^s, −20°38′49″ [GCN2351]
AX J1818.8−1559^†{d}	...	...	...	...	...	3.6(5)* [met+12]	1.17(17)* [met+12]	...	1.68^+0.16_−0.15* [met+12]	...	...	...	no	X	bursts	18^h18^m51.38^s, −15°59′22.62″ [met+12]
AX J1845.0−0258^†{d}	6.97127(28) [tkk+98]	...	...	...	...	7.8^+2.3_−1.8* [tkgg06]	1.0^+0.5_−0.3* [tkgg06]	...	0.33^+0.07_−0.08* [tkgg06]	~8.5* [tkk+98]	2.9	SNR G29.6+0.1 [ggv99]	no	X	transient magnetar	18^h44^m54.68^s, −02°56′53.1″ [tkgg06]
SGR 2013+34^†	...	...	...	...	...	...	...	...	...	~8.8 [sbb+11]	...	W58 (giant HII complex) [sbb+11]	no	...	bursts	20^h13^m56.9^s, +34°19′48″ [sbb+11]

Name	P	dP/dt	B_surf	dE/dt	Tau_c	N_H	PL Index	BB Temp	Unabs F_x{a}	Distance	L_x{b}	Assoc?	Opt/IR?	Bands?{c}	Activity?	RA, Dec
	(s)	(10⁻¹¹ s/s)	(10¹⁴ G)	(10³³ erg/s)	(kyr)	(10²² cm⁻²)		(keV)	(10⁻¹² erg/s/cm²)	(kpc)	(10³³ erg/s)					(J2000)
PSR J1846−0258^‡	0.32657128834(4) [lnk+11]	0.7107450(2) [lnk+11]	0.49	8100	0.73	4.0(1)* [nsgh08]	1.1(1)* [lnk+11]	...	4.3(7) [5.2(7) (0.5—10 keV)]* [lnk+11]	6.0^+1.5_−0.9* [lt08b]	19	SNR Kes 75 [gvbt00]	no	H X	bursts, glitches	18^h46^m24.94^s, −02°58′30.1″ [hcg03]

Footnotes:

*: Indicates varying property, or multiple recently measured values. See Table 2 for alternative values.
^†: This candidate is unconfirmed.
^‡: This source is often classified as a young, rotation-powered pulsar, but it was seen to undergo a magnetar-like outburst in 2006 (see Gavriil et al., 2008).
{a}: F_x is given for the 2–10 keV range. If only absorbed flux was found in the literature, then we used HEASARC's WebPIMMS to estimate the unabsorbed flux. Likewise, WebPIMMS was used if flux was given for a range other than 2–10 keV (we also quote the given fluxes in brackets).
{b}: L_x is in the 2–10 keV range and assumes the distances given in the table.
{c}: Wavebands in which persistent emission has been detected. H = soft gamma rays/hard X-rays (>10 keV); X = X-rays (1–10 keV); O = optical/near-infrared; I = mid to far infrared; R = radio.
{d}: AX J1818.8−1559 and AX J1845−0258 are unconfirmed candidate AXPs. Persistent X-ray sources have been detected, but are not confirmed to be the counterparts of the previously observed bursts or high-flux state; therefore, spectral and positional parameters must be taken with a grain of salt.

Last modified: November 17, 2020

To report additions, corrections, or omissions, please contact Alice Curtin at magnetsar(at)physics.mcgill.ca and cc Alice Curtin at alice.curtin(at)mail.mcgill.ca

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