2003A&A...404.1023B

Query : 2003A&A...404.1023B

2003A&A...404.1023B - Astronomy and Astrophysics, volume 404, 1023-1032 (2003/6-4)

A puzzling paucity of double peaked X-ray pulsars.

BULIK T., GONDEK-ROSINSKA D., SANTANGELO A., MIHARA T., FINGER M. and CEMELJIC M.

Abstract (from CDS):

Accretion powered pulsars exhibit a variety of lightcurves. In this paper we propose to classify the observed lightcurves as single or double pulsed. We analyze the lightcurves of 89 accretion powered pulsars and assign them to these classes. We present three datasets: first in which the classification can be easily done, second for which the classification is more difficult and not certain, and third for which we were unable to classify the pulsar because of a lack of published data. We analyze a simple model in which the angles between the magnetic and rotation axis β, and between the rotation axis and the line of sight θ are random, and show that it is inconsistent with the data. We also present a model in which the angle between the magnetic axis and the rotation axis is restricted and compare it with the data. This leads to an upper limit on the angle β<50°. We conclude that there must be a mechanism that leads to alignment of the magnetic and spin axis in X-ray pulsars.

Abstract Copyright: ∼

Journal keyword(s): X-rays: star - stars: neutron

CDS comments: Table 3 : 3U 1239-59 = 3A 1239-59 in Simbad.

Simbad objects: 85

Full paper

View the references in ADS

Number of rows : 85

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2023	#notes
1	RX J0049.0-7250	HXB	00 49 03.35	-72 50 52.4		17.01	16.898		16.686	B3:V	51	0
2	RX J0049.2-7311	HXB	00 49 13.6255324536	-73 11 37.869710892		16.52	16.555		16.320	B1e	46	1
3	LIN 139	HXB	00 49 42.0078068952	-73 23 14.676382752	14.09	15.00	14.98		14.70	O9.5-B0.5III-V	72	0
4	V* DZ Tuc	HXB	00 50 44.7079466208	-73 16 05.430164196	14.46	15.37	15.396		15.225	B0-B0.5V	75	0
5	[MA93] 413	HXB	00 50 56.9992401408	-72 13 34.582439136		14.97	15.05			B0.5III-V	59	0
6	AzV 102	HXB	00 51 53.1358981896	-72 31 48.721904580	13.66	14.79	14.38		14.40	B0-5(II)	71	0
7	LIN 203	HXB	00 52 13.9956976512	-73 19 18.812945496		14.66	14.67		14.534	O9.5IIIe/B0Ve	86	0
8	LIN 221	HXB	00 52 55.2656173752	-71 58 06.287817144	14.37	15.47	15.53		15.34	B0-B1III-V	48	0
9	X SMC X-2	HXB	00 54 33.43	-73 41 01.3	13.77	16.40	16.38		14.67	O9.5III-V	126	0
10	[MA93] 810	HXB	00 54 56.1754603176	-72 26 47.859057060	14.17	15.24	15.28		15.327	O9V	72	0
11	[MA93] 1036	HXB	00 57 49.5745148088	-72 02 35.873596896		15.52	15.64			B0-B2III-V	54	0
12	RX J0059.2-7138	HXB	00 59 12.7444006824	-71 38 44.962383408		14.07	14.01	14.36		B1-B1.5II-III	84	0
13	[MA93] 1367	HXB	01 03 13.9173060552	-72 09 14.258500452		14.70	14.79	15.0		B0.5IV-V	92	2
14	RX J0105.1-7211	HXB	01 05 09.941	-72 11 47.00		15.62	15.63	18.3		B1-B2III-V	52	1
15	RX J0111.2-7317	HXB	01 11 08.5770101712	-73 16 46.308129384	14.40	15.42	15.52		15.29	B0.5-1Ve	71	0
16	SK 160	HXB	01 17 05.1457288392	-73 26 36.014808156	12.23	13.00	13.15		13.17	O9.7Ia+	847	0
17	[MA93] 1845	HXB	01 17 40.1630558064	-73 30 50.523690888	13.30	14.14	14.18		14.09	B1-3(II)e	55	0
18	V* V662 Cas	HXB	01 18 02.6976641952	+65 17 29.829200388	12.27	11.99	11.14	10.33	9.58	B1Iae	264	0
19	V* V635 Cas	HXB	01 18 31.9704955824	+63 44 33.072603144	17.05	16.64	15.19	14.34	13.22	B0.2Ve	728	0
20	PSR J0146+6145	Psr	01 46 22.21	+61 45 03.8		28.100	25.620			~	561	0
21	EM* GGA 104	HXB	01 47 00.2124077208	+61 21 23.663788056	11.76	12.09	11.366	11.00	10.52	B1IIIe	182	0
22	V* BQ Cam	HXB	03 34 59.9116110096	+53 10 23.296879776		17.16	15.42	14.26	13.04	O8.5Ve	461	1
23	V* X Per	HXB	03 55 23.0777456088	+31 02 45.039836148	6.090	6.840	6.720			O9.5III	962	0
24	LS V +44 17	HXB	04 40 59.3296237272	+44 31 49.258049376	11.02	11.42	10.73	10.28	9.76	B0.2Ve	127	0
25	RX J0502.9-6626	HXB	05 02 51.7474501824	-66 26 26.907946008		14.12	14.22	14.359		B0Ve	36	0
26	RX J0529.7-6556	HXB	05 29 47.8546718664	-65 56 43.592426736	13.761	14.477	14.594		14.741	B0.5Ve	30	0
27	RX J0531.2-6609	HXB	05 31 13.3008	-66 07 05.006			14.4			B0.7Ve	55	1
28	X LMC X-4	HXB	05 32 49.5556042296	-66 22 13.202721768		13.9	14.0			O8III	659	0
29	RX J0535.6-6651	HXB	05 35 40.9970566152	-66 51 53.547559416		13.7	13.8			B0.5IIIe	283	0
30	HD 245770	HXB	05 38 54.5748918624	+26 18 56.836952784	9.30	9.84	9.39	8.77	8.30	O9/B0III/Ve	963	0
31	RX J0544.1-7100	HXB	05 44 05.2035514728	-71 00 50.782002660	14.598	15.292	15.235		15.220	B0Ve	23	0
32	PSR J0635+0533	Psr	06 35 17.4	+05 33 21		13.81	12.83			B1IIIe-B2Ve	45	0
33	HD 49798	HXB	06 48 04.7001531360	-44 18 58.436036028	6.758	8.017	8.287	8.391	8.543	sdO6	319	0
34	RX J0720.4-3125	N*	07 20 24.961	-31 25 50.21		26.1		27.0		~	299	0
35	V* V441 Pup	HXB	07 28 53.5788273168	-26 06 28.897118208	11.27	12.29	11.83	11.53		O5Ve	76	0
36	V* V572 Pup	HXB	08 12 28.3575205680	-31 14 52.138451400	12.14	13.03	12.74	12.44		B0.2IVe	64	0
37	Ginga 0834-430	HXB	08 35 54.9956514920	-43 11 17.497095048			20.4			B0-2III-Ve	97	0
38	V* GP Vel	HXB	09 02 06.8608812864	-40 33 16.899168060	6.85	7.37	6.87	6.31	6.05	B0.5Ia	1480	0
39	GRO J1008-571	HXB	10 09 46.9642314696	-58 17 35.603851848				14.63		B0e	224	0
40	THA 35-II-42	WR*	10 25 56.5024585224	-57 48 43.519215708		14.168	12.661	12.102		WN5ha/O3+O3Vz((f*))	90	0
41	LS 1698	HXB	10 37 35.3145142200	-56 47 55.869594756		12.00	11.48	11.38		B0III/V:e	103	0
42	2E 2336	HXB	10 50 08.93	-59 53 19.9						Be	398	0
43	WRAY 15-793	HXB	11 20 57.1736884968	-61 55 00.166078020	12.81	13.06	12.12			O9.5III/Ve	201	0
44	V* V779 Cen	HXB	11 21 15.0920532528	-60 37 25.630264596		14.4	12.27			O9III/Veq	1073	0
45	1E 1145.1-6141	HXB	11 47 28.5598257552	-61 57 13.426997544		13.08				B2Iae	143	0
46	HD 102567	Be*	11 48 00.0214464120	-62 12 24.902384760	8.24	9.06	9.00	9.62		O/Bne	312	0
47	V* BP Cru	HXB	12 26 37.5605188992	-62 46 13.261044684		12.70	10.66			B1.5Iaeq	670	0
48	1H 1238-599	HXB	12 42 01.7	-60 12 06			13.80			~	27	0
49	V* V850 Cen	HXB	13 01 17.0968941216	-61 36 06.637549788		15.6	14.40			B2Vne	322	0
50	SAX J1324.4-6200	HXB	13 24 26.70	-62 01 19.5						Be?	20	0
51	4U 1416-62	HXB	14 21 12.8	-62 41 54		17.9	17.2			B1Ve	146	0
52	SAX J1452.8-5949	HXB	14 52 52.70	-59 49 08.1						Be?	18	0
53	V* QV Nor	HXB	15 42 23.3633146128	-52 23 09.577395960		16.3	14.5			B0.2Ia:e	409	1
54	2S 1553-542	HXB	15 57 49.00	-54 24 54.0						Be	108	0
55	V* KZ TrA	LXB	16 32 16.79	-67 27 39.3	17.40	18.60	18.5			~	571	1
56	V* HZ Her	LXB	16 57 49.8110126616	+35 20 32.486555472	11.90	14.89	13.63	13.88		B3/6ep	2053	0
57	2XMMi J170004.2-415804	HXB	17 00 04.26	-41 58 04.7						Be?	20	0
58	NAME OAO 1657-41	HXB	17 00 48.884	-41 39 21.46						Ofpe/WN9	238	0
59	PSR J1708-4008	Psr	17 08 49.0	-40 09 10						~	288	0
60	2MASS J17251139-3616575	HXB	17 25 11.392	-36 16 57.53			14.30			B0-1Ia	123	2
61	V* V2116 Oph	Sy*	17 32 02.1532435416	-24 44 44.129169096		20.78	18.4			M6IIIe	683	1
62	3FHL J1746.2-2852	LXB	17 44 33.09	-28 44 27.0						~	524	0
63	2XMM J174912.3-272537	HXB	17 49 12.28	-27 25 37.4						B3	31	0
64	GRO J1750-27	HXB	17 49 12.969	-26 38 38.93						Be?	66	1
65	V* V4580 Sgr	LXB	18 08 27.54	-36 58 44.3		16.81	16.51			~	964	0
66	4FGL J1821.1-1422	HXB	18 20 29.5	-14 34 24						O9.5-B0Ve	59	1
67	V* V691 CrA	LXB	18 25 46.8185061768	-37 06 18.529336656	14.30	15.20	15.1			~	427	0
68	X Sct X-1	HXB	18 35 25.8244223112	-07 36 50.416365528						~	78	0
69	RX J1838.4-0301	XB*	18 38 27.02	-03 01 14.4						~	29	0
70	AX J1844.8-0258	HXB	18 44 53	-02 56.0						~	117	0
71	2MASS J18453684+0051474	HXB	18 45 36.8356591776	+00 51 47.437790184			20.6			B0-2IV-Ve	107	0
72	4U 1850-03	HXB	18 48 17.7	-02 25 13						Be?	105	1
73	2MASS J18553040-0236167	HXB	18 55 30.4058947392	-02 36 16.737653700						B0Iaep	92	0
74	XTE J1858+034	HXB	18 58 43	+03 26.3						~	78	0
75	XTE J1906+090	HXB	19 04 47.491	+09 02 41.40						Be?	25	0
76	4U 1907+09	HXB	19 09 37.1382681824	+09 49 55.279554289		19.41	16.35	14.40	12.53	O8.5Iab	333	1
77	XTE J1946+274	HXB	19 45 39.3568693200	+27 21 55.501637040		18.76	16.92	15.62	14.38	B0-1IV-Ve	120	0
78	GRO J2014+34	XB*	19 54	+30.1						~	33	1
79	V* V2306 Cyg	XB*	19 58 14.4693586728	+32 32 42.003103200	15.16	15.94	15.71	15.76		~	64	0
80	V* V2246 Cyg	HXB	20 32 15.2749858128	+37 38 14.843024844		22.16	19.41	17.32	15.18	B0Ve	426	0
81	GRO J2058+42	HXB	20 58 47.5371521256	+41 46 37.180486128		15.97	14.74	14.74	13.35	O9.5-B0IV-Ve	81	0
82	GSC 03588-00834	HXB	21 03 35.7100848936	+45 45 05.568751692		15.34	14.20	13.49	12.75	B0Ve	177	0
83	V* V490 Cep	HXB	21 39 30.6903047304	+56 59 10.421969280		15.2				B1.5Ve	159	1
84	BD+53 2790	HXB	22 07 56.2366802328	+54 31 06.408879888	9.4	10.11	9.84	9.64	9.43	O9.5Vep	203	0
85	2E 4673	HXB	23 01 08.14	+58 52 44.5						~	624	1

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