2005A&A...442...97A

C.D.S. - SIMBAD4 rel 1.7 - 2021.01.27CET11:08:48

2005A&A...442...97A - Astronomy and Astrophysics, volume 442, 97-107 (2005/10-4)

Polarization microvariability of BL Lacertae objects.

ANDRUCHOW I., ROMERO G.E. and CELLONE S.A.

Abstract (from CDS):

We present the results of a systematic observational campaign designed to search for microvariability in the optical polarization of BL Lac objects. We observed a sample formed by 8 X-ray-selected and 10 radio-selected sources, looking for rapid changes in both the degree of linear polarization and the corresponding polarization angle. The whole campaign was carried out during the last three years, and most of the objects were observed on at least two consecutive nights. The statistical properties of both classes of BL Lac objects are compared, and some general conclusions on the nature of the phenomenon are drawn. In general, radio selected sources seem to display higher duty cycles for polarimetric microvariability and, on average, they have a stronger polarization.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - galaxies: BL Lacertae objects: general - polarization

Simbad objects: 19

Full paper

View the reference in ADS

Number of rows : 19

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Sp type	#ref 1850 - 2021	#notes
1	QSO B0118-272	BLL	01 20 31.6632705443	-27 01 24.643168036		15.89	15.56	15.49	~	242	1
2	QSO B0422+004	BLL	04 24 46.8423020674	+00 36 06.327828096	16.15	15.94	16.98		~	329	1
3	QSO B0521-365	BLL	05 22 57.9839686440	-36 27 30.847737786		15.26	14.62	14.48	~	733	2
4	QSO B0537-441	BLL	05 38 50.36155219	-44 05 08.9389165		15.77	16.48	16	~	800	2
5	QSO B0548-322	BLL	05 50 40.5706739558	-32 16 16.488658537		16.07	15.5		~	372	1
6	2MASX J06002215-3853537	G	06 00 22.150	-38 53 53.73		16.12		14.84	~	11	1
7	QSO B0829+047	BLL	08 31 48.8771360822	+04 29 39.086736269		17.10	16.4	14.55	~	424	2
8	9Y-MST J1026-1748	BLL	10 26 58.5790721272	-17 48 58.865064618		18.39	16.60	17.02	~	38	0
9	9Y-MST J1103-2329	BLL	11 03 37.6150843895	-23 29 31.202114088		17.00	16.55	16.61	~	323	2
10	QSO B1144-3755	BLL	11 47 01.37070177	-38 12 11.0234199		19.03	16.2	16.72	~	266	1
11	3C 279	QSO	12 56 11.1664521013	-05 47 21.531840471		18.01	17.75	15.87	~	2744	2
12	9Y-MST J1315-4236	BLL	13 15 03.3899187349	-42 36 49.750831008		18.07	16.6	16.59	~	87	0
13	QSO B1440+122	BLL	14 42 48.276582	+12 00 40.37487		18.34	17.63	15.2	~	140	3
14	QSO J1512-0906	QSO	15 12 50.53292491	-09 05 59.8295878		16.74	16.54		~	1174	1
15	QSO B1514-24	BLL	15 17 41.8135246339	-24 22 19.482167214		15.13	14.00	13.95	~	663	3
16	QSO B1553+113	BLL	15 55 43.0439413597	+11 11 24.365587666	14.91	14.72	14.57	13.99	~	431	1
17	4C 09.57	BLL	17 51 32.81857318	+09 39 00.7284829		17.46	16.78	15.57	~	826	1
18	QSO B2005-489	BLL	20 09 25.3910622923	-48 49 53.722146927		15.75	12.81	11.41	~	518	2
19	QSO B2155-304	BLL	21 58 52.0651817803	-30 13 32.120657891		13.36	13.09	12.62	~	1586	1

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