2004AJ....127...17H

Query : 2004AJ....127...17H

2004AJ....127...17H - Astron. J., 127, 17-23 (2004/January-0)

Microvariability and long-term variability of four blazars.

HOWARD E.S., WEBB J.R., POLLOCK J.T. and STENCEL R.E.

Abstract (from CDS):

Long-term light curves of four blazars, Mrk 421, Mrk 501, 3C 345, and BL Lacertae were constructed using archival data and supplemented with new observations. The occurrences of microvariability are correlated temporally with long-term optical activity in the light curves. Although the statistics are not conclusive, we find evidence that microvariability is correlated with rapid flux changes rather than specific flux levels. We discuss the implications of these results for quasar variability models.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: BL Lacertae Objects: Individual: Name: Markarian 501 - Galaxies: BL Lacertae Objects: Individual: Name: Markarian 421 - Galaxies: BL Lacertae Objects: Individual: Name: BL Lacertae - quasars: individual(3C 345)

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 Z 184-50 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2841 1
2 UCAC4 650-056580 * 16 42 52.8788960904 +39 48 33.610151880   16.418 15.292 15.082   ~ 8 0
3 UCAC4 650-056582 * 16 42 54.8466469680 +39 50 00.599955864   16.048 15.304 15.232   ~ 8 0
4 3C 345 Bla 16 42 58.80997043 +39 48 36.9939552   16.81 16.59 16.84   ~ 1808 3
5 Z 225-7 BLL 16 53 52.21668403 +39 45 36.6088754 14.09 14.15 13.29 8.26   ~ 2304 2
6 UCAC4 662-103456 * 22 02 32.6299398528 +42 16 47.437123332   15.782 14.468 14.113 12.93 ~ 12 0
7 UCAC4 662-103462 * 22 02 36.0642124344 +42 16 53.869147068   16.491 15.672 15.576 14.34 ~ 11 0
8 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2397 1
9 [BDV69] BL Lac B * ~ ~           ~ 2 0
10 [BDV69] BL Lac C * ~ ~           ~ 2 0

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