CORRELATED RADIO AND OPTICAL VARIABILITY IN THE BL LACERTAE OBJECT 0716+714

被引：134

作者：

QUIRRENBACH, A

WITZEL, A

WAGNER, S

SANCHEZPONS, F

KRICHBAUM, TP

WEGNER, R

ANTON, K

ERKENS, U

HAEHNELT, M

ZENSUS, JA

JOHNSTON, KJ

机构：

[1] LANDESSTERNWARTE HEIDELBERG,W-6900 HEIDELBERG 1,GERMANY

[2] USN,RES LAB,CTR ADV SPACE SENSING,WASHINGTON,DC 20375

[3] MAX PLANCK INST RADIOASTRON,W-5300 BONN 1,GERMANY

[4] NATL RADIO ASTRON OBSERV,SOCORRO,NM 87801

来源：

ASTROPHYSICAL JOURNAL | 1991年 / 372卷 / 02期

关键词：

BL LACERTAE OBJECTS; GALAXIES; JETS; NUCLEI; QUASARS; RADIO SOURCES; VARIABLE;

D O I：

10.1086/186026

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present results from simultaneous optical and radio observations of the BL Lacertae object 0716 + 714. During a 4 week period of continuous monitoring the source displayed in both wavelength regimes a transition between states of fast and slow variability with a change of the typical variability time scale from approximately 1 day to approximately 7 days. We interpret the simultaneous transition as evidence for intrinsic source variability, and we discuss some consequences for the optical and radio emission regions.

引用

页码：L71 / L74

页数：4

共 19 条

[1]

ACHATZ U, 1990, ASTRON ASTROPHYS, V233, P391

[2] DEEP RADIO MAPS OF HIGH-FREQUENCY SELECTED BL LAC OBJECTS [J].

ANTONUCCI, RRJ ;

HICKSON, P ;

OLSZEWSKI, EW ;

MILLER, JS .

ASTRONOMICAL JOURNAL, 1986, 92 (01) :1-5

[3]

Belov V. N., 1989, ASTROFIZIKA, V30, P7

[4] MULTIFREQUENCY OBSERVATIONS OF THE SUPERLUMINAL QUASAR 3C 345 [J].

BREGMAN, JN ;

GLASSGOLD, AE ;

HUGGINS, PJ ;

NEUGEBAUER, G ;

SOIFER, BT ;

MATTHEWS, K ;

ELIAS, J ;

WEBB, J ;

POLLOCK, JT ;

PICA, AJ ;

LEACOCK, RJ ;

SMITH, AG ;

ALLER, HD ;

ALLER, MF ;

HODGE, PE ;

DENT, WA ;

BALONEK, TJ ;

BARVAINIS, RE ;

ROELLIG, TPL ;

WISNIEWSKI, WZ ;

RIEKE, GH ;

LEBOFSKY, MJ ;

WILLS, BJ ;

WILLS, D ;

KU, WHM ;

BREGMAN, JD ;

WITTEBORN, FC ;

LESTER, DF ;

IMPEY, CD ;

HACKWELL, JA .

ASTROPHYSICAL JOURNAL, 1986, 301 (02) :708-726

[5]

COURVOISIER TJL, 1990, ASTRON ASTROPHYS, V234, P73

[6] THE DISCRETE CORRELATION-FUNCTION - A NEW METHOD FOR ANALYZING UNEVENLY SAMPLED VARIABILITY DATA [J].

EDELSON, RA ;

KROLIK, JH .

ASTROPHYSICAL JOURNAL, 1988, 333 (02) :646-659

[7] RAPID VARIABILITY OF EXTRAGALACTIC RADIO-SOURCES [J].

HEESCHEN, DS ;

KRICHBAUM, T ;

SCHALINSKI, CJ ;

WITZEL, A .

ASTRONOMICAL JOURNAL, 1987, 94 (06) :1493-1507

[8] PHYSICS OF COMPACT NONTHERMAL SOURCES .2. DETERMINATION OF PHYSICAL PARAMETERS [J].

JONES, TW ;

ODELL, SL ;

STEIN, WA .

ASTROPHYSICAL JOURNAL, 1974, 192 (02) :261-278

[9]

KIKUCHI S, 1988, ASTRON ASTROPHYS, V190, pL8

[10] DETECTION OF MICROVARIABILITY FOR BL LACERTAE OBJECTS [J].

MILLER, HR ;

CARINI, MT ;

GOODRICH, BD .

NATURE, 1989, 337 (6208) :627-629

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