Multiband microvariability observations of BL Lacertae during the outburst of 1997

被引：43

作者：

Clements, SD ^{[1
]}

Carini, MT

机构：

[1] Florida Inst Technol, Dept Phys & Space Sci, Melbourne, FL 32901 USA

[2] Western Kentucky Univ, Dept Phys & Astron, Bowling Green, KY 42101 USA

来源：

ASTRONOMICAL JOURNAL | 2001年 / 121卷 / 01期

关键词：

BL Lacertae objects : general; BL Lacertae objects : individual (BL Lacertae); galaxies : photometry;

D O I：

10.1086/318037

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

BL Lac was observed in the V and R bands on 11 nights in 1997 July during a major optical outburst. It varied continuously, exhibiting nightly variations ranging from 0.1 to 0.6 mag. Over the course of the 11 nights, BL Lac was seen to vary by 1.8 R magnitudes. Color variations were also observed, with BL Lac becoming bluer as it brightened. The influence of variable seeing conditions on the observed variations was investigated. No correlation was found between the observed microvariability and the local seeing conditions.

引用

页码：90 / 96

页数：7

共 27 条

[1] OPTICAL AND INFRARED POLARIZATION OF ACTIVE EXTRA-GALACTIC OBJECTS [J].

ANGEL, JRP ;

STOCKMAN, HS .

ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, 1980, 18 :321-361

[2] Photometric monitoring of three BL Lacertae objects in 1993-1998 [J].

Bai, JM ;

Xie, GZ ;

Li, KH ;

Zhang, X ;

Liu, WW .

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1999, 136 (03) :455-460

[3] Observations of a correlated gamma-ray and optical flare for BL lacertae [J].

Bloom, SD ;

Bertsch, DL ;

Hartman, RC ;

Sreekumar, P ;

Thompson, DJ ;

Balonek, TJ ;

Beckerman, E ;

Davis, SM ;

Whitman, K ;

Miller, HR ;

Nair, AD ;

Roberts, LC ;

Tosti, G ;

Massaro, E ;

Nesci, R ;

Maesano, M ;

Montagni, F ;

Jang, M ;

Bock, HA ;

Dietrich, M ;

Herter, M ;

Otterbein, K ;

Pfeiffer, M ;

Seitz, T ;

Wagner, S .

ASTROPHYSICAL JOURNAL, 1997, 490 (02) :L145-L148

[4] THE TIMESCALES OF THE OPTICAL VARIABILITY OF BLAZARS .2. AP LIBRAE [J].

CARINI, MT ;

MILLER, HR ;

NOBLE, JC ;

SADUN, AC .

ASTRONOMICAL JOURNAL, 1991, 101 (04) :1196-1201

[5] THE TIMESCALES OF THE OPTICAL VARIABILITY OF BLAZARS .3. OJ 287 AND BL LACERTAE [J].

CARINI, MT ;

MILLER, HR ;

NOBLE, JC ;

GOODRICH, BD .

ASTRONOMICAL JOURNAL, 1992, 104 (01) :15-27

[6] The incidence of the host galaxy in microvariability observations of quasars [J].

Cellone, SA ;

Romero, GE ;

Combi, JA .

ASTRONOMICAL JOURNAL, 2000, 119 (04) :1534-1541

[7] Historic light curve and long-term optical variation of BL Lacertae 2200+420 [J].

Fan, JH ;

Xie, GZ ;

Pecontal, E ;

Pecontal, A ;

Copin, Y .

ASTROPHYSICAL JOURNAL, 1998, 507 (01) :173-178

[8]

Gopal-Krishna Sagar R, 1993, MNRAS, V262, P963, DOI [10.1093/mnras/262.4.963, DOI 10.1093/MNRAS/262.4.963]

[9]

IMPEY C, 1987, SUPERLUMINAL RADIO S, P233

[10] ENERGY-DISTRIBUTIONS OF BLAZARS [J].

IMPEY, CD ;

NEUGEBAUER, G .

ASTRONOMICAL JOURNAL, 1988, 95 (02) :307-351

← 1 2 3 →