INITIAL LIGHT-CURVE OF Q2237+0305

被引:139
作者
CORRIGAN, RT
IRWIN, MJ
ARNAUD, J
FAHLMAN, GG
FLETCHER, JM
HEWETT, PC
HEWITT, JN
LEFEVRE, O
MCCLURE, R
PRITCHET, CJ
SCHNEIDER, DP
TURNER, EL
WEBSTER, RL
YEE, HKC
机构
[1] OBSERV MIDI PYRENEES,F-31400 TOULOUSE,FRANCE
[2] UNIV BRITISH COLUMBIA,DEPT GEOPHYS & ASTRON,VANCOUVER V6T 1W5,BC,CANADA
[3] NATL RES COUNCIL CANADA,DOMIN ASTROPHYS OBSERV,VICTORIA V8A 4M6,BC,CANADA
[4] MIT,DEPT PHYS,CAMBRIDGE,MA 02139
[5] CANADA FRANCE HAWAII TELESCOPE CORP,KAMUELA,HI 96743
[6] DAEC OBSERV PARIS MEUDON,F-92195 MEUDON,FRANCE
[7] UNIV VICTORIA,DEPT PHYS & ASTRON,VICTORIA V8W 3P6,BC,CANADA
[8] INST ADV STUDY,SCH NAT SCI,PRINCETON,NJ 08540
[9] PRINCETON UNIV OBSERV,PRINCETON,NJ 08544
[10] UNIV TORONTO,CANADIAN INST THEORET ASTROPHYS,MCLENNAN LAB,TORONTO M5S 1A1,ONTARIO,CANADA
[11] UNIV TORONTO,DEPT ASTRON,TORONTO M5S 1A1,ONTARIO,CANADA
关键词
D O I
10.1086/115856
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present CCD photometry for the gravitationally lensed quasar system 2237 + 0305, in optical passbands from B through R, taken over a time period of more than 3 yr. These data provide new information about the probable microlensing event reported in Irwin et al. [AJ, 98, 1989 (1989)]; the rise time of this feature is approximately 26 days. Four additional independent brightness changes in the quasar images are detected.
引用
收藏
页码:34 / 40
页数:7
相关论文
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