Weighing a galaxy bar in the lens Q2237+0305

被引：77
作者：
Schmidt, R
Webster, RL
Lewis, GF
机构：
[1] Univ Melbourne, Sch Phys, Parkville, Vic 3052, Australia
[2] SUNY Stony Brook, Stony Brook, NY 11794 USA
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 1998年 / 295卷 / 02期
关键词：
galaxies; fundamental parameters; individual; 2237; 0305; spiral; gravitational lensing;
D O I：
10.1046/j.1365-8711.1998.01326.x
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In the gravitational lens system Q2237 + 0305 the cruciform quasar image geometry is twisted by 10 degrees by the lens effect of a bar in the lensing galaxy. This effect can be used to measure the mass of the bar. We construct a new lensing model for this system with a power-law elliptical bulge and a Ferrers bar. The observed ellipticity of the optical isophotes of the galaxy leads to a nearly isothermal elliptical profile for the bulge, with a total quasar magnification of 16(-4)(+5). We measure a bar mass of (7.5 +/- 1.5) x 10(8) h(75)(-1) M. in the region inside the quasar images.
引用
收藏
页码：488 / 496
页数：9
相关论文
共 47 条
[41]   Three photometric methods tested on ground-based data of Q 2237+0305 [J].
Burud, I ;
Stabell, R ;
Magain, P ;
Courbin, F ;
Ostensen, R ;
Refsdal, S ;
Remy, M ;
Teuber, J .
ASTRONOMY & ASTROPHYSICS, 1998, 339 (03) :701-708
[42]   Study of the extended narrow-line region in the host galaxy of the lensed QSO 2237+0305 (z=1.69) [J].
Motta, V ;
Mediavilla, E ;
Muñoz, JA ;
Falco, E .
ASTROPHYSICAL JOURNAL, 2004, 613 (01) :86-94
[43]   1ST RESULTS FROM THE FAINT OBJECT CAMERA - IMAGES OF THE GRAVITATIONAL LENS SYSTEM G2237+0305 [J].
CRANE, P ;
ALBRECHT, R ;
BARBIERI, C ;
BLADES, JC ;
BOKSENBERG, A ;
DEHARVENG, JM ;
DISNEY, MJ ;
JAKOBSEN, P ;
KAMPERMAN, TM ;
KING, IR ;
MACCHETTO, F ;
MACKAY, CD ;
PARESCE, F ;
WEIGELT, G ;
BAXTER, D ;
GREENFIELD, P ;
JEDRZEJEWSKI, R ;
NOTA, A ;
SPARKS, WB .
ASTROPHYSICAL JOURNAL, 1991, 369 (02) :L59-&
[44]   The optical gravitational lensing experiment. OGLE-III long term monitoring of the gravitational lens QSO 2237+0305 [J].
Udalski, A. ;
Szymanski, M. K. ;
Kubiak, M. ;
Pietrzynski, G. ;
Soszynski, I. ;
Zebrun, K. ;
Szewczyk, O. ;
Wyrzykowski, L. ;
Ulaczyk, K. ;
Wieckowski, T. .
ACTA ASTRONOMICA, 2006, 56 (04) :293-305
[45]   SUBARU MID-INFRARED IMAGING OF THE QUADRUPLE LENSES. II. UNVEILING LENS STRUCTURE OF MG0414+0534 AND Q2237+030 [J].
Minezaki, Takeo ;
Chiba, Masashi ;
Kashikawa, Nobunari ;
Inoue, Kaiki Taro ;
Kataza, Hirokazu .
ASTROPHYSICAL JOURNAL, 2009, 697 (01) :610-618
[46]   X-ray detection of the primary lens galaxy cluster of the gravitational lens system Q0957+561 [J].
Chartas, G ;
Chuss, D ;
Forman, W ;
Jones, C ;
Shapiro, I .
ASTROPHYSICAL JOURNAL, 1998, 504 (02) :661-670
[47]   Spectroscopy of the lens galaxy of Q0957+561A,B: Implications of a possible central massive dark object [J].
Mediavilla, E ;
Serra-Ricart, M ;
Oscoz, A ;
Goicoechea, L ;
Buitrago, J .
ASTROPHYSICAL JOURNAL, 2000, 531 (02) :635-641
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