HUBBLE SPACE TELESCOPE DISCOVERY OF A z=3.9 MULTIPLY IMAGED GALAXY BEHIND THE COMPLEX CLUSTER LENS WARPS J1415.1+36 AT z=1.026

被引：22

作者：

Huang, X. ^{[1
]}

Morokuma, T. ^{[2
]}

Fakhouri, H. K. ^{[1
,3
]}

Aldering, G. ^{[3
]}

Amanullah, R. ^{[4
]}

Barbary, K. ^{[1
,3
]}

Brodwin, M. ^{[5
]}

Connolly, N. V. ^{[6
]}

Dawson, K. S. ^{[7
]}

Doi, M. ^{[8
]}

Faccioli, L. ^{[3
]}

Fadeyev, V. ^{[9
]}

Fruchter, A. S. ^{[10
]}

Goldhaber, G. ^{[1
,3
]}

Gladders, M. D. ^{[11
]}

Hennawi, J. F. ^{[1
]}

Ihara, Y.

Jee, M. J. ^{[12
]}

Kowalski, M. ^{[13
]}

Konishi, K. ^{[14
]}

Lidman, C. ^{[15
]}

Meyers, J. ^{[1
,3
]}

Moustakas, L. A. ^{[16
]}

Perlmutter, S. ^{[1
,3
]}

Rubin, D. ^{[1
,3
]}

Schlegel, D. J. ^{[3
]}

Spadafora, A. L. ^{[3
]}

Suzuki, N. ^{[3
]}

Takanashi, N. ^{[2
]}

Yasuda, N.

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[2] Natl Inst Nat Sci, Natl Astron Observ Japan, Mitaka, Tokyo 1818588, Japan

[3] EO Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

[4] Stockholm Univ, Dept Phys, Albanova Univ Ctr, S-10691 Stockholm, Sweden

[5] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[6] Hamilton Coll, Dept Phys, Clinton, NY 13323 USA

[7] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA

[8] Univ Tokyo, Grad Sch Sci, Inst Astron, Tokyo 1810015, Japan

[9] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA

[10] Space Telescope Sci Inst, Baltimore, MD 21218 USA

[11] Univ Chicago, Dept Astron & Astrophys, Chicago, IL 60637 USA

[12] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[13] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

[14] Univ Tokyo, Inst Cosm Ray Res, Chiba 2778582, Japan

[15] Oskar Klein Ctr, S-10691 Stockholm, Sweden

[16] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

ASTROPHYSICAL JOURNAL LETTERS | 2009年 / 707卷 / 01期

关键词：

galaxies: clusters: general; galaxies: clusters: individual (WARPS J1415.1+36); gravitational lensing; X-RAY; SCALING RELATIONS; DARK-ENERGY; EVOLUTION; CAMERA; SAMPLE; ARCS;

D O I：

10.1088/0004-637X/707/1/L12

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the discovery of a multiply lensed Ly alpha emitter at z = 3.90 behind the massive cluster WARPS J1415.1+3612 at z = 1.026. Images taken by the Hubble Space Telescope using the Advanced Camera for Surveys reveal a complex lensing system that produces a prominent, highly magnified arc and a triplet of smaller arcs grouped tightly around a spectroscopically confirmed cluster member. Spectroscopic observations using the Faint Object Camera and Spectrograph on Subaru confirm strong Lya emission in the source galaxy and provide the redshifts for more than 21 cluster members with a velocity dispersion of 807 +/- 185 km s(-1). Assuming a singular isothermal sphere profile, the mass within the Einstein ring (7.13 +/- 0.'' 38) corresponds to a central velocity dispersion of 686(-19)(+15) km s(-1) for the cluster, consistent with the value estimated from cluster member redshifts. Our mass profile estimate from combining strong lensing and dynamical analyses is in good agreement with both X-ray and weak lensing results.

引用

页码：L12 / L16

页数：5

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