Detection of the pairwise kinematic Sunyaev-Zel'dovich effect with BOSS DR11 and the Atacama Cosmology Telescope

被引：72
作者：
De Bernardis, F. [1 ]
Aiola, S. [2 ,3 ]
Vavagiakis, E. M. [1 ]
Battaglia, N. [4 ]
Niemack, M. D. [1 ]
Beall, J. [5 ]
Becker, D. T. [5 ]
Bond, J. R. [6 ]
Calabrese, E. [7 ]
Cho, H. [5 ,8 ]
Coughlin, K. [9 ]
Datta, R. [9 ]
Devlin, M. [10 ]
Dunkley, J. [7 ]
Dunner, R. [11 ,12 ]
Ferraro, S. [13 ,14 ]
Fox, A. [5 ]
Gallardo, P. A. [1 ]
Halpern, M. [15 ]
Hand, N. [14 ]
Hasselfield, M. [16 ,17 ]
Henderson, S. W. [1 ]
Hill, J. C. [18 ]
Hilton, G. C. [5 ,19 ]
Hilton, M.
Hincks, A. D. [14 ,20 ]
Hlozek, R. [21 ]
Hubmayr, J. [5 ]
Huffenberger, K. [22 ]
Hughes, J. P. [23 ]
Irwin, K. D. [5 ,8 ]
Koopman, B. J. [1 ]
Kosowsky, A. [2 ,3 ]
Li, D. [8 ]
Louis, T. [24 ]
Lungu, M. [10 ]
Madhavacheril, M. S. [25 ]
Maurin, L. [11 ,12 ]
McMahon, J. [9 ]
Moodley, K. [19 ]
Naess, S. [7 ]
Nati, F. [10 ]
Newburgh, L. [21 ]
Nibarger, J. P. [5 ]
Page, L. A. [26 ]
Partridge, B. [27 ]
Schaan, E. [4 ]
Schmitt, B. L. [10 ]
Sehgal, N. [25 ]
Sievers, J. [28 ,29 ]
机构：
[1] Cornell Univ, Dept Phys, Ithaca, NY 14853 USA
[2] Univ Pittsburgh, Dept Phys & Astron, 3941 Ohara St, Pittsburgh, PA 15260 USA
[3] Pittsburgh Particle Phys Astrophys & Cosmol Ctr, 3941 Ohara St, Pittsburgh, PA 15260 USA
[4] Princeton Univ, Dept Astrophys Sci, Peyton Hall, Princeton, NJ 08544 USA
[5] NIST, Boulder, CO 80305 USA
[6] Univ Toronto, CITA, 60 St George St, Toronto, ON M5S 3H8, Canada
[7] Univ Oxford, Subdept Astrophys, Keble Rd, Oxford OX1 3RH, England
[8] SLAC Natl Accelerator Lab, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA
[9] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
[10] Univ Penn, Dept Phys & Astron, 209 South 33rd St, Philadelphia, PA 19104 USA
[11] Pontificia Univ Catolica Chile, Fac Fis, Inst Astrofis, Av Vicuna Mackenna 4860, Santiago 7820436, Chile
[12] Pontificia Univ Catolica Chile, Fac Fis, Ctr Astroingn, Av Vicuna Mackenna 4860, Santiago 7820436, Chile
[13] Univ Calif Berkeley, Miller Inst Basic Res Sci, Berkeley, CA 94720 USA
[14] Univ Calif Berkeley, Astron Dept, Berkeley, CA 94720 USA
[15] Univ British Columbia, Dept Phys & Astron, 6224 Agr Rd, Vancouver, BC V6T 1Z1, Canada
[16] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA
[17] Penn State Univ, Inst Gravitat & Cosmos, University Pk, PA 16802 USA
[18] Columbia Univ, Dept Astron, Pupin Hall, New York, NY 10027 USA
[19] Univ KwaZulu Natal, Sch Math Stat & Comp Sci, ZA-4041 Durban, South Africa
[20] Univ Roma La Sapienza, Dept Phys, Piazzale Aldo Moro 5, I-00185 Rome, Italy
[21] Univ Toronto, Dunlap Inst, 50 St George St, Toronto, ON M5S 3H4, Canada
[22] Florida State Univ, Tallahassee, FL 32306 USA
[23] Rutgers State Univ, Dept Phys & Astron, 136 Frelinghuysen Rd, Piscataway, NJ 08854 USA
[24] UPMC Univ Paris 06, Inst Astrophys Paris, UMR7095, F-75014 Paris, France
[25] SUNY Stony Brook, Stony Brook, NY 11794 USA
[26] Princeton Univ, Joseph Henry Labs Phys, Jadwin Hall, Princeton, NJ 08544 USA
[27] Haverford Coll, Dept Phys & Astron, Haverford, PA 19041 USA
[28] Univ KwaZulu Natal, Sch Chem & Phys, ZA-4041 Durban, South Africa
[29] Natl Inst Theoret Phys NITheP, KZN Node, Durban, South Africa
[30] West Chester Univ Pennsylvania, Dept Phys, W Chester, PA 19383 USA
[31] NASA, Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA
来源：
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS | 2017年 / 03期
基金：
美国国家科学基金会; 加拿大创新基金会;
关键词：
CMBR experiments; galaxy surveys; hydrodynamical simulations; Sunyaev-Zeldovich effect; DARK-MATTER HALOS; FLUCTUATIONS; CONSTRAINTS; REDMAPPER; GALAXIES; SIGNAL; GAS;
D O I：
10.1088/1475-7516/2017/03/008
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present a new measurement of the kinematic Sunyaev-Zel'dovich effect using data from the Atacama Cosmology Telescope (ACT) and the Baryon Oscillation Spectroscopic Survey (BOSS). Using 600 square degrees of overlapping sky area, we evaluate the mean pairwise baryon momentum associated with the positions of 50,000 bright galaxies in the BOSS DR11 Large Scale Structure catalog. A non-zero signal arises from the large-scale motions of halos containing the sample galaxies. The data fits an analytical signal model well, with the optical depth to microwave photon scattering as a free parameter determining the overall signal amplitude. We estimate the covariance matrix of the mean pairwise momentum as a function of galaxy separation, using microwave sky simulations, jackknife evaluation, and bootstrap estimates. The most conservative simulation-based errors give signal-to-noise estimates between 3.6 and 4.1 for varying galaxy luminosity cuts. We discuss how the other error determinations can lead to higher signal-to-noise values, and consider the impact of several possible systematic errors. Estimates of the optical depth from the average thermal Sunyaev-Zel'dovich signal at the sample galaxy positions are broadly consistent with those obtained from the mean pairwise momentum signal.
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页数：28
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