CORRELATIONS IN THE (SUB) MILLIMETER BACKGROUND FROM ACT x BLAST

被引：26

作者：

Hajian, Amir ^{[1
,2
,3
]}

Viero, Marco P. ^{[4
,5
]}

Addison, Graeme ^{[6
]}

Aguirre, Paula ^{[7
]}

Appel, John William ^{[3
]}

Battaglia, Nick ^{[1
]}

Bock, James J. ^{[4
,8
]}

Bond, J. Richard ^{[1
]}

Das, Sudeep ^{[2
,3
,9
,10
]}

Devlin, Mark J. ^{[11
]}

Dicker, Simon R. ^{[11
]}

Dunkley, Joanna ^{[2
,3
,6
]}

Duenner, Rolando ^{[3
]}

Essinger-Hileman, Thomas ^{[3
]}

Hughes, John P. ^{[12
]}

Fowler, Joseph W. ^{[3
,13
]}

Halpern, Mark ^{[14
]}

Hasselfield, Matthew ^{[15
]}

Hilton, Matt ^{[16
,17
]}

Hincks, Adam D. ^{[3
]}

Hlozek, Renee ^{[6
]}

Irwin, Kent D. ^{[13
]}

Klein, Jeff ^{[11
]}

Kosowsky, Arthur ^{[18
]}

Lin, Yen-Ting ^{[19
]}

Marriage, Tobias A. ^{[2
,20
]}

Marsden, Danica ^{[11
,14
]}

Marsden, Gaelen

Menanteau, Felipe ^{[12
]}

Moncelsi, Lorenzo ^{[21
]}

Moodley, Kavilan ^{[16
]}

Netterfield, Calvin B. ^{[5
,22
]}

Niemack, Michael D. ^{[3
,13
]}

Nolta, Michael R. ^{[1
]}

Page, Lyman A. ^{[3
]}

Parker, Lucas ^{[3
]}

Patanchon, Guillaume ^{[15
]}

Scott, Douglas ^{[14
]}

Sehgal, Neelima ^{[23
]}

Sievers, Jon ^{[1
]}

Spergel, David N. ^{[2
]}

Staggs, Suzanne T. ^{[3
]}

Swetz, Daniel S. ^{[11
,13
]}

Switzer, Eric R. ^{[3
,24
]}

Thornton, Robert ^{[11
,25
]}

Wollack, Ed ^{[26
]}

机构：

[1] Univ Toronto, Canadian Inst Theoret Astrophys, Toronto, ON M5S 3H8, Canada

[2] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA

[3] Princeton Univ, Joseph Henry Labs Phys, Princeton, NJ 08544 USA

[4] CALTECH, Pasadena, CA 91125 USA

[5] Univ Toronto, Dept Astron & Astrophys, Toronto, ON M5S 3H4, Canada

[6] Univ Oxford, Dept Astrophys, Oxford OX1 3RH, England

[7] Pontificia Univ Catolica Chile, Fac Fis, Dept Astron & Astrofis, Santiago 22, Chile

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

[9] Univ Calif Berkeley, Berkeley Ctr Cosmol Phys, LBL, Berkeley, CA 94720 USA

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

[11] Univ Penn, Dept Phys & Astron, Philadelphia, PA 19104 USA

[12] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

[13] NIST Quantum Devices Grp, Boulder, CO 80305 USA

[14] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z4, Canada

[15] Univ Paris Diderot, Lab APC, F-75205 Paris, France

[16] Univ KwaZulu Natal, Astrophys & Cosmol Res Unit, Sch Math Sci, ZA-4041 Durban, South Africa

[17] Univ Nottingham, Sch Phys & Astron, Nottingham NG7 2RD, England

[18] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA

[19] Univ Tokyo, Inst Phys & Math Universe, Kashiwa, Chiba 2778568, Japan

[20] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA

[21] Cardiff Univ, Dept Phys & Astron, Cardiff CF24 3AA, S Glam, Wales

[22] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

[23] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA

[24] Kavli Inst Cosmol Phys, Chicago, IL 60637 USA

[25] W Chester Univ Penn, Dept Phys, W Chester, PA 19383 USA

[26] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

ASTROPHYSICAL JOURNAL | 2012年 / 744卷 / 01期

基金：

加拿大自然科学与工程研究理事会; 英国科学技术设施理事会; 加拿大创新基金会; 美国国家科学基金会;

关键词：

cosmic background radiation; cosmology: observations; galaxies: evolution; infrared: galaxies; large-scale structure of universe; submillimeter: galaxies; ATACAMA COSMOLOGY TELESCOPE; APERTURE SUBMILLIMETER TELESCOPE; POWER SPECTRUM; STATISTICAL PROPERTIES; STAR-FORMATION; NUMBER COUNTS; MU-M; GALAXIES; ANISOTROPIES; TEMPERATURE;

D O I：

10.1088/0004-637X/744/1/40

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present measurements of the auto- and cross-frequency correlation power spectra of the cosmic (sub) millimeter background at 250, 350, and 500 mu m (1200, 860, and 600 GHz) from observations made with the Balloonborne Large Aperture Submillimeter Telescope (BLAST); and at 1380 and 2030 mu m (218 and 148 GHz) from observations made with the Atacama Cosmology Telescope (ACT). The overlapping observations cover 8.6 deg(2) in an area relatively free of Galactic dust near the south ecliptic pole. The ACT bands are sensitive to radiation from the cosmic microwave background, to the Sunyaev-Zel'dovich effect from galaxy clusters, and to emission by radio and dusty star-forming galaxies (DSFGs), while the dominant contribution to the BLAST bands is from DSFGs. We confirm and extend the BLAST analysis of clustering with an independent pipeline and also detect correlations between the ACT and BLAST maps at over 25 sigma significance, which we interpret as a detection of the DSFGs in the ACT maps. In addition to a Poisson component in the cross-frequency power spectra, we detect a clustered signal at 4 sigma, and using a model for the DSFG evolution and number counts, we successfully fit all of our spectra with a linear clustering model and a bias that depends only on redshift and not on scale. Finally, the data are compared to, and generally agree with, phenomenological models for the DSFG population. This study demonstrates the constraining power of the cross-frequency correlation technique to constrain models for the DSFGs. Similar analyses with more data will impose tight constraints on future models.

引用

页数：15

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