Detection of Cosmological 21 cm Emission with the Canadian Hydrogen Intensity Mapping Experiment

被引：48

作者：

Amiri, Mandana ^{[1
]}

Bandura, Kevin ^{[2
,3
]}

Chen, Tianyue ^{[4
]}

Deng, Meiling ^{[1
,5
,6
]}

Dobbs, Matt ^{[7
,8
]}

Fandino, Mateus ^{[1
,9
]}

Foreman, Simon ^{[5
,6
,10
]}

Halpern, Mark S. ^{[1
]}

Hill, Alex ^{[5
,11
]}

Hinshaw, Gary ^{[1
]}

Hofer, Carolin ^{[1
]}

Kania, Joseph ^{[12
]}

Landecker, T. L. ^{[5
]}

MacEachern, Joshua ^{[1
]}

Masui, Kiyoshi ^{[4
,13
]}

Mena-Parra, Juan ^{[4
,14
,15
]}

Milutinovic, Nikola ^{[1
]}

Mirhosseini, Arash ^{[1
]}

Newburgh, Laura ^{[16
]}

Ordog, Anna ^{[5
,11
]}

Pen, Ue-Li ^{[6
,14
,17
,18
]}

Pinsonneault-Marotte, Tristan ^{[1
]}

Polzin, Ava ^{[19
]}

Reda, Alex ^{[16
]}

Renard, Andre ^{[15
]}

Shaw, J. Richard R. ^{[1
]}

Siegel, Seth ^{[6
,7
,8
]}

Singh, Saurabh ^{[7
,8
,20
]}

Vanderlinde, Keith ^{[14
,15
]}

Wang, Haochen V. ^{[4
,13
]}

Wiebe, Donald ^{[1
]}

Wulf, Dallas ^{[7
,8
]}

机构：

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

[2] West Virginia Univ, Dept Comp Sci & Elect Engn, Morgantown, WV USA

[3] West Virginia Univ, Ctr Gravitat Waves & Cosmol, Morgantown, WV USA

[4] Kavli Inst Astrophys & Space Res, MIT, Cambridge, MA USA

[5] Natl Res Council Canada, Herzberg Astron & Astrophys Res Ctr, Domin Radio Astrophys Observ, Penticton, BC, Canada

[6] Perimeter Inst Theoret Phys, Waterloo, ON, Canada

[7] McGill Univ, Dept Phys, Montreal, PQ, Canada

[8] McGill Univ, Trottier Space Inst, Montreal, PQ, Canada

[9] Thompson Rivers Univ, Dept Phys Sci, Kamloops, BC, Canada

[10] Arizona State Univ, Dept Phys, Tempe, AZ USA

[11] Univ British Columbia Okanagan, Dept Comp Sci Math Phys & Stat, Kelowna, BC, Canada

[12] West Virginia Univ, Dept Phys & Astron, Morgantown, WV USA

[13] MIT, Dept Phys, Cambridge, MA USA

[14] Univ Toronto, David A Dunlap Dept Astron & Astrophys, Toronto, ON, Canada

[15] Univ Toronto, Dunlap Inst Astron & Astrophys, Toronto, ON, Canada

[16] Yale Univ, Dept Phys, New Haven, CT USA

[17] Canadian Inst Theoret Astrophys, Toronto, ON, Canada

[18] Acad Sinica, Inst Astron & Astrophys, Taipei, Taiwan

[19] Yale Univ, Dept Astron, New Haven, CT USA

[20] Raman Res Inst, Bengaluru, India

来源：

ASTROPHYSICAL JOURNAL | 2023年 / 947卷 / 01期

基金：

加拿大创新基金会; 加拿大自然科学与工程研究理事会;

关键词：

STAR-FORMING GALAXIES; SPECTROSCOPIC SURVEY MEASUREMENT; ANISOTROPIC POWER SPECTRUM; SCALE STRUCTURE CATALOGS; FLUX-DENSITY SCALE; H I; NEUTRAL HYDROGEN; GROWTH-RATE; ATOMIC-HYDROGEN; REDSHIFT; 0.6;

D O I：

10.3847/1538-4357/acb13f

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a detection of 21 cm emission from large-scale structure (LSS) between redshift 0.78 and 1.43 made with the Canadian Hydrogen Intensity Mapping Experiment. Radio observations acquired over 102 nights are used to construct maps that are foreground filtered and stacked on the angular and spectral locations of luminous red galaxies (LRGs), emission-line galaxies (ELGs), and quasars (QSOs) from the eBOSS clustering catalogs. We find decisive evidence for a detection when stacking on all three tracers of LSS, with the logarithm of the Bayes factor equal to 18.9 (LRG), 10.8 (ELG), and 56.3 (QSO). An alternative frequentist interpretation, based on the likelihood ratio test, yields a detection significance of 7.1 sigma (LRG), 5.7 sigma (ELG), and 11.1 sigma (QSO). These are the first 21 cm intensity mapping measurements made with an interferometer. We constrain the effective clustering amplitude of neutral hydrogen (H I), defined as A(H) (I) equivalent to 10(3) Omega(H I) (b(H I) + < f mu(2)>), where Omega(H I) is the cosmic abundance of H I, b(H I) is the linear bias of H I, and < f mu(2)> = 0.552 encodes the effect of redshift-space distortions at linear order. We find A(H I) = 1.51(-0.97)(+3.60) for LRGs (z = 0.84), A(H I) = 6.76(-3.79)(+9.04) for ELGs (z = 0.96), and H 1.68(-0.6)(+1.10) for QSOs (z = 1.20), with constraints limited by modeling uncertainties at nonlinear scales. We are also sensitive to bias in the spectroscopic redshifts of each tracer, and we find a nonzero bias Delta v = - 66 +/- 20 km s(-1) for the QSOs. We split the QSO catalog into three redshift bins and have a decisive detection in each, with the upper bin at z = 1.30 producing the highest-redshift 21 cm intensity mapping measurement thus far.

引用

页数：59

共 147 条

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Demorest, P. B. ;

Denman, N. T. ;

Dobbs, M. ;

Dong, F. Q. ;

Fandino, M. ;

Fonseca, E. ;

Good, D. C. ;

Halpern, M. ;

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Kaspi, V. M. ;

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Bandura, K. ;

Berger, P. ;

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Brar, C. ;

Burhanpurkar, M. ;

Chawla, P. ;

Chowdhury, J. ;

Cliche, J. -F. ;

Cranmer, M. D. ;

Cubranic, D. ;

Deng, M. ;

Denman, N. ;

Dobbs, M. ;

Fandino, M. ;

Fonseca, E. ;

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Renard, A. ;

Scholz, P. ;

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Bandura, Kevin ;

Boskovic, Anja ;

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Fandino, Mateus ;

Foreman, Simon ;

Halpern, Mark ;

Hanna, David ;

Hill, Alex S. ;

Hinshaw, Gary ;

Hofer, Carolin ;

Kania, Joseph ;

Klages, Peter ;

Landecker, T. L. ;

MacEachern, Joshua ;

Masui, Kiyoshi ;

Mena-Parra, Juan ;

Milutinovic, Nikola ;

Mirhosseini, Arash ;

Newburgh, Laura ;

Nitsche, Rick ;

Ordog, Anna ;

Pen, Ue-Li ;

Pinsonneault-Marotte, Tristan ;

Polzin, Ava ;

Reda, Alex ;

Renard, Andre ;

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Siegel, Seth R. ;

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Halpern, Mark ;

Hill, Alex S. ;

Hinshaw, Gary ;

Hofer, Carolin ;

Kania, Joseph ;

Landecker, T. L. ;

MacEachern, Joshua ;

Masui, Kiyoshi ;

Mena-Parra, Juan ;

Newburgh, Laura ;

Ordog, Anna ;

Pinsonneault-Marotte, Tristan ;

Polzin, Ava ;

Reda, Alex ;

Shaw, J. Richard ;

Siegel, Seth R. ;

Singh, Saurabh ;

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← 1 2 3 4 5 6 7 8 9 10 →

共 147 条

[1] Planck 2018 results: V. CMB power spectra and likelihoods [J].

Aghanim, N. ;

Akrami, Y. ;

Ashdown, M. ;

Aumont, J. ;

Baccigalupi, C. ;

Ballardini, M. ;

Banday, A. J. ;

Barreiro, R. B. ;

Bartolo, N. ;

Basak, S. ;

Benabed, K. ;

Bernard, J. -P. ;

Bersanelli, M. ;

Bielewicz, P. ;

Bock, J. J. ;

Bond, J. R. ;

Borrill, J. ;

Bouchet, F. R. ;

Boulanger, F. ;

Bucher, M. ;

Burigana, C. ;

Butler, R. C. ;

Calabrese, E. ;

Cardoso, J. -F. ;

Carron, J. ;

Casaponsa, B. ;

Challinor, A. ;

Chiang, H. C. ;

Colombo, L. P. L. ;

Combet, C. ;

Crill, B. P. ;

Cuttaia, F. ;

de Bernardis, P. ;

de Rosa, A. ;

de Zotti, G. ;

Delabrouille, J. ;

Delouis, J. -M. ;

Di Valentino, E. ;

Diego, J. M. ;

Dore, O. ;

Douspis, M. ;

Ducout, A. ;

Dupac, X. ;

Dusini, S. ;

Efstathiou, G. ;

Elsner, F. ;

Ensslin, T. A. ;

Eriksen, H. K. ;

Fantaye, Y. ;

Fernandez-Cobos, R. .

ASTRONOMY & ASTROPHYSICS, 2020, 641

[2] The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra [J].

Ahumada, Romina ;

Allende Prieto, Carlos ;

Almeida, Andres ;

Anders, Friedrich ;

Anderson, Scott F. ;

Andrews, Brett H. ;

Anguiano, Borja ;

Arcodia, Riccardo ;

Armengaud, Eric ;

Aubert, Marie ;

Avila, Santiago ;

Avila-Reese, Vladimir ;

Badenes, Carles ;

Balland, Christophe ;

Barger, Kat ;

Barrera-Ballesteros, Jorge K. ;

Basu, Sarbani ;

Bautista, Julian ;

Beaton, Rachael L. ;

Beers, Timothy C. ;

Benavides, B. Izamar T. ;

Bender, Chad F. ;

Bernardi, Mariangela ;

Bershady, Matthew ;

Beutler, Florian ;

Bidin, Christian Moni ;

Bird, Jonathan ;

Bizyaev, Dmitry ;

Blanc, Guillermo A. ;

Blanton, Michael R. ;

Boquien, Mederic ;

Borissova, Jura ;

Bovy, Jo ;

Brandt, W. N. ;

Brinkmann, Jonathan ;

Brownstein, Joel R. ;

Bundy, Kevin ;

Bureau, Martin ;

Burgasser, Adam ;

Burtin, Etienne ;

Cano-Diaz, Mariana ;

Capasso, Raffaella ;

Cappellari, Michele ;

Carrera, Ricardo ;

Chabanier, Solene ;

Chaplin, William ;

Chapman, Michael ;

Cherinka, Brian ;

Chiappini, Cristina ;

Choi, Peter Doohyun .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2020, 249 (01)

[3] Multitracer extension of the halo model: probing quenching and conformity in eBOSS [J].

Alam, Shadab ;

Peacock, John A. ;

Kraljic, Katarina ;

Ross, Ashley J. ;

Comparat, Johan .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2020, 497 (01) :581-595

[4] The 13th Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory [J].

Albareti, Franco D. ;

Allende Prieto, Carlos ;

Almeida, Andres ;

Anders, Friedrich ;

Anderson, Scott ;

Andrews, Brett H. ;

Aragon-Salamanca, Alfonso ;

Argudo-Fernandez, Maria ;

Armengaud, Eric ;

Aubourg, Eric ;

Avila-Reese, Vladimir ;

Badenes, Carles ;

Bailey, Stephen ;

Barbuy, Beatriz ;

Barger, Kat ;

Barrera-Ballesteros, Jorge ;

Bartosz, Curtis ;

Basu, Sarbani ;

Bates, Dominic ;

Battaglia, Giuseppina ;

Baumgarten, Falk ;

Baur, Julien ;

Bautista, Julian ;

Beers, Timothy C. ;

Belfiore, Francesco ;

Bershady, Matthew ;

Bertran de Lis, Sara ;

Bird, Jonathan C. ;

Bizyaev, Dmitry ;

Blanc, Guillermo A. ;

Blanton, Michael ;

Blomqvist, Michael ;

Bolton, Adam S. ;

Borissova, J. ;

Bovy, Jo ;

Brandt, William Nielsen ;

Brinkmann, Jonathan ;

Brownstein, Joel R. ;

Bundy, Kevin ;

Burtin, Etienne ;

Busca, Nicolas G. ;

Camacho Chavez, Hugo Orlando ;

Diaz, M. Cano ;

Cappellari, Michele ;

Carrera, Ricardo ;

Chen, Yanping ;

Cherinka, Brian ;

Cheung, Edmond ;

Chiappini, Cristina ;

Chojnowski, Drew .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2017, 233 (02)

[5] The CHIME Pulsar Project: System Overview [J].

Amiri, M. ;

Bandura, K. M. ;

Boyle, P. J. ;

Brar, C. ;

Cliche, J. -F. ;

Crowter, K. ;

Cubranic, D. ;

Demorest, P. B. ;

Denman, N. T. ;

Dobbs, M. ;

Dong, F. Q. ;

Fandino, M. ;

Fonseca, E. ;

Good, D. C. ;

Halpern, M. ;

Hill, A. S. ;

Hofer, C. ;

Kaspi, V. M. ;

Landecker, T. L. ;

Leung, C. ;

Lin, H. -H. ;

Luo, J. ;

Masui, K. W. ;

McKee, J. W. ;

Mena-Parra, J. ;

Meyers, B. W. ;

Michilli, D. ;

Naidu, A. ;

Newburgh, L. ;

Ng, C. ;

Patel, C. ;

Pinsonneault-Marotte, T. ;

Ransom, S. M. ;

Renard, A. ;

Scholz, P. ;

Shaw, J. R. ;

Sikora, A. E. ;

Stairs, I. H. ;

Tan, C. M. ;

Tendulkar, S. P. ;

Tretyakov, I. ;

Vanderlinde, K. ;

Wang, H. ;

Wang, X. .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2021, 255 (01)

[6] The CHIME Fast Radio Burst Project: System Overview [J].

Amiri, M. ;

Bandura, K. ;

Berger, P. ;

Bhardwaj, M. ;

Boyce, M. M. ;

Boyle, P. J. ;

Brar, C. ;

Burhanpurkar, M. ;

Chawla, P. ;

Chowdhury, J. ;

Cliche, J. -F. ;

Cranmer, M. D. ;

Cubranic, D. ;

Deng, M. ;

Denman, N. ;

Dobbs, M. ;

Fandino, M. ;

Fonseca, E. ;

Gaensler, B. M. ;

Giri, U. ;

Gilbert, A. J. ;

Good, D. C. ;

Guliani, S. ;

Halpern, M. ;

Hinshaw, G. ;

Hofer, C. ;

Josephy, A. ;

Kaspi, V. M. ;

Landecker, T. L. ;

Lang, D. ;

Liao, H. ;

Masui, K. W. ;

Mena-Parra, J. ;

Naidu, A. ;

Newburgh, L. B. ;

Ng, C. ;

Patel, C. ;

Pen, U. -L. ;

Pinsonneault-Marotte, T. ;

Pleunis, Z. ;

Ravandi, M. Rafiei ;

Ransom, S. M. ;

Renard, A. ;

Scholz, P. ;

Sigurdson, K. ;

Siegel, S. R. ;

Smith, K. M. ;

Stairs, I. H. ;

Tendulkar, S. P. ;

Vanderlinde, K. .

ASTROPHYSICAL JOURNAL, 2018, 863 (01)

[7] An Overview of CHIME, the Canadian Hydrogen Intensity Mapping Experiment [J].

Amiri, Mandana ;

Bandura, Kevin ;

Boskovic, Anja ;

Chen, Tianyue ;

Cliche, Jean-Francois ;

Deng, Meiling ;

Denman, Nolan ;

Dobbs, Matt ;

Fandino, Mateus ;

Foreman, Simon ;

Halpern, Mark ;

Hanna, David ;

Hill, Alex S. ;

Hinshaw, Gary ;

Hofer, Carolin ;

Kania, Joseph ;

Klages, Peter ;

Landecker, T. L. ;

MacEachern, Joshua ;

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