Euclid: Forecasts from redshift-space distortions and the Alcock-Paczynski test with cosmic voids

被引：34

作者：

Hamaus, N. ^{[1
]}

Aubert, M. ^{[2
,3
]}

Pisani, A. ^{[4
]}

Contarini, S. ^{[5
,6
,7
]}

Verza, G. ^{[8
,9
]}

Cousinou, M-C ^{[3
]}

Escoffier, S. ^{[3
]}

Hawken, A. ^{[3
]}

Lavaux, G. ^{[10
,11
]}

Pollina, G. ^{[1
]}

Wandelt, B. D. ^{[10
,11
]}

Weller, J. ^{[1
,12
]}

Bonici, M. ^{[13
,14
]}

Carbone, C. ^{[15
,16
]}

Guzzo, L. ^{[15
,17
,18
]}

Kovacs, A. ^{[19
,20
]}

Marulli, F. ^{[6
,21
,22
]}

Massara, E. ^{[23
,24
]}

Moscardini, L. ^{[6
,21
,22
]}

Ntelis, P. ^{[3
]}

Percival, W. J. ^{[23
,24
,25
]}

Radinovic, S. ^{[26
]}

Sahlen, M. ^{[27
,28
]}

Sakr, Z. ^{[29
,30
]}

Sanchez, A. G. ^{[12
]}

Winther, H. A. ^{[26
]}

Auricchio, N. ^{[22
]}

Awan, S. ^{[31
]}

Bender, R. ^{[1
,12
]}

Bodendorf, C. ^{[12
]}

Bonino, D. ^{[32
]}

Branchini, E. ^{[33
,34
]}

Brescia, M. ^{[35
]}

Brinchmann, J. ^{[36
]}

Capobianco, V ^{[32
]}

Carretero, J. ^{[37
,38
]}

Castander, F. J. ^{[39
,40
]}

Castellano, M. ^{[41
]}

Cavuoti, S. ^{[35
,42
,43
]}

Cimatti, A. ^{[5
,44
]}

Cledassou, R. ^{[45
,46
]}

Congedo, G. ^{[47
]}

Conversi, L. ^{[48
,49
]}

Copin, Y. ^{[50
]}

Corcione, L. ^{[32
]}

Cropper, M. ^{[31
]}

Da Silva, A. ^{[51
,52
]}

Degaudenzi, H. ^{[53
]}

Douspis, M. ^{[54
]}

Dubath, F. ^{[53
]}

机构：

[1] Ludwig Maximilians Univ MUnchen, Univ Sternwarte MUnchen, Fak Phys, Scheinerstr 1, D-81679 Munich, Germany

[2] Univ Lyon, UCB Lyon 1, IUF, CNRS IN2P3,IP21, Lyon, France

[3] Aix Marseille Univ, CPPM, CNRS IN2P3, Marseille, France

[4] Princeton Univ, Dept Astrophys Sci, Peyton Hall, Princeton, NJ 08544 USA

[5] Alma Mater Studiorum Univ Bologna, Dipartimento Fis & Astron Augusto Righi, Viale Berti Pichat 6-2, I-40127 Bologna, Italy

[6] Ist Nazl Fis Nucl, Sez Bologna, Viale Berti Pichat 6-2, I-40127 Bologna, Italy

[7] INAF IASF Bologna, Via Piero Gobetti 101, I-40129 Bologna, Italy

[8] INFN Padova, Via Marzolo 8, I-35131 Padua, Italy

[9] Univ Padua, Dipartimento Fis & Astron G Galilei, Via Marzolo 8, I-35131 Padua, Italy

[10] UPMC Univ Paris 6, Sorbonne Univ, 98Bis Bd Arago, F-75014 Paris, France

[11] CNRS, UMR 7095, Inst cAstrophys Paris, 98Bis Bd Arago, F-75014 Paris, France

[12] Max Planck Inst Extraterr Phys, Giessenbachstr 1, D-85748 Garching, Germany

[13] Ist Nazl Fis Nucl, Sez Genova, Via Dodecaneso 33, I-16146 Genoa, Italy

[14] Univ Genoa, Dipartimento Fis, Via Dodecaneso 33, I-16146 Genoa, Italy

[15] Ist Nazl Fis Nucl, Sez Milano, Via Celoria 16, I-20133 Milan, Italy

[16] INAF IASF Milano, Via Alfonso Corti 12, I-20133 Milan, Italy

[17] Univ Milan, Dipartimento Fis Aldo Pontremoli, Via Celoria 16, I-20133 Milan, Italy

[18] INAF Osservatorio Astron Brera, Via Brera 28, I-20122 Milan, Italy

[19] Univ La Laguna, Tenerife 38206, Spain

[20] Inst Astrofis Canarias, Calle Via Lactea S-N, Tenerife 38204, Spain

[21] Alma Mater Studiorum Univ Bologna, Dipartimento Fis & Astron Augusto Righi, Via Piero Gobetti 93-2, I-40129 Bologna, Italy

[22] INAF Osservatorio Astrofis & Sci Spazio Bologna, Via Piero Gobetti 93-3, I-40129 Bologna, Italy

[23] Univ Waterloo, Dept Phys & Astron, Waterloo, ON N2L 3G1, Canada

[24] Univ Waterloo, Ctr Astrophys, Waterloo, ON N2L 3G1, Canada

[25] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada

[26] Univ Oslo, Inst Theoret Astrophys, POB 1029, N-0315 Oslo, Norway

[27] Swedish Coll Adv Study, Thunbergsvagen 2, S-75238 Uppsala, Sweden

[28] Uppsala Univ, Dept Phys & Astron, Theoret Astrophys, Box 515, S-75120 Uppsala, Sweden

[29] Univ St Joseph, UR EGFEM, Fac Sci, Beirut, Lebanon

[30] Univ Toulouse, Inst Rech Astrophys & Planetol IRAP, CNES, UPS,CNRS, 14 Av Edouard Belin, F-31400 Toulouse, France

[31] Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England

[32] INAF Osservatorio Astrofis Torino, Via Osservatorio 20, I-10025 Pino Torinese, TO, Italy

[33] Ist Nazl Fis Nucl, Sez Roma Tre, Via Vasca Navale 84, I-00146 Rome, Italy

[34] Roma Tre Univ, Dept Math & Phys, Via Vasca Navale 84, I-00146 Rome, Italy

[35] INAF Osservatorio Astron Capodimonte, Via Moiariello 16, I-80131 Naples, Italy

[36] Univ Porto, Inst Astrofis & Ciencias Espaco, CAUP, Rua Estrelas, P-4150762 Porto, Portugal

[37] Port Informacio Cient, Campus UAB,C Albareda S-N, Barcelona 08193, Spain

[38] Barcelona Inst Sci & Technol, Inst Fis Altes Energies IFAE, Campus UAB, Barcelona 08193, Spain

[39] CSIC, Inst Space Sci ICE, Campus UAB,Carrer Can Magrans S-N, Barcelona 08193, Spain

[40] Inst Estudis Espacials Catalunya IEEC, Carrer Gran Capita 2-4, Barcelona 08034, Spain

[41] INAF Osservatorio Astron Roma, Via Frascati 33, I-00078 Monte Porzio Catone, Italy

[42] Univ Federico II, Dept Phys E Pancini, Via Cinthia 6, I-80126 Naples, Italy

[43] Ist Nazl Fis Nucl, Sect Naples, Via Cinthia 6, I-80126 Naples, Italy

[44] INAF Osservatorio Astrofis Arcetri, Largo E Fermi 5, I-50125 Florence, Italy

[45] Inst Natl Phys Nucl & Phys Particules, 3 Rue Michel Ange, F-75794 Paris 16, France

[46] Ctr Natl Etud Spatiales, Toulouse, France

[47] Univ Edinburgh, Inst Astron, Royal Observ, Blackford Hill, Edinburgh EH9 3HJ, Midlothian, Scotland

[48] European Space Agcy, ESRIN, Largo Galileo Galilei 1, I-00044 Rome, Italy

[49] ESAC ESA, Camino Bajo del Castillo S-N, Madrid 28692, Spain

[50] Univ Lyon, Univ Claude Bernard Lyon 1, IP2I Lyon, CNRS IN2P3,UMR 5822, F-69622 Villeurbanne, France

来源：

ASTRONOMY & ASTROPHYSICS | 2022年 / 658卷

基金：

美国国家航空航天局;

关键词：

cosmology: observations; cosmological parameters; dark energy; large-scale structure of Universe; methods: data analysis; surveys; OSCILLATION SPECTROSCOPIC SURVEY; SURVEY COSMOLOGICAL IMPLICATIONS; DARK ENERGY; LUMINOSITY FUNCTION; GRAVITATIONAL-INSTABILITY; GALAXY TROUGHS; REAL-SPACE; DENSITY; MATTER; GRAVITY;

D O I：

10.1051/0004-6361/202142073

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Euclid is poised to survey galaxies across a cosmological volume of unprecedented size, providing observations of more than a billion objects distributed over a third of the full sky. Approximately 20 million of these galaxies will have their spectroscopy available, allowing us to map the three-dimensional large-scale structure of the Universe in great detail. This paper investigates prospects for the detection of cosmic voids therein and the unique benefit they provide for cosmological studies. In particular, we study the imprints of dynamic (redshift-space) and geometric (Alcock-Paczynski) distortions of average void shapes and their constraining power on the growth of structure and cosmological distance ratios. To this end, we made use of the Flagship mock catalog, a state-of-the-art simulation of the data expected to be observed with Euclid. We arranged the data into four adjacent redshift bins, each of which contains about 11000 voids and we estimated the stacked void-galaxy cross-correlation function in every bin. Fitting a linear-theory model to the data, we obtained constraints on f/b and DMH, where f is the linear growth rate of density fluctuations, b the galaxy bias, D-M the comoving angular diameter distance, and H the Hubble rate. In addition, we marginalized over two nuisance parameters included in our model to account for unknown systematic effects in the analysis. With this approach, Euclid will be able to reach a relative precision of about 4% on measurements of f/b and 0.5% on DMH in each redshift bin. Better modeling or calibration of the nuisance parameters may further increase this precision to 1% and 0.4%, respectively. Our results show that the exploitation of cosmic voids in Euclid will provide competitive constraints on cosmology even as a stand-alone probe. For example, the equation-of-state parameter, w, for dark energy will be measured with a precision of about 10%, consistent with previous more approximate forecasts.

引用

页数：14

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