Results 21 to 30 of about 292,957 (316)

Testing F(Q) gravity with redshift space distortions [PDF]

, 2020
A Bayesian statistical analysis using redshift space distortions data is performed to test a model of Symmetric Teleparallel Gravity where gravity is non-metrical.
B. J. Barros, T. Barreiro, T. Koivisto, N. Nunes   +3 more
semanticscholar   +1 more source

Dark Energy Survey Year 3 results: redshift calibration of the weak lensing source galaxies [PDF]

Monthly notices of the Royal Astronomical Society, 2020
Determining the distribution of redshifts of galaxies observed by wide-field photometric experiments like the Dark Energy Survey (DES) is an essential component to mapping the matter density field with gravitational lensing.
J. Myles, A. Alarcon, A. Amon, C. S'anchez, S. Everett, J. DeRose, J. McCullough, D. Gruen, G. Bernstein, M. Troxel, S. Dodelson, A. Campos, N. MacCrann, Biao Yin, M. Raveri, A. Amara, M. Becker, A. Choi, J. Cordero, K. Eckert, M. Gatti, G. Giannini, J. Gschwend, R. Gruendl, I. Harrison, W. Hartley, E. Huff, N. Kuropatkin, H. Lin, D. Masters, R. Miquel, J. Prat, A. Roodman, E. Rykoff, I. Sevilla-Noarbe, E. Sheldon, Risa Wechsler, B. Yanny, T. Abbott, M. Aguena, S. Allam, J. Annis, D. Bacon, E. Bertin, S. Bhargava, S. Bridle, D. Brooks, D. Burke, A. Rosell, M. Kind, J. Carretero, F. Castander, C. Conselice, M. Costanzi, M. Crocce, L. Costa, M. Pereira, S. Desai, H. Diehl, T. Eifler, J. Elvin-Poole, A. Evrard, I. Ferrero, A. Fert'e, B. Flaugher, P. Fosalba, J. Frieman, J. Garc'ia-Bellido, E. Gaztañaga, T. Giannantonio, S. Hinton, D. Hollowood, K. Honscheid, B. Hoyle, D. Huterer, D. James, E. Krause, K. Kuehn, O. Lahav, M. Lima, M. Maia, J. Marshall, P. Martini, Peter Melchior, F. Menanteau, J. Mohr, R. Morgan, J. Muir, R. Ogando, A. Palmese, F. Paz-Chinch'on, A. Plazas, M. Rodriguez-Monroy, S. Samuroff, E. Sánchez, V. Scarpine, L. Secco, S. Serrano, M. Smith, M. Soares-Santos, E. Suchyta, M. Swanson, G. Tarlé, D. Thomas, C. To, T. Varga, J. Weller, W. Wester   +107 more
semanticscholar   +1 more source

Hubble sinks in the low-redshift swampland [PDF]

, 2020
Local determinations of the Hubble constant $H_0$ favour a higher value than Planck based on CMB and $\Lambda$CDM. Through a model-independent expansion, we show that low redshift ($z \lesssim 0.7$) data comprising baryon acoustic oscillations (BAO ...
A. Banerjee, H. Cai, Lavinia Heisenberg, E. '. Colg'ain, M. Sheikh-Jabbari, Tao Yang   +5 more
semanticscholar   +1 more source

Noncosmological redshifts [PDF]

Space Science Reviews, 1977
L’introduction de lignes d’univers brisées dans la théorie de la gravitation de Hoyle et Narlikar permet de rendre compte de la création de matière. Cette matière qui se compose de masses inertielles plus petites se manifeste par des décalages spectraux vers le rouge anormaux.
openaire   +2 more sources

The Host Galaxy and Redshift of the Repeating Fast Radio Burst FRB 121102 [PDF]

, 2017
The precise localization of the repeating fast radio burst (FRB 121102) has provided the first unambiguous association (chance coincidence probability p ≲ 3 × 10−4) of an FRB with an optical and persistent radio counterpart.
S. Tendulkar, C. Bassa, J. Cordes, G. C. Bower, C. Law, S. Chatterjee, E. Adams, S. Bogdanov, S. Burke-Spolaor, B. Butler, P. Demorest, J. Hessels, V. Kaspi, T. Lazio, N. Maddox, B. Marcote, M. Mclaughlin, Z. Paragi, S. Ransom, P. Scholz, A. Seymour, L. Spitler, H. V. Langevelde, R. Wharton   +23 more
semanticscholar   +1 more source

A luminous quasar at a redshift of z = 7.085 [PDF]

Nature, 2011
The intergalactic medium was not completely reionized until approximately a billion years after the Big Bang, as revealed by observations of quasars with redshifts of less than 6.5.
D. Mortlock, S. Warren, B. Venemans, M. Patel, P. Hewett, R. McMahon, C. Simpson, T. Theuns, E. Gonzales-Solares, A. Adamson, S. Dye, N. Hambly, P. Hirst, M. Irwin, E. Kuiper, A. Lawrence, H. Röttgering   +16 more
semanticscholar   +1 more source

Redshift Weights for Baryon Acoustic Oscillations : Application to Mock Galaxy Catalogs [PDF]

, 2016
Large redshift surveys capable of measuring the Baryon Acoustic Oscillation (BAO) signal have proven to be an effective way of measuring the distance-redshift relation in cosmology. Building off the work in Zhu et al.
Padmanabhan, Nikhil, Ross, Ashley J., White, Martin, Zhao, Gongbo, Zhu, Fangzhou   +4 more
core   +2 more sources

Clustering-based redshift estimation: comparison to spectroscopic redshifts [PDF]

Monthly Notices of the Royal Astronomical Society, 2015
13 pages. Submitted to MNRAS.
Rahman, Mubdi, Ménard, Brice, Scranton, Ryan, Schmidt, Samuel J., Morrison, Christopher B.   +4 more
openaire   +2 more sources

[O III] / [N II] as an abundance indicator at high redshift [PDF]

, 2004
Among 'empirical' methods of estimating oxygen abundances in extragalactic H II regions, the use of the ratio of nebular lines of [O III] and [N II], first introduced by Alloin et al., is reappraised with modern calibration data and shown to have certain
M. Pettini, B. Pagel
semanticscholar   +1 more source

Accurate precision cosmology with redshift unknown gravitational wave sources [PDF]

, 2020
Gravitational waves can provide an accurate measurement of the luminosity distance to the source but cannot provide the source redshift unless the degeneracy between mass and redshift can be broken.
S. Mukherjee, B. Wandelt, S. Nissanke, A. Silvestri   +3 more
semanticscholar   +1 more source