scholarly journals Joint analyses of 2D CMB lensing and 3D galaxy clustering in the spherical Fourier-Bessel basis

2021 ◽  
Vol 104 (10) ◽  
Author(s):  
Yucheng Zhang ◽  
Anthony R. Pullen ◽  
Abhishek S. Maniyar
Keyword(s):  
Galaxy Clustering

scholarly journals The Environment of OJ 287: Nearby Galaxies and a Long Optical Jet?

1996 ◽  
Vol 175 ◽  
pp. 47-48
Author(s):  
A. Sillanpää ◽  
L. Takalo ◽  
K. Nilsson ◽  
T. Pursimo ◽  
P. Teerikorpi ◽  
...  
Keyword(s):  
Large Scale ◽  
Radio Galaxies ◽  
Trigger Mechanism ◽  
Galaxy Clustering ◽  
Bl Lac Objects ◽  
Close Interaction ◽  
Relativistic Jet ◽  
Bl Lac ◽  
Nearby Galaxies ◽  
Bl Lacs

A widely accepted model for BL Lac objects is that they are radio galaxies with a relativistic jet pointing almost directly towards us. But we need a clear trigger mechanism for these jets. One possibility is the close interaction between the BL Lac host and the closeby galaxies (e.g. Heckman et al. 1986). This interaction has been seen many times in the case of quasars (Hutchings et al. 1989) but not so much is known about the close surroundings of the BL Lac objects although there has been some pioneer work like Stickel et al. (1993). The problem has usually been that the images are not deep enough and that the seeing has not been so good. To clarify the situation we have started an observing program to get very deep images in the sub-arcsecond seeing conditions from the whole 1 Jy sample (Stickel et al. 1991) of BL Lac objects. The aims of this study are: 1. to search for very close companions to the BL Lacs, 2. to study the large scale galaxy clustering around the BL Lacs and 3. to study the BL Lac hosts themselves.

scholarly journals Stellar mass to halo mass relation from galaxy clustering in VUDS: a high star formation efficiency atz≃ 3

2015 ◽  
Vol 576 ◽  
pp. L7 ◽  
Author(s):  
A. Durkalec ◽  
O. Le Fèvre ◽  
S. de la Torre ◽  
A. Pollo ◽  
P. Cassata ◽  
...  
Keyword(s):  
Star Formation ◽  
Stellar Mass ◽  
Mass Relation ◽  
Galaxy Clustering ◽  
Formation Efficiency

scholarly journals Anisotropy of the Microwave Background and Biased Galaxy Formation

1988 ◽  
Vol 130 ◽  
pp. 43-50
Author(s):  
Nick Kaiser
Keyword(s):  
Galaxy Formation ◽  
Large Scale ◽  
Microwave Background ◽  
Galaxy Clustering ◽  
Clear View ◽  
Hot Gas ◽  
Density Perturbations ◽  
The Universe ◽  
Theoretical Developments

Fluctuations in the microwave background will have been imprinted at z ≃ 1000, when the photons and the plasma decoupled. On angular scales greater than a few degrees these fluctuations provide a clear view of any primordial density perturbations, and therefore a clean test of theories which invoke such fluctuations from which to form the structure we see in the universe. On smaller angular scales the predictions are less certain: reionization of the gas may modify the spectrum of the primordial fluctuations, and secondary fluctuations may be generated.Here I shall review some recent theoretical developments. A brief survey is made of the currently popular theories for the primordial perturbations, with emphasis on the predictions for large scale anisotropy. One major uncetainty in the predictions arises from the normalisation of the fluctuations to e.g. galaxy clustering, and much attention is given to the question of ‘biased’ galaxy formation. The effect of reionization on the primordial fluctuations is discussed, as is the anisotropy generated from scattering off hot gas in clusters, groups and galaxies.

scholarly journals PRIMUS: GALAXY CLUSTERING AS A FUNCTION OF LUMINOSITY AND COLOR AT 0.2

2014 ◽  
Vol 784 (2) ◽  
pp. 128 ◽  
Author(s):  
Ramin A. Skibba ◽  
M. Stephen M. Smith ◽  
Alison L. Coil ◽  
John Moustakas ◽  
James Aird ◽  
...  
Keyword(s):  
Galaxy Clustering

scholarly journals The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: single-probe measurements from DR12 galaxy clustering – towards an accurate model

2017 ◽  
Vol 471 (2) ◽  
pp. 2370-2390 ◽  
Author(s):  
Chia-Hsun Chuang ◽  
Marcos Pellejero-Ibanez ◽  
Sergio Rodríguez-Torres ◽  
Ashley J. Ross ◽  
Gong-bo Zhao ◽  
...  
Keyword(s):  
Galaxy Clustering ◽  
Accurate Model ◽  
Single Probe ◽  
Probe Measurements
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