Results 41 to 50 of about 64,304 (283)

Bayesian redshift-space distortions correction from galaxy redshift surveys [PDF]

Monthly Notices of the Royal Astronomical Society: Letters, 2016
AbstractWe present a Bayesian reconstruction method which maps a galaxy distribution from redshift- to real-space inferring the distances of the individual galaxies. The method is based on sampling density fields assuming a lognormal prior with a likelihood modelling non-linear stochastic bias.
Kitaura, Francisco-Shu, Ata, M., Angulo, R.E., Chuang, C.H., Rodríguez-Torres, S., Monteagudo, C.H., Prada, Francisco, Yepes, G.   +7 more
openaire   +3 more sources

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

Recovering the real-space correlation function from photometric redshift surveys

, 2008
Measurements of clustering in large-scale imaging surveys that make use of photometric redshifts depend on the uncertainties in the redshift determination.
Alberto Fernández-Soto, Baum, Benítez, Benítez, Blake, Coe, Connolly, Davis, Enn Saar, Fernández-Soto, Fernández-Soto, Fernández-Soto, Hawkins, Ilbert, Ivan Suhhonenko, Koo, Landy, Madgwick, Martinez, Martínez, Moles, Pablo Arnalte-Mur, Padmanabhan, Pekka Heinämäki, Phleps, Saunders, Stoyan, Vicent J. Martínez, Wolf, Zehavi, Zehavi, Zehavi   +31 more
core   +1 more source

Object Classification in Astronomical Multi-Color Surveys [PDF]

, 2000
We present a photometric method for identifying stars, galaxies and quasars in multi-color surveys, which uses a library of >65000 color templates. The method aims for extracting the information content of object colors in a statistically correct way and
Abramowitz, Bahcall, Baum, Boyle, C. Wolf, Francis, Gunn, H.-J. Röser, Hartwick, K. Meisenheimer, Kinney, Lanzetta, Metcalfe, Oke, Phleps, Pickles, Schmidt, Steidel, Storrie-Lombardi, Warren, Wolf, Wolf, Wolf, York   +23 more
core   +2 more sources

The Unexplored Redshift Survey [PDF]

Publications of the Astronomical Society of the Pacific, 2001
Redshift surveys remain an important constraint on cosmological parameters and a key to characterizing the nature and evolution of the large‐scale distribution of galaxies. I discuss redshift surveys as a route to exploration of other issues associated with large‐scale structure including the low surface brightness universe and the links between star ...
openaire   +1 more source

Local Redshift Surveys and Galaxy Evolution [PDF]

, 2006
We present observations of galaxy environmental dependencies using data from the 2dF Galaxy Redshift Survey. From a combined analysis of the luminosity function, Butcher-Oemler effect and trends in H$ $ line strengths we find support for a model where galaxy properties are mainly set by initial conditions at the time of their formation.
De Propris, R., Colless, M., Croton, D.
openaire   +3 more sources

Stoma‐Shell Nanoarchitecture for Enhanced Plasma Confinement Catalysis in Synthesis of Ethanol from CO2

Advanced Functional Materials, EarlyView.
High‐energy electron impact in plasma catalysis often causes excessive dissociation of active intermediates, limiting C2+ product selectivity. To address this challenge, a bio‐inspired stoma‐shell nanoarchitecture is designed to decouple electron impact from catalytic reaction zones.
Nan Zou, Zhiliang Dong, Tsun‐Kong Sham, Xiaonian Li, Ying Zheng, Ting Qiu   +5 more
wiley   +1 more source

The effects of spatial resolution on Integral Field Spectrograph surveys at different redshifts. The CALIFA perspective [PDF]

, 2013
Over the past decade, 3D optical spectroscopy has become the preferred tool for understanding the properties of galaxies and is now increasingly used to carry out galaxy surveys. Low redshift surveys include SAURON, DiskMass, ATLAS3D, PINGS and VENGA. At
Aguerri, J. A. L., Bekeraite, S., Bland-Hawthorn, J., Bomans, D. J., de Lorenzo-Caceres, A., del Olmo, A., Falcon-Barroso, J., Galbany, L., García-Lorenzo, B., Husemann, B., Iglesias-Paramo, J., Kehrig, C., Kennicutt, R. C., Lopez-Sanchez, A. R., Marino, R. A., Marmol-Queralto, E., Marquez, I., Mast, D., Mendez-Abreu, J., Monreal-Ibero, A., Papaderos, P., Relano, M., Rosales-Ortega, F. F., Sanchez, S. F., van de Ven, G., Vílchez, J. M., Walcher, C. J., Wild, V., Wisotzki, L., Ziegler, B.   +29 more
core   +4 more sources

2dF QSO Redshift Survey

, 2000
With approximately 6000 QSO redshifts,the 2dF QSO redshift survey is already the biggest complete QSO survey. The aim for the survey is to have 25000 QSO redshifts, providing an order of magnitude increase in QSO clustering statistics. We first describe the observational parameters of the 2dF QSO survey.
Shanks, T, Boyle, B, Croom, S, Loaring, N, Miller, L, Smith, R   +5 more
openaire   +3 more sources

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source