Results 81 to 90 of about 4,188,611 (364)

Hubble Space Telescope imaging of the CFRS and LDSS redshift surveys—IV. Influence of mergers in the evolution of faint field galaxies from z∼1 [PDF]

open access: yes, 1999
ABSTRA C T Hubble Space Telescope images of a sample of 285 galaxies with measured redshifts from the Canada‐France Redshift Survey (CFRS) and Autofib‐Low Dispersion Spectrograph Survey (LDSS) redshift surveys are analysed to derive the evolution of the ...
O. Fèvre   +11 more
semanticscholar   +1 more source

The 2MASS Redshift Survey in the Zone of Avoidance [PDF]

open access: yesThe Astrophysical Journal Supplement Series, 2019
Abstract The Two Micron All-Sky Survey (2MASS) Redshift Survey was started two decades ago with the goal of mapping the three-dimensional distribution of an all-sky flux-limited (K s < 11.75 mag) sample of ∼45,000 galaxies.
Lucas M. Macri   +9 more
openaire   +5 more sources

Selection of ULIRGs in Infrared and Submm Surveys [PDF]

open access: yes, 2010
We examine the selection characteristics of infrared and sub-mm surveys with IRAS, Spitzer, BLAST, Herschel and SCUBA and identify the range of dust temperatures these surveys are sensitive to, for galaxies in the ULIRG luminosity range ...
Blain   +71 more
core   +3 more sources

All‐Cellulose‐Based Photonic Glitters

open access: yesAdvanced Functional Materials, EarlyView.
Uniform, disc‐shaped photonic CNC glitters with adjustable structural colors and diameters are fabricated on hydrophilic ethyl cellulose films using electrospray deposition. By employing patterned ethyl cellulose films with pre‐designed hydrophilic regions, photonic patterns can be created with these all‐cellulose‐based glitters, demonstrating their ...
Ting Wang   +5 more
wiley   +1 more source

Probing dark energy with future redshift surveys: a comparison of emission line and broad‐band selection in the near‐infrared [PDF]

open access: yes, 2009
Future galaxy surveys will map the galaxy distribution in the redshift interval 0.5 -15.4 and a flux limit of at least log(F H α[erg s -1 ] cm -2 ]) = -16 is required for an Hα sample to become competitive in effective volume.
Á. Orsi   +5 more
semanticscholar   +1 more source

The AAO 2DF QSO Redshift Survey [PDF]

open access: yesSymposium - International Astronomical Union, 1999
The study of large-scale structure through QSO clustering provides a potentially powerful route to determining the fundamental cosmological parameters of the Universe (see Croom & Shanks 1996). Unfortunately, previous QSO clustering studies have been limited by the relatively small sizes of homogeneous QSO catalogues that have been available ...
Boyle   +4 more
openaire   +4 more sources

The Nonlinear Redshift Space Power Spectrum: Omega from Redshift Surveys

open access: yes, 1995
We examine the anisotropies in the power spectrum by the mapping of real to redshift space. Using the Zel'dovich approximation, we obtain an analytic expression for the nonlinear redshift space power spectrum in the distant observer limit.
Fisher, K. B., Nusser, A.
core   +1 more source

Object Classification in Astronomical Multi-Color Surveys [PDF]

open access: yes, 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   +23 more
core   +2 more sources

5,11‐Di(thiophen‐2‐yl)Tetracene: A Novel Tetracene Derivative for Efficient Singlet Fission with Enhanced Physical and Chemical Stability in Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
In this work, a new tetracene derivative, 5,11‐di(thiophen‐2‐yl)tetracene (2T‐Tc) is introduced, exhibiting enhanced physical and chemical stability, and retaining favorable singlet fission kinetics with near unity triplet pair yield in thin films.
Jieun Lee   +11 more
wiley   +1 more source

DESI z ≳ 5 Quasar Survey. I. A First Sample of 400 New Quasars at z ∼ 4.7–6.6

open access: yesThe Astrophysical Journal Supplement Series, 2023
We report the first results of a high-redshift ( z ≳ 5) quasar survey using the Dark Energy Spectroscopic Instrument (DESI). As a DESI secondary target program, this survey is designed to carry out a systematic search and investigation of quasars at 4.8 <
Jinyi Yang   +41 more
doaj   +1 more source

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