Results 71 to 80 of about 47,826 (245)
Galaxy properties and photometric redshifts [PDF]
Proceedings of the International Astronomical Union, 2005 We present GALEV evolutionary synthesis models for S imple S tellar P opulations ( SSP s = single burst, single metallicity) like star clusters or galaxy pixels and for galaxies of various types on the basis of their respective typical star formation histories, ranging from exponentially declining on a timescale of 1Gyr for the classical elliptical ...
Uta Fritze – v. Alvensleben +2 more
openaire +1 more source
A Survey of Galaxy Pairs in the SDSS Photometric Images based on Faster-RCNN
The Astronomical JournalGalaxy pairs hold significant importance in understanding the evolution of galaxies, and the extensive search for a large sample of galaxy pairs is meaningful.
Chen-hui Shi +7 more
doaj +1 more source
Small Methods, Volume 9, Issue 10, October 1, 2025.This work introduces a multiplexed imaging platform that integrates nanoplasmonic sensing with fluorescence microscopy for concomitant monitoring of extraspheroid secretions and intraspheroid features over extended periods with spatiotemporal resolution.
Saeid Ansaryan +7 more
wiley +1 more source
A UNIFIED FRAMEWORK FOR PHOTOMETRIC REDSHIFTS [PDF]
The Astrophysical Journal, 2009 9 pages, 2 figures, accepted to the ...
openaire +2 more sources
Bayesian inference from photometric redshift surveys [PDF]
, 2011 We show how to enhance the redshift accuracy of surveys consisting of tracers with highly uncertain positions along the line of sight. Photometric surveys with redshift uncertainty delta_z ~ 0.03 can yield final redshift uncertainties of delta_z_f ~ 0 ...
Jasche, Jens, Wandelt, Benjamin D.
core +2 more sources
Advanced Science, Volume 12, Issue 33, September 4, 2025.Spectral tailoring is achieved in the phosphor Na0.6Rb0.4BaB9O15 (NRBBO): Eu2+ using chemical pressure. The gradual decrease of FWHM under chemical pressure of Rb+ ions. WLED based on NRBBO: 0.11Eu2+ have a color gamut of 106% NTSC. The excellent laser excitation properties of NRBBO: 0.11Eu2+ give it great potential as a green phosphor for laser ...
Runtian Kang +3 more
wiley +1 more source
PHOTOMETRIC REDSHIFTS FOR QUASARS IN MULTI-BAND SURVEYS [PDF]
The Astrophysical Journal, 2013 MLPQNA stands for Multi Layer Perceptron with Quasi Newton Algorithm and it is a machine learning method which can be used to cope with regression and classification problems on complex and massive data sets. In this paper we give the formal description of the method and present the results of its application to the evaluation of photometric redshifts ...
Brescia M. +4 more
openaire +8 more sources
The Impact of Host-galaxy Properties on Supernova Classification with Hierarchical Labels
The Astrophysical Journal Supplement SeriesWith the advent of the Vera C. Rubin Observatory, the discovery rate of supernovae (SNe) will surpass the rate of SNe with real time spectroscopic follow-up by 3 orders of magnitude.
V. Ashley Villar +3 more
doaj +1 more source
Measuring Galaxy Environments with Deep Redshift Surveys
, 2005 We study the applicability of several galaxy environment measures (n^th-nearest-neighbor distance, counts in an aperture, and Voronoi volume) within deep redshift surveys.
Brian F. Gerke +6 more
core +1 more source
Small, Volume 21, Issue 37, September 18, 2025.This work presents the first unified synthesis and analysis of the full (Sb,Bi)(S,Se)(Br,I)chalcohalide family. It explores their structural, electronic, andoptoelectronic properties, highlighting anisotropic behaviours, and demonstratingpotential in photovoltaics (PV) and photocatalysis (PC), paving the way foreco‐friendly energy applications ...
Ivan Caño +26 more
wiley +1 more source