Results 121 to 130 of about 797,848 (382)

Star Formation Histories with Gaia: The Galaxy and Beyond

Open Astronomy, 2003
ESA’s Gaia mission will provide accurate astrometric, photometric and spectroscopic data for millions of stars in the Galaxy and beyond. We discuss the prospects of using this vast amount of astrophysical information for understanding star formation ...
Kučinskas A., Lindegren L., Tanabé T., Vansevičius Savanorių   +3 more
doaj   +1 more source

On Combining Lensing Shear Information from Multiple Filters

, 2007
We consider the possible gain in the measurement of lensing shear from imaging data in multiple filters. Galaxy shapes may differ significantly across filters, so that the same galaxy offers multiple samples of the shear.
Bernstein G M, Bhuvnesh Jain, Fischer P, Mike Jarvis, Nakajima R, Sheldon E S   +5 more
core   +1 more source

INTERACTIONS OF GALAXIES IN THE GALAXY CLUSTER ENVIRONMENT [PDF]

The Astrophysical Journal, 2009
We study the dependence of galaxy properties on the clustercentric radius and the environment attributed to the nearest neighbor galaxy using the SDSS galaxies associated with the Abell galaxy clusters. We find that there exists a characteristic scale where the properties of galaxies suddenly start to depend on the clustercentric radius at fixed ...
Changbom Park, Ho Seong Hwang
openaire   +3 more sources

Genomic Variation Underpins Genetic Divergence and Differing Salt Resilience in Sesbania bispinosa

Advanced Science, EarlyView.
Sesbania, a leguminous halophyte, thrives in saline soils. Comparative genomics reveals key genomic variations—particularly chromosomal inversions—are identified as contributors to population differentiation and salt resilience. These findings advance the understanding of genomic variation driving evolution and phenotypic differentiation and offer ...
Gai Huang, Xiaofei Wang, Chengli Liu, Kaixuan He, Xiu‐Li Hou, Haofei Luo, Shuaibin Zhang, Changqing You, Yajun Jia, Fuqiang Wang, Xianwei Song, Guodao Liu, Xian Deng, Xiaofeng Cao   +13 more
wiley   +1 more source

RELATION OF DAILY PERIODS OF VLF RADIATION WITH X-RAY SOURCES

Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2016
Spectral analysis of electromagnetic noise radiation in the VLF range at three fixed frequencies for the period from 1997 to 2015 have been carried out. Periodograms with diurnal components associated with the periods of the Earth rotation relatively the
Druzhin, G.I., Stasiy, I.E.
doaj   +1 more source

Cosmological Constraints from a Combination of Galaxy Clustering and Lensing -- III. Application to SDSS Data

, 2012
We simultaneously constrain cosmology and galaxy bias using measurements of galaxy abundances, galaxy clustering and galaxy-galaxy lensing taken from the Sloan Digital Sky Survey.
Abazajian, Abazajian, Adelman-McCarthy, Astier, Balbi, Baldauf, Beers, Benjamin, Benson, Berlind, Biviano, Blanton, Blanton, Boylan-Kolchin, Bullock, Burles, Busha, Cacciato, Cacciato, Carlberg, Chen, Cole, Colless, Cooray, Cooray, Dekel, Desjacques, Diemand, Dunkley, Eisenstein, Eke, Eke, Frank C. van den Bosch, Freedman, Fu, Gao, Giannantonio, Giocoli, Gott, Guo, Guzik, Guzzo, Hamann, Hastings, Ho, Houjun Mo, Jing, Kaiser, Komatsu, Komatsu, Koopmans, Kowalski, Kravtsov, Lange, Lares, Li, Lin, Lin, Lorrimer, Ma, Macciò, Mandelbaum, Mandelbaum, Marcello Cacciato, Masjedi, Mather, McDonald, Metropolis, Mo, Mo, More, More, More, More, More, Moster, Nagai, Navarro, Netterfield, Neyman, Norberg, Norberg, Norberg, Norberg, O'Meara, Oguri, Padmanabhan, Padmanabhan, Park, Peacock, Percival, Perlmutter, Porciani, Pryke, Reichardt, Reid, Riess, Rozo, Ruhl, Sales, Sandage, Scoccimarro, Scott, Seljak, Seljak, Sheldon, Skibba, Smith, Spergel, Spergel, Springel, Surhud More, Sánchez, Tal, Tal, Tegmark, Tegmark, Tinker, Tinker, Tinker, Tinker, Tinker, van den Bosch, van den Bosch, van den Bosch, van den Bosch, van den Bosch, van der Marel, van Leeuwen, Viel, Vikhlinin, Wang, Wang, Watson, Watson, Xiaohu Yang, Yang, Yang, Yang, Yang, Yang, Yang, Yoo, Yoo, York, Zehavi, Zehavi, Zehavi, Zhao, Zheng, Zheng, Zheng   +151 more
core   +1 more source

Modelling feedback from stars and black holes in galaxy mergers [PDF]

, 2004
We describe techniques for incorporating feedback from star formation and black hole (BH) accretion into simulations of isolated and merging galaxies. At present, the details of these processes cannot be resolved in simulations on galactic scales.
V. Springel, T. Matteo, L. Hernquist
semanticscholar   +1 more source

The Anatomy of Galaxies

, 2016
Just after WWII Astronomy started to live its "Golden Age", not differently to many other sciences and human activities, especially in the west side countries. The improved resolution of telescopes and the appearance of new efficient light detectors (e.g. CCDs in the middle eighty) greatly impacted the extragalactic researches.
D'ONOFRIO, MAURO, RAMPAZZO, ROBERTO, ZAGGIA, SIMONE, Longair, Malcolm S., Ferrarese, Laura, Marziani, Paola, Sulentic, Jack W., van der Kruit, Pieter C., Laurikainen, Eija, Elmegreen, Debra M., Combes, Françoise, Bertin, Giuseppe, Fabbiano, Giuseppina, Giovanelli, Riccardo, Calzetti, Daniela, Moss, David L., Matteucci, Francesca, Djorgovski, Stanislav George, Fraix Burnet, Didier, Graham, Alister W. M.c.K., Tully, Brent R.   +20 more
openaire   +5 more sources

Photovoltaic and Photomultiplication Dual‐Mode Near‐Infrared Organic Detectors with Large Dynamic Range for Intensive and Faint Light Sensing

Advanced Science, EarlyView.
A photovoltaic/photomultiplication dual‐mode organic photodetector is developed by integrating two different organic bulk‐heterojunctions, one introduces the photovoltaic effect, and the other triggers photomultiplication charge generation in the stacked device at different voltage polarities.
Xin Hu, Ning Li, Mingyang Ren, Yifan Ji, Hongmei Guo, Qian Chen, Xiubao Sui   +6 more
wiley   +1 more source

Environmental dependence of stellar velocity dispersion in the Main galaxy sample of SDSS DR10

Open Physics, 2014
The aim of this work is to examine the environmental dependence of stellar velocity dispersion in local galaxies. In studies that likely suffer from the radial selection effect, one has a preference for the use of volumelimited samples.
Deng Xin-Fa
doaj   +1 more source