Results 11 to 20 of about 4,646,519 (213)

The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library [PDF]

open access: yesAstrophysical Journal Supplement Series, 2018
Twenty years have passed since first light for the Sloan Digital Sky Survey (SDSS). Here, we release data taken by the fourth phase of SDSS (SDSS-IV) across its first three years of operation (2014 July–2017 July). This is the third data release for SDSS-
D. Aguado   +232 more
semanticscholar   +1 more source

Real-time data mining of massive data streams from synoptic sky surveys [PDF]

open access: yesFuture generations computer systems, 2016
The nature of scientific and technological data collection is evolving rapidly: data volumes and rates grow exponentially, with increasing complexity and information content, and there has been a transition from static data sets to data streams that must
S. Djorgovski   +6 more
semanticscholar   +1 more source

Multiscale Stamps for Real-time Classification of Alert Streams

open access: yesThe Astrophysical Journal Letters, 2023
In recent years, automatic classifiers of image cutouts (also called “stamps”) have been shown to be key for fast supernova discovery. The Vera C.
Ignacio Reyes-Jainaga   +17 more
doaj   +1 more source

The 16th Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra

open access: yes, 2020
This paper documents the 16th data release (DR16) from the Sloan Digital Sky Surveys (SDSS), the fourth and penultimate from the fourth phase (SDSS-IV). This is the first release of data from the Southern Hemisphere survey of the Apache Point Observatory
Romina Ahumada   +311 more
semanticscholar   +1 more source

Clusters of galaxies identified from all sky surveys of 2MASS, WISE and SuperCOSMOS [PDF]

open access: yes, 2017
We identify 47,600 clusters of galaxies from photometric data of Two Micron All Sky Survey (2MASS), Wide-field Infrared Survey Explorer (WISE) and SuperCOSMOS, among which 26,125 clusters are recognized for the first time and mostly in the sky outside ...
Z. Wen, Jin Han, Fan Yang
semanticscholar   +1 more source

Overview of the DESI Legacy Imaging Surveys [PDF]

open access: yesAstronomical Journal, 2018
The DESI Legacy Imaging Surveys (http://legacysurvey.org/) are a combination of three public projects (the Dark Energy Camera Legacy Survey, the Beijing–Arizona Sky Survey, and the Mayall z-band Legacy Survey) that will jointly image ≈14,000 deg2 of the ...
A. Dey   +158 more
semanticscholar   +1 more source

Full-sky Gravitational Lensing Simulation for Large-area Galaxy Surveys and Cosmic Microwave Background Experiments [PDF]

open access: yes, 2017
We present 108 full-sky gravitational lensing simulation data sets generated by performing multiple-lens plane ray-tracing through high-resolution cosmological N-body simulations. The data sets include full-sky convergence and shear maps from redshifts z
R. Takahashi   +6 more
semanticscholar   +1 more source

Supernovae Detection with Fully Convolutional One-Stage Framework

open access: yesSensors, 2021
A series of sky surveys were launched in search of supernovae and generated a tremendous amount of data, which pushed astronomy into a new era of big data.
Kai Yin   +4 more
doaj   +1 more source

The VLA Low‐frequency Sky Survey [PDF]

open access: yesAstronomische Nachrichten, 2006
AbstractWe present an overview of the ongoing VLA Low‐frequency Sky Survey (VLSS, formerly known as 4MASS). The VLSS will map an area of 9.1 sr covering the entire sky above a declination of –30 degrees (or 75% of the full sky), at a frequency of 74 MHz (4 meter wavelength) with an unprecedented combination of sensitivity and resolution at this low ...
Cohen, A. S.   +7 more
openaire   +3 more sources

Modeling and Simulation of Sky Survey

open access: yesApplied Sciences, 2021
Sky surveys with wide and deep field are the key direction of international astronomy research for the next decades. It is worthwhile to study how to design a sky survey algorithm to obtain the maximum scientific output in a limited period of observation.
Kun Hu   +4 more
doaj   +1 more source

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