Deep learning approach for classifying, detecting and predicting photometric redshifts of quasars in the Sloan Digital Sky Survey Stripe 82
Sign Up to like & getrecommendations! Published in 2018 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201731106
Abstract: We have applied a convolutional neural network (CNN) to classify and detect quasars in the Sloan Digital Sky Survey Stripe 82 and also to predict the photometric redshifts of quasars. The network takes the variability… read more here.
Keywords: sky survey; sloan digital; survey; redshifts quasars ... See more keywords
Fabrication of large UV transmission blazed gratings for slitless spectral sky survey
Sign Up to like & getrecommendations! Published in 2021 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/21/12/307
Abstract: Slitless spectral sky survey is a critical direction of international astronomical research. Compared with ground-based sky survey, space-based sky survey can achieve full-band observation, and its imaging quality and resolution capability are restricted by the… read more here.
Keywords: survey; blazed gratings; slitless spectral; spectral sky ... See more keywords
Fundamental differences in the radio properties of red and blue quasars: insight from the LOFAR Two-metre Sky Survey (LoTSS)
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa866
Abstract: Red quasi-stellar objects (QSOs) are a subset of the luminous end of the cosmic population of active galactic nuclei (AGN), most of which are reddened by intervening dust along the line-of-sight towards their central engines.… read more here.
Keywords: sky survey; radio; red qsos; qsos ... See more keywords
Deep co-added sky from Catalina Sky Survey images
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab2246
Abstract: A number of synoptic sky surveys are underway or being planned. Typically, they are done with small telescopes and relatively short exposure times. A search for transient or variable sources involves comparison with deeper baseline… read more here.
Keywords: deep added; sky survey; sky; survey ... See more keywords
The C-Band All-Sky Survey (C-BASS): Template fitting of diffuse galactic microwave emission in the northern sky
Sign Up to like & getrecommendations! Published in 2022 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stac1210
Abstract: The C-Band All-Sky Survey (C-BASS) has observed the Galaxy at 4.76 GHz with an angular resolution of 0${_{.}^{\circ}}$73 full-width half-maximum, and detected Galactic synchrotron emission with high signal-to-noise ratio over the entire northern sky (δ >… read more here.
Keywords: sky; synchrotron; band sky; bass ... See more keywords
The C-Band all-sky survey (C-BASS): New constraints on the integrated radio spectrum of M 31
Sign Up to like & getrecommendations! Published in 2023 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stad1539
Abstract: The Andromeda galaxy (M 31) is our closest neighbouring spiral galaxy, making it an ideal target for studying the physics of the interstellar medium in a galaxy very similar to our own. Using new observations… read more here.
Keywords: band sky; sky survey; new constraints; survey bass ... See more keywords
The C-Band All-Sky Survey (C-BASS): design and capabilities
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty1956
Abstract: The C-Band All-Sky Survey (C-BASS) is an all-sky full-polarization survey at a frequency of 5 GHz, designed to provide complementary data to the all-sky surveys of WMAP and Planck, and future CMB B-mode polarization imaging surveys.… read more here.
Keywords: sky survey; sky; band sky; survey bass ... See more keywords
New candidates to polar-ring galaxies from the Sloan Digital Sky Survey
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty3209
Abstract: Polar-ring galaxies (PRGs) are fascinating systems in which the central object (typically, an early-type galaxy) is encircled by a large-scale ring of stars, gas, and dust with almost perpendicular spin. PRGs are rare objects and… read more here.
Keywords: sky survey; sloan digital; digital sky; polar ring ... See more keywords
The Sloan Digital Sky Survey extended point spread functions
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz3111
Abstract: A robust and extended characterization of the point spread function (PSF) is crucial to extract the photometric information produced by deep imaging surveys. Here, we present the extended PSFs of the Sloan Digital Sky Survey… read more here.
Keywords: sky survey; sloan digital; survey; digital sky ... See more keywords