7,990 datasets found

Keywords: visible astronomy

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  • The gamma/optical flares of 4FGL-DR3 blazars

    Using blazar light curves from the optical All-Sky Automated Survey for Supernovae (ASAS-SN) and the {gamma}-ray Fermi-LAT telescope, we performed the most extensive statistical...
  • ~100 Gravitationally confirmed lensed quasars

    We report the spectroscopic follow-up of 175 lensed quasar candidates selected using Gaia Data Release 2 observations following Paper III of this series. Systems include 86...
  • SOUX AGN sample with SDSS-XMM-Newton surveys

    We assemble a sample of 696 type 1 active galactic nuclei (AGN) up to a redshift of z = 2.5, all of which have an SDSS spectrum containing at least one broad emission line...
  • 301 L & T-type brown dwarfs archival spectra

    We fit archival near-IR spectra of ~300 brown dwarfs with atmosphere models from the Sonora and Phoenix groups. Using the parameters of the best- fit models as estimates for the...
  • Spectra of 18 ssrAp star candidates

    The rotation periods of Ap stars range over five to six orders of magnitude. The origin of their differentiation remains unknown. We carry out a systematic study of the longest...
  • Compact groups of galaxies in GAMA

    Over the years, several compact group catalogues have been constructed using different methods, but most of them are not deep enough to go beyond the very local universe with a...
  • Extra-physics in ASAS-SN EBs and variables

    Detached eclipsing binaries are the primary tool used to measure precise masses and radii of stars. In our previous paper estimating the parameters of more than 30000 detached...
  • Asteroseismology of 19000 TESS red giants

    Transiting Exoplanet Survey Satellite (TESS) has produced long-term photometry for millions of stars across the sky. In this work, we present an asteroseismic catalogue of 19151...
  • Radio sources at 6~>z~>4 with ASKAP in G23

    Using the Lyman Dropout technique, we identify 148 candidate radio sources at z ~> 4-7 from the 887.5 MHz Australian Square Kilometre Array Pathfinder (ASKAP) observations of...
  • Galaxy clusters with PzWav on S-PLUS DR1

    We present a catalogue of 4499 groups and clusters of galaxies from the first data release of the multi-filter (5 broad, 7 narrow) Southern Photometric Local Universe Survey...
  • Variables and sdBs stars in NEH/SEH TESS FFI III

    We present an update on the variable star survey performed on the TESS 30 min Full Frame Image (FFI) data reported by our first two papers in this series. This update includes a...
  • TESS flare frequency distributions with CHEOPS

    Stellar flares are intense bursts of radiation caused by magnetic reconnection events on active stars. They are especially frequent on M dwarfs, where they can significantly...
  • Abundances for 60 Classical Cepheids (DCEPs)

    Classical Cepheids (DCEPs) are among the most important distance calibrators thanks to the correlation between their period and luminosity (PL relation), and play a crucial role...
  • KiDS-450: Weak lensing shear measurements

    We present cosmological parameter constraints from a tomographic weak gravitational lensing analysis of ~450deg^2^ of imaging data from the Kilo Degree Survey (KiDS). For a flat...
  • Gaia Focused Product Release (Gaia FPR)

    The Gaia Focused Product Release builds partly on the data period that went into Gaia's Data Release 3 but in case of the Solar System objects extends the stretch of time that...
  • Gaia DR3 Part 5. Solar System

    Gaia Data Release 3 (Gaia DR3) will be released on 13 June 2022. The Gaia DR3 catalogue builds upon the Early Data Release 3 (released on 3 December 2020) and combines, for the...
  • Gaia DR3 Part 4. Variability

    Gaia Data Release 3 (Gaia DR3) will be released on 13 June 2022. The Gaia DR3 catalogue builds upon the Early Data Release 3 (released on 3 December 2020) and combines, for the...
  • Gaia DR3 Part 3. Non-single stars

    Gaia Data Release 3 (Gaia DR3) will be released on 13 June 2022. The Gaia DR3 catalogue builds upon the Early Data Release 3 (released on 3 December 2020) and combines, for the...
  • Gaia DR3 Part 2. Extra-galactic

    Gaia Data Release 3 (Gaia DR3) will be released on 13 June 2022. The Gaia DR3 catalogue builds upon the Early Data Release 3 (released on 3 December 2020) and combines, for the...
  • Gaia DR3 Part 1. Main source

    Gaia Data Release 3 (Gaia DR3) will be released on 13 June 2022. The Gaia DR3 catalogue builds upon the Early Data Release 3 (released on 3 December 2020) and combines, for the...
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