Worldwide variations in artificial skyglow

Despite constituting a widespread and significant environmental change, understanding of artificial nighttime skyglow is extremely limited. Until now, published monitoring studies have been local or regional in scope, and typically of short duration. In this first major international compilation of monitoring data we answer several key questions about skyglow properties. Skyglow is observed to vary over four orders of magnitude, a range hundreds of times larger than was the case before artificial light. Nearly all of the study sites were polluted by artificial light. A non-linear relationship is observed between the sky brightness on clear and overcast nights, with a change in behavior near the rural to urban landuse transition. Overcast skies ranged from a third darker to almost 18 times brighter than clear. Clear sky radiances estimated by the World Atlas of Artificial Night Sky Brightness were found to be overestimated by ~25%; our dataset will play an important role in the calibration and ground truthing of future skyglow models. Most of the brightly lit sites darkened as the night progressed, typically by ~5% per hour. The great variation in skyglow radiance observed from site-to-site and with changing meteorological conditions underlines the need for a long-term international monitoring program

Chemo-kinematic properties of Aquarius

VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'Kinematical and metallicity properties of the Aquarius dwarf from FORS2 MXU spectroscopy.' (bibcode: 2020A&A...634A..10H

CasA, CygA, TauA, VirA 30MHz & 77MHz models

VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'Cassiopeia A, Cygnus A, Taurus A, and Virgo A at ultra-low radio frequencies.' (bibcode: 2020A&A...635A.150D

Stellar kinematics in CALIFA survey

VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'Stellar kinematics across the Hubble sequence in the CALIFA survey: general properties and aperture corrections.

CasA, CygA, TauA, VirA 30MHz & 77MHz models

VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'Cassiopeia A, Cygnus A, Taurus A, and Virgo A at ultra-low radio frequencies.' (bibcode: 2020A&A...635A.150D

LOFAR Long-Baseline Calibrator Survey. II.

VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'Sub-arcsecond imaging with the International LOFAR Telescope. II. Completion of the LOFAR Long-Baseline Calibrator Survey.' (bibcode: 2022A&A...658A...2J

Cas A LOFAR and VLA images

VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'Low frequency radio absorption in Cassiopeia A.' (bibcode: 2018A&A...612A.110A

CALIFA galaxies stellar angular momentum

VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'The CALIFA view on stellar angular momentum across the Hubble sequence.' (bibcode: 2019A&A...632A..59F

LOFAR Bootes and 3C295 field sources

The Bootes and 3C 295 fields were simultaneously observed on 2012 April 12 as part of a multi-beam observation with the LOFAR LBA stations. The idea behind the multi-beam setup is that we use the 3C 295 observations as a calibrator field to transfer the gain amplitudes to the (target) Bootes field. The total integration time on both fields was 10.25 hr. Complete frequency coverage was obtained between 54 and 70 MHz for both fields, while non-contiguous frequency coverage was obtained between 30 and 54 MHz for the 3C 295 only. All four correlation products were recorded. By default, the frequency band was divided into sub-bands, each 195.3125 kHz wide. Each sub-band was further divided in 64 channels and the integration time was 1 s

Pulse profiles of 100 radio pulsars

VizieR online Data Catalogue associated with article published in journal Astronomy & Astrophysics with title 'Wide-band, low-frequency pulse profiles of 100 radio pulsars with LOFAR.' (bibcode: 2016A&A...586A..92P