The study of ultraluminous X-ray sources (ULXs) has changed dramatically over the last
decade. In this review we first describe the most important observations of ULXs in various …

Interacting binaries in which a white dwarf accretes material from a companion—cataclysmic
variables (CVs) in which the mass donor is a Roche-lobe filling star on or near the main …

This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky
Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the …

The eROSITA telescope array aboard the Spektrum Roentgen Gamma (SRG) satellite
began surveying the sky in December 2019, with the aim of producing all-sky X-ray source …

The Sloan Digital Sky Surveys (SDSS) have been almost continuously observing the skies
for over 20 yr, since the project began with a first phase in 1998 (SDSS-I; York et al. 2000) …

We present the final Sloan Digital Sky Survey IV (SDSS-IV) quasar catalog from Data
Release 16 of the extended Baryon Oscillation Spectroscopic Survey (eBOSS). This catalog …

Context. Sky surveys produce enormous quantities of data on extensive regions of the sky.
The easiest way to access this information is through catalogues of standardised data …

The concordance model (Λ cold dark matter (Λ CDM) model, where Λ is the cosmological
constant) reproduces the main current cosmological observations,,–assuming the validity of …

ABSTRACT Code Investigating GALaxy Emission (cigale) is a powerful multiwavelength
spectral energy distribution (SED) fitting code for extragalactic studies. However, the current …

We present the set of deep Neutron Star Interior Composition Explorer (NICER) X-ray timing
observations of the nearby rotation-powered millisecond pulsars PSRs J0437− 4715 …