Axions are some of the best motivated particles beyond the Standard Model. We show how
the attractive self-interactions of dark matter (DM) axions over a broad range of masses, from …

Access to microarcsecond astrometry is now routine in the radio, infrared (IR), and optical
domains. In particular, the publication of the second data release (Gaia DR2) from the Gaia …

Much of the progress in astronomy has been driven by instrumental developments, from the
first telescopes to fiber fed spectrographs. In this review, we describe the field of …

Despite the strong increase in observational data on extrasolar planets, the processes that
led to the formation of these planets are still not well understood. However, thanks to the …

We are still in the early days of exoplanet discovery. Astronomers are beginning to model
the atmospheres and interiors of exoplanets and have developed a deeper understanding of …

This paper is devoted to study the circumstances favourable to detect circumstellar and
circumbinary planets in well-detached binary-star systems using eclipse timing variations …

Abstract The Closeby Habitable Exoplanet Survey (CHES) constitutes a mission intricately
designed to systematically survey approximately 100 solar-type stars located within the …

This paper discusses the effects of gravitational waves on high-accuracy astrometric
observations such as those delivered by Gaia. Depending on the frequency of gravitational …

In this paper, the gravitational deflection of a relativistic massive neutral particle in the
Schwarzschild-de Sitter spacetime is studied via the Rindler–Ishak method in the weak-field …

Sky survey telescopes and powerful targeted telescopes play complementary roles in
astronomy. In order to investigate the nature and characteristics of the motions of very faint …