Context. In the standard cosmological model of galaxy evolution, mergers and interactions play a fundamental role in shaping galaxies. Galaxies that are currently isolated are thus interesting because they allow us to distinguish between internal and external processes that affect the galactic structure. However, current observational limits may
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The AMIGA sample of isolated galaxies. XIV. Disc breaks and interactions through ultra-deep optical imagingSánchez-Alarcón, P. M. et al.92023
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The GAPS programme at TNG. XLVI. Deep search for low-mass planets in late-dwarf systems hosting cold Jupiters
Context. With the growth of comparative exoplanetology, it is increasingly clear that the relationship between inner and outer planets plays a key role in unveiling the mechanisms governing formation and evolution models. For this reason, it is important to probe the inner region of systems hosting long-period giants in search of undetected lower
Pinamonti, M. et al.Advertised on:
92023 -
The stellar halo in Local Group Hestia simulations. I. The in situ component and the effect of mergers
Theory suggests that mergers play an important role in shaping galactic discs and stellar haloes, which was observationally confirmed in the Milky Way (MW) thanks to Gaia data. In this work, aiming to probe the contribution of mergers to the in situ stellar halo formation, we analyse six M 31 and MW analogues from the HESTIA suite of cosmological
Khoperskov, Sergey et al.Advertised on:
92023 -
The stellar halo in Local Group Hestia simulations. II. The accreted component
Recent progress in understanding the assembly history of the Milky Way (MW) is driven by the tremendous amount of high-quality data delivered by Gaia (ESA), revealing a number of substructures potentially linked to several ancient accretion events. In this work we aim to explore the phase-space structure of accreted stars by analysing six M31/MW
Khoperskov, Sergey et al.Advertised on:
92023 -
The stellar halo in Local Group Hestia simulations. III. Chemical abundance relations for accreted and in situ stars
Stellar chemical abundances and kinematics provide key information for recovering the assembly history of galaxies. In this work we explore the chemo-chrono-kinematics of accreted and in situ stellar populations, by analyzing six M31/Milky Way (MW) analogues from the HESTIA suite of cosmological hydrodynamics zoom-in simulations of the Local Group
Khoperskov, Sergey et al.Advertised on:
92023 -
A 5M<SUB>Jup</SUB> non-transiting coplanar circumbinary planet around Kepler-1660AB
Over a dozen transiting circumbinary planets have been discovered around eclipsing binaries. Transit detections are biased towards aligned planet and binary orbits, and indeed all of the known planets have mutual inclinations less than 4.5○. One path to discovering circumbinary planets with misaligned orbits is through eclipse timing variations
Goldberg, Max et al.Advertised on:
112023