The Habitable Worlds Observatory (HWO) is a NASA astrophysics flagship mission concept for a future large space telescope that would be the first designed specifically to search for signs of life on planets outside our solar system by directly imaging and spectroscopically characterizing Earth-sized exoplanets orbiting in the habitable zones of nearby Sun-like stars.
This Special Issue welcomes submissions on such topics, and others that fall within the scope of RASTI, in furtherance of the HWO mission concept development. Submission deadline: 31st August 2026.
Latest Articles
Publicly available photometry pipelines make astronomical data reduction accessible to non-experts, reduce the margin for human error, and enable reproducible reduction. In many cases, bespoke reduction software is written on a per-instrument basis; this results in rigid pipelines that cannot be ...
Finding specific events of interest within the XMM–Newton Science Archive (XSA) is a significant challenge due to the sheer volume of data, which contains over 300 000 source light curves. While the mission provides standardized multiband products, the vast majority of these time series remain ...
Giant star-forming clumps are kpc-scale regions of enhanced star-formation with stellar masses of $10^7$ to $10^9\, \rm M_\odot$ that are commonly observed in high-redshift galaxies but are rarely detected in low-redshift ( $z\lesssim 0.5$ ) galaxy analogues. However, the availability of wide-field ...
Although investigations of short-term time-intensity changes, such as Forbush decreases (FDs) and cosmic ray (CR) diurnal anisotropies, and long-term CR flux variations began decades ago, the influence of the 11-yr solar cycle variations on FDs is rarely examined in detail. This study presents the ...
The scientific utility of large single-dish radio telescopes depends critically on the stability and fidelity of their beam patterns, which govern angular resolution, sensitivity, and polarimetric accuracy. For the 32–m Ghana Radio Astronomy Observatory (GRAO) antenna, electromagnetic simulations ...
Astrophysical simulations frequently address multiscale, multiphysics problems through subsystem decomposition, problem-tailored integration schemes, and coupling on fixed manually set time-scales. Here we introduce ReLaTS, a reinforcement learning framework that dynamically selects the coupling ...
The ground-level network of neutron monitors (NMs) remains the most important instrument for investigating cosmic ray (CR) time–intensity variations over time-scales of up to seven decades. The very high counting rate and long-term reliability of NMs are competitive advantages they hold over ...
We present a new method for the automated classification of eclipsing binaries, into contact, detached, and semidetached types using Kepler data. Phase-folded light curves are generated and chi-square versus box size plots are constructed by comparing flux values to the median flux, revealing ...
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3.22025 CiteScore
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