Publications of the Astronomical Society of the Pacific (PASP)
@paspjournal.bsky.social
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Publishing original research in astronomy and astrophysics since 1889. Currently led by Editor-in-Chief Jeff Mangum (@jeffreygmangum.bsky.social)
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paspjournal.bsky.social
In a recent article published in @paspjournal.bsky.social a prioritized community list of potential stellar targets for the Habitable Worlds Observatory's (HWO) ExoEarth survey is derived and presented. iopscience.iop.org/article/10.1...
Targets in all tiers of our catalog plotted in distance vs. luminosity space, with the tiers indicated by color.  From Tuchow etal (2025).
paspjournal.bsky.social
A recent article published in @paspjournal.bsky.social presents an analysis of the role that the convective kissing instability plays in cataclysmic variable evolution. iopscience.iop.org/article/10.1...
Mass coordinate of the convective zones (gray) and radiative zones (white) for the different starting periods.  From Larsen & MacDonald (2025).
paspjournal.bsky.social
A recent open-access topical review published in @paspjournal.bsky.social presents a detailed review of the theory of exozodi sources and dust evolution. iopscience.iop.org/article/10.1...
Distribution of asteroids and dust in the inner solar system.  From Wyatt etal (2025).
paspjournal.bsky.social
In a recent article published in @paspjournal.bsky.social an analysis of three binary-source binary-lens microlensing events from the 2024 OGLE and KMTN measurement campaign is presented. iopscience.iop.org/article/10.1...
Light curve for lensing event KMT-2024-BLG-2017.  From Han etal (2025).
paspjournal.bsky.social
In a recent open-access article published in @paspjournal.bsky.social radial velocity strategies for the orbital refinement of exoplanet direct imaging targets are discussed and analyzed. iopscience.iop.org/article/10.1....
Testing result for orbital period and uncertainty evolution of the HD 134987 c planet based on synthetic RVs.  From Li etal (2025).
paspjournal.bsky.social
In a recent article published in @paspjournal.bsky.social an analysis of the spectrum and polarization variation on short timescales within four luminous Blazars is presented. iopscience.iop.org/article/10.1...
Zoomed-in view of multi-band light curves and polarization degree for selected flare events of four blazars.  From Yang & Jiang (2025).
paspjournal.bsky.social
A recent open-access tutorial published in @paspjournal.bsky.social presents an introduction to dust evolution and vertical transport in protoplanetary disks. iopscience.iop.org/article/10.1...
Illustration of the temperature structure, dust distribution, and observational constraints in protoplanetary disks from Miotello et al. (2023); Credit: T. Birnstiel.
paspjournal.bsky.social
A recent open-access article published in @paspjournal.bsky.social presents a validation of the on-axis point spread function reconstruction for the Keck adaptive optics system. iopscience.iop.org/article/10.1...
NIRC2 images (top row), best-fit PRIME PSFs (middle row) and resultant residuals (bottom row).  From Sabhlok etal (2025).
paspjournal.bsky.social
A recent article published in @paspjournal.bsky.social presents a study of the donor star population in x-ray binaries, arguing for the existence of a bimodal distribution. iopscience.iop.org/article/10.1...
The observed distribution of donor stars in XRBs.  From Zhang etal (2025).
paspjournal.bsky.social
In a recent open-access article published in @paspjournal.bsky.social an analysis of the dependency on mass ratio and orbital period of wind accretion in massive binaries experiencing high mass loss rates is presented. iopscience.iop.org/article/10.1...
Evolutionary tracks of the companion stars (ranging from 30 to 80 M⊙) and the primary star (100 M⊙) from ZAMS to the WR phase at Galactic metallicity using the MLT++ formalism.  From Mukhija & Kashi (2025).
paspjournal.bsky.social
A recent article published in @paspjournal.bsky.social presents measurements of the JWST Near Infrared Spectrograph (NIRSpec) cosmic ray hit rate, including a prediction for the incidence of NIRSpec cosmic ray encounters through the 2030s. iopscience.iop.org/article/10.1...
Examples of large cosmic ray hit morphologies on NIRSpec images.  From Rauscher & Fixsen (2025).
paspjournal.bsky.social
A recent article published in @paspjournal.bsky.social describes advances in the design, implementation and verification of the Xinjiang Qitai Radio Telescope (QTT) digital backend system. iopscience.iop.org/article/10.1...
Architecture of the QTT Wanxiang digital backend.  From Pei etal (2025)
paspjournal.bsky.social
In a recent article published in @paspjournal.bsky.social an algorithm which uses a U-Net deep neural network and line segment detector algorithm to identify artificial satellite trails in ground-based photometric imaging is presented and analyzed. iopscience.iop.org/article/10.1...
Image segmentation results from real observational data collected by the Mini-SiTian Array No. 3 telescope at the Xinglong Observatory.  From Chen etal (2025)
paspjournal.bsky.social
A recent open-access article published in @paspjournal.bsky.social describes the La Silla Schmidt Southern Survey (LS4), a wide-field time-domain survey that will be conducted with the 1m ESO Schmidt telescope. iopscience.iop.org/article/10.1....
A comparison of the FOV (Ω) and light collecting area of the primary mirror (A) highlighting the étendue (AΩ) of past, current, and future time-domain surveys.  From Miller etal (2025).
paspjournal.bsky.social
A recent open-access article published in @paspjournal.bsky.social investigates the origin of hypervelocity white dwarfs (HVWDs) by assessing the dynamically driven double-degenerate double-detonation (D6) scenario for the origin of these systems. iopscience.iop.org/article/10.1...
HR diagrams for the 0.98 solar mass WD models (left) with zoom-in on the Einj = 5x10^(49) erg track afer 10^3 years.  The HVWDs studied in this article are indicated.  From Yamaguchi etal (2025).
paspjournal.bsky.social
A recent article published in @paspjournal.bsky.social extends the Supernova Tagging and Classification (STag) system for spectral assignment to the classification of serendipitous supernovae observed by galaxy redshift surveys. iopscience.iop.org/article/10.1...
Comparison of the Dark Energy Spectroscopic Instrument (DESI) observed spectra and spectra of each supernova sourced from Transient Name Server (TNS).  From Davison etal (2025).
paspjournal.bsky.social
A recent open-access article published in @paspjournal.bsky.social presents an analysis of the stripped-envelope supernovae SN 2021uvy and SN 2022hgk, and discusses these two supernovae within the context of double-peaked stripped envelope supernovae. iopscience.iop.org/article/10.1...
Light (top) and color (bottom) curves for SN 2021uvy (left) and SN 2022hgk (right).  From Sharma etal (2025).
paspjournal.bsky.social
A recent open-access article published in @paspjournal.bsky.social describes the origin of the thermal background contribution to mid-IR direct imaging measurements on the Keck II telescope and its correction. iopscience.iop.org/article/10.1...
Comparisons of the various techniques for performing background subtraction including simple flat median subtraction, background LOCI, and extra basis LOCI.  From Nguyen etal (2025).
paspjournal.bsky.social
A recent open-access article published in @paspjournal.bsky.social presents projecc (github.com/logan-pearce...), an open-source Python package designed to generate sky-plane planet location posteriors from literature orbit solutions. iopscience.iop.org/article/10.1...
Two views of the predicted sky position of Prox Cen b at the expected time of maximum elongation from the star drawn from published orbital parameters.  From Pearce, Males, & Limbach (2025).
paspjournal.bsky.social
A recent article published in @paspjournal.bsky.social characterizes the Cherenkov photon background emission within low-noise silicon detectors used in space applications. iopscience.iop.org/article/10.1...
Relative Cherenkov background rate for maximum solar activity (minimum number of particles per exposure) considering cosmic-ray species individually and in combination. From Gaido etal (2025).
paspjournal.bsky.social
A recent article published in @paspjournal.bsky.social evaluates the resolution limits of astronomical periodograms imposed by the Rayleigh criterion. iopscience.iop.org/article/10.1...
Radial velocities of 55 Cnc used in the analysis presented.  From Ramirez Delgado etal (2025).
paspjournal.bsky.social
In a recent open-access article published in @paspjournal.bsky.social describes a search for dormant black holes in low-metallicity binary star systems. iopscience.iop.org/article/10.1...
Median fraction of BH companions at d <2 kpc and G <15 (see Section 6.2) recovered by the search strategy presented as a function of orbital period and BH mass, with the shaded regions representing a 68% confidence interval.  From Nagarajan etal (2025).
paspjournal.bsky.social
A recent article published in @paspjournal.bsky.social describes a multimodal deep learning framework, the Photometric Image Spectral Transformer Net (PIST-Net), for Red Giant stellar parameter estimation. iopscience.iop.org/article/10.1...
Estimated stellar parameter values from PIST-Net versus catalog values from K2-APO.  From Cui etal (2025)
paspjournal.bsky.social
A recent article published in @paspjournal.bsky.social presents a comparison of modeled galaxy completeness in HST SKYSURF WFC3 and ACS/WFC imaging as a function of exposure time and background to that predicted by the HST exposure time calculator. iopscience.iop.org/article/10.1...
The observed relationship between the completeness limit and magnitude of the objects measured.  From Goisman etal (2025).
paspjournal.bsky.social
A recent open-access article published in @paspjournal.bsky.social presents a characterization of the intrinsic demographics of approximately 10,000 resolved triple star systems within 500 pc of the Sun using the Gaia measurement archive. iopscience.iop.org/article/10.1...
Imaes of resolved triples with proper motion vectors.  From Shariat, El-Badry & Naoz (2025).