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Differentiating the Acceleration Mechanisms in the Slow and Alfvénic Slow Solar Wind
D'Amicis, Raffaella; Reeves, Katharine K.; Stawarz, Julia E. +18 more
In the corona, plasma is accelerated to hundreds of kilometers per second and heated to temperatures hundreds of times hotter than the Sun's surface before it escapes to form the solar wind. Decades of space-based experiments have shown that the energization process does not stop after it escapes. Instead, the solar wind continues to accelerate, a…
The T16 Project: Image Subtraction Light Curves from TESS Cycle 1 Full-frame Images for Stars with T < 16
Hartman, Joel D.; Bakos, Gáspár Á.; Bouma, Luke G. +1 more
We present 83,717,159 light curves for 56,401,549 stars with T < 16 mag observed in the Full-Frame Images (FFIs) of Cycle 1 of the NASA TESS mission. These light curves were extracted from subtracted images produced by the Cluster Difference Imaging Survey. We make public the raw image subtraction light curves, together with light curves de-tre…
Stellar Loci. VIII. Photometric Metallicities for 100 Million Stars Based on Synthetic Gaia Colors
Xiang, Maosheng; Huang, Yang; Beers, Timothy C. +4 more
We apply the stellar locus method to synthetic (BP–RP)XPSP and (BP–G)XPSP colors derived from corrected Gaia BP/RP (XP) spectra to obtain precise estimates of metallicity for about 100 million stars in the Milky Way (34 million giants in the color range 0.6 < (BP–RP)0 < 1.75 and 65 million dwarfs in the color…
Radio dimming associated with filament eruptions in the meter and decimeter wavebands
Feng, Li; Tian, Hui; Madjarska, Maria S. +12 more
Filament eruptions are considered to be a common phenomenon on the Sun and other stars, yet they are rarely directly imaged in the meter and decimeter wavebands. Using imaging data from the DAocheng solar Radio Telescope (DART) in the 150‑450 MHz frequency range, we present two eruptive filaments that manifest as radio dimmings (i.e., emission dep…
VIRAC2: NIR astrometry and time series photometry for 500M+ stars from the VVV and VVVX surveys
Smith, Leigh C.; Belokurov, Vasily; Minniti, Dante +11 more
We present VIRAC2, a catalogue of positions, proper motions, parallaxes and Z, Y, J, H, and
The Blue Lurker WOCS 14020: A Long-period Post-common-envelope Binary in M67 Originating from a Merger in a Triple System
Sills, Alison; Sun, Meng; Mathieu, Robert D. +3 more
We present Hubble Space Telescope far-ultraviolet (FUV) spectra of a blue lurker–white dwarf (BL–WD) binary system in the 4 Gyr open cluster M67. We fit the FUV spectrum of the WD, determining it is a C/O WD with a mass of
Revisiting symbiotic binaries with interferometry: I. The PIONIER archival collection
Boffin, Henri M. J.; Merc, Jaroslav
Symbiotic stars serve as exceptional laboratories for investigating mass transfer processes in binary systems. However, the dominant mechanism of mass transfer from the red giant donor to the compact accretor – typically a white dwarf or, in rare cases, a neutron star – remains unclear. It is uncertain whether it is driven primarily by the stellar…
The XMM Cluster Survey: automating the estimation of hydrostatic mass for large samples of galaxy clusters – I. Methodology, validation, and application to the SDSSRM-XCS sample
Nichol, R. C.; Romer, A. K.; Bhargava, S. +18 more
We describe features of the X-ray: Generate and Analyse (XGA) open-source software package that have been developed to facilitate automated hydrostatic mass (
C3PO. III. On the Lithium Signatures following Planet Engulfment by Stars
Ting, Yuan-Sen; Twarog, Bruce A.; Anthony-Twarog, Barbara J. +8 more
Planet engulfment has been identified as one of the mechanisms for enhancing lithium abundance in stars. However, comprehensive investigations into lithium signatures following such events remain limited. Stars born together, sharing a common origin and stellar characteristics, provide a unique opportunity to study these signatures and compare lit…
Testing the mass-radius relation of white dwarfs in common proper-motion pairs: I. Hydrogen-dominated atmospheres
Rebassa-Mansergas, Alberto; Raddi, Roberto; Camisassa, Maria E. +6 more
Context. White dwarf masses are among the most important properties used to constrain their past and future evolution. Direct estimates of white dwarf masses are crucial for assessing the validity of theoretical evolutionary models and methods of analysis. Aims. The main goal of this work was to measure the masses and radii of white dwarfs that be…