output
20022026
most citedThe Transiting Exoplanet Survey Satellite

4.1k citations

Showing 2024 · astro-ph.SRShow all

6 papers · 2 filters

astro-ph.SR2024★ 1 cited

True Unicorns and False Positives: Simulated Probabilities of Dark Massive Companions to Bright Stars

Andrew M. Miller, Alexander P. Stephan, David V. Martin

Many compact objects (black holes and neutron stars) exist in binaries. These binaries are normally discovered through their interactions, either from accretion as an X-ray binary…

astro-ph.SR2024

On the use of field RR Lyrae as Galactic probes VII. light curve templates in the LSST photometric system

V. F. Braga, M. Monelli, M. Dall'Ora +5

The \textit{Vera C. Rubin} Observatory will start operations in 2025. During the first two years, too few visits per target per band will be available, meaning that mean magnitude…

astro-ph.SR2024★ 12 cited

Magnetic Fields of M Dwarfs from the Pleiades Open Cluster

Fabio Wanderley, Katia Cunha, Oleg Kochukhov +10

Average magnetic field measurements are presented for 62 M-dwarf members of the Pleiades open cluster, derived from Zeeman-enhanced Fe I lines in the H-band. An MCMC methodology wa…

astro-ph.SR2024

The evolution of stellar X-ray activity and angular momentum as seen by eROSITA, TESS, and Gaia

Keivan G. Stassun, Marina Kounkel

We have assembled a sample of 8200 stars with spectral types F5V-M5V, all having directly measured X-ray luminosities from eROSITA and rotation periods from TESS, and having…

astro-ph.SR2024

Detecting New Visual Binaries in Gaia DR3 with Gaia and Two Micron All Sky Survey (2MASS) Photometry II. Speckle Observations of 16 Low-Separation Systems

Ilija Medan, Sébastien Lépine, Zachary Hartman +1

Here we present speckle observations of 16 low-separation ( AU) high probability candidate binaries from the catalog by Medan et al., where secondaries typically lack astrome…

astro-ph.SR2024★ 23 cited

Nature vs. Nurture: Distinguishing Effects from Stellar Processing and Chemical Evolution on Carbon and Nitrogen in Red Giant Stars

John D. Roberts, Marc H. Pinsonneault, Jennifer A. Johnson +16

The surface [C/N] ratios of evolved giants are strongly affected by the first dredge-up (FDU) of nuclear-processed material from stellar cores. C and N also have distinct nucleosyn…