activity
20242026
most citedLAMOST J171013+532646: a detached short-period non-eclipsing hot subdwarf + white dwarf binary

4 citations · 6 across the 12 of their papers we have counts for

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Showing 2026Show all

7 papers · 1 filter

astro-ph.SR2026

Stage-dependent superhump waveform evolution and non-stationary positive-superhump timing in the near-period-gap dwarf nova YZ Cancri

Zhibin Dai, Xuefei Chen, Zhanwen Han

We present a photometric and timing study of the near-period-gap SU~UMa-type dwarf nova YZ~Cancri, based on nearly continuous Transiting Exoplanet Survey Satellite (TESS) photometr…

astro-ph.SR2026

First double red giant Algol system with active mass transfer

Mikhail Kovalev, Hailiang Chen, Sufen Guo +7

Double red giant stars are very important for studies of the stability of mass transfer, common-envelope evolution, and the formation of double white dwarfs with short orbital peri…

astro-ph.SR2026

Surface brightness-color relations for red giant branch stars: Observational constraints on metallicity effects using the ARD method

Jianping Xiong, Xiaodian Chen, Jiao Li +5

Aims: We aim to quantify the metallicity dependence of the SBCR for red giant branch (RGB) stars and to test the robustness of the relation using asteroseismic radii, Gaia distance…

astro-ph.SR2026

Empirical colour--effective temperature relations in the SDSS system from IRFM temperatures of GALAH and APOGEE stars

Zenghua Zhou, Luca Casagrande, Xiaobin Zhang +5

Reliable estimates of stellar effective temperature () are fundamental to stellar population studies and Galactic astrophysics. However, the majority of stars ob…

astro-ph.IM2026★ 1 cited

Recalibration of SDSS photometric zero-points based on the InfraRed Flux Method temperature scale

Zenghua Zhou, Luca Casagrande, Heran Xiong +4

Accurate photometric zero-points are essential for translating observed magnitudes into physical fluxes, from comparing with models to ensuring consistency across surveys. We deter…

astro-ph.SR2026

Discovery and Characterization of White Dwarf-FGK Main-Sequence Binaries within the Optical Main-Sequence Locus

Mingkuan Yang, Hailong Yuan, Xiaozhen Yang +12

White dwarf main-sequence (WDMS) binaries provide important laboratories for studying binary evolution and the formation of low-mass white dwarfs. In this work, we identify 654 rel…

astro-ph.SR2026

Identification of false positive double-lined spectroscopic binaries in LAMOST-MRS data due to moonlight contamination

Zhoulin Wang, Mikhail Kovalev, Jianping Xiong +2

We present a method for identifying false positive double-lined spectroscopic binary (SB2) candidates by analysing medium-resolution survey spectra from the Large Sky Area Multi-Ob…