ZTF J0007+4804 is the first known hot subdwarf-white dwarf binary that exhibits SU UMa-type dwarf nova outbursts with a 108.72-minute orbital period.
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Eight low-redshift Little Red Dots identified in DESI DR1 exhibit broad Balmer lines, steep decrements, compact shapes, and negligible variability, with a number density roughly 10,000 times lower than at z>4.
New catalogue of 1423 Gaia DR3 variable white dwarf candidates, with 141 ZTF-confirmed periodic variables classified into known types and 83 newly identified periodic stars.
Simulations demonstrate that timescale-based decoupling predictions overestimate separations by a factor of ~3, velocity-based criteria are more accurate, and low-viscosity disks produce decreasing accretion that may identify LISA hosts.
Upper limits on the shortest AGN variability timescales are log(t_min,ul/hrs) = 0.85 ± 0.55, interpreted as light-crossing times from a few to thousands of gravitational radii in regions smaller than accretion disks.
Joint radial-velocity and astrometry analysis detects five new cold giant planets and improves precision on two known ones around CHEPS targets.
Asteroseismic characterisation of 32 bright stars in PLATO LOP fields using TESS data yields mode parameters for 26 stars extracted for the first time, with comparisons across three pipelines.
citing papers explorer
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Discovery of the first outbursting hot subdwarf binary: ZTF J0007+4804
ZTF J0007+4804 is the first known hot subdwarf-white dwarf binary that exhibits SU UMa-type dwarf nova outbursts with a 108.72-minute orbital period.
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A new sample of Little Red Dots at $z<0.45$ in DESI DR1: Broad Balmer lines, low ionization spectrum and no variability
Eight low-redshift Little Red Dots identified in DESI DR1 exhibit broad Balmer lines, steep decrements, compact shapes, and negligible variability, with a number density roughly 10,000 times lower than at z>4.
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Gaia DR3 Variable White Dwarfs vetted by ZTF
New catalogue of 1423 Gaia DR3 variable white dwarf candidates, with 141 ZTF-confirmed periodic variables classified into known types and 83 newly identified periodic stars.
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The Decoupling of Binaries from Their Circumbinary Disks
Simulations demonstrate that timescale-based decoupling predictions overestimate separations by a factor of ~3, velocity-based criteria are more accurate, and low-viscosity disks produce decreasing accretion that may identify LISA hosts.
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The shortest detected intra-day variability of active galactic nuclei in TESS survey
Upper limits on the shortest AGN variability timescales are log(t_min,ul/hrs) = 0.85 ± 0.55, interpreted as light-crossing times from a few to thousands of gravitational radii in regions smaller than accretion disks.
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Cold giant discoveries from a joint radial-velocity and astrometry framework
Joint radial-velocity and astrometry analysis detects five new cold giant planets and improves precision on two known ones around CHEPS targets.
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Luminaries in the Sky: The TESS LEGACY Sample of Bright Stars. II. In-depth seismic characterisation of 32 naked-eye stars in the PLATO LOP fields
Asteroseismic characterisation of 32 bright stars in PLATO LOP fields using TESS data yields mode parameters for 26 stars extracted for the first time, with comparisons across three pipelines.