Detached cataclysmic variables are crossing the orbital period gap [PDF]
, 2016 A central hypothesis in the theory of cataclysmic variable (CV) evolution is the need to explain the observed lack of accreting systems in the ~2-3 h orbital period range, known as the period gap.
Agurto-Gangas, Carolina +8 more
core +8 more sources
Orbital period change of Dimorphos due to the DART kinetic impact. [PDF]
Nature, 2023 The Double Asteroid Redirection Test (DART) spacecraft successfully performed the first test of a kinetic impactor for asteroid deflection by impacting Dimorphos, the secondary of near-Earth binary asteroid (65803) Didymos, and changing the orbital ...
Thomas CA +48 more
europepmc +3 more sources
The Astrophysical Journal Supplement SeriesMany hot Jupiters may experience orbital decays, which are manifested as long-term transit-timing variations. We have analyzed 7068 transits from the Transiting Exoplanet Survey Satellite (TESS) for a sample of 326 hot Jupiters.
Wenqin Wang +5 more
doaj +2 more sources
Orbital period changes and the higher-order multiplicity fraction amongst SuperWASP eclipsing binaries [PDF]
, 2015 Orbital period changes of binary stars may be caused by the presence of a third massive body in the system. Here we have searched the archive of the Wide Angle Search for Planets (SuperWASP) project for evidence of period variations in 13 927 eclipsing ...
M. E. Lohr +4 more
openalex +3 more sources
UltraCompCAT: A comprehensive catalogue of ultra-compact and short orbital period X-ray binaries [PDF]
Astronomy & Astrophysics, 2023 Ultracompact X-ray binaries (UCXBs) are a distinctive but elusive family of low-mass X-ray binaries (LMXBs) characterised by their tight orbits and degenerate donor stars.
M. Armas Padilla +6 more
semanticscholar +1 more source
The first photometric and orbital period investigation of an extremely low mass ratio contact binary with a sudden period change, TYC 4002-2628-1 [PDF]
Monthly notices of the Royal Astronomical Society, 2022 Photometric observations for the totally eclipsing binary system TYC 4002-2628-1, were obtained between November 2020 and November 2021. To determine the stellar atmospheric parameters, a spectral image was taken with the 2.16 m telescope at National ...
D. Guo +8 more
semanticscholar +1 more source
A dense 0.1-solar-mass star in a 51-minute-orbital-period eclipsing binary [PDF]
Nature, 2022 Of more than a thousand known cataclysmic variables (CVs), where a white dwarf is accreting from a hydrogen-rich star, only a dozen have orbital periods below 75 minutes1–9. One way to achieve these short periods requires the donor star to have undergone
K. Burdge +26 more
semanticscholar +1 more source
Discovery of orbital eccentricity and evidence for orbital period increase of SS433 [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2021 The examination of long-term (1979–2020) photometric observations of SS433 enabled us to discover a non-zero orbital eccentricity of e = 0.05 ± 0.01. We have also found evidence for a secular increase in the orbital period at a rate of $\dot{P}_\mathrm{
A. Cherepashchuk +3 more
semanticscholar +1 more source
ASASSN-18aan: An eclipsing SU UMa-type cataclysmic variable with a 3.6-hr orbital period and a late G-type secondary star [PDF]
, 2021 We report photometric and spectroscopic observations of the eclipsing SU UMa-type dwarf nova ASASSN-18aan. We observed the 2018 superoutburst with 2.3 mag brightening and found the orbital period (Porb) to be 0.149454(3) d, or 3.59 hr.
Yasuyuki Wakamatsu +43 more
semanticscholar +1 more source
The Planetary Science Journal, 2022 The Double Asteroid Redirection Test (DART) is the first planetary defense mission to demonstrate the kinetic deflection technique. The DART spacecraft will collide with the asteroid Dimorphos, the smaller component of the binary asteroid system (65803 ...
R. Nakano +8 more
semanticscholar +1 more source