Orbital and sub-orbital period determination of the candidate high-mass X-ray binary HD 3191
Sign Up to like & getrecommendations! Published in 2021 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202140545
Abstract: The final aim of this paper is to expand the sparse group of X-ray binaries with gamma-ray counterparts as laboratories to study high-energy processes under physical conditions that periodically repeat. A follow-up of a candidate… read more here.
Keywords: period; orbital period; mass ray; ray ... See more keywords
Reanalysis of the orbital period variations of two DLMR overcontact binaries: FG Hya and GR Vir
Sign Up to like & getrecommendations! Published in 2017 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/17/12/128
Abstract: We investigate orbital period changes of two deep, low mass ratio (DLMR) overcontact W UMa-type binaries, FG Hya and GR Vir. It is found that the orbital period of FG Hya shows a cyclic change… read more here.
Keywords: dlmr overcontact; period; binaries hya; orbital period ... See more keywords
Orbital period changes of the W UMa binary YY Eri
Sign Up to like & getrecommendations! Published in 2018 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/18/9/106
Abstract: The orbital period changes of the W UMa-type binary, YY Eri, are analyzed by using all pe and ccd times of light minimum. The results show that its orbital period is undergoing a secular increase… read more here.
Keywords: binary eri; uma binary; period; period changes ... See more keywords
Photometric investigation and orbital period analyses of the WUMa binaries FP Lyn, FV CVn and V354 UMa
Sign Up to like & getrecommendations! Published in 2019 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/19/7/99
Abstract: New light curves and photometric solutions of FP Lyn, FV CVn and V354 UMa are presented. It is found that these three systems are W-subtype shallow contact binaries. In addition, it is obvious that the… read more here.
Keywords: v354 uma; orbital period; lyn cvn; cvn v354 ... See more keywords
Light Curve Analysis and Period Study of Two Eclipsing Binaries UZ Lyr and BR Cyg
Sign Up to like & getrecommendations! Published in 2022 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/ac3e5f
Abstract: Two eclipsing binary systems, UZ Lyr and BR Cyg, are semi-detached types whose secondary component fills its Roche lobe. Although radial velocity and light curves of these systems have already been investigated separately, both their… read more here.
Keywords: orbital period; curve analysis; period; light curve ... See more keywords
The Orbital Period vs. Absolute Magnitude Relationship of Intermediate Polars: Implications for Low States and Outbursts
Sign Up to like & getrecommendations! Published in 2023 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stad1603
Abstract: Recent advances in time-domain astronomy have led to fresh observational insights into intermediate polars, a subtype of magnetic cataclysmic variables generally accreting via a partial accretion disc. These new discoveries include detections of superhumps, low… read more here.
Keywords: low states; orbital period; states outbursts; period absolute ... See more keywords
The puzzling orbital period evolution of the LMXB AX J1745.6−2901
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stw2317
Abstract: The orbital period evolution of X-ray binaries provides fundamental clues to understanding mechanisms of angular momentum transfer and loss in these systems. We present an X-ray eclipse timing analysis of the transient low-mass X-ray binary… read more here.
Keywords: orbital period; period evolution; j1745 2901; period ... See more keywords