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Discovery of the neutron star spin and orbital period from the Be/X-ray binary IGR J05414-6858 in the LMC
Discovery neutron star spin orbital the Be/X-ray binary IGR J05414-6858 the LMC
2012/2/23
The number of known Be/X-ray binaries in the Large Magellanic Cloud is small compared to the observed population of the Galaxy or the Small Magellanic Cloud. The discovery of a system in outburst prov...
Spectra disentangling applied to the Hyades binary Theta^2 Tau AB: new orbit, orbital parallax and component properties
the Hyades binary Theta^2 Tau AB orbital parallax component properties
2011/1/11
Theta^2 Tauri is a detached and single-lined interferometric-spectroscopic binary as well as the most massive binary system of the Hyades cluster. The system revolves in an eccentric orbit with a peri...
Orbital Period Determinations for Four SMC Be/X-ray Binaries
Orbital Period Determinations SMC Be/X-ray Binaries
2011/1/11
We present an optical and X-ray study of four Be/X-ray binaries located in the Small Magellanic Cloud (SMC). OGLE I-band data of up to 11 years of semi-continuous monitoring has been analysed for SMC ...
High Mass X-ray Binaries in the NIR : Orbital solutions of two highly obscured systems
High Mass X-ray Binaries；the NIR
2011/1/13
The maximum mass of a neutron star (NS) is poorly defined. Theoretical attempts to define this mass have thus far been unsuccessful. Observational results currently provide the only means of narrowing...
Detectability of Orbital Motion in Stellar Binary and Planetary Microlenses
Orbital Motion Stellar Binary Planetary Microlenses
2011/1/13
A standard binary microlensing event lightcurve allows just two parameters of the lensing system to be measured: the mass ratio of the companion to its host, and the projected separation of the compon...
The orbital and superhump periods of the dwarf nova HS 0417+7445 in Camelopardalis
bital and superhump periods Camelopardalis
2010/11/11
We present the 2005–2010 outburst history of the SUUMa-type dwarf HS 0417+7445,along with a detailed analysis of extensive time-series photometry obtained in March 2008 during the second recorded supe...
Orbital parameters of supergiant fast X-ray transients
X-rays binaries – Stars neutron – Stars supergiants – Accretion accretion disks
2010/11/15
Context. Super giant fast X-ray transient (SFXT) is a new class of the high mass X-ray binary that shows short X-ray flares. The physical mechanism of SFXT short flares is still open for discussion. T...
Orbital Solutions for Two Young, Low-Mass Spectroscopic Binaries in Ophiuchus
binaries spectroscopic — starslT Tauri — techniqueslradial velocities
2010/11/9
We report the orbital parameters for ROXR1 14 and RX J1622.7-2325Nw, two young, low-mass, and double-lined spectroscopic binaries recently discovered in the Ophiuchus star forming region.
Orbital Orientations of Exoplanets: HAT-P-4b is Prograde and HAT-P-14b is Retrograde
Earth and Planetary Astrophysics (astro-ph.EP)
2010/12/27
We present observations of the Rossiter-McLaughlin effect for two exoplanetary systems, revealing the orientations of their orbits relative to the rotation axes of their parent stars.
Transit timing variations in eccentric hierarchical triple exoplanetary systems. I. Perturbations on the time-scale of the orbital period of the perturber
Earth and Planetary Astrophysics (astro-ph.EP) Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/24
We study the long-term time-scale (i.e. period comaprable to the orbital period of the outer perturber object) transit timing variations in transiting exoplanetary systems which contain a further, mor...
THE NEW KINEMATICAL DEFINITION OF ORBITAL ECCENTRICITY
Galaxy: kinematics and dynamics a kinematical nature three-dimensional orbits
2010/10/29
A new concept of orbital eccentricity is given. The dimensionless quantities proposed in the present paper to serve as orbital eccentricities have a kinematical nature. The purpose is to use them in d...
Orbital elements for bu 1240 ab. nature of the c and d components
Orbital elements c and d components bu 1240 ab
2009/7/10
Orbital elements for bu 1240 ab. nature of the c and d components。
Closed Newton-Cotes trigonometrically-fitted formulae for long-time integration of orbital problems
trigonometrically-fitted formulae Newton-Cotes orbital problems
2009/6/30
Closed Newton-Cotes trigonometrically-fitted formulae for long-time integration of orbital problems。
The short orbital period CV h_0242-28。
Perturbations by Mass Loss in the Orbital Elements of Persei and Centauri
Mass Loss Persei Centauri Orbital Elements
2009/6/9
Perturbations by Mass Loss in the Orbital Elements of Persei and Centauri。