GJ 900: A new hierarchical system with low-mass components

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Precision Masses of the Low - Mass Binary System Gj 623

We have used Aperture Masking Interferometry and Adaptive Optics (AO) at the Palomar 200” to obtain precise mass measurements of the binary M dwarf GJ 623. AO observations spread over 3 years combined with a decade of radial velocity measurements constrain all orbital parameters of the GJ 623 binary system accurately enough to critically challenge the models. The dynamical masses measured are m...

متن کامل

Visual Orbit of the Low - Mass Binary Gj 164 Ab

We report seven successful observations of the astrometric binary GJ 164 AB system with aperture masking interferometry. The companion, with a near infrared contrast of 5:1 was detected beyond the formal diffraction limit. Combined with astrometric observations from the literature, these observations fix the parallax of the system, and allow a model-independent mass determination of both compon...

متن کامل

A New System of Contactless Power Transfer with Low Voltage Stress and Parasitic Capacitors Effect

In this paper, a high frequency contactless power transfer (CPT) system is designed with ∅2 inverter drive. This system works in 30MHz frequency and 380W power with low voltage stress and considers the inductive link parasitic capacitor effect. In the design, we formulated the inverter equations first and then suggested another design for the transmitter and the receiver coils as the energy tra...

متن کامل

Dynamical Mass of Gj 802b: a Brown Dwarf in a Triple System

We report a dynamical measurement of the mass of the brown dwarf GJ 802B using aperture-masking interferometry and astrometry. In addition, we report the discovery that GJ 802A is itself a close spectroscopic noneclipsing binary with a 19 hr period.We find the mass of GJ 802B to be 0:063 0:005M . GJ 802 has kinematics inconsistent with a young star and more consistent with the thick-disk popula...

متن کامل

Evolution of low-mass binaries with black-hole components

We consider evolutionary models for the population of short-period (Porb ∼ < 10 hr) low-mass black-hole binaries (LMBHB) and compare them with observations of soft X-ray transients (SXT). Evolution of LMBHB is determined by nuclear evolution of the donors and/or orbital angular momentum loss due to magnetic braking by the stellar wind of the donors and gravitational wave radiation. We show that...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Astrophysical Bulletin

سال: 2007

ISSN: 1990-3413,1990-3421

DOI: 10.1134/s1990341307020034