Sentences with phrase «alpha cen»
However, in comparison with the solar case, the FIR photosphere of alpha Cen A appears marginally cooler, Tmin = T160mu = 3920 + / -375 K. Beyond the minimum near 160mu, the brightness temperatures increase and this radiation likely originates in warmer regions of the chromosphere of alpha Cen A. To the best of our knowledge this is the first time a temperature minimum has been directly measured on a main - sequence star other than the Sun.
https://arxiv.org/
A specifically tailored Uppsala model based on the MARCS code and extending further in wavelength is used to gauge the emission characteristics of alpha Cen A in the FIR.
Project Blue's mission concept is based on the published work of Dr. Eduardo Bendek and Dr. Rus Belikov to image planets in the habitable zone of Alpha Cen A & B using a highly optimized coronagraphic telescope devoted to image the HZ of both stars.
If this is true, then that means that we don't know what kind of orbit an Alpha Cen exoplanet would have.
The Rajpaul paper is Rajpaul, Aigrain & Roberts, «Ghost in the time series: no planet for Alpha Cen B,» accepted for publication at Monthly Notices of the Royal Astronomical Society (preprint).
Ghost in the time series: no planet for Alpha Cen B. Monthly Notices of the Royal Astronomical Society Letters.
The Alpha Cen system is formed by two Sun - like stars orbiting each other in approximately 80 years.
Not exact matches
Alpha Centauri is a multiple - star system, with its two main stars being Alpha Centauri A (α Cen A) and Alpha Centauri B (α Cen B), usually defined to identify them as the different components of the binary α Cen AB.
Alpha Centauri A (α Cen A) has 1.1 times the mass and 1.519 times the luminosity of the Sun, while Alpha Centauri B (α Cen B) is smaller and cooler, at 0.907 times the Sun's mass and 0.445 times its visual luminosity.
Together, the bright visible components of the binary star system are called Alpha Centauri AB (α Cen AB).
Alpha Centauri (α Centauri, abbreviated Alf Cen, α Cen) is the closest star system to the Solar System, being 4.37 light - years (1.34 pc) from the Sun.