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On using the beaming effect to measure spin-orbit alignment in stellar binaries with Sun-like components
measure spin-orbit alignment stellar binaries Sun-like components
2011/10/13
The beaming effect (aka Doppler boosting) induces a variation in the observed flux of a luminous object, following its observed radial velocity variation. We describe a photometric signal induced by t...
On the pulse-width statistics in radio pulsars. II. Importance of the core profile components
stars:pulsars:general – stars:neutron – stars:rotation
2011/9/27
We performed a statistical analysis of half-power pulse-widths of the core components in average pulsar profiles. We confirmed an existence of the lower bound of the distribution of half-power pulse-w...
Revisiting with Chandra the Scaling Relations of the X-ray Emission Components (Binaries, Nuclei and Hot Gas) of Early Type Galaxies
galaxies elliptical and lenticular – X-rays galaxies
2010/11/15
We have selected a sample of 30 normal (non-cD) early type galaxies, for all of which optical spectroscopy is available, and which have been observed with Chandra to a depth such to insure the detecti...
Probing the Transition Between the Synchrotron and Inverse-compton Spectral Components of 1ES 1959+650
High Energy Astrophysical Phenomena (astro-ph.HE)
2011/1/6
1ES 1959+650 is one of the most remarkable high-peaked BL Lacertae objects (HBL). In 2002, it exhibited a TeV gamma-ray flare without a similar brightening of the synchrotron component at lower energi...
Identification of strong photometric activity in the components of LHS 1070
Solar and Stellar Astrophysics (astro-ph.SR)
2010/12/27
Activity in low-mass stars is an important ingredient in the evolution of such objects. Fundamental physical properties such as age, rotation, magnetic field are correlated with activity.
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。
Binaries with compact components：theoretical and Observational challenges
Binaries compact components
2009/6/17
Binaries with compact components：theoretical and Observational challenges。
Ch cygni and other symbiotic stars with low luminosity Hot components
Ch cygni low luminosity Hot components symbiotic stars
2009/6/17
Ch cygni and other symbiotic stars with low luminosity Hot components。
On the nature of the binary components of rxj0806.3+1527。
A NEW APPROACH TO THE ESTIMATION OF THE DISPERSION COMPONENTS
DISPERSION COMPONENTS unknown X iterative algorihm
2009/3/31
A new method to calculate simultaneosly both the unknown X
and the components of the dispersion (results of measurement) is developed. An
improved iterative algorihm is used.
CONSTRAINED DECONVOLUTION BY EXPLICIT CORRECTION OF FOURIER COMPONENTS OF THE UNKNOWN DISTRIBUTION
UNKNOWN DISTRIBUTION deconvolution
2009/3/19
The physical constraints were applied in the problem of deconvolution
by explicitly correcting noise affected Fourier components of the unknown
distribution. The method gives the constrained estimat...