Early pre-main sequence evolution of low mass stars

Kucuk, I
Kiziloglu, N
Civelek, R
Evolution of the gravitational contraction phase of stars having masses 0.3 < M/M. < 1.5 were studied along with deuterium burning. The equation of state developed by Mihalas et al. (1988) and OPAL opacity tables were used in our investigation. The theoretical time Lines were compared with observations.


Evolution Of Rotating Low Mass Stars With Angular-Momentum Loss
KIZILOGLU, N (1991-03-01)
The evolutionary behavior of rotating low mass stars has been investigated with angular momentum loss by the magnetic stellar wind through the pre-main sequence and on the zero age main sequence phases. As the stars contract toward the zero age main sequence, angular momentum is removed from the convective envelope under the assumption that initially only the convective envelope is spun down in low mass stars. It is obtained that most of the angular momentum loss occurs prior to reaching the zero age main s...
The gravitational effect on induced charge density for an obliquely rotating neutron start
De Paolis, F; Qadir, A; Tarman, Işık Hakan (1999-11-01)
The effect on the induced charge density of the gravitational field of a rotating neutron star with its magnetic axis inclined with respect to the rotational axis is investigated. While gravitation increases the charge density the obliquity reduces it.
Pre-Main-Sequence evolution of rotating low-mass stars
Kızıloğlu, Nilgün (Springer Science and Business Media LLC, 1989-4)
The evolutionary behaviour of rotating low-mass stars in the mass range 0.2 and 0.9M ⊙ has been investigated during the pre-Main-Sequence phase. The angular momentum is conserved locally in radiative regions and totally in convective regions, according to a predetermined angular velocity distribution depending on the structure of the star. As the stars contract toward the zero-age Main Sequence, they spin up under the assumption that the angular momentum is conserved during the evolution of the stars. When ...
Observation of Z decays to four leptons with the CMS detector at the LHC
Chatrchyan, S.; et. al. (Springer Science and Business Media LLC, 2012-12-01)
The first observation of the Z boson decaying to four leptons in proton-proton collisions is presented. The analyzed data set corresponds to an integrated luminosity of 5.02 fb(-1) at root s = 7 TeV collected by the CMS detector at the Large Hadron Collider. A pronounced resonance peak, with a statistical significance of 9.7 sigma, is observed in the distribution of the invariant mass of four leptons (electrons and/or muons) with mass and width consistent with expectations for Z boson decays. The branching ...
Solar models: influence of equation of state and opacity
Yildiz, M; Kiziloglu, N (1997-10-01)
Solar models through evolutionary phases of gravitational contraction, pre-main sequence and MS phases, up to current age 4.5 x 10(9) yr. and 4.57 x 10(9) yr., were studied adopting different prescriptions for the equation of state (EOS) and different opacity tables.
Citation Formats
I. Kucuk, N. Kiziloglu, and R. Civelek, “Early pre-main sequence evolution of low mass stars,” ASTROPHYSICS AND SPACE SCIENCE, pp. 279–284, 1998, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/66544.