A CONSTRAINT ON THE FORMATION TIMESCALE OF THE YOUNG OPEN CLUSTER NGC 2264: LITHIUM ABUNDANCE OF PRE-MAIN SEQUENCE STARS [PDF]
, 2016 The timescale of cluster formation is an essential parameter in order to understand the formation process of star clusters. Pre-main sequence (PMS) stars in nearby young open clusters reveal a large spread in brightness.
B. Lim +5 more
semanticscholar +1 more source
Magnetic Activity–Rotation–Age–Mass Relations in Late-pre-main-sequence Stars
The Astrophysical Journal, 2023 We study the four-dimensional relationships between magnetic activity, rotation, mass, and age for solar-type stars in the age range 5–25 Myr. This is the late-pre-main-sequence (l-PMS) evolutionary phase when rapid changes in a star's interior may lead ...
Konstantin V. Getman +2 more
doaj +1 more source
Pre-mainsequence stellar evolution in N-body models [PDF]
, 2014 We provide a set of analytic fits to the radii of pre-mainsequence stars in the mass range 0.1 < M/Msun < 8.0. We incorporate the formulae in N-body cluster models for evolution from the beginning of pre-main sequence. In models with 1,000 stars and high
Aarseth, Sverre J. +2 more
core +1 more source
The effect of starspots on the radii of low-mass pre-main-sequence stars [PDF]
, 2014 A polytropic model is used to investigate the effects of dark photospheric spots on the evo- lution and radii of magnetically active, low-mass (M < 0.5M⊙), pre-main sequence (PMS) stars.
R. Jackson, R. Jeffries
semanticscholar +1 more source
Dust Envelopes around Massive Young Stellar Objects [PDF]
Journal of Astronomy and Space Sciences, 2008 We investigate the spectral energy distributions (SEDs) of Massive Young Stellar Objects (MYSOs) using the various infrared observational data including the Infrared Space Observatory (ISO) data.
Kyung-Won Suh
doaj +1 more source
On the origin of the correlations between the accretion luminosity and emission line luminosities in pre-main-sequence stars [PDF]
, 2015 Correlations between the accretion luminosity and emission line luminosities (Lacc and Lline) of pre-main-sequence (PMS) stars have been published for many different spectral lines, which are used to estimate accretion rates.
I. Mendigut'ia +7 more
semanticscholar +1 more source
Open Astronomy, 2010 Using photometric data of infrared surveys, young stellar object (YSO) status is verified for 141 objects selected in our previous papers in the Cassiopeia and Camelopardalis segment of the Milky Way bounded by Galactic coordinates (l, b) = (132-158 ...
Straižys V., Kazlauskas A.
doaj +1 more source
Pre-Main Sequence Ap Star LkHα 324/B in LDN 988 Star Forming Region
Universe, 2023 We present results of the investigation of the star LkHα 324/B, which belongs to the starforming dark cloud LDN 988. Based on high resolution spectroscopy, we determined its fundamental parameters as Teff=11,175±130 K, log(L*/L⊙)=1.87±0.07.
Ilya Potravnov +3 more
doaj +1 more source
The -M relationship in pre-main sequence stars [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2006 Abstract We examine the recent data and analysis of Natta et al. concerning the accretion rate on to young stars as a function of stellar mass, and conclude that the apparently steep dependence of accretion rate on mass is strongly driven by selection/detection thresholds.
J. E. Pringle, Cathie J. Clarke
openaire +3 more sources
The theoretical calculation of the Rossby number and the `non-local' convective overturn time for pre-main sequence and early post-main sequence stars [PDF]
, 1995 This paper provides estimates of convective turnover time scales for Sun-like stars in the pre-main sequence and early post-main sequence phases of evolution, based on up-to-date physical input for the stellar models. In this first study, all models have
Yong -Cheol Kim, P. Demarque
semanticscholar +1 more source