Results 1 to 10 of about 215,557 (335)
Tracing early stellar evolution with asteroseismology: pre-main sequence stars in NGC 2264 [PDF]
Asteroseismology has been proven to be a successful tool to unravel details of the internal structure for different types of stars in various stages of their main sequence and post-main sequence evolution.
Zwintz Konstanze +4 more
doaj +4 more sources
Magnetic Activity–Rotation–Age–Mass Relations in Late-pre-main-sequence Stars [PDF]
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
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Pre-main-sequence stars in the Lagoon Nebula (M8) [PDF]
We report the discovery of new pre-main sequence (PMS) stars in the Lagoon Nebula (M8) at a distance of 1.25 kpc, based on intermediate resolution spectra obtained with the Boller & Chivens spectrograph at the 6.5-m Magellan I telescope (Las Campanas ...
J. I. Arias, R. H. Barbá, N. Morrell
openalex +7 more sources
The surface magnetic fields of pre-main-sequence stars and zero-age main-sequence stars are notably strong, resulting in the generation of numerous spots and the emission of bright chromospheric lines.
Mai Yamashita, Yoichi Itoh, Shin Toriumi
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The potential of space observations for pulsating pre-main sequence stars [PDF]
The first asteroseismic studies of pre-main sequence (pre-MS) pulsators have been conducted based on data from the space telescopes MOST and CoRoT with typical time bases of less than 40 days.
Zwintz Konstanze
doaj +3 more sources
INTRINSIC COLORS, TEMPERATURES, AND BOLOMETRIC CORRECTIONS OF PRE-MAIN-SEQUENCE STARS [PDF]
We present an analysis of the intrinsic colors and temperatures of 5-30 Myr old pre-main sequence (pre-MS) stars using the F0 through M9 type members of nearby, negligibly reddened groups: Eta Cha cluster, TW Hydra Association, Beta Pic Moving Group, and
Mark J. Pecaut, Eric E. Mamajek
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Comparative seismology of pre- and main sequence stars in the instability strip [PDF]
Pulsational properties of 1.8 M$_{\odot}$ stellar models covering the latest stages of contraction toward the main sequence up to early hydrogen burning phases are investigated by means of linear nonadiabatic analyses.
M. Suran +4 more
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Abundance anomalies in pre-main-sequence stars [PDF]
The effects of atomic diffusion on internal and surface abundances of A and F pre-main-sequence stars with mass loss are studied in order to determine at what age the effects materialize, as well as to further understand the processes at play in HAeBe ...
M. Vick +3 more
core +10 more sources
Pre-main sequence stars in the stellar association N11 in the Large Magellanic Cloud [PDF]
Magellanic Clouds are of extreme importance to the study of the star formation process in low metallicity environments. In this paper we report on the discovery of pre-main sequence candidates and young embedded stellar objects in N11 located in the ...
A. Vallenari, E. Chiosi, R. Sordo
openalex +4 more sources
Simulating the Sensitivity to Stellar Point Sources of Chandra X-Ray Observations
The Chandra Cygnus OB2 Legacy Survey is a wide and deep X-ray survey of the nearby and massive Cygnus OB2 association. The survey has detected ∼8000 X-ray sources, the majority of which are pre-main-sequence X-ray-emitting young stars in the association ...
Nicholas J. Wright +4 more
doaj +1 more source

