Results 61 to 70 of about 241,576 (378)
Simulations of Stellar Collisions Involving Pre-Main Sequence Stars
, 2005 In this paper, we present the results of smoothed particle hydrodynamic (SPH) simulations of collisions between pre-main sequence stars and a variety of other kinds of stars. Simulations over a range of impact parameters and velocities were performed. We
Alison Sills +3 more
core +2 more sources
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
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
Pulsation in pre-main sequence stars [PDF]
Proceedings of the International Astronomical Union, 2015 AbstractAsteroseismology has been proven to be a successful tool to unravel details of the internal structure for different types of stars in various stages of evolution well after birth. We can now show that it has similar power for pre-main sequence (pre-MS) objects.
openaire +1 more source
Old pre-main-sequence stars [PDF]
Astronomy & Astrophysics, 2014 Young stars show evidence of accretion discs which evolve quickly and disperse with an e-folding time of $\sim$ 3Myr. This is in striking contrast with recent observations that suggest evidence for numerous $>30$ Myr old stars with an accretion disc in large star-forming complexes.
Scicluna, P +3 more
openaire +5 more sources
GalaxiesWe report new medium-resolution spectroscopy covering the wavelength range from 0.6 to 2.4 μm, as well as multi-epoch, multi-wavelength photometry, of the Class I high-mass embedded young stellar object Mol 12 (IRAS 05373+2349). It is embedded (AV≃12) in
Mauricio Tapia +3 more
doaj +1 more source
Nothing to hide: An X-ray survey for young stellar objects in the Pipe Nebula
, 2010 We have previously analyzed sensitive mid-infrared observations to establish that the Pipe Nebula has a very low star-formation efficiency. That study focused on YSOs with excess infrared emission (i.e, protostars and pre-main sequence stars with disks),
Agüeros +21 more
core +1 more source
A search for strong, ordered magnetic fields in Herbig Ae/Be stars [PDF]
, 2007 The origin of magnetic fields in intermediate-mass and high-mass stars is fundamentally a mystery. Clues toward solving this basic astrophysical problem can likely be found at the pre-main sequence (PMS) evolutionary stage. With this work, we perform the
Bagnulo, S. +4 more
core +2 more sources
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 stars in the stellar association N11 in the Large Magellanic Cloud [PDF]
, 2009 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 +43 more
core +1 more source