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Accretion onto Pre-Main-Sequence Stars
Annual Review of Astronomy and Astrophysics, 2016 Accretion through circumstellar disks plays an important role in star formation and in establishing the properties of the regions in which planets form and migrate. The mechanisms by which protostellar and protoplanetary disks accrete onto low-mass stars are not clear; angular momentum transport by magnetic fields is thought to be involved, but the ...
L. Hartmann, G. Herczeg, N. Calvet
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The potential of space observations for pulsating pre-main sequence stars [PDF]
EPJ Web of Conferences, 2017 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
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Keplerobservations of A–F pre-main-sequence stars in Upper Scorpius: discovery of six new δ Scuti and one γ Doradus stars [PDF]
, 2015 We present light curves and periodograms for 27 stars in the young Upper Scorpius association (age=$11 \pm 1$\,Myr) obtained with the Kepler spacecraft. This association is only the second stellar grouping to host several pulsating pre-main sequence (PMS)
V. Ripepi +5 more
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The Astrophysical JournalThe 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 gas temperature in flaring disks around pre-main sequence stars [PDF]
, 2004 A model is presented which calculates the gas temperature and chemistry in the surface layers of flaring circumstellar disks using a code developed for photon-dominated regions. Special attention is given to the influence of dust settling.
Bastiaan Jonkheid +3 more
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THE HABITABLE ZONES OF PRE-MAIN-SEQUENCE STARS [PDF]
The Astrophysical Journal, 2014 We calculate the pre-main-sequence habitable zone (HZ) for stars of spectral classes F–M. The spatial distribution of liquid water and its change during the pre-main-sequence phase of protoplanetary systems is important for understanding how planets ...
R. Ramirez, L. Kaltenegger
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Solar-like Oscillations in Accreting Pre-main-sequence Stars: Insights and Prospects [PDF]
The Astrophysical JournalWe present theoretical predictions for solar-like oscillators in the pre-main-sequence (pre-MS) phase of stellar evolution. Our pre-MS models start from a stellar seed of 0.01 solar masses that gains mass through accretion, offering an alternative ...
Johannes Jørgensen +4 more
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Accretion in the ρ-Ophiuchi pre-main sequence stars [PDF]
, 2006 Aims. The aim of this paper is to provide a measurement of the mass accretion rate in a large, complete sample of objects in the core of the star forming region p Oph. Methods.
A. Natta, L. Testi, S. Randich
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The Gaia-ESO Survey: lithium depletion in the Gamma Velorum cluster and inflated radii in low-mass pre-main-sequence stars [PDF]
Monthly notices of the Royal Astronomical Society, 2016 RDJ and RJJ acknowledge support from the UK Science and Technology Facilities Council (STFC). Based on data products from observations made with European Southern Observatory (ESO) Telescopes at the La Silla Paranal Observatory under programme ID 188.B ...
R. D. Jeffries +27 more
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Hipparcos observations of pre-main-sequence stars
Monthly Notices of the Royal Astronomical Society, 1997 We present first results of Hipparcos observations of nearby low-mass pre-main-sequence (PMS) stars (T Tauri and Herbig Ae/Be stars). The data obtained by Hipparcos allow us to derive weighted mean parallaxes for three major nearby star-forming regions (SFRs), Lupus, Chamaeleon I and Taurus–Auriga.
R. Wichmann +4 more
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