Pre-main-sequence stars in the Lagoon Nebula (M8) [PDF]
Abstract 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 Observatory, Chile).
Arias, Julia Inés+2 more
openaire +11 more sources
Summary of dissertation for the degree of Doctor of Sciences, Dissertation language: Bulgarian, DSc awarded 2023 by the Institute of Astronomy and NAO of the Bulgarian Academy of ...
Semkov, Evgeni
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THE HABITABLE ZONES OF PRE-MAIN-SEQUENCE STARS [PDF]
We calculate the pre-main-sequence HZ for stars of spectral classes F to M. The spatial distribution of liquid water and its change during the pre-main-sequence phase of protoplanetary systems is important in understanding how planets become habitable.
Ramses M. Ramirez, Lisa Kaltenegger
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Simulations of Stellar Collisions Involving Pre–Main‐Sequence Stars [PDF]
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
D. Laycock, Alison Sills
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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
Mamajek, Eric E., Pecaut, Mark J.
core +2 more sources
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
H2and CO Emission from Disks around T Tauri and Herbig Ae Pre–Main‐Sequence Stars and from Debris Disks around Young Stars: Warm and Cold Circumstellar Gas [PDF]
We present ISO Short-Wavelength Spectrometer observations of H2 pure-rotational line emission from the disks around low- and intermediate-mass pre-main-sequence stars as well as from young stars thought to be surrounded by debris disks.
W.‐F. Thi+10 more
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EXPORT: Optical photometry and polarimetry of Vega-type and pre-main sequence stars [PDF]
This paper presents optical UBVRI broadband photo-polarimetry of the EXPORT sample obtained at the 2.5m Nordic Optical Telescope. The database consists of multi-epoch photo-polarimetry of 68 pre-main-sequence and main-sequence stars.
R. D. Oudmaijer+22 more
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EXPORT: Spectral classification and projected rotational velocities of Vega-type and pre-main sequence stars [PDF]
In this paper we present the rst comprehensive results extracted from the spectroscopic campaigns car- ried out by the EXPORT (EXoPlanetary Observational Research Team) consortium.
A. Mora+21 more
openalex +2 more sources
Evolution of X-Ray Activity in <25 Myr Old Pre-main Sequence Stars [PDF]
Measuring the evolution of X-ray emission from pre-main-sequence (PMS) stars gives insight into two issues: the response of magnetic dynamo processes to changes in the interior structure, and the effects of high-energy radiation on protoplanetary disks ...
K. Getman+6 more
semanticscholar +1 more source