Results 41 to 50 of about 14,196,004 (190)
A Recent Reacceleration of the Local Bubble Revealed by Kinematics of Young Star Associations
The Astrophysical Journal LettersThe low-density region of the interstellar medium where the Sun is located is known as the Local Bubble, a cavity filled with high-temperature and low-density plasma that may be created by a series of supernova (SN) explosions over the past 14 Myr ...
Guang-Ya Zeng +4 more
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Pre main sequence stars as UV sources for the World Space Observatory-UV mission
, 2011 Pre-main sequence stars are bright UV (UV) sources compared with their main sequence analogues. The source of this excess is the high energy processes associated with the physics of accretion/outflow during early stellar evolution.
Sergei A. Lamzin +3 more
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PRE-MAIN-SEQUENCE STARS IN THE CEPHEUS FLARE REGION [PDF]
The Astrophysical Journal Supplement Series, 2009 61 pages, 27 figures, 8 tables; accepted for publication by ...
Kun, M. +4 more
openaire +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
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Searching for solar-like oscillations in pre-main sequence stars using [PDF]
, 2021 Context. In recent years, our understanding of solar-like oscillations from main sequence to red giant stars has improved dramatically thanks to pristine data collected from space telescopes.
E. W. Guenther +15 more
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Asteroseismology of intermediate mass stars : pre-main sequence evolution [PDF]
, 2007 xiv, 130 leaves : ill. ; 29 cm.Includes abstract.Includes bibliographical references (leaves 126-130).We investigate in detail the potential of asteroseismology in exploring the structure of intermediate mass (1.6 ≤ M⊙ ≤ 5.0) pre-main ...
Tanner, Joel
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Photospheric abundance analysis of low mass pre-main sequence stars [PDF]
, 1992 The atmospheres of low mass pre-main sequence stars are extremely valuable tools for probing the composition of the star-forming interstellar medium. This thesis investigation uses photospheric abundance analysis techniques to determine metal abundances ...
Padgett, Deborah Lynne
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The Astrophysical JournalWe present results from simultaneous far-ultraviolet (FUV) and near-ultraviolet (NUV) observations of T Tauri stars (TTSs) in the Taurus molecular cloud with UVIT/AstroSat. This is the very first UVIT study of TTSs.
Prasanta K. Nayak +6 more
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An HST Study of the Substellar Population of NGC 2024
The Astrophysical Journal, 2023 We performed an HST/WFC3-IR imaging survey of the young stellar cluster NGC 2024 in three filters probing the 1.4 μ m H _2 O absorption feature, characteristic of the population of low-mass and substellar-mass objects down to a few Jupiter masses.
Massimo Robberto +8 more
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An Eccentric Binary with a Misaligned Circumbinary Disk
The Astrophysical Journal LettersWe present spectroscopic and photometric observations of Bernhard-2, which was previously identified as a candidate system that hosts a misaligned circumbinary disk. Our spectroscopic measurements confirm that Bernhard-2 indeed contains an eccentric ( e =
Zhecheng Hu +6 more
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