Results 231 to 240 of about 40,171 (264)

Low-Mass Stars and Their Companions

2017
In this thesis, I present seven studies aimed towards better understanding the demographics and physical properties of M dwarfs and their companions. These studies focus in turn on planetary, brown dwarf, and stellar companions to M dwarfs. I begin with an analysis of radial velocity and transit timing analyses of multi-transiting planetary systems ...
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A low-mass star with a large-mass planet

Science, 2023
A large planet orbiting a very low-mass star challenges theories of planet ...
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The formation of low-mass stars

Publications of the Astronomical Society of the Pacific, 1989
Visible to millimeter wavelength observations of the global and individual aspects of low-mass star formation are discussed. Infrared and millimeter-wave techniques reveal large collections of dust-embedded young stellar objects associated with the densest regions of molecular clouds.
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Plasmon decay into low-mass bosons in stars

Physical Review D, 1988
A low-mass boson a, if it couples by a two-photon vertex, can be produced in the plasma decay process ${\ensuremath{\gamma}}_{t}$\ensuremath{\rightarrow}${\ensuremath{\gamma}}_{l}$+a and in the plasma coalescence process ${\ensuremath{\gamma}}_{t}$+${\ensuremath{\gamma}}_{l}$\ensuremath{\rightarrow}a, where ${\ensuremath{\gamma}}_{t}$ and ${\ensuremath{
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Opacity problems in cool low mass stars

International Astronomical Union Colloquium, 1994
In this contribution we want to discuss M star atmospheres and their dependence on molecular opacities. A star belongs to the spectral class M if its optical and infrared spectrum shows strong bands of TiO and numerous strong metal lines so that for wavelengths < 4000 Å there is “hardly any flux left” (Jaschek & Jaschek 1987).
Michael Scholz, Rainer Wehrse
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The Formation of Low Mass Stars

1999
The- question of the origin of stars is one of the most fundamental of astronomy. Yet, despite thousands of years of stellar observation, and early speculations by Newton and Laplace, it has only been in the latter part of the present century that the investigation of star formation has become an active discipline of astrophysical research.
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Low Mass Star Formation

1999
We review the basic ideas and key processes in low mass star formation with three goals. First, to introduce and explain the concepts and nomenclature frequently used in the literature. Second, to present a simplified, but (hopefully) coherent picture of low mass star formation. Third, to point out some of the important issues that are not yet resolved.
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Ion Mobility Mass Spectrometry (IM-MS) for Structural Biology: Insights Gained by Measuring Mass, Charge, and Collision Cross Section

Chemical Reviews, 2023
Perdita E Barran
exaly  

Applications of Charge Detection Mass Spectrometry in Molecular Biology and Biotechnology

Chemical Reviews, 2022
Martin F Jarrold
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Liquid chromatography–tandem mass spectrometry for clinical diagnostics

Nature Reviews Methods Primers, 2022
Stefani N Thomas, Deborah French, Paul J Jannetto   +2 more
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