Results 171 to 180 of about 1,757 (195)

Coronal Structure in M Dwarf Stars

1996
In view of the importance of these objects as observational probes for theories of stellar dynamos and coronal heating, as well as their potentially important role in the galactic environment, we implemented a program of pointed ROSAT PSPC observations of selected M dwarfs in the solar neighborhood.
M. S. Giampapa, R. Rosner, V. Kashyap, T. A. Fleming, J. H. M. M. Schmitt, J. A. Bookbinder   +5 more
openaire   +1 more source

Photometry of Dwarf K and M Stars

Publications of the Astronomical Society of the Pacific, 1988
Broad-band UBVRI photometry is presented for 50 dwarf K and M stars, most without previou photometry, from the lists of Vyssotsky.
John Booth, Joseph Caruso, E. W. Weis
openaire   +1 more source

The Internal Structure of M Dwarf Stars

Publications of the Astronomical Society of Japan, 1960
Abstract Models for M dwarfs which consist of a convective envelope and a radiative core are computed with the effects of electron degeneracy taken into account. The results show that in the middle M dwarf, such as Krüger 60A, O2 Eri C and Krüger 60B, the convective envelope extends inward attaining to more than 40% of the stellar radius
openaire   +1 more source

Abundance Survey of M and K Dwarf Stars

Nuclear Physics A, 2005
We report the measurement of chemical abundances in 35 low-mass main sequence (M and K dwarf) stars. We have measured the abundance of 12 elements in Kapteyn's Star, a nearby halo M subdwarf. The abundances indicate an iron abundance of [Fe/H] = −0.98, which is about 0.5 dex smaller than that measured in the only previous published measurement using ...
Vincent M. Woolf, George Wallerstein
openaire   +1 more source

Reducing brassinosteroid signalling enhances grain yield in semi-dwarf wheat

Nature, 2023
Jie Liu
exaly  

A trail of dark-matter-free galaxies from a bullet-dwarf collision

Nature, 2022
Pieter van Dokkum, Zili Shen, Sebastian Trujillo-Gomez   +2 more
exaly  

A Jovian analogue orbiting a white dwarf star

Nature, 2021
J W Blackman, David Bennett, Andrew A Cole   +2 more
exaly  

A giant planet candidate transiting a white dwarf

Nature, 2020
Andrew Vanderburg, Saul A Rappaport, Siyi Xu   +2 more
exaly  

A white dwarf accreting planetary material determined from X-ray observations

Nature, 2022
Tim Cunningham, Peter J Wheatley, Pier-Emmanuel Tremblay   +2 more
exaly  

Black-hole-triggered star formation in the dwarf galaxy Henize 2-10

Nature, 2022
Zachary Schutte, Amy E Reines
exaly