Results 61 to 70 of about 116,076 (286)

Stellar Winds on the Main-Sequence II: the Evolution of Rotation and Winds

, 2015
Aims: We study the evolution of stellar rotation and wind properties for low-mass main-sequence stars. Our aim is to use rotational evolution models to constrain the mass loss rates in stellar winds and to predict how their properties evolve with time on
Brott, I., Güdel, M., Johnstone, C. P., Lüftinger, T.   +3 more
core   +1 more source

Modeling Stellar Activity-rotation Relations in Unsaturated Cool Stars [PDF]

, 2021
Alison Farrish, D. M. Alexander, Christopher M. Johns‐Krull, Minjing Li   +3 more
openalex   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source

The Relationship of Stellar Radius Inflation to Rotation and Magnetic Starspots at 10–670 Myr

The Astrophysical Journal Letters
Active, low-mass stars are widely observed to have radii that are larger than predicted by standard stellar models. Proposed mechanisms for this radius inflation generally involve stellar magnetism, either in the form of added pressure support in the ...
Lyra Cao, Keivan G. Stassun
doaj   +1 more source

Rotation- and temperature-dependence of stellar latitudinal differential rotation

, 2005
More than 600 high resolution spectra of stars with spectral type F and later were obtained in order to search for signatures of differential rotation in line profiles.
Reiners, Ansgar
core   +1 more source

The Resolved Structure and Dynamics of an Isolated Dwarf Galaxy: A VLT and Keck Spectroscopic Survey of WLM [PDF]

, 2012
We present spectroscopic data for 180 red giant branch stars in the isolated dwarf irregular galaxy WLM. Observations of the Calcium II triplet lines in spectra of RGB stars covering the entire galaxy were obtained with FORS2 at the VLT and DEIMOS on ...
Abadi, Alan W. McConnachie, Alyson M. Brooks, Andrew A. Cole, Appenzeller, Bender, Bigiel, Bolatto, Bovill, Bresolin, Brooks, Brooks, Demarque, Dolphin, Eline Tolstoy, Fuchs, Gallouet, Geha, Geha, Giuseppina Battaglia, Gnedin, Górski, Hargreaves, Hidalgo, Hill, Hinz, Hodge, Hunter, Ibata, Irwin, J. Trevor Mendel, Jackson, Jackson, Karachentsev, Kazantzidis, Kepley, Kim A. Venn, Krumholz, Kuhlen, Lacey, Leaman, Leaman, Lee, Leroy, Lynden-Bell, Madau, Markwardt, Martínez-Delgado, Mayer, Mayer, Melotte, Mike J. Irwin, Mo, Moore, Navarro, Peñarrubia, Plummer, Pritzl, Ricotti, Robertson, Robertson, Rodrigo A. Ibata, Ryan Leaman, Schruba, Sellwood, Seth, Skillman, Tatton, Tolstoy, Urbaneja, van der Marel, van der Marel, Venn, Venn, Walker, Walker, Whiting, Yoachim, Łokas   +78 more
core   +2 more sources

Matrix metalloproteinase‐9 regulates cell adhesion and membrane protrusive activity of ovarian cancer cells

FEBS Open Bio, EarlyView.
Matrix metalloproteinase‐9 (MMP9) drives ovarian cancer progression. Using MMP9‐null cells (M9‐KO) created from ovarian cancer cells, we found MMP9 loss did not block Epidermal Growth Factor (EGF)‐driven E‐cadherin dissolution or EMT but delayed and reduced EGF‐driven membrane protrusions. Transient MMP9 re‐expression drove membrane protrusion.
Claire Strauel, Sam Bennett, Natalie Ehlinger, Nelson Cook, Katelyn Marvin, Caleb L. Lines, Sam Reyes, Brooke Kirby, Shawn M. Ellerbroek   +8 more
wiley   +1 more source

Photometric magnetic-activity metrics tested with the Sun: application to Kepler M dwarfs

Journal of Space Weather and Space Climate, 2014
The Kepler mission has been providing high-quality photometric data leading to many breakthroughs in the exoplanet search and in stellar physics. Stellar magnetic activity results from the interaction between rotation, convection, and magnetic field ...
Mathur Savita, Salabert David, García Rafael A., Ceillier Tugdual   +3 more
doaj   +1 more source

Are Dwarf Galaxies Dominated by Dark Matter?

, 2011
Mass models for a sample of 18 late-type dwarf and low surface brightness galaxies show that in almost all cases the contribution of the stellar disks to the rotation curves can be scaled to explain most of the observed rotation curves out to two or ...
Begeman, Bell, Bershady, Binggeli, Bizyaev, Bosma, Bottema, Bottema, Broeils, Broeils, Casertano, Côté, Côté, Côté, de Blok, de Blok, de Blok, de Grijs, Dutton, Israel, J. M. van der Hulst, Kalnajs, Kim, Nilson, Noordermeer, Persic, Pfenniger, R. A. Swaters, R. Sancisi, Rhee, Sackett, Sancisi, Sancisi, Sanders, Schwarzkopf, Simon, Skillman, Spekkens, Sung, Swaters, Swaters, Swaters, T. S. van Albada, Valenzuela, Verheijen   +44 more
core   +5 more sources

YlmG1 is localized exclusively to the chloroplast envelope membrane and is involved in preprotein translocation in Arabidopsis thaliana

FEBS Open Bio, EarlyView.
Cytosolically synthesized chloroplast preproteins are translocated across the outer and inner envelope membranes through translocons called TOC and TIC, respectively. In green algae and plants, the TIC core is composed of essential membrane proteins, Tic12, Tic20, and Tic214.
Mengyi Li, Xueyang Zhao, Masato Nakai
wiley   +1 more source