Results 111 to 120 of about 166,438,504 (289)

Radial-velocity measurements of subdwarf B stars [PDF]

, 2011
Subdwarf B (sdB) stars are hot, subluminous stars which are thought to be core-helium burning with thin hydrogen envelopes. The mechanism by which these stars lose their envelopes has been controversial, but it has been argued that binary star ...
Copperwheat, CM, Maxted, P. F. L., Morales-Rueda, L., Morales-Rueda, L, Heber, U, L. Morales-Rueda, U. Heber, Copperwheat, C. M., Heber, U., C. M. Copperwheat, T. R. Marsh, Marsh, TR, Maxted, PFL, Marsh, T. R., P. F. L. Maxted   +14 more
core   +1 more source

Detailed Investigation of a W UMa Contact Binary with an Ultralow Mass Ratio and a Third Body as a Potential Merger Candidate

The Astrophysical Journal
The lower limit of the mass ratio in contact binaries remains uncertain, with observations suggesting systems exist below theoretical predictions. The stability of such very-low-mass-ratio systems is still debated.
Atila Poro, Ehsan Paki, Fahri Alicavus, Raul Michel   +3 more
doaj   +1 more source

Peripheral lysosomes recruit PLEKHG3 to focal adhesions and restrain protrusion dynamics

FEBS Letters, EarlyView.
Proximity‐dependent labeling at the LAMTOR complex revealed the Rho GEF PLEKHG3 as a lysosome‐proximal protein directing the study toward the influence of lysosome positioning on actin dynamics and cell motility. We show that PLEKHG3 colocalizes with lysosomes at focal adhesion sites and observe that forced peripheral dispersion of lysosomes hinders ...
Rainer Ettelt, Ana‐Maria Sandru, Georg Vucak, Sebastian Didusch, Biljana Riemelmoser, Karin Ehrenreiter, Markus Hartl, Lukas A. Huber, Manuela Baccarini   +8 more
wiley   +1 more source

Low-mass Eclipsing Binaries KIC 4908495, KIC 6466939, and KIC 9474485: Isolated Pre-main-sequence Systems?

The Astrophysical Journal
We present a detailed analysis of three Kepler eclipsing binaries, KIC 4908495, KIC 6466939, and KIC 9474485. Our analysis reveals that these systems are composed of components possessing a lower mass than our Sun with slight subsolar metallicities ...
Orkun Özdarcan
doaj   +1 more source

Golgi enzymes are retrieved from the plasma membrane to the trans‐Golgi network

FEBS Letters, EarlyView.
Golgi enzymes are traditionally considered resident proteins retained within the Golgi apparatus. Here, we demonstrate that a subset transiently reaches the cell surface and is subsequently retrieved to the trans‐Golgi network via retrograde transport. Using a nanobody‐based toolkit, we uncover a dynamic trafficking cycle of several Golgi enzymes.
Dominik P. Buser, Tina Junne
wiley   +1 more source

X-Shooting ULLYSES: Massive Stars at Low Metallicity X. Physical Parameters and Feedback of Massive Stars in the LMC N11 B Star-Forming Region [PDF]

Massive stars drive the ionization and mechanical feedback within young star-forming regions. The Large Magellanic Cloud (LMC) is an ideal galaxy for studying individual massive stars and quantifying their feedback contribution to the environment.
A. A. C. Sander, Bernini-Peron, M., Gormaz-Matamala, A.C., Kehrig, C., L. M. Oskinova, N. Morrell, D. Pauli, Todt, H., Vink, J.S., Gormaz-Matamala, A. C., O. G. Telford, A. Wofford, Shenar, T., A. Mehner, Crowther, P.A., J. S. Vink, T. Shenar, V. Ramachandran, W.-R. Hamann, Sander, A. A.C., S. R. Berlanas, van Loon, J. Th, McLeod, A. F., Telford, O. G., S. Reyero Serantes, Hamann, W. R., Mahy, L., Crowther, P. A., Kuiper, R., Vink, J. S., F. Tramper, Sander, A.C., Telford, O.G., Pauli, D., P. A. Crowther, Reyero Serantes, S., ud-Doula, A., Berlanas, S. R., H. Todt, Ramachandran, V., Leitherer, C., Tramper, F., Wofford, A., A. F. McLeod, V. M. A. Gómez-González, C. Leitherer, Gómez-González, V.M.A., Mehner, A., Oskinova, L. M., J. Th. van Loon, R. Kuiper, Gómez-González, V. M.A., Th. van Loon, J., Berlanas, S.R., Oskinova, L.M., A. ud-Doula, A. C. Gormaz-Matamala, C. Kehrig, McLeod, A.F., M. Bernini-Peron, L. Mahy, Morrell, N.   +61 more
core   +1 more source

Photometric and Spectroscopic Studies of Two Early-type Eclipsing Binaries

The Astrophysical Journal
Using high-precision photometric data from the Transiting Exoplanet Survey Satellite, medium-resolution spectroscopic data from the Large Sky Area Multi-Object Fiber Spectroscopy Telescope, and long-term eclipse timings, we provide orbital parameters for
Pengfei Ye, Kai Li, Fei Liu, Xiang Gao, Jing-Yi Wang   +4 more
doaj   +1 more source

Partial depletion of plasminogen activator inhibitor‐1 decreases subcutaneous fat cell hypertrophy and liver cholesterol in high‐fat‐fed female mice

FEBS Letters, EarlyView.
Obesity raises blood levels of PAI‐1, a protein linked to metabolic dysfunction‐associated steatotic liver disease in people with obesity. In female mice fed a high‐fat diet, partially lowering PAI‐1 led to smaller subcutaneous fat cells and lower liver cholesterol, without changing body weight or insulin sensitivity.
Claudia E. Ramirez Bustamante, Robert Sharp, Pradip K. Saha, Elizabeth S. Anaya, Elizabeth L. Lieu, Evelyn L. de Groot, Pooja Patel, Mi Jeong Heo, Aaron R. Cox, Kang Ho Kim, Sean M. Hartig   +10 more
wiley   +1 more source

OO Leo: An Active Contact Binary with Possible Solar-like Differential Rotation

The Astrophysical Journal
With Transiting Exoplanet Survey Satellite (TESS) high-precision photometry and Large Sky Area Multi-object Fiber Spectroscopic Telescope medium-resolution spectra, we present the first light and radial velocity curve analyses for the eclipsing binary OO
Zi-Bin Meng, Pei-Ru Wu, Yun-Xia Yu, Ke Hu, Fu-Yuan Xiang   +4 more
doaj   +1 more source

“X-Raying” a Be Star Disk: Fundamental Parameters of the Eclipsing Binary Be Star V658 Car

The Astrophysical Journal
Abstract With its two stellar eclipses and two disk attenuations per binary orbit, V658 Carinae stands out as the first clear eclipsing Be + sdOB system. This rare alignment offers a unique opportunity to probe the structure and dynamics of a Be star disk with unprecedented detail.
de Amorim, TH, Carciofi, AC, Labadie-Bartz, J, Silva, AC, Navarete, F, Rappaport, SA, Querido, P, Rubio, AC, Bjorkman, J, Gagliano, R, Terentev, I   +10 more
openaire   +5 more sources