Results 121 to 130 of about 180,740 (304)

Washington Photometry of the Red Giant Branch in NGC 6388

The Astronomical Journal, 2007
We present Washington photometry of the giant branches of the relatively metal-rich globular cluster NGC 6388 and compare it with 47 Tuc. By examining the spatial distribution of stellar colors across the red giant branch and using spectroscopic data on several bright giants, we found that NGC 6388's center is affected by differential reddening of at ...
Naydene Hays, Naydene Hays, George Wallerstein, Ricardo Covarrubias, Ricardo Covarrubias, Joanne Hughes   +5 more
openaire   +2 more sources

Degradation strategies for structural characterization of insoluble synthetic polymers by mass spectrometry

Mass Spectrometry Reviews, EarlyView.
Abstract With the advent of soft ionization techniques such as electrospray (ESI) and matrix‐assisted laser desorption/ionization (MALDI) to produce intact gas‐phase ions from nonvolatile macromolecules, mass spectrometry has become an essential technique in the field of polymeric materials.
Thierry N. J. Fouquet, Robert B. Cody, Laurence Charles   +2 more
wiley   +1 more source

Systematics in the Cepheid and TRGB Distance Scales: Metallicity Sensitivity of the Wesenheit Leavitt Law

The Astrophysical Journal
Using an updated and significantly augmented sample of Cepheid and tip of the red giant branch (TRGB) distances to 28 nearby spiral and irregular galaxies, covering a wide range of metallicities, we have searched for evidence of a correlation of the zero-
Barry F. Madore, Wendy L. Freedman
doaj   +1 more source

Expert Perspective: Hematologic Malignancies and Vasculitis

Arthritis &Rheumatology, EarlyView.
Michelle L. Robinette, Hetty E. Carraway
wiley   +1 more source

Flowing in History: Reflecting on Past Practices and Their Influence on the Health of Richmond River Catchment, New South Wales, Australia

River Research and Applications, EarlyView.
ABSTRACT The Richmond River forms part of the coastal region of New South Wales (NSW) Australia, and is of great environmental, social, and economic importance. The history of the river reflects its role in providing the needs upon which human life depends—water, fertile soil, and food.
Amanda Reichelt‐Brushett, Adele Wessell, Caroline Sullivan, Michael Wood   +3 more
wiley   +1 more source

Rotation in sdB stars as revealed by stellar oscillations

Open Astronomy, 2018
An interesting opportunity offered by the detection of stellar oscillations is the possibility to infer the internal rotation rate of a star through the so-called rotational splittings. Such seismic measurements remained rather scarce for hot B subdwarf (
Charpinet Stephane, Giammichele Noemi, Zong Weikai, Van Grootel Valérie, Brassard Pierre, Fontaine Gilles   +5 more
doaj   +1 more source

Orbital effects of Sun's mass loss and the Earth's fate

, 2010
I calculate the classical effects induced by an isotropic mass loss of a body on the orbital motion of a test particle around it. By applying my results to the phase in which the radius of the Sun, already moved to the Red Giant Branch of the Hertzsprung-
Iorio, Lorenzo
core   +1 more source

Small-amplitude Red Giants Elucidate the Nature of the Tip of the Red Giant Branch as a Standard Candle

The Astrophysical Journal Letters
Abstract The tip of the red giant branch (TRGB) is an important standard candle for determining luminosity distances. Although several 105 small-amplitude red giant stars (SARGs) have been discovered, variability was previously considered irrelevant for the TRGB as a standard candle.
Richard I. Anderson, Nolan W. Koblischke, Laurent Eyer   +2 more
openaire   +3 more sources

From Membrane Composition to Antimicrobial Strategies: Experimental and Computational Approaches to AMP Design and Selectivity

Small, EarlyView.
Antimicrobial peptides (AMPs) are promising candidates for next‐generation antibiotics, acting through mechanisms such as membrane disruption and intracellular targeting. This review examines how variations in bacterial membrane composition critically influence AMP activity.
Paolo Rossetti, Marius F.W. Trollmann, Christina Wichmann, Thomas Gutsmann, Christian Eggeling, Rainer A. Böckmann   +5 more
wiley   +1 more source

Evolved Massive Stars at Low Metallicity. VII. The Lower Mass Limit of the Red Supergiant Population in the Large Magellanic Cloud

The Astrophysical Journal
The precise definition of the lower mass limit of red supergiant stars (RSGs) is an open question in astrophysics and does not attract much attention.
Ming Yang, Bo Zhang, Biwei Jiang, Jian Gao, Yi Ren, Shu Wang, Man I Lam, Hao Tian, Changqing Luo, Bingqiu Chen, Jing Wen   +10 more
doaj   +1 more source