Results 141 to 150 of about 13,091 (256)

Blue Straggler Formation in Clusters

, 2010
Blue stragglers are thought to be formed from the merger or coalescence of two stars, but the details of their formation in clusters has been difficult to disentangle.
Sills, Alison
core   +1 more source

Binary Fraction in Galactic Star Clusters: FSR 866, NGC 1960, and STOCK 2

The Astronomical Journal
The study of binary stars in different astronomical environments offers insights into the dynamical state of the hosting stellar systems. The binary fraction in fact plays a crucial role in the dynamical evolution of stellar systems, regulating processes
L. Yalyalieva, A. Chemel, G. Carraro, E. Glushkova   +3 more
doaj   +1 more source

A prototype submersible sheathless flow cytometer designed for autonomous platforms

Limnology and Oceanography: Methods, EarlyView.
Abstract Development of submersible flow cytometers has allowed for continuous, in situ measurements of natural assemblages of phytoplankton cells. Here we introduce DeepCyte, a sensitive prototype submersible flow cytometer developed for deployment on autonomous platforms.
J. E. Swalwell, K. Cain, E. V. Armbrust
wiley   +1 more source

Once a Triple, Not Always a Triple: The Evolution of Hierarchical Triples That Yield Merged Inner Binaries

The Astrophysical Journal
More than half of all main-sequence (MS) stars have one or more companions, and many of those with initial masses 10 yr) companions. Furthermore, both BSS binaries and DWDs exhibit signatures of WD birth kicks.
Cheyanne Shariat, Smadar Naoz, Kareem El-Badry, Antonio C. Rodriguez, Bradley M. S. Hansen, Isabel Angelo, Alexander P. Stephan   +6 more
doaj   +1 more source

Ocean acidification at the crossroads I: Harmonizing unpurified and purified meta‐cresol purple spectrophotometric pHT measurements based on absorbance data

Limnology and Oceanography: Methods, EarlyView.
Abstract Consistent monitoring of seawater spectrophotometric pH on the total hydrogen ion scale (pHT) has been questioned by an evolving method, with changes in parameterization and the purity of the meta‐cresol purple (mCP). Using real seawater samples, we demonstrate that spectrophotometric pHT measurements obtained with unpurified (UNPUR) and ...
Marta Álvarez, Maribel I. García‐Ibáñez, Rubén Acerbi, Rocío Santiago‐Domenech, Elisa F. Guallart, Noelia M. Fajar, Lisandro Arbilla   +6 more
wiley   +1 more source

The Multiple Origin of Blue Straggler Stars: Theory vs. Observations

, 2014
In this chapter we review the various suggested channels for the formation and evolution of blue straggler stars (BSSs) in different environments and their observational predictions.
A. Hypki, A. Jorissen, A. M. Geller, A. M. Geller, A. M. Geller, A. S. Hamers, A. Tokovinin, B. W. Carney, B. W. Carney, C. Abate, D. Fabrycky, D. Raghavan, D. T. F. Weldrake, D. T. F. Weldrake, D. W. Latham, F. Antonini, F. R. Ferraro, F. R. Ferraro, H. B. Perets, H. B. Perets, H. B. Perets, H. B. Perets, J. G. Hills, J. M. Fregeau, J. M. Nemec, J. R. Hurley, L. G. Kiseleva, L. Lovisi, L. Lovisi, M. Auriere, M. B. Davies, M. L. Lidov, M. M. Shara, M. Mapelli, M. Mateo, N. Leigh, N. Leigh, P. Eggleton, P. J. T. Leonard, P. J. T. Leonard, P. J. T. Leonard, P. J. T. Leonard, P. J. T. Leonard, P. P. Eggleton, P. P. Eggleton, R. D. Mathieu, R. D. McClure, R. Kippenhahn, R. S. Harrington, S. Chatterjee, S. M. Rucinski, T. Dermine, T. Mazeh, W. Benz, W. H. McCrea, W. H. McCrea, W. I. Clarkson, W. Landsman, X. Chen, Y. Kozai   +59 more
core   +1 more source

WIYN Open Cluster Study. XCVII. An Extended Radial-velocity Survey and Spectroscopic Binary Orbits in the Open Cluster NGC 188

The Astronomical Journal
We present 35 new spectroscopic-binary orbits from our extended radial-velocity (RV) survey of the old (6.4 ± 0.2 Gyr) open cluster NGC 188. Using data from the WIYN Open Cluster Study (WOCS) and APOGEE-2, this work nearly doubles the temporal baseline ...
Ritvik Sai Narayan, Evan Linck, Robert D. Mathieu, Aaron M. Geller   +3 more
doaj   +1 more source

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

Laser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil, Rajshree Swarnkar, Jonas L. Moos, Sebastian Töpfer, Sergio Tovar‐Pérez, Jorge Fuenzalida, Markus Gräfe   +6 more
wiley   +1 more source

Chemical and kinematical properties of Blue Straggler stars in Galactic globular clusters [PDF]

, 2013
L. Lovisi
openalex   +1 more source

Stellar Spin-down in Post-mass-transfer Binary Systems

The Astrophysical Journal
Motivated by measurements of the rotation speed of accretor stars in post-mass-transfer (post-MT) systems, we investigate how magnetic braking affects the spin-down of individual stars during binary evolution with the MESAbinary module.
Meng Sun, Seth Gossage, Emily M. Leiner, Aaron M. Geller   +3 more
doaj   +1 more source