Results 211 to 220 of about 338 (243)

Extended main sequences in star clusters. [PDF]

open access: yesFundam Res
Li C, Milone AP, Sun W, de Grijs R.
europepmc   +1 more source

Photonic Properties of InAs Quantum Dots by Post‐Growth Maskless Site‐Selective Focused Ion Beam Implantation

open access: yesNanophotonics, Volume 15, Issue 12, 25 June 2026.
A low‐energy focused ion beam process achieves localized spectral modification of InAs quantum dots. By leveraging low ion straggle and a compact damage volume, this methodology offers unique spatial control and accuracy. This maskless approach provides a scalable platform for site‐selective engineering for advanced photonic integrated circuits and ...
Mehdi Ahmadian   +8 more
wiley   +1 more source

Is altitude‐induced polycythaemia an unintended evolutionary mistake?

open access: yes
Experimental Physiology, Volume 111, Issue 7, Page 3117-3121, 1 July 2026.
Peter D. Wagner, Tatum S. Simonson
wiley   +1 more source

Radial velocities of blue stragglers in M3

Publications of the Astronomical Society of the Pacific, 1983
The authors have obtained 1 A resolution spectra of five blue stragglers in M3 all with mv ≥ 17.3 using the MMT spectrograph and photon-counting Reticon. The spectra cover the range 4580 A to 5450 A, and except for Hβ are devoid of strong features. From measurements of the Hβ lines in the five blue stragglers and three velocity standards the authors ...
F. H., Jr. Chaffee, H. D. Ables
openaire   +1 more source

Allan Sandage: Blue Stragglers

2021
One of the more recent stellar discoveries was made by noticing something out of place in globular cluster Messier 3 (M3) (Fig. 19.1).
openaire   +1 more source

Are there really blue stragglers in Per OB1?

Astrophysics and Space Science, 1995
The spatial distribution of O-type stars projected onto the Per OB1 association has been investigated. From the limited data available we find evidence to suggest that there are several distinct clusters of early type stars in the association's line of sight.
Martin Beech, Robert W. Slawson
openaire   +1 more source

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