Results 51 to 60 of about 4,313 (174)

The Evolution of Blue Stragglers Formed Via Stellar Collisions [PDF]

, 1998
We have used the results of recent smoothed particle hydrodynamic simulations of colliding stars to create models appropriate for input into a stellar evolution code.
C. J. Pritchet, Cameron A. C., Hills J. G., J. A. Ouellette, Lauzeral C., Mathys G., Mestel L., Podsiadlowski P., Tassoul M., Tout C. A., Vogt H.   +10 more
core   +3 more sources

Macrophages Mediate Mesoscale Brain Mechanical Homeostasis

Advanced Materials, EarlyView.
We investigated the role of infiltrating immune cells in sculpting the developing brain. Using Brillouin microscopy and active microrheology, we found microglia actively maintain tissue viscoelasticity. Moreover, colony stimulating factor one receptor (CSF1R)‐driven stromal remodeling alters brain mechanics in vivo. These findings link immune activity,
Woong Young So, Bailey Johnson, Patricia B. Gordon, Kevin S. Bishop, Hyeyeon Gong, Hannah A Burr, Jack Rory Staunton, Chenchen Handler, Khanh Loan Ly, Raman Sood, Giuliano Scarcelli, Kandice Tanner   +11 more
wiley   +1 more source

Blue straggler stars

This is a pre-print of a chapter for the Encyclopedia of Astrophysics (edited by I. Mandel, section editor F.R.N.
Wang, Chen, Ryu, Taeho
openaire   +2 more sources

FLIP: Transforming Consumer Projectors into Maskless Microscale Photopatterning Tools via Fresnel Lens Integration

Advanced Materials Technologies, EarlyView.
A low‐cost, maskless visible light photopatterning system has been developed by combining a consumer‐grade projector with a single Fresnel lens, generating the Fresnel Lens Integrated Projector (FLIP) system. FLIP enables flexible photopatterning of solid and gel films with features down to 30 µm and 135 µm, respectively.
Sridaran Rajagopal, Sofia Arshavsky‐Graham, Govind Kaigala   +2 more
wiley   +1 more source

Blue Straggler Stars: Early Observations that Failed to Solve the Problem

, 2014
In this chapter, I describe early ideas on blue stragglers, and various observations (some published, some not) that promised but failed to resolve the question of their origin.
A. Miglio, A. R. Sandage, A. R. Sandage, A. R. Sandage, A. Sarajedini, B. Margon, B. Niss, C. A. Murray, C. D. Bailyn, D. C. Morton, D. Pooley, E. M. Burbidge, F. Fusi Pecci, F. Hoyle, F. Paresce, F. R. Ferraro, G. Meynet, G. W. Preston, H. C. Arp, H. C. Arp, H. C. Arp, H. E. Bond, H. E. Bond, H. L. Johnson, H. Spinrad, I. Iben, J. A. Ahumada, J. A. Crawford, J. C. Wheeler, J. Smak, K. A. Montgomery, K. C. Freeman, K. M. Cudworth, L. L. Stryker, M. Livio, N. G. Roman, O. J. Eggen, O. J. Eggen, O. J. Eggen, O. J. Eggen, P. Guhathakurta, P. Hut, P. J. T. Leonard, P. Pesch, R. D. Cannon, R. D. Cannon, R. D. Cannon, R. D. Cannon, R. N. Manchester, R. P. Kraft, R.E. Cohen, T. A. Smecker-Hane, T. D. Kinman, V. Trimble, V. Trimble, W Hiltner, W. H. McCrea, W.L. W. Sargent, Y. Xin, Z. Kopal   +59 more
core   +1 more source

Modeling the radial distribution of blue stragglers in M3

The Astrophysical Journal, 1994
Recent surveys of the blue straggler (BS) population in the galactic globular cluster M3 (NGC 5272) give the first complete characterization of the number density of BSs as a function of radius over an entire globular cluster. The BSs in M3 are overabundant at large radii, and significantly underabundant at intermediate radii.
Sigurdsson, Steinn, Davies, Melvyn B., Bolte, Michael   +2 more
openaire   +2 more sources

Submicron Patterning Techniques for Perovskite Optoelectronics From Materials Challenges to Scalable Device Integration

Advanced Optical Materials, EarlyView.
This review highlights submicron patterning strategies for metal halide perovskites, focusing on solvent compatibility, resolution, and alignment toward scalable integration in advanced optoelectronic systems. Abstract Halide perovskites are promising materials for future optoelectronic and display systems.
Dante Ahn, Minz Lee, Youngsoo Jang, Gun Young Jung, Yusin Pak   +4 more
wiley   +1 more source

Monolithically Integrated Fourier Injected REsonator (FIRE) for Passive Coherent Laser Combination

Advanced Photonics Research, EarlyView.
Semiconductor diode‐based Fourier Injected REsonator (FIRE). The concept of free space FIRE, formerly known as the self‐Fourier cavity, is demonstrated for the first time on a chip‐scale device. A very high laser array coherence (97.7% fringe visibility), corresponding to single out‐of‐phase supermode operation, is reported.
Lance Sweatt, Xiaolei Zhao, Taylor LeVaur, Mohamed Baghdady, Mohan Ghimire, Md. Arefin Islam, Shafia Sultana, Kexin Li, Christopher J. Corcoran, Lin Zhu   +9 more
wiley   +1 more source

Photometry of the Globular Cluster NGC 5466: Red Giants and Blue Stragglers

, 2007
We present wide-field BVI photometry for about 11,500 stars in the low-metallicity cluster NGC 5466. We have detected the red giant branch bump for the first time, although it is at least 0.2 mag fainter than expected relative to the turnoff.
Eggleton P. P., Eric L. Sandquist, Ferraro F. R., Fusi Pecci F., Michael Bolte, Nassissie Fekadu, Piotto G., Zaggia S. R., Zoccali M.   +8 more
core   +1 more source

A MegaCam Survey of Outer Halo Satellites. VI: The Spatially Resolved Star Formation History of the Carina Dwarf Spheroidal Galaxy [PDF]

, 2016
We present the spatially resolved star formation history (SFH) of the Carina dwarf spheroidal galaxy, obtained from deep, wide-field g,r imaging and a metallicity distribution from the literature.
Côté, Patrick, de Boer, T. J. L., Djorgovski, S. G., Geha, Marla, Guzmán, Andrés E., Muñoz, Ricardo R., Santana, Felipe A., Simon, Joshua D., Stetson, Peter   +8 more
core   +3 more sources