Results 41 to 50 of about 2,809 (189)
How Massive Star Clusters Form and Evolve: A Near-IR Survey of the W51 Complex
The Astronomical JournalWe present near-infrared JHK _s and narrowband H _2 (1–0) photometric observations of the W51A region, obtained with GTC EMIR, aiming to characterize its young stellar population, and provide mass estimates for individual cluster members and the ...
Aden Dawson +2 more
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Infrared Photometry of OH/IR Stars [PDF]
Symposium - International Astronomical Union, 1989 We have initiated a near infrared photometric study of OH/IR stars and proposed protoplanetary nebulae, using the 2.12 m telescope and the IR photometric system at the Observatorio Astronómico Nacional in Baja California, México.
Miriam Peña, Julieta Fierro
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Engineered Optical Fibers for Deep‐Tissue Applications
Advanced Optical Materials, Volume 14, Issue 10, 13 March 2026.This review establishes a foundational framework for designing optical fibers for deep‐tissue medicine. It systematically links material innovations like polymers and hydrogels with structural paradigms to enable state‐of‐the‐art diagnostics, including endoscopy and biosensing, and targeted therapeutics, guiding future clinical translation.
Yuzhen Li +16 more
wiley +1 more source
The Astrophysical JournalWe present a near-complete spectral energy distribution (SED) for an extrasolar world: the T8 brown dwarf 2MASS J04151954−0935066. Spanning from optical to mid-infrared (0.7–20.4 μ m) wavelengths, the SED for this substellar atmosphere is constructed ...
Sherelyn Alejandro Merchan +27 more
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Advanced Science, Volume 13, Issue 13, 3 March 2026.This study presents a novel “in vivo–in vitro” therapeutic strategy for spinal cord injury by leveraging magnetically responsive piezoelectric nanomaterials. These nanomaterials enable targeted delivery of localized electrical stimulation at the injury site through noninvasive external magnetic actuation, thereby promoting axonal regeneration and ...
Zhihang Xiao +9 more
wiley +1 more source
The Astrophysical Journal Letters, 2023 Selecting the first galaxies at z > 7 − 10 from JWST surveys is complicated by z < 6 contaminants with degenerate photometry. For example, strong optical nebular emission lines at z < 6 may mimic JWST/NIRCam photometry of z > 7–10 Lyman-break galaxies ...
Jed McKinney +15 more
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The Bochum Survey of the Southern Galactic Disk: III. Complete Data Release
Astronomische Nachrichten, Volume 347, Issue 3, March 2026.ABSTRACT The Southern Galactic Disk Survey (GDS) monitored a mosaic of 268 fields along a 6°$$ {6}^{{}^{\circ}} $$‐wide stripe in the southern Galactic disk with simultaneous observations in r′$$ {r}^{\prime } $$ and i′$$ {i}^{\prime } $$ (7m≲r′,i′≲18m$$ {7}^{\mathrm{m}}\lesssim {r}^{\prime },{i}^{\prime}\lesssim {18}^{\mathrm{m}} $$) from September ...
Julia Blex +8 more
wiley +1 more source
Period–Luminosity–Metallicity–Color Relations of Late-type Contact Binaries in the Big Data Era
The Astrophysical JournalBinary stars ubiquitous throughout the Universe are important. Contact binaries (CBs) possessing period–luminosity (PL) relations could be adopted as distance tracers. The PL relations of CBs are influenced by metallicity abundance and color index, which
Lian-Yun Song, Zhi-Jia Tian
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Infrared photometry of planetary nebulae.
The Astrophysical Journal, 1973 Photometric observations from 1.6 to 3.5 mu of 28 planetary nebulae are presented. Most of these emit 3.5- mu radiation in excess of that expected from thermal emission by ionized gas. When combined with the measurements of Willner, Becklin, and Visvanathan, the data show that the nebulae with relatively high densities are the more likely to emit ...
S. E. Persson, J. A. Frogel
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Regulation of Choroid Plexus Bicarbonate Transporters Following Intraventricular Hemorrhage in Mice
Cell Biochemistry and Function, Volume 44, Issue 3, March 2026.ABSTRACT Posthemorrhagic hydrocephalus is a severe complication to intraventricular hemorrhage. The condition results in enlarged brain ventricles and increased intracranial pressure due to accumulation of cerebrospinal fluid (CSF). In this study, two mouse models of intraventricular hemorrhage were investigated: injection of lysed red blood cells ...
Laura Øllegaard Johnsen +5 more
wiley +1 more source