Results 101 to 110 of about 90,215 (275)

Adsorption of Helium on Cationic or Anionic Tetracene and Pentacene

Small Structures, Volume 7, Issue 1, January 2026.
How does the arrangement of helium atoms that are adsorbed on tetracene or pentacene ions change with increasing coverage? When does the adsorption layer change from 1D to 2D, and to 3D? Is the transition abrupt? Are the helium atoms localized? Is the arrangement the same for cations and anions? What changes as the acene grows in length?
Miriam Kappe, Florent Calvo, Rasif William, Bilal Rasul, Masoomeh Mahmoodi‐Darian, Paul Scheier, Olof Echt   +6 more
wiley   +1 more source

STELLAR POPULATIONS OF ULTRALUMINOUS INFRARED GALAXIES [PDF]

The Astrophysical Journal, 2011
8 pages, 10 figures, 1 table.
Hou, L. G., Han, J. L., Kong, M. Z., Wu, Xue-Bing   +3 more
openaire   +2 more sources

Halfway to the Peak: The JWST MIRI 5.6 μm Number Counts and Source Population

The Astrophysical Journal
We present an analysis of eight JWST Mid-Infrared Instrument (MIRI) 5.6 μ m images with 5 σ depths of ≈0.1 μ Jy. We detect 2854 sources within our combined area of 18.4 arcmin ^2 .
Leonid Sajkov, Anna Sajina, Alexandra Pope, Stacey Alberts, Lee Armus, Duncan Farrah, Jamie Lin, Danilo Marchesini, Jed McKinney, Sylvain Veilleux, Lin Yan, Jason Young   +11 more
doaj   +1 more source

The Araucaria Project: Precise distances to Local Group galaxies from near-infrared photometry of RR Lyrae stars

EPJ Web of Conferences, 2017
We present results of the Araucaria Project’s investigation of RR Lyrae stars as distance indicators in nearby galaxies. With an aid of near-infrared period-luminositymetallicity relations available in the literature we determined distance moduli to five
Karczmarek Paulina
doaj   +1 more source

Dust Properties and Star-Formation Rates in Star-Forming Dwarf Galaxies

, 2007
We have used the Spitzer Space Telescope to study the dust properties of a sample of star-forming dwarf galaxies. The differences in the mid-infrared spectral energy distributions for these galaxies which, in general, are low metallicity systems ...
Emeric Le Floc’h, J. J. Salzer, J. L. Rosenberg, J. R. Houck, M. L. N. Ashby, Madau P., Markarian B. E., Roche P. F., S. P. Willner, V. Charmandaris, Yanling Wu   +10 more
core   +1 more source

Stellar populations of a sample of far-infrared AGN and non-AGN green valley galaxies [PDF]

, 2022
Antoine Mahoro, M. Pović, P. Väisänen, Phéneas Nkundabakura, K. van der Heyden   +4 more
openalex   +1 more source

An Analysis of the Exposure History of Apollo 17 Soils: Exploring Relationships Between Lunar Soil Maturity Indices

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Analysis of space weathering features in lunar regolith using transmission electron microscopy (TEM) allows researchers to characterize the surface exposure timescale of individual grains from the Moon. TEM analysis of regolith grains from Apollo 17 scoop samples, collected from five different locations in the Taurus‐Littrow Valley (TLV), each
J. A. McFadden, M. S. Thompson
wiley   +1 more source

New Infrared Seyfert Galaxies

, 1998
We present optical spectra for new infrared Seyfert galaxies obtained with the 2.16m telescope at Beijing Astronomical Observatory (BAO). After wavelength and flux calibration, they are classified by the degree of nuclear activity: nine Seyfert 2 and three Seyfert 3 galaxies.
Gu, Q. -S., Huang, J. -H., Su, H. -J., Shang, Z. -H.   +3 more
openaire   +2 more sources

Stellar population analysis on local infrared-selected galaxies

, 2009
To study the stellar population of local infrared galaxies, which contain star-forming galaxies, composite galaxies, LINERs, and Seyfert 2s. We also want to find whether infrared luminosity and spectral class have any effects on their stellar populations.
Adelman-McCarthy, Alongi, Asari, Baldwin, Balogh, Bernardi, Bica, Bica, Boisson, Boisson, Bonatto, Bressan, Brinchmann, Bruzual, Bruzual, Calzetti, Calzetti, Cao, Cardelli, Chabrier, Charlot, Chen, Cid Fernandes, Cid Fernandes, Cid Fernandes, Cid Fernandes, Cid Fernandes, Cid Fernandes, Elbaz, Elbaz, F. Hammer, Faber, Fagotto, Fagotto, Flores, Fukugita, G. H. Zhong, Girardi, González Delgado, González Delgado, Greene, Greene, Hammer, Hammer, Heckman, Helou, Joguet, Kauffmann, Kauffmann, Kewley, Kewley, Koleva, Kong, Koski, Le Borgne, Liang, Liang, Mateus, Papovich, Pettini, Raimann, Riffel, Sanders, Saunders, Schlegel, Schmitt, Schmitt, Seaton, Shuder, Smith, Soifer, Stasinska, Stasinska, Stasinska, Storchi-Bergmann, Stoughton, Strauss, Sánchez-Blázquez, Tinsley, Tremonti, Vazdekis, Veilleux, Veilleux, Wang, Wang, Westera, Worthey, X. Y. Chen, Y. C. Liang, Y. H. Zhao, Zheng, Zheng   +91 more
core   +1 more source

Formation of Asteroid (16) Psyche by a Giant Impact

Journal of Geophysical Research: Planets, Volume 131, Issue 1, January 2026.
Abstract Asteroid (16) Psyche is the largest likely metal‐rich asteroid in the Solar System and the target of the NASA Psyche mission. The mission aims to determine whether the asteroid is the core of a differentiated planetesimal that lost its mantle via a giant impact.
Saverio Cambioni, Benjamin P. Weiss, Namya Baijal, Robert Melikyan, Erik Asphaug, John B. Biersteker, Richard P. Binzel, William F. Bottke, Samuel W. Courville, Linda T. Elkins‐Tanton, David J. Lawrence, José M. G. Merayo, Carol A. Raymond, Mark A. Wieczorek, Maria T. Zuber   +14 more
wiley   +1 more source