Results 91 to 100 of about 47,444 (303)

Phylogenetic systematics of Juncaceae

American Journal of Botany, EarlyView.
Abstract Premise Juncaceae has needed taxonomic revision for some time. Specifically, the genus Juncus s.l. is known to be paraphyletic because five small southern‐hemisphere genera have been shown repeatedly to be nested within it. In 2022, a new classification was proposed, based on phylogenies built from one nuclear and three plastid regions ...
Reed J. Kenny, Lenka Záveská Drábková, Daniel Potter   +2 more
wiley   +1 more source

The Star Formation Law in Nearby Galaxies on Sub-Kpc Scales

, 2008
(Abridged) We present a comprehensive analysis of the relationship between star formation rate surface density (SFR SD) and gas surface density (gas SD) at sub-kpc resolution in a sample of 18 nearby galaxies.
Bigiel, Frank, Brinks, Elias, de Blok, W. J. G., Leroy, Adam, Madore, Barry, Thornley, Michele D., Walter, Fabian   +6 more
core   +1 more source

Unveiling a New Link: Cholesterol Deficiency in Smith–Lemli–Opitz and Niemann–Pick C as a Driver of Ciliopathies

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT The ciliopathies are a group of genetic disorders caused by defective function of either the primary cilia (a large number) or the motile cilia (a much smaller number). These have been defined as diseases with mutations in genes encoding individual ciliary or cilia‐associated proteins.
Robert P. Erickson, Maria Teresa Fiorenza   +1 more
wiley   +1 more source

Evolution of Stellar Activity and Habitable Zone. I. Ultraviolet Emission of Dwarfs in Open Clusters and Field Stars

The Astrophysical Journal Supplement Series
Near-ultraviolet (NUV) radiation from dwarf stars plays a critical role in shaping the habitability of planetary systems, yet its long-term evolution across different spectral types remains poorly investigated.
Xue Li, Song Wang, Jun Ma, Henggeng Han, Yang Huang, Jifeng Liu   +5 more
doaj   +1 more source

A homogeneous analysis of disks around brown dwarfs

, 2015
We re-analyzed the Herschel/PACS data of a sample of 55 brown dwarfs (BDs) and very low mass stars with spectral types ranging from M5.5 to L0. We investigated the dependence of disk structure on the mass of the central object in the substellar regime ...
Bayo, A., Joergens, V., Liu, Y., Nielbock, M., Wang, H.   +4 more
core   +1 more source

Searching for GEMS: The Occurrence of Giant Planets Orbiting M Dwarfs within 100 pc

The Astronomical Journal
We present results from a systematic search for transiting short-period giant exoplanets around M dwarf stars (GEMS; P  
Rowen I. Glusman, Caleb I. Cañas, Shubham Kanodia, Te Han, Rachel B. Fernandes, Guđmundur Stefánsson, Eric B. Ford, Marissa Maney, Andrew Monson, Andrew Hotnisky, Suvrath Mahadevan, Michael Rodruck, Kristo Ment, Andrew McWilliam, William D. Cochran, Knicole D. Colón, Mark R. Giovinazzi, Jaime A. Alvarado-Montes, Chad F. Bender, Cullen H. Blake, Alexandra Boone, Scott A. Diddams, Arvind F. Gupta, Samuel Halverson, Daniel Krolikowski, Andrea S.J. Lin, Joe P. Ninan, Paul Robertson, Arpita Roy, Christian Schwab, Ryan Terrien, Johanna Teske, Jason T. Wright   +32 more
doaj   +1 more source

Masgomas-4: Physical characterization of a double-core obscured cluster with a massive and very young stellar population

, 2014
The discovery of new, obscured massive star clusters has changed our understanding of the Milky Way star-forming activity from a passive to a very active star-forming machine. The search for these obscured clusters is strongly supported by the use of all-
Alegría, S. Ramírez, Herrero, A., Marín-Franch, A.   +2 more
core   +1 more source

A close look at the Centaurus A group of galaxies III. Recent star formation histories of late-type dwarfs around M83 [PDF]

, 2011
We study the resolved stellar populations of dwarf galaxies in the nearby Centaurus A/M83 group of galaxies. Our goal is to characterize their evolutionary history and to investigate eventual similarities or differences with the dwarf population in other
A. A. Cole, Aloisi, Aparicio, Banks, Battinelli, Belokurov, Belokurov, Bouchard, Bouchard, Bradamante, Caldwell, Cardelli, Cash, Chabrier, Cignoni, Cole, Cole, Cole, Crnojević, Crnojević, Côté, Côté, Côté, D. Crnojević, Dohm-Palmer, Dohm-Palmer, Dohm-Palmer, Dolphin, Dotter, Dressler, Duquennoy, Durrell, Durrell, E. K. Grebel, Einasto, Elmegreen, Gallart, Georgiev, Gilmore, Girardi, Glatt, Glatt, Glatt, Grebel, Grebel, Grebel, Groenewegen, Grossi, Harris, Harris, Hirashita, Isserstedt, Jarosik, Jerjen, Jerjen, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Karachentsev, Karachentseva, Kniazev, Koch, Koch, Koch, Koleva, Kotulla, Lee, Lee, Lee, Lee, Levesque, Maeder, Makarova, Makarova, Makarova, Marconi, Marigo, Mateo, Mazeh, McQuinn, Noël, Orban, Read, Recchi, Rejkuba, Sabbi, Scalo, Schlegel, Schulte-Ladbeck, Seiden, Sharina, Sirianni, Skillman, Smecker-Hane, Tautvaišienė, Tolstoy, Tolstoy, Tosi, Tosi, Trentham, van der Marel, van Dyk, Venn, Venn, Weisz, Weisz, Williams, Zaritsky, Zucker, Zucker, Zucker, Úbeda   +114 more
core   +4 more sources

Euclid Quick Data Release (Q1)—Spectroscopic Search, Classification, and Analysis of Ultracool Dwarfs in the Deep Fields

The Astrophysical Journal
The Near-Infrared Spectrometer and Photometer on board the Euclid space mission has obtained near-infrared (NIR) slitless spectra of millions of objects, including hundreds of ultracool dwarfs (UCDs).
C. Dominguez-Tagle, M. Žerjal, N. Sedighi, P. Mas-Buitrago, E. L. Martin, J.-Y. Zhang, N. Vitas, V. J. S. Béjar, S. Tsilia, S. Muñoz Torres, N. Lodieu, D. Barrado, E. Solano, P. Cruz, R. Tata, N. Phan-Bao, A. Burgasser   +16 more
doaj   +1 more source

First detection of nonflare microwave emissions from the coronae of single late-type dwarf stars

The Astrophysical Journal, 1981
Results are presented of a search for nonflare microwave radiation from the coronae of nearby late-type dwarf stars comparable to the sun: single stars without evidence for either a large wind or circumstellar envelope. The observing program consisted of flux measurements of six stars over a 24-h period with the VLA in the C configuration at a ...
D. E. Gary, J. L. Linsky
openaire   +1 more source