Results 111 to 120 of about 599,828 (297)

Hidden in Plain Sight: Integrative Taxonomy Discovers Two New Species of Digitate Soft Corals in the Urban Waters of China's Greater Bay Area

Ecology and Evolution, Volume 15, Issue 10, October 2025.
This article identified two novel soft coral species (Parasphaerasclera dimorpha sp. nov. and Paraminabea inflata sp. nov.) from urbanized South China Sea waters, distinct in morphology and genetics. Our study highlighted undocumented coral diversity in the hyper‐urbanized Greater Bay Area, emphasizing the need for cryptic species documentation in ...
Yi‐Xuan Li, Janice Wingyan Ng, Haixin Loke, Lan Liu, Jian‐Wen Qiu   +4 more
wiley   +1 more source

UVIT Study of the Magellanic Clouds (U-SMAC). III. Hierarchical Star Formation in the Small Magellanic Cloud Regulated by Turbulence

The Astrophysical Journal
The Small Magellanic Cloud (SMC), a satellite galaxy of the Milky Way, is an irregular dwarf galaxy exhibiting evidence of recent and ongoing star formation.
Sipra Hota, Richard de Grijs, Annapurni Subramaniam   +2 more
doaj   +1 more source

Steps toward Unraveling the Structure and Formation of Five Polar Ring Galaxies

Galaxies
Polar ring galaxies (PRGs) are unusual relative to common galaxies in that they consist of a central host galaxy—usually a gas-poor, early-type S0 or elliptical galaxy—surrounded by a ring of gas, dust and stars that orbit perpendicular to the major axis
Kyle E. Lackey, Varsha P. Kulkarni, Monique C. Aller   +2 more
doaj   +1 more source

On the impact of magnetic-field models in galaxy clusters on constraints on axion-like particles from the lack of irregularities in high-energy spectra of astrophysical sources

Physics Letters B, 2020
Photons may convert to axion-like particles (ALPs) in external magnetic fields. Under certain conditions, this effect should result in irregular features in observed spectra of astrophysical sources.
Maxim Libanov, Sergey Troitsky
doaj   +1 more source

The Local Group Census: planetary nebulae in IC 10, Leo A and Sextans A

, 2003
In the framework of our narrow-band survey of the Local Group galaxies, we present the results of the search for planetary nebulae (PNe) in the dwarf irregular galaxies IC10, LeoA and SextansA.
A. A. Zijlstra, A. Mampaso, Arnaboldi, Ciardullo, Ciardullo, Cook, D. J. Lennon, D. L. Pollacco, Danziger, de Vaucouleurs, Dohm-Palmer, Dolphin, Dopita, Durrell, Hodge, Hodge, Huchtmeier, Hunter, J. R. Walsh, Jacoby, Jacoby, Killen, L. Magrini, Leisy, M. Perinotto, Magrini, Massey, Massey, Mathis, Minniti, Morgan, Méndez, N. A. Walton, Oke, P. Leisy, R. Greimel, R. L. M. Corradi, Roberts, Sakai, Sakai, Sandage, Shostak, Skillman, Strobel, Tolstoy, Wilson, Young, Zijlstra   +47 more
core   +1 more source

Phenotypic and Genetic Characterization and Production Abilities of Lacticaseibacillus rhamnosus Strain 484—A New Probiotic Strain Isolated From Human Breast Milk

Food Science &Nutrition, Volume 13, Issue 10, October 2025.
Human breast milk (HBM) is a recognized source of probiotic bacteria, with species such as Lacticaseibacillus rhamnosus demonstrating considerable potential for applications in both the medical and food industries. In this study, the probiotic potential of strain 484, isolated from HBM, was evaluated through comprehensive phenotypic and genetic ...
Natalia Czarnecka, Magdalena Jankowska, Sylwia Nawrot, Katarzyna Nogal‐Nowak, Sławomir Wąsik, Grzegorz Czerwonka   +5 more
wiley   +1 more source

The JWST Hubble Sequence: The Rest-frame Optical Evolution of Galaxy Structure at 1.5 < z < 6.5

The Astrophysical Journal, 2023
We present results on the morphological and structural evolution of a total of 3956 galaxies observed with JWST at 1.5 < z < 6.5 in the JWST CEERS observations that overlap with the CANDELS EGS field.
Leonardo Ferreira, Christopher J. Conselice, Elizaveta Sazonova, Fabricio Ferrari, Joseph Caruana, Clár-Bríd Tohill, Geferson Lucatelli, Nathan Adams, Dimitrios Irodotou, Madeline A. Marshall, Will J. Roper, Christopher C. Lovell, Aprajita Verma, Duncan Austin, James Trussler, Stephen M. Wilkins   +15 more
doaj   +1 more source

First Stellar Abundances in the Dwarf Irregular Galaxy Sextans A [PDF]

, 2004
We present the abundance analyses of three isolated A-type supergiant stars in the dwarf irregular galaxy Sextans A (=DDO 75) from high-resolution spectra obtained with the Ultraviolet-Visual Echelle Spectrograph (UVES) on the Kueyen telescope (UT2) of ...
A. Kaufer, K. Venn, E. Tolstoy, C. Pinte, R. Kudritzki   +4 more
semanticscholar   +1 more source

The Local Group Census: planetary nebulae in Sextans B

, 2002
Five planetary nebulae (PNe) have been discovered in the nearby dwarf irregular galaxy. Emission line images were obtained using the Wide Field Camera of the 2.5m Isaac Newton Telescope (INT) at La Palma (Spain).
A. A. Zijlstra, Ciardullo, Courteau, D. J. Lennon, D. L. Pollacco, Danziger, Dudziak, Hunter, Hunter, J. R. Walsh, Jacoby, Jacoby, Jacoby, L. Magrini, Lilly, M. Perinotto, Madau, Magrini, Magrini, Mendez, Minniti, Moles, N. A. Walton, Oke, R. Greimel, R. L. M. Corradi, Roye, Sakai, Seaton, Strobel, Tosi, Walsh, Zijlstra, Zijlstra   +33 more
core   +1 more source

Chemical evolution of irregular and blue compact galaxies [PDF]

The Astrophysical Journal, 1995
We discuss the chemical evolution of metal poor galaxies and conclude that their oxygen deficiency is not due to: the production of black holes by massive stars or a varying slope of the Initial Mass Function, IMF, at the high-mass end. A varying IMF at the low-mass end alone or in combination with: (a) an outflow of oxygen-rich material, (b) an ...
Leticia Carigi, Manuel Peimbert, Pedro Colín, A. Sarmiento   +3 more
openaire   +3 more sources