Results 111 to 120 of about 1,376 (227)

A Breakdown of the Black Hole–Bulge Mass Relation in Local Active Galaxies

The Astrophysical Journal
We investigate the relation between black hole (BH) mass and bulge stellar mass for a sample of 117 local ( z ∼ 0) galaxies hosting low-luminosity, broad-line active galactic nuclei (AGNs).
Megan R. Sturm, Amy E. Reines
doaj   +1 more source

The Heavy Metal Survey: Star Formation Constraints and Dynamical Masses of 21 Massive Quiescent Galaxies at z = 1.3–2.3

The Astrophysical Journal
In this paper, we present the Heavy Metal Survey, which obtained ultradeep medium-resolution spectra of 21 massive quiescent galaxies at 1.3 < z < 2.3 with Keck/LRIS and MOSFIRE.
Mariska Kriek, Aliza G. Beverage, Sedona H. Price, Katherine A. Suess, Guillermo Barro, Rachel S. Bezanson, Charlie Conroy, Sam E. Cutler, Marijn Franx, Jamie Lin, Brian Lorenz, Yilun Ma, Ivelina G. Momcheva, Lamiya A. Mowla, Imad Pasha, Pieter van Dokkum, Katherine E. Whitaker   +16 more
doaj   +1 more source

Kaempferol Attenuates Spaceflight‐Associated Knee Cartilage Degradation by Targeting NOX4‐Mediated Mitochondrial Dysfunction

Advanced Science, Volume 13, Issue 48, 28 August 2026.
We have shown that both simulated and actual spaceflight contribute to cartilage degradation in the knees of mice. Using RNA sequencing and bioenergetic profiling, we identified NADPH oxidase 4 (NOX4) as a key factor driving these changes. Additionally, we found that kaempferol, a naturally occurring flavonoid that binds directly to NOX4, reduces ...
Yuesong Yin, Ruiling Xu, Meagan J. Makarczyk, Jia‐Jun Liu, Silvia Liu, Matthew Z. Shi, Roberta Di Carlo, Michael F. Almeida, Alex Garris, Sarah Day, Rebekah Sanchez‐Hodge, Jonathan C. Schisler, Aleeza H. Zilberman, Noah G. Allen, Angela J. Kubik, Elizabeth A. Blaber, Arnold Z. Olali, Wanqing Xie, Douglas C. Wallace, Christopher E. Mason, Peter G. Alexander, Giuseppe Intini, Afshin Beheshti, Hang Lin   +23 more
wiley   +1 more source

MAGAZ3NE: Massive, Extremely Dusty Galaxies at z ∼ 2 Lead to Photometric Overestimation of Number Densities of the Most Massive Galaxies at 3 < z < 4

The Astrophysical Journal
We present rest-frame optical spectra from Keck/MOSFIRE and Keck/NIRES of 16 candidate ultramassive galaxies targeted as part of the Massive Ancient Galaxies at z > 3 Near-Infrared Survey (MAGAZ3NE).
Ben Forrest, M. C. Cooper, Adam Muzzin, Gillian Wilson, Danilo Marchesini, Ian McConachie, Percy Gomez, Marianna Annunziatella, Z. Cemile Marsan, Joey Braspenning, Wenjun Chang, Gabriella de Lucia, Fabio Fontanot, Michaela Hirschmann, Dylan Nelson, Annalisa Pillepich, Joop Schaye, Stephanie M. Urbano Stawinski, Mauro Stefanon, Lizhi Xie   +19 more
doaj   +1 more source

The ORCA‐TWIN qCMOS Experiment I. Science Case and Commissioning at Calar Alto Observatory

Astronomische Nachrichten, Volume 347, Issue 7, August 2026.
ABSTRACT We describe a pilot study to explore a new generation of fast and low noise CMOS image sensors for time domain astronomy, using two remote telescopes with a baseline of 1635 km. The experiment involves direct imaging with novel qCMOS image sensor technology that combines fast readout with sub‐electron readout noise.
Martin M. Roth, Paško Roje, Stella Vješnica, Stefan Cikota, Alex J. Brown, Mike Kretlow, Marco Azzaro, Santiago Reinhart, Jesús Aceituno, Harry Dawson, Carsten Denker, Torsten Enßlin, Stephan Geier, Thomas Granzer, Thomas Kupfer, Gianluca Li Causi, Samaya Nissanke, José Luis Ortiz, Fernando Pedichini, Katja Poppenhäger, Axel Schwope   +20 more
wiley   +1 more source

A Morphological Study of AGN-host Dwarf Galaxies

The Astrophysical Journal
The study of morphology in galaxies offers a convenient and quantitative method to measure the shapes and characteristics of galaxy light distribution that reflect the evolutionary history.
Jie Tian, Yinghe Zhao, Xiejin Li, Jinming Bai   +3 more
doaj   +1 more source

Luminosity Evolution of the Hot Gas in Normal Galaxies from the Near Universe to z = 0.5

The Astrophysical Journal
We explore the evolution of the ∼10 ^7 K hot gas in normal galaxies out to redshift = 0.5 (lookback time = 5 Gyr), using X-ray luminosity functions (XLFs) built from a sample of 575 normal galaxies with z < 0.6 detected in five high-galactic-latitude ...
Dong-Woo Kim, Giuseppina Fabbiano
doaj   +1 more source

The evolution of early-type galaxies

, 2018
Early-type galaxies (ETGs) are typically thought of as `red and dead' with little to no star formation and old stellar populations. Their detailed kinematics measured locally suggest an interesting array of formation mechanisms and high-redshift observations are starting to reveal a two-phase evolutionary path for the most massive galaxies.
openaire   +1 more source

Environmental Drivers of Ganoderma resinaceum and Ganoderma enigmaticum Mycelial Growth on Malted Sorghum and Associated Changes in Antioxidant Activity and Mineral Composition: Implications for Pito Bio‐Enrichment

Food Science &Nutrition, Volume 14, Issue 8, August 2026.
Cultivation of Ganoderma resinaceum and Ganoderma enigmaticum on malted sorghum at 30°C in the dark with a 6% to 8% inoculum led to accelerated mycelial colonization, increased biomass yield, greater antioxidant activity, and improved mineral enrichment, indicating potential for pito bio‐enrichment.
Florence Adwoa Ayirezang, William Otoo Ellis, Ibok Nsa Oduro, Matilda Dzomeku, Gideon Adotey   +4 more
wiley   +1 more source

Minor-merger-induced Star Formation Rejuvenation in an Elliptical Radio-loud Quasar Host, 3C 59

The Astrophysical Journal
We report a rare case where an elliptical radio-loud quasar host, 3C 59, rejuvenates star formation activity through minor mergers with its nearby satellite galaxies.
Yijun Wang, Tao Wang, Ke Xu, Junjie Mao, Yerong Xu, Zheng Zhou   +5 more
doaj   +1 more source