Results 101 to 110 of about 7,844 (220)

The Physical Drivers and Observational Tracers of CO-to-H2 Conversion Factor Variations in Nearby Barred Galaxy Centers

The Astrophysical Journal, 2023
The CO-to-H _2 conversion factor ( α _CO ) is central to measuring the amount and properties of molecular gas. It is known to vary with environmental conditions, and previous studies have revealed lower α _CO in the centers of some barred galaxies on ...
Yu-Hsuan Teng, Karin M. Sandstrom, Jiayi Sun, Munan Gong, Alberto D. Bolatto, I-Da Chiang, Adam K. Leroy, Antonio Usero, Simon C. O. Glover, Ralf S. Klessen, Daizhong Liu, Miguel Querejeta, Eva Schinnerer, Frank Bigiel, Yixian Cao, Mélanie Chevance, Cosima Eibensteiner, Kathryn Grasha, Frank P. Israel, Eric J. Murphy, Lukas Neumann, Hsi-An Pan, Francesca Pinna, Mattia C. Sormani, J. D. Smith, Fabian Walter, Thomas G. Williams   +26 more
doaj   +1 more source

Photometric structure of the peculiar galaxy ESO 235-G58

, 2004
We present the near-infrared and optical properties of the peculiar galaxy ESO 235-G58, which resembles a late-type ringed barred spiral seen close to face-on.
Arnaboldi, Arnaboldi, Athanassoula, Bell, Bothun, Bothun, Bournaud, Bruzual, Buta, Buta, Buta, Cardelli, de Jong, de Jong, E. Iodice, Erwin, Iodice, Iodice, Iodice, Iodice, Iodice, Jungwiert, K. C. Freeman, Khosroshahi, Knapen, L. S. Sparke, M. Arnaboldi, M. Capaccioli, Makarova, McGaugh, McGregor, Michard, Michard, Möllenhoff, O'Neil, R. Buta, Reshetnikov, Rieke, Salpeter, Schlegel, Scorza, van Driel, van Driel, van Driel, van Gorkom, Walterbos, Whitmore, Wozniak   +47 more
core   +1 more source

Molecular Gas Kinematics in Barred Spiral Galaxies [PDF]

The Astrophysical Journal, 1999
To quantify the effect that bar driven mass inflow can have on the evolution of a galaxy requires an understanding of the dynamics of the inflowing gas. In this paper we study the kinematics of the dense molecular gas in a set of seven barred spiral galaxies to determine which dynamical effects dominate.
Kartik Sheth, Stuart N. Vogel, Michael W. Regan   +2 more
openaire   +4 more sources

On the Age Distribution of Classical Cepheids in the Galaxy

Astronomische Nachrichten, Volume 346, Issue 5, June 2025.
ABSTRACT We revisit the problem of the positive correlation between age and Galactocentric distance seen in Galactic Classical Cepheids, which at first sight may seem counter‐intuitive in the context of inside‐out galaxy formation. To explain it, we use the Besançon Galaxy Model and a simulation of star particles in the Galactic disc coupled with ...
Friedrich Anders, Chloé Padois, Marc Vilanova Sar, Marcin Semczuk, Marc del Alcázar‐Julià, Francesca Figueras   +5 more
wiley   +1 more source

Luminosities of Barred and Unbarred S0 Galaxies

, 2012
Lenticular galaxies with M_B < -21.5 are almost exclusively unbarred, whereas both barred and unbarred objects occur at fainter luminosity levels. This effect is observed both for objects classified in blue light, and for those that were classified in ...
Buta, de Vaucouleurs, de Vaucouleurs, Hubble, Sales, Sandage, Sandage, Sandage, Sidney van den Bergh, van den Bergh   +9 more
core   +1 more source

In Vitro Validation of Pulsed Electromagnetic Field (PEMF) as an Effective Countermeasure Against Inflammatory‐Mediated Intervertebral Disc Degeneration

JOR SPINE, Volume 8, Issue 2, June 2025.
ABSTRACT Background Intervertebral disc (IVD) degeneration (IDD) is the main contributor to chronic low back pain (LBP), the leading cause of disability worldwide, with a significant impact on the quality of life and health of common people. The etiology of IDD is still unclear, but it has been largely demonstrated the crucial role of inflammation and ...
Laura Guarnaccia, Laura Begani, Silvana Pileggi, Mauro Pluderi, Stefano Borsa, Claudia Fanizzi, Massimiliano Domenico Rizzaro, Giorgio Fiore, Laura Fontana, Rolando Campanella, Chiara Cordiglieri, Chiara Gaudino, Giovanni A. Alotta, Monica Miozzo, Emanuele Garzia, Emanuela Barilla, Lorenzo Fassina, Laura Riboni, Marco Locatelli, Giovanni Marfia, Stefania E. Navone   +20 more
wiley   +1 more source

Do Strong Bars Exhibit Strong Noncircular Motions?

The Astrophysical Journal
Galactic bars induce characteristic motions deviating from pure circular rotation, known as noncircular motions. As bars are nonaxisymmetric structures, stronger bars are expected to show stronger noncircular motions.
Taehyun Kim, Dimitri A. Gadotti, Yun Hee Lee, Carlos López-Cobá, Woong-Tae Kim, Minjin Kim, Myeong-gu Park   +6 more
doaj   +1 more source

Unique starch biosynthesis pathways in wild rice revealed by multi‐omics analyses

Plant Biotechnology Journal, Volume 23, Issue 6, Page 2429-2445, June 2025.
Summary Australian wild rice species (AWS) possess unique starch properties characterized by a slow digestibility rate. However, the genomic and transcriptomic variations of starch‐synthesis‐related genes (SSRGs) influencing starch physiochemical properties in AWS remain unclear.
Nurmansyah, Agnelo Furtado, Pauline Okemo, Robert J. Henry   +3 more
wiley   +1 more source

Applying the manifold theory to Milky Way models: First steps on morphology and kinematics

EPJ Web of Conferences, 2012
We present recent results obtained by applying invariant manifold techniques to analytical models of the Milky Way. It has been shown that invariant manifolds can reproduce successfully the spiral arms and rings in external barred galaxies. Here, for the
Antoja T., Figueras F., Athanassoula E., Romero-Gómez M.   +3 more
doaj   +1 more source

Chiral Engineered Biomaterials: New Frontiers in Cellular Fate Regulation for Regenerative Medicine

Advanced Functional Materials, Volume 35, Issue 20, May 16, 2025.
Chiral engineered biomaterials can selectively influence cell behaviors in regenerative medicine. This review covers chiral engineered biomaterials in terms of their fabrication methods, cellular response mechanisms, and applications in directing stem cell differentiation and tissue function.
Yuwen Wang, Xin Zhang, Denghui Xie, Chunying Chen, Zhifeng Huang, Zhong Alan Li   +5 more
wiley   +1 more source