Results 91 to 100 of about 7,844 (220)

Luminous Infrared Galaxies in the Local Universe

, 2006
We study the morphology and star formation properties of 159 local luminous infrared galaxy (LIRG) using multi-color images from Data Release 2 (DR2) of the Sloan Digital Sky Survey (SDSS). The LIRGs are selected from a cross-correlation analysis between
Cao, C., Deng, Z. G., Mao, S., Wang, J. L., Wu, Hong, Xia, X. Y.   +5 more
core   +1 more source

The impact of bars on the mid-infrared dust emission of spiral galaxies: global and circumnuclear properties [PDF]

, 2001
We study the mid-infrared properties of a sample of 69 nearby spiral galaxies, selected to avoid Seyfert activity contributing a significant fraction of the central energetics, or strong tidal interaction, and to have normal infrared luminosities.
A. Bosma, Aalto, Aaronson, Aguerri, Allamandola, Andreani, Appleton, Arsenault, Ashby, Athanassoula, Athanassoula, Bajaja, Bonatto, Borghesi, Boselli, Boselli, Boulanger, Boulanger, Braine, Brooks, Buta, C. Bonoli, Cayatte, Cayatte, Cesarsky, Cesarsky, Cesarsky, Chamaraux, Chamaraux, Claussen, Cohen, Combes, Combes, Condon, Contursi, Dale, Dale, de Grijp, Devereux, Diaz, Duley, Désert, Elfhag, Eskridge, Friedli, Garcia, García-Barreto, García-Barreto, Genzel, Giard, Giovanardi, Guiderdoni, Gérin, H. Roussel, Handa, Haynes, Haynes, Heckman, Helfer, Helou, Helou, Ho, Horellou, Huang, Huchtmeier, Huchtmeier, Huntley, Isobe, Jörsäter, Kamphuis, Keel, Keel, Kenney, Kennicutt, Koopmann, Kotilainen, Krumm, Krügel, Kutner, L. Vigroux, Laurent, Lindblad, Léger, M. Sauvage, Maia, Maia, Maiolino, Maoz, Martin, Martin, Martinet, Mathewson, Mauersberger, McLeod, Mirabel, Mundell, P. Gallais, P. Mazzei, Papoular, Pence, Phillips, Regan, Regan, Reynaud, Rice, Richter, Roche, Rogstad, Roth, Roussel, Ryder, S. Madden, Sage, Sakamoto, Sakata, Sancisi, Sanders, Sanders, Sandqvist, Seigar, Sellgren, Sheth, Shioya, Soifer, Spoon, Strong, Sturm, T. Hawarden, Taniguchi, Telesco, Theureau, Thuan, Tubbs, Uchida, van den Bergh, Veilleux, Veilleux, Vila-Vilaró, Véron-Cetty, Whitworth, Wiklind, Wiklind, Young   +142 more
core   +2 more sources

Age‐Associated Decline in Autophagy Pathways in the Retinal Pigment Epithelium and Protective Effects of Topical Trehalose in Light‐Induced Outer Retinal Degeneration in Mice

Aging Cell, Volume 24, Issue 7, July 2025.
Transcriptomic analyses reveal an age‐related decline in autophagy pathways in RPE/choroid. These pathways remain unchanged in early AMD but become bidirectionally dysregulated in later stages, along with increased RPE loss. Pre‐treatment with trehalose eyedrops enhances RPE autophagy flux and prevents light‐induced outer retinal degeneration in mice ...
Katherine Cox, Gongyu Shi, Neve Read, Mohamed T. Patel, Kepeng Ou, Zijia Liu, Jiahui Wu, Suci Cendanawati, Jenna Le Brun Powell, Pola Goldberg Oppenheimer, Lisa J. Hill, Lindsay B. Nicholson, Andrew D. Dick, Jian Liu   +13 more
wiley   +1 more source

Chemical enrichment in isolated barred spiral galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2018
16 pages, 11 figures, accepted for publication in ...
Hugo Martel, Christian Carles, Fidèle Robichaud, Sara L Ellison, David J Williamson   +4 more
openaire   +2 more sources

Identification and Analysis of Galactic Bars in DESI Legacy Imaging Surveys

The Astrophysical Journal
We present a comprehensive study of bar structures in the local universe using data from the DESI Legacy Imaging Surveys. Through isophotal analysis of 232,142 galaxies, we identify bars and classify them into strong and weak categories based on ...
Wenwen Wang, Zhimin Zhou
doaj   +1 more source

Effects of Magnetic Fields on Gas Dynamics and Star Formation in Nuclear Rings

The Astrophysical Journal, 2023
Nuclear rings at the centers of barred galaxies are known to be strongly magnetized. To explore the effects of magnetic fields on star formation in these rings and nuclear gas flows, we run magnetohydrodynamic simulations in which there is a temporally ...
Sanghyuk Moon, Woong-Tae Kim, Chang-Goo Kim, Eve C. Ostriker   +3 more
doaj   +1 more source

H-alpha kinematics of S4G spiral galaxies-II. Data description and non-circular motions [PDF]

, 2015
We present a kinematical study of 29 spiral galaxies included in the Spitzer Survey of Stellar Structure in Galaxies, using Halpha Fabry-Perot data obtained with the Galaxy Halpha Fabry-Perot System instrument at the William Herschel Telescope in La ...
Athanassoula, E., Beckman, John E., Bosma, Albert, Cisternas, Mauricio, Díaz-García, Simón, Elmegreen, Bruce G., Erroz-Ferrer, Santiago, Font, Joan, Ho, Luis C., Kim, Taehyun, Knapen, Johan H., Laurikainen, Eija, Leaman, Ryan, Martinez-Valpuesta, Inma, Meidt, Sharon E., Muñoz-Mateos, Juan Carlos, Salo, Heikki, Sheth, Kartik   +17 more
core   +4 more sources

Plasticity of the heart in response to changes in physical activity

The Journal of Physiology, Volume 603, Issue 13, Page 3665-3677, 1 July 2025.
Abstract figure legend The heart adapts to changes in physical activity, with inactivity (e.g. bed rest or spaceflight) causing cardiac atrophy and ventricular stiffening, and endurance exercise training leading to eccentric hypertrophy and improved ventricular compliance.
Eric T. Hedge, Tiffany L. Brazile, Richard L. Hughson, Benjamin D. Levine   +3 more
wiley   +1 more source

Is NGC 4631 a barred spiral galaxy?

The Astronomical Journal, 1991
High- and low-dispersion optical spectra of the giant H II region CM 67 near the center of the edge-on galaxy NGC 4631 have been obtained. Comparisons are made with radio observations to suggest the existence of a large bar in NGC 4631. Region CM 67 is shown to coincide in position with the easternmost peak of a triple radio-continuum source.
Jianguo Wang, Jean-Rene Roy, Robin Arsenault   +2 more
openaire   +2 more sources

Impacts of Bar-driven Shear and Shocks on Star Formation

The Astrophysical Journal
Bars drive gas inflow. As the gas flows inward, shocks and shear occur along the bar dust lanes. Such shocks and shear can affect the star formation (SF) and change the gas properties.
Taehyun Kim, Dimitri A. Gadotti, Miguel Querejeta, Isabel Pérez, Almudena Zurita, Justus Neumann, Glenn van de Ven, Jairo Méndez-Abreu, Adriana de Lorenzo-Cáceres, Patricia Sánchez-Blázquez, Francesca Fragkoudi, Lucimara P. Martins, Luiz A. Silva-Lima, Woong-Tae Kim, Myeong-Gu Park   +14 more
doaj   +1 more source