Results 91 to 100 of about 43,402 (211)

Different Influence of Gas Accretion on the Evolution of Star-forming and Non-star-forming Galaxies

The Astrophysical Journal
Using integral field spectroscopic data from the Mapping Nearby Galaxies at Apache Point Observatory survey, we investigate the spatially resolved properties and empirical relations of a star-forming galaxy and a non-star-forming galaxy hosting ...
Min Bao, Wenlong Zhao, Qirong Yuan
doaj   +1 more source

The Mechanism and Timescale of Nodal Precession: Two Nuclear Stellar Disks in the Galactic Center

Open Astronomy, 2015
A dynamical model of interacting nuclear stellar rings in the central parsec of our Galaxy is constructed. We discuss the physical sources of nodal precession and of the associated time scales.
Kondratyev B. P.
doaj   +1 more source

Imported Retail Beef and Chicken Meat Products Serve as Reservoirs for Emerging Antibiotic‐Resistant Pathotypes of Escherichia coli in Pristine Areas Free From Agricultural Activity

MicrobiologyOpen, Volume 15, Issue 2, April 2026.
Retail meat–derived E. coli frequently harbored multidrug‑resistance phenotypes, diverse virulence determinants, and plasmid‑encoded resistance genes with high conjugative potential. Results indicate meat and poultry as underrecognized reservoirs facilitating dissemination of antimicrobial resistance and pathogenic lineages, with imported products ...
Saehah Yi, Kathleen A. Alexander, Auja Bywater, Galaletsang Dintwe, Ashton N. Sies, Thomas H. Haidl, Andrew D. S. Cameron, Monica A. Ponder   +7 more
wiley   +1 more source

COSMOS-Web: The Role of Galaxy Interactions and Disk Instabilities in Producing Starbursts at z < 4

The Astrophysical Journal
We study of the role of galaxy–galaxy interactions and disk instabilities in producing starburst activity in galaxies out to z = 4. For this, we use a sample of 387 galaxies with robust total star formation rate measurements from Herschel, gas masses ...
Andreas L. Faisst, Lilan Yang, M. Brinch, C. M. Casey, N. Chartab, M. Dessauges-Zavadsky, N. E. Drakos, S. Gillman, G. Gozaliasl, C. C. Hayward, O. Ilbert, P. Jablonka, A. Kaminsky, J. S. Kartaltepe, A. M. Koekemoer, V. Kokorev, E. Lambrides, D. Liu, C. Maraston, C. L. Martin, A. Renzini, B. E. Robertson, D. B. Sanders, Z. Sattari, N. Scoville, C. M. Urry, A. P. Vijayan, J. R. Weaver, H. B. Akins, N. Allen, R. C. Arango-Toro, O. R. Cooper, M. Franco, F. Gentile, S. Harish, M. Hirschmann, A. A. Khostovan, C. Laigle, R. L. Larson, M. Lee, Z. Liu, A. S. Long, G. Magdis, R. Massey, H. J. McCracken, J. McKinney, L. Paquereau, J. Rhodes, R. M. Rich, M. Shuntov, J. D. Silverman, M. Talia, S. Toft, J. A. Zavala   +53 more
doaj   +1 more source

UGC 7388: a galaxy with two tidal loops

, 2009
We present the results of spectroscopic and morphological studies of the galaxy UGC7388 with the 8.1-m Gemini North telescope. Judging by its observed characteristics, UGC7388 is a giant late-type spiral galaxy seen almost edge-on.
B. C. Whitmore, Ch. Brocca, F. Schweizer, G. Monnet, I. F. Fernandes, J. Dubinski, J. K. Adelman-McCarthy, K. O’Neil, L. Bottinelli, M. de Oliveira-Abans, M. Faúndez-Abans, M. R. Blanton, O. K. Silchenko, R. A. Ibata, R. B. Tully, R. B. Tully, R. Ibata, V. P. Reshetnikov, V. P. Reshetnikov, V. P. Reshetnikov, V. Reshetnikov, V. Reshetnikov, V. Reshetnikov, Zh. Shang   +23 more
core   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

Fortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

Collision-induced galaxy formation: semi-analytical model and multi-wavelength predictions

, 2003
A semi-analytic model is proposed that couples the Press-Schechter formalism for the number of galaxies with a prescription for galaxy-galaxy interactions that enables to follow the evolution of galaxy morphologies along the Hubble sequence.
Balland, Christophe, Devriendt, Julien E. G., Silk, Joe   +2 more
core   +3 more sources

Deciphering the “Missing Xenon Paradox” in Celestial Bodies: A Multifaceted Perspective Toward Demystifying This Enigma

Journal of Geophysical Research: Planets, Volume 131, Issue 4, April 2026.
Abstract Xenon (Xe) is a heavy noble gas with intriguing chemical properties, such as having several stable isotopes and the ability to form compounds under extreme conditions. Despite the predictions based on cosmochemical models that suggest xenon should be relatively abundant in planetary reservoirs, empirical data indicate a significant depletion ...
Avinash Kumar Both, Avradip Ghosh, Chin Li Cheung   +2 more
wiley   +1 more source

Red Thick Disks of Nearby Galaxies [PDF]

The Astronomical Journal, 2005
Edge on systems reveal the properties of disk galaxies as a function of height, z, above the plane. Four local edge-on galaxies, that are close enough to have been resolved into stars by the Hubble Space Telescope, show thick disks, composed of a red stellar population, which is old and relatively metal rich.
openaire   +3 more sources

The Stellar Structures Around Disk Galaxies [PDF]

, 2008
To appear in the proceedings for the IAUS 241 'Stellar Populations as Building Blocks of Galaxies' held in La Palma, Spain, December 10-16 ...
Igor Drozdovsky, N. Tikhonov, A. Aparicio, C. Gallart, M. Monelli, S. Hidalgo, E. J. Bernard, O. Galazutdinova, G. Bono, N. Sanna   +9 more
openaire   +2 more sources