Results 91 to 100 of about 72,059 (265)

Disk Galaxy Models Driven by Stochastic Self-Propagating Star Formation

Open Astronomy, 2010
We present a model of chemical and spectrophotometric evolution of disk galaxies based on a stochastic self-propagating star formation scenario. The model incorporates galaxy formation through the process of accretion, chemical and photometric evolution ...
Mineikis T., Vansevičius V.
doaj   +1 more source

On the Spiral Structure of the Milky Way Galaxy

, 2010
We consider the possible pattern of the overall spiral structure of the Galaxy, using data on the distribution of neutral (atomic), molecular, and ionized hydrogen, on the base of the hypothesis of the spiral structure being symmetric, i.e.
A. Cabrera-Lavers, A. D. Chernin, A. E. Piskunov, A. K. Dambis, A. Luna, A. M. Mel’nik, A. M. Mel’nik, B. Elmegreen, B. G. Elmegreen, B. G. Elmegreen, B. G. Elmegreen, C. Clarke, C. Clarke, C. L. Dobbs, D. A. Grabelsky, D. A. Grabelsky, D. M. Gittins, E. Churchwell, E. S. Levine, H. Nakanishi, H. Nakanishi, H. Weaver, J. A. Selwood, J. P. Vallée, J. Vaucouleurs de, L. G. Hou, L. N. Berdnikov, M. J. Reid, M. Messineo, M. S. Seigar, M.S. Seigar, N. M. McClure-Griffiths, P. A. James, R. A. Benjamin, R. Beck, R. C. Kennicutt Jr., R. Shetty, R. X. McGee, S. T. Strasser, T. M. Dame, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov, Yu. N. Efremov   +48 more
core   +1 more source

The simulation of molecular clouds formation in the Milky Way [PDF]

, 2012
Using 3D hydrodynamic calculations we simulate formation of molecular clouds in the Galaxy. The simulations take into account molecular hydrogen chemical kinetics, cooling and heating processes.
A. M. Sobolev, A. V. Khoperskov, Amores, Asplund, Baba, Bakes, Balbus, Ballesteros-Paredes, Barnes, Beaumont, Begeman, Bergin, Binney, Blitz, Bobylev, Cazaux, Cen, Chou, Cohen, Cox, Dame, Dame, Dobbs, Dobbs, Dobbs, Dobbs, Dobbs, Dobbs, Draine, E. O. Vasiliev, Elmegreen, Elmegreen, Elmegreen, Englmaier, Falgarone, Feldmann, Field, Fridman, Galli, Glover, Goldsmith, Habing, Heyer, Hollenbach, Hollenbach, Kalberla, Kauffmann, Khoperskov, Khoperskov, Kim, Kirsanova, Kwan, Lada, Lada, Larson, Lepine, Levine, Levinson, Mac Low, Maloney, McClure-Griffiths, McKee, Mishurov, Nelson, Rathborne, Roberts, Roberts, Rodriguez-Fernandez, Román-Duval, Román-Zúñiga, S. A. Khoperskov, Shetty, Shetty, Shu, Sofue, Solomon, Stecker, Sutherland, Tasker, Tielens, Tomisaka, Vallee, van Leer, Wada, Wada, Wada, Wada, Wolfire, Zhang   +88 more
core   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

The stellar populations of spiral galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2000
25 pages; 17 figures; re-submitted to MNRAS after replying to referee's ...
Roelof S. de Jong, Roelof S. de Jong, Eric F. Bell   +2 more
openaire   +4 more sources

Quantifying the Unwinding Due to Ram Pressure Stripping in Simulated Galaxies

Galaxies
Galaxies moving through the gas of the intracluster medium (ICM) experience ram pressure stripping, which can leave behind a gas tail. When a disk galaxy receives the wind edge-on, however, the characteristic signature is not a typical jellyfish tail ...
Rubens E. G. Machado, Caroline F. O. Grinberg, Elvis A. Mello-Terencio   +2 more
doaj   +1 more source

The Effect of Corotation on the Radial Gradient of Metallicity of Spiral Galaxies

, 2010
The corotation radius in a spiral galaxy is the radius where the spiral pattern speed has the same velocity of the rotation curve. By compiling results from the literature for 20 spiral galaxies we verified a strong correlation between the radius of the ...
Lepine, J. R. D., Scarano Jr., S.
core   +1 more source

Thermotolerant class A acid phosphatase active across broad pH range and diverse substrates

Protein Science, Volume 34, Issue 9, September 2025.
Abstract M2‐32 is a non‐specific acid phosphatase with a rare ability to function across a broad pH range (3.5–8.5). Analysis using SWISS‐PROT Prf Profiles classifies it as a class A acid phosphatase (Z‐score: 78.97), sharing 50%–60% sequence similarity with enzymes such as PhoC and PhoN.
Maria‐Isabel Recio, José A. Gavira, Jesús de La Torre, Mario Cano‐Muñoz, Sergio Martínez‐Rodriguez, Abdelali Daddaoua, Estrella Duque, Juan L. Ramos   +7 more
wiley   +1 more source

Stellar Populations in Spiral Galaxies [PDF]

Proceedings of the International Astronomical Union, 2006
Abstract We report preliminary results of the characterization of bulge and inner disk stellar populations for 8 nearby spiral galaxies using Gemini/GMOS. The long-slit spectra extend out to 1–2 disk scale lengths with S/N/Å>50. Two different model fitting techniques, absorption-line indices and full spectral synthesis, are found to weigh age ...
J. Jesús González, Stéphane Courteau, Lauren A. MacArthur   +2 more
openaire   +3 more sources

A Role for the Plastidial GPT2 Translocator in the Modulation of Lignin Biosynthesis

Plant, Cell &Environment, Volume 48, Issue 9, Page 6458-6472, September 2025.
ABSTRACT Engineering plants with reduced lignin content can result in pleiotropic growth defects. In stems of Arabidopsis plants with reduced expression of hydroxycinnamoyl CoA: shikimate hydroxycinnamoyl transferase (HCT), the plastidial glucose 6‐phosphate: phosphate co‐transporter GPT2 is highly overexpressed, and this coincides with reduced lignin ...
Aditi Subramani Raju, Abira Sahu, Chunliu Zhuo, Wayne K. Versaw, Richard A. Dixon   +4 more
wiley   +1 more source