Results 101 to 110 of about 67,629 (216)

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

Estimation of Global Increase of Radiation Dose Rates During the Ground Level Enhancement on 11–12 November 2025 Using WASAVIES

Space Weather, Volume 24, Issue 4, April 2026.
Abstract WArning System for AVIation Exposure to Solar energetic particles (WASAVIES) is a physics‐based nowcasting system designed to support warning operations for aviation exposure to solar energetic particles (SEPs) by providing near‐real‐time global SEP dose‐rate estimates.
Tatsuhiko Sato, Daikou Shiota, Yûki Kubo, Ryuho Kataoka, Hiroshi Yasuda, Shoko Miyake, Mamoru Ishii, Yoshizumi Miyoshi   +7 more
wiley   +1 more source

SECULAR EVOLUTION OF SPIRAL GALAXIES [PDF]

Journal of The Korean Astronomical Society, 2003
15 pages, 8 figures, Invited talk presented at the 2nd APCTP workshop on Astrophysics, Pohang, Korea (June 2002)
openaire   +2 more sources

Winter‐active spiders (Clubiona) have a hyperactive antifreeze protein with a unique beta‐solenoid fold

The FEBS Journal, Volume 293, Issue 8, Page 2270-2290, April 2026.
Antifreeze proteins from winter‐active spiders were purified using their affinity for ice. After LC–MSMS characterization, corresponding transcripts were identified. The antifreeze protein folds as a β‐solenoid with a large flat ice‐binding site on one surface and can bind to ice crystals and prevent their growth at −4 °C.
Laurie A. Graham, Stano Pekár, Ina M. Hainer, Peter L. Davies   +3 more
wiley   +1 more source

Simulations of normal spiral galaxies [PDF]

Monthly Notices of the Royal Astronomical Society, 2003
Accepted for publication in: Monthly Notices of the Royal Astron. Soc. The astro-ph copy has a few figures with degraded resolution. A copy with high quality graphics (4281 kb) can be downloaded from the kapteyn institute weg page at http://www.astro.rug.nl (Goto preprints and preprints 2003)
openaire   +2 more sources

Spiral structure in external galaxies [PDF]

Symposium - International Astronomical Union, 1970
The need for observing at least four different categories of optical objects for a satisfactory definition of optical spiral structure is emphasized. A sequence of optical form-types for the description of spiral structure is outlined. A pronounced difference in the nature of the spiral structure of the outer and inner parts of Messier 33 is ...
openaire   +1 more source

Revealing the Bifurcations of the Milky Way Spiral Arms Based on Hi-GAL and ATLASGAL Clumps

The Astronomical Journal
The spiral structure of the Milky Way remains under debate. Y. Xu et al. proposed, for the first time, a multiple-arm morphology for our Galaxy, with two spiral arms in the inner disk bifurcating outward alongside additional independent arms in the outer
Deyun Kong, Ye Xu, Dejian Liu, Yiwei Dong, Zehao Lin, Yingjie Li, Chaojie Hao   +6 more
doaj   +1 more source

A Milky Way-like barred spiral galaxy at a redshift of 3. [PDF]

Nature, 2023
Costantin L, Pérez-González PG, Guo Y, Buttitta C, Jogee S, Bagley MB, Barro G, Kartaltepe JS, Koekemoer AM, Cabello C, Corsini EM, Méndez-Abreu J, de la Vega A, Iyer KG, Bisigello L, Cheng Y, Morelli L, Arrabal Haro P, Buitrago F, Cooper MC, Dekel A, Dickinson M, Finkelstein SL, Giavalisco M, Holwerda BW, Huertas-Company M, Lucas RA, Papovich C, Pirzkal N, Seillé LM, Vega-Ferrero J, Wuyts S, Yung LYA.   +32 more
europepmc   +1 more source

Spirality: A Novel Way to Measure Spiral Arm Pitch Angle

, 2016
We present the MATLAB code Spirality, a novel method for measuring spiral arm pitch angles by fitting galaxy images to spiral templates of known pitch. Computation time is typically on the order of 2 minutes per galaxy, assuming at least 8 GB of working ...
Boe, Benjamin, Davis, Benjamin L., Hartley, Matthew, Imani, Hamed Pour, Kennefick, Daniel, Kennefick, Julia, Pfountz, Casey, Shields, Douglas W., Slade, Zac   +8 more
core  

Tracing the Spiral Structure of the Outer Milky Way with Dense Atomic Hydrogen Gas

, 2017
We present a new face-on map of dense neutral atomic hydrogen (HI) gas in the outer Galaxy. Our map has been produced from the Leiden/Argentine/Bonn (LAB) HI 21-cm line all-sky survey by finding intensity maxima along every line of sight and then by ...
Balser, Dana S., Kim, Woong-Tae, Koo, Bon-Chul, Lee, Myung Gyoon, Park, Geumsook, Wenger, Trey V., 김웅태   +6 more
core   +1 more source