Results 131 to 140 of about 18,261 (272)

N-body model for M51 - II. Inner structure [PDF]

Monthly Notices of the Royal Astronomical Society, 2000
The spiral structure of M51 (NGC 5194) is studied by 3D N-body simulations utilizing particles, with main interest in the stellar spirals observed in near-IR within 30 arcsec of the centre of M51. A multiple-encounter tidal model for the interaction with the nearby companion (NGC 5195) is studied, capable of accounting for the main spiral structure of ...
H. Salo, E. Laurikainen
openaire   +1 more source

Identification of the Red Supergiant Progenitor of Supernova 2005cs: Do the Progenitors of Type II-P Supernovae Have Low Mass?

, 2005
The stars that end their lives as supernovae (SNe) have been directly observed in only a handful of cases, due mainly to the extreme difficulty in identifying them in images obtained prior to the SN explosions.
Adam G. Riess, Alexei V. Filippenko, Barbon R., Chugai N. N., Della Valle M., Gal-Yam A., Georgiev T. B., Immler S., Issa M. R., Jean‐Charles Cuillandre, Joshua S. Bloom, Kloehr W., Leaman J., Li W., Li W., Li W., Li W., Mario Livio, Maund J. R., Modjaz M., Munari U., Mutchler M., Saurabh Jha, Schuyler D. Van Dyk, Stathakis R. A., Weidong Li   +25 more
core   +3 more sources

The Contribution Of Outer HI Disks To The Merging Binary Black Hole Population

, 2017
We investigate the contribution of outer HI disks to the observable population of merging black hole binaries. Like dwarf galaxies, the outer HI disks of spirals have low star formation rates and lower metallicities than the inner disks of spirals. Since
Belczynski, Chris, Bellovary, Jillian, Brooks, Alyson, Chakrabarti, Sukanya, Chang, Philip, Gladysz, Wojciech, O'Shaughnessy, Richard, Shen, Sijing   +7 more
core   +1 more source

The spread of new viral pathogens and phytoplasmas in cultivated plants and their risks

Food Risk Assess Europe, Volume 4, Issue 1, January 2026.
Abstract The study contains a description of the genome and particles, spectrum of host plants, geographical distribution, forecast of spread and impacts on agricultural production, disease symptoms, life cycle, and means of protection in integrated and organic production in the Czech Republic for 22 plant viruses, 3 viroids and 4 phytoplasmas, in ...
wiley   +1 more source

Spikes in the SED and Ripples in the Outskirts of Galaxies

, 2012
We describe a new method that allows us to quantitatively characterize galactic satellites from analysis of disturbances in outer gas disks, without requiring knowledge of their optical light.
Chang, Salo, Sukanya Chakrabarti
core   +1 more source

A Method to Extract Spatially Resolved Polycyclic Aromatic Hydrocarbon Emission from Spitzer Spectra: Application to M51 [PDF]

, 2020
Lulu Zhang, Luis C. Ho, Yanxia Xie
openalex   +1 more source

Bis(morpholin-4-ium) tetrachloridocobalt(II)

Acta Crystallographica Section E, 2012
The title compound, (C4H10NO)2[CoCl4], is an ionic compound consisting of two protonated tetrahydro-1,4-oxazine (morpholine) cations and a [CoCl4]2− dianion. The CoII ion is in a tetrahedral coordination geometry.
Wen-Zhen Wang, Rayyat Huseyn Ismayilov, Gene-Hsiang Lee, Yuh-Sheng Wen, Shie-Ming Peng   +4 more
doaj   +1 more source

Ultraviolet Colors and Extinctions of HiiRegions in the Whirlpool Galaxy (M51) [PDF]

, 1997
J. K. Hill, William H. Waller, R. H. Cornett, R. C. Bohlin, K. P. Cheng, S. G. Neff, Robert W. O'Connell, Morton S. Roberts, Andrew M. Smith, P. Hintzen, Eric P. Smith, T. P. Stecher   +11 more
openalex   +1 more source

[N,N-Bis(diphenylphosphino)propylamine-κ2P,P′]dichloridoplatinum(II)

Acta Crystallographica Section E, 2010
The Pt(II) atom in the title compound, [PtCl2(C27H27NP2)], has a highly distorted square-planar geometry, as evidenced by the P—Pt—P bite angle [72.4 (1)°].
Nicoline Cloete, Hendrik G. Visser, Andreas Roodt   +2 more
doaj   +1 more source

Erratum: “The Nuclear Region of M51 Imaged with the [ITAL]HST[/ITAL] Planetary Camera” [Astron. J. [BF]113[/BF], 225 (1997)] [PDF]

, 1998
Carl J. Grillmair, S. M. Faber, Tod R. Lauer, J. J. Hester, C. R. Lynds, E. J. O’Neil, Paul A. Scowen   +6 more
openalex   +1 more source