Results 41 to 50 of about 61,724 (212)

A new method for reconstructing the density distribution of matter in the disks of spiral galaxies from the rotation velocity curve in it

, 2011
In this paper we propose a new method for reconstructing the surface density of matter in flat disks of spiral galaxies. The surface density is expressed through observational rotation velocity curves of visible matter in the disks of spiral galaxies ...
A. A. Shatskiy, Afanasiev, Afanasiev, Afanasiev, Begeman, Bell, Bosma, Bratek, Bratek, Broeils, Hoekstra, I. D. Novikov, I. Yu. Katkov, J. Hansen, Jalocha, Karachentseva, Koleva, Muñoz-Mateos, Noordermeer, Noordermeer, O. K. Silchenko, Percival, Pfenniger, Polyachenko, Polyachenko, Press, Sil’chenko, Sil’chenko, Sil’chenko, Sil’chenko, Toomre, Zasov   +31 more
core   +1 more source

A New Statistical Analysis of the Morphology of Spiral Galaxies

The Astronomical Journal
Morphology is the starting point for understanding galaxies. Elmegreen et al. classified spiral galaxies into flocculent, multiple-arm, and grand-design galaxies based on the regularity of their spiral arm structure.
Junye Wei, Ye Xu, Zehao Lin, Chaojie Hao, Yingjie Li, Dejian Liu, Shuaibo Bian   +6 more
doaj   +1 more source

Detection of CO(J=1-0) Emission from Barred Spiral Galaxies at z~0.1

, 2011
We present the results of CO (J=1-0) observations towards nine barred spiral galaxies at z=0.08-0.25 using the 45-m telescope at Nobeyama Radio Observatory (NRO). This survey is the first one specialized for barred spiral galaxies in this redshift range.
Kuno, Nario, Matsui, Kana, Sorai, Kazuo, Watanabe, Yoshimasa   +3 more
core   +1 more source

Assembling Spiral Galaxies [PDF]

Symposium - International Astronomical Union, 1996
Nearby spiral galaxies offer vital clues to some of the most fundamental questions about galaxy formation and evolution: What is the star formation history of the universe, past and future? When did disks form, during the final stages of a single primeval collapse, or as a continuous or episodic process?
openaire   +1 more source

Microfluidic Engineering of Chitosan‐Coated Nanoemulsions for Controlled Release and Stability in Space Pharmaceutics

Advanced Materials Technologies, EarlyView.
Microfluidic engineering enables the fabrication of chitosan‐coated, melatonin‐loaded nanoemulsions with controlled release and enhanced physicochemical stability for space pharmaceutics. Interfacial biopolymer coating modulates droplet behavior under accelerated thermal stress and simulated microgravity.
Modupe Adebowale, Nguyen Van Duc Long, Philip M Williams, Volker Hessel   +3 more
wiley   +1 more source

JWST Reveals a Surprisingly High Fraction of Galaxies Being Spiral-like at 0.5 ≤ z ≤ 4

The Astrophysical Journal Letters
Spiral arms are one of the most important features used to classify the morphology of local galaxies. The cosmic epoch when spiral arms first appeared contains essential clues to the evolution of disk galaxies.
Vicki Kuhn, Yicheng Guo, Alec Martin, Julianna Bayless, Ellie Gates, AJ Puleo   +5 more
doaj   +1 more source

The Integrated Polarization of Spiral Galaxy Disks

, 2008
We present integrated polarization properties of nearby spiral galaxies at 4.8 GHz, and models for the integrated polarization of spiral galaxy disks as a function of inclination.
A. R. Taylor, Arshakian, Binney, Brown, Brown, Burn, Chyży, Dumke, Dumke, Fletcher, Golla, Grosbøl, Gräve, Han, Heesen, J. M. Stil, Krause, Lambas, M. Krause, Niklas, R. Beck, Simmons, Stil, Taylor, Tüllmann, Wilman   +25 more
core   +1 more source

The HI Tully-Fisher Relation of Early-Type Galaxies [PDF]

, 2015
We study the HI K-band Tully-Fisher relation and the baryonic Tully-Fisher relation for a sample of 16 early-type galaxies, taken from the ATLAS3D sample, which all have very regular HI disks extending well beyond the optical body (> 5 R_eff). We use the
Cappellari, Michele, Davis, Timothy A., de Zeeuw, P. Tim, Duc, Pierre-Alain, Emsellem, Eric, Heijer, Milan den, Jozsa, Gyula I. G., Kerp, Juergen, Krajnovic, Davor, McDermid, Richard M., Morganti, Raffaella, Naab, Torsten, Oosterloo, Tom A., Serra, Paolo, Weijmans, Anne-Marie   +14 more
core   +7 more sources

Nuclear Spirals in Galaxies [PDF]

, 2008
6 pages, 4 figures, to appear in ""Mapping the Galaxy and Nearby Galaxies", Eds. K. Wada and F.
openaire   +2 more sources

Rotation Curves of 967 Spiral Galaxies [PDF]

The Astrophysical Journal Supplement Series, 1995
We present the rotation curves (RCs) of 967 spiral galaxies, obtained by folding and deprojecting the raw optical data by Mathewson et al. (1992). Out of these, we have identified 80 excellent RCs and 820 fair RCs. The 80 excellent RCs are smooth, symmetric, have negligible rms internal error, extend to at least the optical radius, and have high and ...
Persic, M., Salucci, P.
openaire   +3 more sources