Results 31 to 40 of about 6,720 (201)
Formation of Magnesium Carbonates on Earth and Implications for Mars
Journal of Geophysical Research: Planets, Volume 126, Issue 7, July 2021., 2021 Abstract Magnesium carbonates have been identified within the landing site of the Perseverance rover mission. This study reviews terrestrial analog environments and textural, mineral assemblage, isotopic, and elemental analyses that have been applied to establish formation conditions of magnesium carbonates.
Eva L. Scheller +12 more
wiley +1 more source
Lenticular galaxies with ultraviolet rings [PDF]
Astronomy Letters, 2011 Based on GALEX (Galaxy Ultraviolet Explorer) data, we have compiled a list of lenticular galaxies with ultraviolet rings—radially localized star-forming regions. We have analyzed the optical structure of these galaxies using SDSS (Sloan Digital Sky Survey) surface photometry, measured the colors of the rings, and compared the radial localizations of ...
M. A. Ilyina, O. K. Sil’chenko
openaire +1 more source
Dense Molecular Gas in Lenticular Galaxies [PDF]
Publications of the Astronomical Society of Japan, 2002 We made CO and HCN simultaneous observations of lenticular galaxies (NGC 404, NGC 3593, and NGC 4293) and detected HCN emission in NGC 3593 and NGC 4293 as well as CO in all the galaxies. The $I_\mathrm{HCN} / I_\mathrm{CO}$ ratios were $0.025 \pm 0.006$ and $0.066 \pm 0.005$ in NGC 3593 and NGC 4293, respectively, which are comparable to that of late ...
Nario Kuno +4 more
openalex +3 more sources
Outer disks of lenticular galaxies [PDF]
Proceedings of the International Astronomical Union, 2011 By studying the stellar population properties along the radius in 15 nearby S0 galaxies, I have found that the outer stellar disks are mostly old, with the SSP-equivalent ages of 8-15 Gyr, being often older than the bulges. This fact puts into doubt a currently accepted paradigm that S0 galaxies have formed at z=0.4 by quenching star formation in ...
openaire +3 more sources
Tomography of the Ie-Re and L-Sigma Planes
Universe, 2021 We have analyzed the distribution of early-type galaxies (ETGs) in the effective surface intensity vs. effective radius (Ie−Re) plane and in the total luminosity vs. central stellar velocity dispersion (L−σ) diagram, with the aim of studying the physical
Mauro D’Onofrio, Cesare Chiosi
doaj +1 more source
The SLUGGS Survey: Understanding Lenticular Galaxy Formation via Extended Stellar Kinematics
Galaxies, 2017 We present the latest published and preliminary results from the SLUGGS Survey discussing the formation of lenticular galaxies through analysis of their kinematics.
Sabine Bellstedt
doaj +1 more source
Galaxies, 2015 I discuss my latest observational data and ideas about decoupled gaseous subsystems in nearby lenticular galaxies. As an extreme case of inclined gaseous disks, I demonstrate a sample of inner polar disks, derive their incidence, about 10% among the ...
Olga Sil’chenko
doaj +1 more source
Angular Momentum across the Hubble sequence from the CALIFA survey [PDF]
, 2014 We investigate the stellar angular momentum of galaxies across the Hubble sequence from the CALIFA survey. The distribution of CALIFA elliptical and lenticular galaxies in the $\lambda_{\rm Re}-\epsilon_{\rm e}$ diagram is consistent with that shown by ...
collaboration, the CALIFA +3 more
core +1 more source
Exponential bulges and antitruncated disks in lenticular galaxies [PDF]
Proceedings of the International Astronomical Union, 2008 AbstractThe presence of exponential bulges and anti-truncated disks has been noticed in many lenticular galaxies. In fact, it could be expected because the very formation of S0 galaxies includes various processes of secular evolution. We discuss how to distinguish between a pseudobulge and an anti-truncated disk, and also what particular mechanisms may
Olga K. Sil'chenko
openalex +3 more sources
Lack of FIBRILLIN6 in Arabidopsis thaliana affects light acclimation and sulfate metabolism
New Phytologist, Volume 225, Issue 4, Page 1715-1731, February 2020., 2020 Summary Arabidopsis thaliana contains 13 fibrillins (FBNs), which are all localized to chloroplasts. FBN1 and FBN2 are involved in photoprotection of photosystem II, and FBN4 and FBN5 are thought to be involved in plastoquinone transport and biosynthesis, respectively. The functions of the other FBNs remain largely unknown.
Kwanuk Lee +8 more
wiley +1 more source