Results 51 to 60 of about 245,182 (218)
The Origin of Star-forming Rings in S0 Galaxies
The Astrophysical Journal, 2023 Spatially resolved integral field spectroscopic maps in a sample of 532 S0 galaxies from the MaNGA survey have unveiled the existence of inner rings (〈 R 〉 ∼ 1 R _e ) betraying ongoing star formation in a number of these objects.
J. L. Tous +3 more
doaj +1 more source
Sedimentology, Volume 69, Issue 5, Page 2284-2318, August 2022., 2022 Abstract The sedimentary record of the Pahrump Group in Death Valley comprises well‐exposed successions of mixed carbonate and siliciclastic deposits. Despite the abundance of studies focussing on the depositional dynamics of mixed carbonate – siliciclastic deposition in the Phanerozoic, the record of similar Proterozoic examples is comparatively ...
Daniel Smrzka +7 more
wiley +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 ...
Kazuo Sorai +4 more
openaire +3 more sources
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
Dynamical models of two lenticular galaxies: NGC 1023 and NGC 4526 [PDF]
Serbian Astronomical Journal, 2017 We study kinematics and dynamics of two lenticular galaxies that possess globular clusters (GCs) which extend beyond approximately seven effective radii. We analyze two nearby lenticular galaxies, NGC 1023 and NGC 4526, based on their GCs. We extract the
Samurović S.
doaj +1 more source
The Effect of Superpositions on the Planetary Nebula Luminosity Function
The Astrophysical Journal, 2023 Planetary nebula (PN) surveys in systems beyond ∼10 Mpc often find high-excitation, point-like sources with [O iii ] λ 5007 fluxes greater than the apparent bright-end cutoff of the planetary nebula luminosity function (PNLF).
Owen Chase +3 more
doaj +1 more source
The present-day globular cluster kinematics of lenticular galaxies from the E-MOSAICS simulations and their relation to the galaxy assembly histories [PDF]
Monthly notices of the Royal Astronomical Society, 2022 We study the present-day rotational velocity (Vrot) and velocity dispersion (σ) profiles of the globular cluster (GC) systems in a sample of 50 lenticular (S0) galaxies from the E-MOSAICS galaxy formation simulations.
A. Dolfi +7 more
semanticscholar +1 more source
Lenticular galaxies in the process of evolution [PDF]
Proceedings of the International Astronomical Union, 2007 AbstractWe present images of a number of lenticular galaxies which appear to be undergoing evolutionary processes such as ram-pressure stripping or gravitational interactions, or possess features indicative of some evolutionary process in the recent past, such as fossil spiral arms, a polar ring-like structure, or a warped disk with box-peanut bulge ...
J. Meaburn +3 more
openaire +2 more sources
Measuring the mass of the supermassive black hole of the lenticular galaxy NGC 4546 [PDF]
, 2020 Most galaxies with a well-structured bulge host a supermassive black hole (SMBH) in their centre. Stellar kinematics models applied to adaptive optics (AO) assisted integral field unit observations are well-suited to measure the SMBH mass ($M_{BH}$) and ...
T. Ricci, J. Steiner
semanticscholar +1 more source
Fornax 3D project: a two-dimensional view of the stellar initial mass function in the massive lenticular galaxy FCC 167 [PDF]
Astronomy & Astrophysics, 2019 The stellar initial mass function (IMF) regulates the baryonic cycle within galaxies, and is a key ingredient for translating observations into physical quantities.
I. Martín-Navarro +14 more
semanticscholar +1 more source