CALIFA reveals prolate rotation in massive early-type galaxies: A polar galaxy merger origin?
Sign Up to like & getrecommendations! Published in 2017 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201630218
Abstract: We present new evidence for eight early-type galaxies (ETGs) from the CALIFA Survey that show clear rotation around their major photometric axis (“prolate rotation”). These are LSBCF560-04, NGC 0647, NGC 0810, NGC 2484, NGC 4874,… read more here.
Keywords: merger; rotation; type galaxies; prolate rotation ... See more keywords
Cold gas and dust: Hunting spiral-like structures in early-type galaxies
Sign Up to like & getrecommendations! Published in 2020 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201935090
Abstract: Observations of neutral hydrogen (HI) and molecular gas show that 50% of all nearby early-type galaxies (ETGs) contain some cold gas. Molecular gas is always found in small gas discs in the central region of… read more here.
Keywords: gas dust; cold gas; gas; dust ... See more keywords
The ASAS-SN catalogue of variable stars – VII. Contact binaries are different above and below the Kraft break
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa518
Abstract: We characterize ${\sim } 71\, 200$ W Ursae Majoris (UMa) type (EW) contact binaries, including ${\sim } 12\, 600$ new discoveries, using All-Sky Automated Survey for SuperNovae (ASAN-SN)V-band all-sky light curves along with archival data… read more here.
Keywords: type binaries; period; late type; type ... See more keywords
Total mass density slopes of early-type galaxies using Jeans dynamical modelling at redshifts 0.29 < z < 0.55
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab1996
Abstract: The change of the total mass density slope, γ, of early-type galaxies through cosmic time is a probe of evolutionary pathways. Hydrodynamical cosmological simulations show that at high redshifts density profiles of early-type galaxies were… read more here.
Keywords: dynamical modelling; density; density slopes; type galaxies ... See more keywords
X-ray properties of early-type stars in the Tarantula Nebula from T-ReX
Sign Up to like & getrecommendations! Published in 2022 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stac1952
Abstract: We reassess the historical LX/LBol relation for early-type stars from a comparison between T-ReX, the Chandra ACIS X-ray survey of the Tarantula Nebula in the Large Magellanic Cloud (LMC), and contemporary spectroscopic analysis of massive… read more here.
Keywords: tarantula nebula; ray; stars tarantula; lbol ... See more keywords
The MASSIVE Survey - V. Spatially-Resolved Stellar Angular Momentum, Velocity Dispersion, and Higher Moments of the 41 Most Massive Local Early-Type Galaxies
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stw2330
Abstract: We present spatially-resolved two-dimensional stellar kinematics for the 41 most massive early-type galaxies (MK ~ 10^11.8 Msun) of the volume-limited (D < 108 Mpc) MASSIVE survey. For each galaxy, we obtain high-quality spectra in the… read more here.
Keywords: velocity; sigma; survey; type galaxies ... See more keywords
IMF and [Na/Fe] abundance ratios from optical and NIR spectral features in early-type galaxies
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stw2407
Abstract: We present a joint analysis of the four most prominent sodium-sensitive features (Na D, Na I λ8190A, Na I λ1.14 μm, and Na I λ2.21 μm), in the optical and near-infrared spectral ranges, of two… read more here.
Keywords: abundance ratios; imf abundance; ratios optical; type galaxies ... See more keywords
Deep Chandra observations of NGC 7457, the X-ray point source populations of a low mass early-type galaxy
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stw3375
Abstract: We present the X-ray point source population of NGC 7457 based on 124 ks of Chandra observations. Previous deep Chandra observations of low mass X-ray binaries (LMXBs) in early-type galaxies have typically targeted the large… read more here.
Keywords: ngc 7457; low mass; ray; early type ... See more keywords
The hELENa project - I. Stellar populations of early-type galaxies linked with local environment and galaxy mass
Sign Up to like & getrecommendations! Published in 2017 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stx1138
Abstract: We present the first in a series of papers in The role of Environment in shaping Low-mass Early-type Nearby galaxies (hELENa) project. In this paper, we combine our sample of 20 low-mass early types (dEs)… read more here.
Keywords: helena project; mass; local environment; type galaxies ... See more keywords
The imprint of the thick stellar disc in the mid-plane of three early-type edge-on galaxies in the Fornax cluster
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty3268
Abstract: Galactic stellar discs, such as that of the Milky Way consisting of a thin and a thick component, have usually a complex structure. The study of galactic disc substructures and their differences can shed light… read more here.
Keywords: fornax cluster; cluster; galaxies fornax; thick ... See more keywords
The influence of galaxy environment on the stellar initial mass function of early-type galaxies
Sign Up to like & getrecommendations! Published in 2018 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/sty528
Abstract: In this paper, we investigate whether the stellar initial mass function (IMF) of early-type galaxies depends on their host environment. To this purpose, we have selected a sample of early-type galaxies from the SPIDER catalogue,… read more here.
Keywords: mass; stellar initial; type galaxies; environment ... See more keywords