Growth of black holes at the centre of early-type galaxies in MOND
Sign Up to like & getrecommendations! Published in 2025 at "Publications of the Astronomical Society of Australia"
DOI: 10.1017/pasa.2025.10034
Abstract: Abstract The formation of supermassive black holes (SMBHs) in early-type galaxies (ETGs) is a key challenge for galaxy formation theories. Using the monolithic collapse models of ETGs formed in Milgromian Dynamics (MOND) from Eappen et… read more here.
Keywords: type galaxies; mond; gas; early type ... See more keywords
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
Understanding the origin of early-type dwarfs: The spectrophotometric study of CGCG014-074
Sign Up to like & getrecommendations! Published in 2024 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stae2063
Abstract: Early-type dwarf galaxies constitute a prevalent population in the central regions of rich groups and clusters in the local Universe. These low-luminosity and low-mass stellar systems play a fundamental role in the assembly of the… read more here.
Keywords: origin early; history; cgcg014 074; early type ... See more keywords
Stellar populations of massive early-type galaxies observed by MUSE
Sign Up to like & getrecommendations! Published in 2024 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stae448
Abstract: Stellar population studies of massive early-type galaxies (ETGs) suggest that the stellar initial mass function may not be universal. In particular, the centres of ETGs seem to contain an excess of low-mass dwarf stars compared… read more here.
Keywords: stellar populations; type galaxies; populations massive; massive early ... 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