Results 121 to 130 of about 293,596 (222)
A spectroscopic map of the Galactic centre
Astronomy & AstrophysicsContext. The centre of the Milky Way is occupied by a dense nuclear star cluster that contains the supermassive black hole Sgr A⋆. The mildly flattened cluster is embedded in the larger surrounding nuclear stellar disc.
Feldmeier-Krause A. +5 more
doaj +1 more source
The location and kinematics of the emission line regions in Active Galactic Nuclei [PDF]
, 2008 This thesis contains the results from a study of the optical emission lines of various samples of active galactic nuclei (AGN). We have used three separate techniques to determine the precise kinematics and the relative location of the emission line ...
Mullaney, J R, Mullaney, J.R.
core
A Dual Active Black Hole Candidate with Mass Ratio ~7:1 in a Disk Galaxy
The Astrophysical Journal LettersDual active galactic nuclei (AGNs) with comparable masses are commonly witnessed among the major merged galaxies with interaction remnants. Considering almost every massive galaxy is associated with multiple dwarf satellites around it, minor mergers ...
Xiao Cao +10 more
doaj +1 more source
Stellar kinematics using a third integral of motion: method and application on the Andromeda galaxy
We probe the feasibility of describing the structure of a multicomponent axisymmetric galaxy with a dynamical model based on the Jeans equations while taking into account a third integral of motion.
Tihhonova, O. +4 more
core +1 more source
The Astrophysical Journal4C+29.30 is a postmerger galaxy hosting a rejuvenated active galactic nucleus (AGN) with a complex multiscale radio morphology, making it an ideal laboratory to study the interplay between different AGN feedback modes.
Xiao Cao +7 more
doaj +1 more source
Phase spirals induced by the gas warp
Astronomy & AstrophysicsContext. The discovery of the phase space-spirals in the Solar neighborhood in Gaia Data Release 2 has prompted various attempts to understand their origin. A source of bending waves that has been neglected as a cause of the phase spiral is irregular gas
Wang Shuyu +3 more
doaj +1 more source
88th Annual Meeting of the Meteoritical Society 2026: Abstracts
Meteoritics &Planetary Science, Volume 61, Issue S1, Page S48-S551, August 2026.
wiley +1 more source
The Astrophysical JournalWe present a new dynamical measurement of the supermassive black hole mass and intrinsic shape of the stellar halo of the massive radio galaxy NGC 315 as part of the MASSIVE survey.
Jacob Pilawa +4 more
doaj +1 more source
Star formation complexes in the `galaxy-sized' supergiant shell of the galaxy HolmbergI
, 2018 We present the results of observations of the galaxy Holmberg I carried out at the Russian 6-m telescope in the narrow-band imaging, long-slit spectroscopy, and scanning Fabry-Perot interferometer modes.
Alexei V Moiseev +7 more
core +1 more source
Misaligned Gas Acquisition as a Formation Pathway of S0 Galaxies
The Astrophysical JournalWe analyze a sample of 753 S0 galaxies from the MPL-10 of Mapping Nearby Galaxies at Apache Point Observatory survey and investigate the gas–star kinematic misalignment and merger remnant fraction in galaxies with different morphological types.
Yuren Zhou +5 more
doaj +1 more source