Low-acceleration dwarf galaxies as tests of quantised inertia
Sign Up to like & getrecommendations! Published in 2017 at "Astrophysics and Space Science"
DOI: 10.1007/s10509-017-3039-6
Abstract: Dwarf satellite galaxies of the Milky Way appear to be gravitationally bound, but their stars’ orbital motion seems too fast to allow this given their visible mass. This is akin to the larger-scale galaxy rotation… read more here.
Keywords: acceleration dwarf; low acceleration; quantised inertia; dwarf galaxies ... See more keywords
Dwarf galaxies might not be the birth sites of supermassive black holes
Sign Up to like & getrecommendations! Published in 2019 at "Nature Astronomy"
DOI: 10.1038/s41550-018-0662-2
Abstract: Intermediate-mass black holes (BHs) in local dwarf galaxies are considered the relics of the early seed BHs. However, their growth might have been impacted by galaxy mergers and BH feedback so that they cannot be… read more here.
Keywords: might birth; seed; black holes; birth sites ... See more keywords
Chemical and stellar properties of star-forming dwarf galaxies
Sign Up to like & getrecommendations! Published in 2022 at "Nature Astronomy"
DOI: 10.1038/s41550-021-01575-x
Abstract: Dwarf galaxies are the least massive, most abundant and most widely distributed type of galaxy. Hence, they are key to testing theories of galaxy and Universe evolution. Dwarf galaxies sufficiently close to have their gas… read more here.
Keywords: properties star; dwarf galaxies; star forming; forming dwarf ... See more keywords
The interacting nature of dwarf galaxies hosting superluminous supernovae
Sign Up to like & getrecommendations! Published in 2020 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202038176
Abstract: (Abridged) Type I superluminous supernovae (SLSNe I) are rare, powerful explosions whose mechanism and progenitors remain elusive. SLSNe I show a preference for low-metallicity, actively star-forming dwarf galaxies. We investigate whether the hosts of SLSNe… read more here.
Keywords: superluminous supernovae; galaxies hosting; number; dwarf ... See more keywords
Signatures of quenching in dwarf galaxies in local galaxy clusters
Sign Up to like & getrecommendations! Published in 2021 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/202039408
Abstract: The transformation of late-type galaxies has been suggested as the origin of early-type dwarf galaxies in galaxy clusters. Venhola et al. analysed correlations between colour and surface brightness for galaxies in the Fornax cluster binned… read more here.
Keywords: surface brightness; galaxy clusters; type galaxies; cluster ... See more keywords
Radial stellar populations of AGN-host dwarf galaxies in SDSS-IV MaNGA survey
Sign Up to like & getrecommendations! Published in 2021 at "Research in Astronomy and Astrophysics"
DOI: 10.1088/1674-4527/21/8/204
Abstract: Based on MaNGA integral field unit (IFU) spectroscopy we search 60 AGN candidates, which have stellar masses M? 6 5 × 10M and show AGN ionization signatures in the BPT diagram. For these AGN candidates,… read more here.
Keywords: stellar age; mean stellar; host; metallicity ... See more keywords
Exploring chemical homogeneity in dwarf galaxies: a VLT-MUSE study of JKB 18
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa1280
Abstract: Deciphering the distribution of metals throughout galaxies is fundamental in our understanding of galaxy evolution. Nearby, low-metallicity, star-forming dwarf galaxies, in particular, can offer detailed insight into the metal-dependent processes that may have occurred within… read more here.
Keywords: vlt muse; study; dwarf; jkb ... See more keywords
Inverted metallicity gradients in two Virgo cluster star-forming dwarf galaxies: evidence of recent merging?
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa2382
Abstract: We present integral field spectroscopy observations of two star-forming dwarf galaxies in the Virgo cluster (VCC135 and VCC324) obtained with PMAS/PPak at the Calar Alto 3.5 meter telescope. We derive metallicity maps using the N2… read more here.
Keywords: forming dwarf; virgo cluster; gas; star forming ... See more keywords
SHαDE: survey description and mass–kinematics scaling relations for dwarf galaxies
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa2716
Abstract: The Study of H α from Dwarf Emissions (SHαDE) is a high spectral resolution (R = 13 500) H α integral field survey of 69 dwarf galaxies with stellar masses 106 < M⋆ < 109… read more here.
Keywords: survey; mass; kinematics; scaling relation ... See more keywords
The effects of dwarf galaxies on the orbital evolution of galactic globular clusters
Sign Up to like & getrecommendations! Published in 2020 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/staa2773
Abstract: We investigate the effect that dwarf galaxies have on the orbits, tidal histories, and assumed formation environment of Milky Way globular clusters. We determine the orbits of the Milky Way's 150 globular clusters in a… read more here.
Keywords: orbital evolution; effects dwarf; galaxies orbital; globular clusters ... See more keywords
The origins of off-centre massive black holes in dwarf galaxies
Sign Up to like & getrecommendations! Published in 2021 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stab1665
Abstract: Massive black holes often exist within dwarf galaxies, and both simulations and observations have shown that a substantial fraction of these may be off-centre with respect to their hosts. We trace the evolution of off-centre… read more here.
Keywords: galaxy; black holes; centre massive; origins centre ... See more keywords