Zobrazeno 1 - 10
of 25 654
pro vyhledávání: '"Leo I"'
The dwarf spheroidal galaxies (dSphs) satellites of the Milky Way (MW) are nearby astrophysical laboratories to study the nature of dark matter (DM). We present some properties of the DM halos of the three classical dSphs Fornax, Sculptor and Leo I,
Externí odkaz:
http://arxiv.org/abs/2411.05084
Publikováno v:
A&A 684, L19 (2024)
It has been recently claimed that a surprisingly massive black hole (BH) is present in the core of the dwarf spheroidal galaxy (dSph) Leo I. Based on integral field spectroscopy, this finding challenges the typical expectation of dSphs hosting BHs of
Externí odkaz:
http://arxiv.org/abs/2403.14784
Autor:
Mihos, J. Christopher, Durrell, Patrick R., Watkins, Aaron E., McGaugh, Stacy S., Feldmeier, John J.
We use deep Hubble Space Telescope imaging to study the resolved stellar populations in BST1047+1156, a gas-rich, ultradiffuse dwarf galaxy found in the intragroup environment of the Leo I galaxy group. While our imaging reaches approximately two mag
Externí odkaz:
http://arxiv.org/abs/2401.03985
Publikováno v:
The Astrophysical Journal Letters, 2023, Volume 956, Number 2
A recent study found dynamical evidence of a supermassive black hole of $\sim 3 \times 10^{6} \, \rm M_\odot$ at the center of Leo I, the most distant dwarf spheroidal galaxy of the Milky Way. This black hole, comparable in mass to the Milky Way's Sg
Externí odkaz:
http://arxiv.org/abs/2309.02487
Autor:
Pacucci, Fabio, Loeb, Abraham
Publikováno v:
The Astrophysical Journal Letters, 2022, Volume 940, Number 2
A supermassive black hole (SMBH) of $\sim 3\times 10^6 \, \rm M_\odot$ was recently detected via dynamical measurements at the center of the dwarf galaxy Leo I. Standing $\sim 2$ orders of magnitude above standard scaling relations, this SMBH is host
Externí odkaz:
http://arxiv.org/abs/2211.00019
Autor:
Taylor, Rhys, Koppen, Joachim, Jachym, Pavel, Minchin, Robert, Palous, Jan, Rosenberg, Jessica, Schneider, Steven, Wunsch, Richard, Deshev, Boris
Using data from the Arecibo Galaxy Environment Survey, we report the discovery of five HI clouds in the Leo I group without detected optical counterparts. Three of the clouds are found midway between M96 and M95, one is only 10$^{\prime}$ from the so
Externí odkaz:
http://arxiv.org/abs/2209.10994
Observational evidence is mounting regarding the population demographics of Massive Black Holes (MBHs), from the most massive cluster galaxies down to the dwarf galaxy regime. However, the progenitor pathways from which these central MBHs formed rema
Externí odkaz:
http://arxiv.org/abs/2208.02546
Autor:
Hartke, J., Arnaboldi, M., Gerhard, O., Coccato, L., Merrifield, M., Kuijken, K., Pulsoni, C., Agnello, A., Bhattacharya, S., Spiniello, C., Cortesi, A., Freeman, K. C., Napolitano, N. R., Romanowsky, A. J.
Publikováno v:
A&A 663, A12 (2022)
M105 is an early-type galaxy in the nearby Leo I group, the closest galaxy group to contain all galaxy types and therefore an excellent environment to explore the low-mass end of intra-group light (IGL) assembly. We present a new extended kinematic s
Externí odkaz:
http://arxiv.org/abs/2201.08710