Results 161 to 170 of about 394,077 (286)
The Astrophysical JournalWe report results from a systematic wide-area search for faint dwarf galaxies at heliocentric distances from 0.3 to 2 Mpc using the full 6 yr of data from the Dark Energy Survey (DES).
M. McNanna +66 more
doaj +1 more source
The Ecosystem Of Dwarf Galaxies
, 2017 It remains unclear what physical mechanisms are triggering starbursts in low-mass galaxies and what is the effect of stellar feedback in their shallow potential wells. We study a sample of 18 nearby starburst dwarfs using multi-wavelength data, including interferometric HI observations, HST imaging, and MUSE integral-field spectroscopy.
openaire +2 more sources
Gas heating from spinning and non-spinning evaporating primordial black holes
Physics Letters B, 2021 Primordial black holes (PBHs) from the early Universe constitute a viable dark matter (DM) candidate and can span many orders of magnitude in mass. Light PBHs with masses around 1015 g contribute to DM and will efficiently evaporate through Hawking ...
Ranjan Laha +2 more
doaj
Globular Clusters in Dwarf Galaxies [PDF]
The Astronomical Journal, 2006 Data are presently available on the luminosities and half-light radii of 101 globular clusters associated with low-luminosity parent galaxies. The luminosity distribution of globulars embedded in dwarf galaxies having $M_{v} > -16$ is found to differ dramatically from that for globular clusters surrounding giant host galaxies with $M_{v} < -16 ...
openaire +4 more sources
Forecasts for Galaxy Formation and Dark Matter Constraints from Dwarf Galaxy Surveys
The Astrophysical JournalThe abundance of faint dwarf galaxies is determined by the underlying population of low-mass dark matter (DM) halos and the efficiency of galaxy formation in these systems. Here, we quantify potential galaxy formation and DM constraints from future dwarf
Ethan O. Nadler +6 more
doaj +1 more source
The Dwarf Satellites of M31 and the Galaxy [PDF]
The Astronomical Journal, 2006 The satellite systems of M31 and the Galaxy are compared. It is noted that all five of the suspected stripped dSph cores of M31 companions are located within a projected distance of 40 kpc of from the nucleus of this galaxy, whereas the normal dSph companions to this object have distances > 40 kpc from the center of M31.
openaire +3 more sources
Intermediate Mass Ratio Inspirals in Milky Way Galaxies
The Astrophysical JournalA consequence of a nonzero occupation fraction of massive black holes (MBHs) in dwarf galaxies is that these MBHs can become residents of larger galaxy halos via hierarchical merging and tidal stripping.
Jillian Bellovary +5 more
doaj +1 more source
HI Observations Towards the Sagittarius Dwarf Spheroidal Galaxy [PDF]
, 1999 We have measured the 21-cm line of Galactic HI over more than 50 square degrees in the direction of the Sagittarius dwarf spheroidal galaxy. The data show no evidence of HI associated with the dwarf spheroidal which might be consider analogous to the ...
Burton, W. B., Lockman, Felix J.
core +2 more sources
Dwarf Galaxies and Globular Clusters [PDF]
Proceedings of the International Astronomical Union, 2012 AbstractI briefly explore some relevant connections and differences between the evolutionary paths of dwarf galaxies and globular clusters.
openaire +4 more sources
The Astrophysical JournalWe are entering an era in which we will be able to detect and characterize hundreds of dwarf galaxies within the Local Volume. It is already known that a strong dichotomy exists in the gas content and star formation properties of field dwarf galaxies ...
Charlotte R. Christensen +7 more
doaj +1 more source