Results 1 to 10 of about 65,956 (218)

Dwarf Galaxies in Voids: Dark Matter Halos and Gas Cooling [PDF]

open access: yesAdvances in Astronomy, 2010
Galaxy surveys have shown that luminous galaxies are mainly distributed in large filaments and galaxy clusters. The remaining large volumes are virtually devoid of luminous galaxies.
Matthias Hoeft, Stefan Gottlöber
doaj   +4 more sources

Constraining Star-Formation Driven Outflows in Local Dwarf Galaxies with Herschel

open access: yesPhysical Sciences Forum, 2023
Galactic feedback (i.e., outflows) plays a fundamental role in regulating galaxy formation and evolution. We investigate the physical properties of galactic outflows in a sample of 29 local low-metallicity dwarf galaxies drawn from the Dwarf Galaxy ...
Michael Romano
doaj   +1 more source

The High-mass X-Ray Binary Luminosity Functions of Dwarf Galaxies

open access: yesThe Astrophysical Journal
Drawing from the Chandra archive and using a carefully selected set of nearby dwarf galaxies, we present a calibrated high-mass X-ray binary (HMXB) luminosity function in the low-mass galaxy regime and search for an already hinted at dependence on ...
Robel Geda   +4 more
doaj   +1 more source

PEARLS: A Potentially Isolated Quiescent Dwarf Galaxy with a Tip of the Red Giant Branch Distance of 30 Mpc

open access: yesThe Astrophysical Journal Letters
A wealth of observations have long suggested that the vast majority of isolated classical dwarf galaxies ( M _* = 10 ^7 –10 ^9 M _⊙ ) are currently star forming.
Timothy Carleton   +27 more
doaj   +1 more source

The VVVX quest for satellites around the Circinus galaxy

open access: yesAstronomy & Astrophysics
Context. The Circinus galaxy is the nearest type-2 Seyfert galaxy, located at a distance of 4.2 Mpc. Its environment is challenging to explore because of the low Galactic latitudes of its location, behind the disc of the Milky Way. Aims.
Baravalle L. D.   +12 more
doaj   +1 more source

Exploring the Evolution of a Dwarf Spheroidal Galaxy with SPH Simulations. II. AGN Feedback

open access: yesThe Astrophysical Journal
We investigate active galactic nucleus (AGN) feedback from an intermediate-mass black hole at the center of a dwarf spheroidal galaxy, by performing isolated galaxy simulations using a modified version of the GADGET-3 code. We consider Leo II (PGC 34176)
Roberto Hazenfratz   +3 more
doaj   +1 more source

Searching for nearby diffuse dwarf galaxies in the COSMOS field

open access: yesFrontiers in Astronomy and Space Sciences
It remains challenging to systematically survey nearby diffuse dwarf galaxies and address the formation mechanism of this population distinguishing from regular ones.
Dong Dong Shi   +7 more
doaj   +1 more source

It’s a Breeze: The Circumgalactic Medium of a Dwarf Galaxy Is Easy to Strip

open access: yesThe Astrophysical Journal
The circumgalactic medium (CGM) of star-forming dwarf galaxies plays a key role in regulating the galactic baryonic cycle. We investigate how susceptible the CGM of dwarf satellite galaxies is to ram pressure stripping in Milky Way–like environments.
Jingyao Zhu   +3 more
doaj   +1 more source

Tidal Disruption of Milky Way Satellites with Shallow Dark Matter Density Profiles

open access: yesGalaxies, 2016
Dwarf galaxies of the Local Group provide unique possibilities to test current theories of structure formation. Their number and properties have put the broadly accepted cold dark matter model into question, posing a few problems. These problems now seem
Ewa L. Łokas
doaj   +1 more source

In Pursuit of the Least Luminous Galaxies

open access: yesAdvances in Astronomy, 2010
The dwarf galaxy companions to the Milky Way are unique cosmological laboratories. With luminosities as low as 10−7LMW, they inhabit the lowest mass dark matter halos known to host stars and are presently the most direct tracers of the distribution, mass
Beth Willman
doaj   +1 more source

Home - About - Disclaimer - Privacy