Gas inflow and metallicity drops in star-forming galaxies

D Ceverino, JS Almeida, CM Tuñón… - Monthly Notices of …, 2016 - academic.oup.com
Gas inflow feeds galaxies with low-metallicity gas from the cosmic web, sustaining star
formation across the Hubble time. We make a connection between these inflows and …

Localized starbursts in dwarf galaxies produced by the impact of low-metallicity cosmic gas clouds

JS Almeida, BG Elmegreen… - The Astrophysical …, 2015 - iopscience.iop.org
Models of galaxy formation predict that gas accretion from the cosmic web is a primary driver
of star formation over cosmic history. Except in very dense environments where galaxy …

Uncovering blue diffuse dwarf galaxies

BL James, S Koposov, DP Stark… - Monthly Notices of …, 2015 - academic.oup.com
Extremely metal poor (XMP) galaxies are known to be very rare, despite the large numbers
of low-mass galaxies predicted by the local galaxy luminosity function. This paper presents a …

The bursty star formation history of the Fornax dwarf spheroidal galaxy revealed with the HST

V Rusakov, M Monelli, C Gallart, TK Fritz… - Monthly Notices of …, 2021 - academic.oup.com
We present a new derivation of the star formation history (SFH) of the dSph galaxy Fornax in
two central regions, characterized by unprecedented precision and age resolution. It reveals …

Void galaxies follow a distinct evolutionary path in the Environmental COntext Catalog

J Florez, AA Berlind, SJ Kannappan… - The Astrophysical …, 2021 - iopscience.iop.org
We measure the environmental dependence, where environment is defined by the distance
to the third nearest neighbor, of multiple galaxy properties inside the Environmental COntext …

Dark influences-II. Gas and star formation in minor mergers of dwarf galaxies with dark satellites

TK Starkenburg, A Helmi, LV Sales - Astronomy & Astrophysics, 2016 - aanda.org
Context. It has been proposed that mergers induce starbursts and lead to important
morphological changes in galaxies. Most studies so far have focused on large galaxies, but …

The blue compact dwarf galaxy vcc 848 formed by dwarf–dwarf merging: H i gas, star formation, and numerical simulations

HX Zhang, R Smith, SH Oh, S Paudel… - The Astrophysical …, 2020 - iopscience.iop.org
A clear link between a dwarf–dwarf merger event and enhanced star formation (SF) in the
recent past was recently identified in the gas-dominated merger remnant VCC 848, offering …

Star formation in the outskirts of DDO 154: a top-light IMF in a nearly dormant disc

AB Watts, GR Meurer, CDP Lagos… - Monthly Notices of …, 2018 - academic.oup.com
We present optical photometry of Hubble Space Telescope (HST) Advanced Camera for
Surveys (ACS)/Wide Field Camera (WFC) data of the resolved stellar populations in the …

Detecting metal-poor gas accretion in the star-forming dwarf galaxies UM 461 and Mrk 600

P Lagos, TC Scott, A Nigoche-Netro… - Monthly Notices of …, 2018 - academic.oup.com
Abstract Using VIsible MultiObject Spectrograph (VIMOS)-integral field unit (IFU)
observations, we study the interstellar medium (ISM) of two star-forming dwarf galaxies, UM …

ALMA observations toward the starburst dwarf galaxy NGC 5253. I. Molecular cloud properties and scaling relations

RE Miura, D Espada, A Hirota… - The Astrophysical …, 2018 - iopscience.iop.org
We present high-spatial-resolution (∼ 0 farcs 2, or∼ 3 pc) CO (2–1) observations of the
nearest young starburst dwarf galaxy, NGC 5253, taken with the Atacama Large Millimeter …