Results 21 to 30 of about 202 (183)

ON THE RADIAL EXTENT OF THE DWARF IRREGULAR GALAXY IC10 [PDF]

open access: yesThe Astrophysical Journal, 2010
7 pages, 4 figures, ApJ Letters ...
Sanna, N.   +18 more
openaire   +3 more sources

The CO contents of dwarf irregular galaxies

open access: yesThe Astrophysical Journal, 1987
A search has been conducted for CO in 16 dwarf irregular galaxies selected to span a wide range of infrared luminosity and color. CO was detected in six dwarf galaxies spanning the entire range in optical color and IR luminosity. The dwarf galaxies extend by three orders of magnitude in luminosity the correlation between IR and CO luminosities found ...
TACCONI, LJ, Young, JS
openaire   +2 more sources

Kinematics of the dwarf irregular galaxy GR8 [PDF]

open access: yesAstronomy & Astrophysics, 2003
We present deep, high velocity resolution (~1.6 km/s) Giant Meterwave Radio Telescope HI 21cm synthesis images for the faint (M_B ~ -12.1) dwarf irregular galaxy GR8. We find that the velocity field of the galaxy shows a clear systematic large scale pattern, with a maximum amplitude ~10 km/s.
Begum, Ayesha, Chengalur, Jayaram N.
openaire   +2 more sources

The fundamental plane of dwarf irregular galaxies [PDF]

open access: yesAstronomy & Astrophysics, 2008
Aims. Near-IR photometry of dwarf irregular galaxies (dIs) has been acquired to expand the sample of objects suitable for investigating the fundamental plane (FP) discovered previously by us. Data for blue compact dwarfs (BCDs), dwarf ellipticals (dEs), and dwarf spheroidal galaxies (dSphs) are amalgamated to evaluate how closely these classes of ...
O. Vaduvescu, M. L. McCall
openaire   +1 more source

Nuclear Activity in the Low-metallicity Dwarf Galaxy SDSS J0944-0038 : A Glimpse into the Primordial Universe

open access: yesThe Astrophysical Journal Letters, 2023
Local low-metallicity dwarf galaxies are relics of the early universe and are thought to hold clues into the origins of supermassive black holes. While recent studies are uncovering a growing population of active galactic nuclei (AGNs) in dwarf galaxies,
Michael Reefe   +13 more
doaj   +1 more source

Stellar Populations of Dwarf Irregular Galaxies [PDF]

open access: yesSymposium - International Astronomical Union, 1996
We recently completed two-color CCD photometry of resolved stars in 11 dwarf irregular galaxies (Hopp & Schulte-Ladbeck, 1995, A&AS 111, 527), selected because of their relative isolation from massive galaxies in the Kran-Korteweg – Tammann sample (1979, AN 300, 181).
R.E. Schulte-Ladbeck, Ulrich Hopp
openaire   +1 more source

The Isaac Newton Telescope Monitoring project: Stellar population in the IC 10 dwarf irregular galaxy [PDF]

open access: yesIranian Journal of Astronomy and Astrophysics, 2019
We have conducted an optical monitoring survey of IC 10 dwarf irregular galaxy in the Local Group, using the Isaac Newton Telescope (INT) with the wide-field camera (WFC), to identify the Asymptotic Giant Branch stars (AGBs).
Mahtab Gholami, Mohammad Taghi Mirtorabi
doaj   +1 more source

The Resilience of Habitable Climates Around Circumbinary Stars

open access: yesJournal of Geophysical Research: Planets, Volume 125, Issue 9, September 2020., 2020
Abstract Here we use a 3‐D climate system model to study the habitability of Earth‐like planets orbiting in circumbinary systems. In the most extreme cases, Earth‐like planets in circumbinary systems could experience variations in the incident stellar flux of up to ~50% on ~100‐day timescales.
Eric T. Wolf   +7 more
wiley   +1 more source

The Interstellar Medium of Dwarf Galaxies

open access: yesGalaxies, 2022
Dwarf galaxies are by far the most numerous galaxies in the Universe, showing properties that are quite different from those of their larger and more luminous cousins. This review focuses on the physical and chemical properties of the interstellar medium
Christian Henkel   +2 more
doaj   +1 more source

A turbulence study in Dwarf Irregular galaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2006
AbstractWe present preliminary results of a Fourier transform power spectra analysis carried out on a sample of dwarf irregular galaxies and Local Group members. This project is intended to study turbulence and the ISM structure in irregulars as a class.
Margarita Valdez-Gutiérrez   +1 more
openaire   +1 more source

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