Results 21 to 30 of about 445,447 (209)
A turbulence study in Dwarf Irregular galaxies [PDF]
Proceedings 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
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Long Period Variables in Local Group Dwarf Galaxies [PDF]
, 2006 In this work the results are presented of an extensive search for Long Period Variables stars (LPVs) in a sample of Local Group irregular dwarf galaxies.
Snigula, Jan, Snigula, J.
core +1 more source
Kinematics of the dwarf irregular galaxy GR8 [PDF]
Astronomy & 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
Accretion phenomena in nearby star-forming dwarf galaxies [PDF]
, 2016 We present two pilot studies for the search and characterization of accretion events in star-forming dwarf galaxies. Our strategy consists of two complementary approaches: i) the direct search for stellar substructures around dwarf galaxies through ...
A. Aloisi +34 more
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First Stellar Abundances in the Dwarf Irregular Galaxy Sextans A [PDF]
The Astronomical Journal, 2004 We present the abundance analyses of three isolated A-type supergiant stars in the dwarf irregular galaxy Sextans A from high-resolution spectra the UVES spectrograph at the VLT. Detailed model atmosphere analyses have been used to determine the stellar atmospheric parameters and the elemental abundances of the stars.
Kaufer, A +4 more
openaire +3 more sources
The star formation history of the Sculptor dwarf irregular galaxy [PDF]
Astronomy & Astrophysics, 2012 A&A accepted; 10 pages, 9 ...
Lianou, Sophia, Cole, Andrew A.
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MASS-TO-LIGHT VERSUS COLOR RELATIONS FOR DWARF IRREGULAR GALAXIES [PDF]
, 2016 We have determined new relations between UBV colors and mass-to-light ratios (M/L) for dwarf irregular (dIrr) galaxies, as well as for transformed g' - r'.
Elmegreen, Bruce G. +3 more
core +1 more source
AT 2017fvz: a nova in the dwarf irregular galaxy NGC 6822 [PDF]
Monthly Notices of the Royal Astronomical Society, 2019 ABSTRACT A transient in the Local Group dwarf irregular galaxy NGC 6822 (Barnard’s Galaxy) was discovered on 2017 August 2 and is only the second classical nova discovered in that galaxy. We conducted optical, near-ultraviolet, and X-ray follow-up observations of the eruption, the results of which we present here.
W Zheng +9 more
openaire +4 more sources
The Sagittarius dwarf irregular galaxy: Metallicity and stellar populations [PDF]
Astronomy & Astrophysics, 2002 10 pages, 7 figures, accepted A& ...
Momany, Y. +3 more
openaire +2 more sources
Oxygen abundances in dwarf irregular galaxies and the metallicity-luminosity relationship
, 2001 The low-luminosity dwarf irregular galaxies are considered.
L. S. Pilyugin
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