Results 121 to 130 of about 386,306 (225)

The Westerbork HI survey of spiral and irregular galaxies - I. HI imaging of late-type dwarf galaxies

, 2002
Neutral hydrogen observations with the Westerbork Synthesis Radio Telescope are presented for a sample of 73 late-type dwarf galaxies. These observations are part of the WHISP project (Westerbork Hi Survey of Spiral and Irregular Galaxies).
J. M. van der Hulst, Van Albada, TS, van der Hulst, JM, Swaters, R A, Swaters, RA, R. A. Swaters, R. Sancisi, Sancisi, R, Van Albada, T S, van der Hulst, J M ; id_orcid, T. S. van Albada   +10 more
core   +1 more source

Ultradeep Imaging of Nearby Dwarf Irregular Galaxies: Stellar Haloes and Disk Structure

The Astronomical Journal
We have examined the stellar structure of 10 nearby, low stellar mass (10 ^6 –6 × 10 ^7 M _⊙ ) dwarf irregular galaxies by fitting ellipses as a function of surface brightness on ultradeep V images. These are compared to far-ultraviolet images as tracers
Deidre A. Hunter, Bruce G. Elmegreen
doaj   +1 more source

WLM: Dynamics of an isolated dwarf irregular galaxy under ram pressure in the Local Group

Astronomy & Astrophysics
The Wolf–Lundmark–Melotte (WLM) galaxy is an archetypal dwarf irregular galaxy that has not experienced interactions with major Local Group galaxies within the past 8 Gyr.
Kolhe Neel, Hammer Francois, Yang Yanbin, Namumba Brenda, Chemin Laurent, Amram Philippe, Ianjamasimanana Roger, Carignan Claude   +7 more
doaj   +1 more source

Extended Schmidt law holds for faint dwarf irregular galaxies

, 2017
Context. The extended Schmidt law (ESL) is a variant of the Schmidt which relates the surface densities of gas and star formation, with the surface density of stellar mass added as an extra parameter.
Sambit Roychowdhury, Jayaram N. Chengalur, Yong Shi   +2 more
core   +1 more source

The Hubble Arp Galaxy Survey

The Astrophysical Journal Supplement Series
The typical galaxy in the local Universe is expected to be in a self-regulated quasi-equilibrium, displaying a settled morphology that falls within the Hubble sequence.
Julianne J. Dalcanton, Meredith J. Durbin, Benjamin F. Williams   +2 more
doaj   +1 more source

Discussion on Irregular Galaxies [PDF]

Symposium - International Astronomical Union, 1978
openaire   +1 more source

The inclination of the dwarf irregular galaxy Holmberg II

, 2014
We provide constraints on the inclination angle of the H\,{\sc i} disk of the dwarf irregular galaxy Holmberg II (Ho II) from stability analysis of the outer gaseous disk. We point out that a mean inclination angle of 27 degrees and thus a flat circular velocity of ~60 km/s, is required to have a level of gravitational stability similar to that found ...
F. J. Sánchez-Salcedo, A. M. Hidalgo-Gámez, Eric E. Martínez-García   +2 more
openaire   +3 more sources

Workshop on the Magellanic Clouds and other Dwarf Galaxies [PDF]

, 1998
The Workshop 'The Magellanic Clouds and Other Dwarf Galaxies' was held at the Physikzentrum Bad Honnef in January 1998. The proceedings comprise 79 contributions.
Richtler, T, Braun, J M
core  

Pervasive Cavity-rim Structure for Star Formation in Dwarf Irregular Galaxies

The Astrophysical Journal
Unsharp-mask images of H I emission from 36 dwarf irregular (dIrr) galaxies illustrate star formation in dispersed clouds and on the rims of large cavities. The cavities can extend for a radial scale length and typically have circular or slightly sheared
Bruce G. Elmegreen, Deidre A. Hunter
doaj   +1 more source

Strange and Odd Morphology Extragalactic Radio Sources (STROMERSs): A Faint Images of the Radio Sky at Twenty-Centimeters (FIRST) Look at the Strange and Odd Radio Sources

Universe
We report the identification of an extremely rare and peculiar set of irregular radio sources, termed “STROMERSs” (STRange and Odd Morphology Extragalactic Radio Sources).ingThe irregular radio sources with very anomalous morphologies that make them ...
Soumen Kumar Bera, Tapan K. Sasmal, Soumen Mondal, Taotao Fang, Xuelei Chen   +4 more
doaj   +1 more source