Results 41 to 50 of about 611,346 (300)

THE STELLAR AND GAS KINEMATICS OF THE LITTLE THINGS DWARF IRREGULAR GALAXY NGC 1569 [PDF]

, 2012
In order to understand the formation and evolution of Magellanic-type dwarf irregular (dIm) galaxies, one needs to understand their three-dimensional structure.
Megan C. Johnson, D. Hunter, Se-Heon Oh, Hong-Xin Zhang, B. Elmegreen, E. Brinks, E. Tollerud, K. Herrmann   +7 more
semanticscholar   +1 more source

THE OUTER DISKS OF DWARF IRREGULAR GALAXIES [PDF]

The Astronomical Journal, 2011
AJ, in ...
Hunter, Deidre A., Elmegreen, Bruce G., Oh, Se-Heon, Anderson, Ed, Nordgren, Tyler E., Massey, Philip, Wilsey, Nick, Riabokin, Malanka   +7 more
openaire   +2 more sources

Distance and reddening of the Local Group dwarf irregular galaxy NGC 6822 [PDF]

, 2012
On the basis of a new photometric analysis of the Local Group dwarf irregular galaxy NCG 6822 based on observations obtained with the Advanced Camera for Surveys onboard the Hubble Space Telescope, we have obtained a new estimate of the extinction of two
F. Fusco, R. Buonanno, G. Bono, S. Cassisi, M. Monelli, A. Pietrinferni   +5 more
semanticscholar   +1 more source

The Classification of Galaxy Morphology in the H Band of the COSMOS-DASH Field: A Combination-based Machine-learning Clustering Model

The Astrophysical Journal Supplement Series, 2023
By applying our previously developed two-step scheme for galaxy morphology classification, we present a catalog of galaxy morphology for H -band-selected massive galaxies in the COSMOS-DASH field, which includes 17,292 galaxies with stellar mass M _ ...
Yao Dai, Jun Xu, Jie Song, Guanwen Fang, Chichun Zhou, Shuo Ba, Yizhou Gu, Zesen Lin, Xu Kong   +8 more
doaj   +1 more source

On the massive star content of the nearby dwarf irregular Wolf-Rayet galaxy IC 4662 [PDF]

, 2009
Aims. We investigate the massive stellar content of the nearby dwarf irregular Wolf-Rayet galaxy IC 4662, and consider its global star forming properties in the context of other metal-poor galaxies, the SMC, IC 10 and NGC 1569. Methods.
Borissova, Buckalew, Crowther, Crowther, Crowther, De Robertis, Fagotto, Fruchter, Garnett, Gregory, Grocholski, Hadfield, Hammer, Helmboldt, Heydari-Malayeri, Hidalgo-Gámez, Hilditch, Hillenbrand, Hummer, Hunter, Hunter, J. L. Bibby, Johnson, Karachentsev, Kennicutt, Kennicutt, Kennicutt, Kennicutt, Kennicutt, Kennicutt, Kobulnicky, Kroupa, Leitherer, Lonsdale Persson, Maoz, Massey, McQuinn, Meynet, Meynet, Modjaz, P. A. Crowther, Parker, Rauw, Relaño, Russell, Schaerer, Schaerer, Schlegel, Seaton, Sirianni, Tody, Vacca   +51 more
core   +3 more sources

Emission spectrum of ionized gas in the irregular galaxy Holmberg II [PDF]

, 2012
We study the ionized gas spectrum of star forming regions in the Holmberg II galaxy using the optical long-slit spectroscopic observations made at the 6-m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences (SAO RAS). We
O. Egorov, T. Lozinskaya, A. Moiseev
semanticscholar   +1 more source

Oxygen abundances in dwarf irregular galaxies and the metallicity - luminosity relationship [PDF]

, 2001
The low-luminosity dwarf irregular galaxies are considered. The oxygen abundances in HII regions of dwarf irregular galaxies were recalculated from published spectra through the recently suggested P - method. It has been found that the metallicity of low-
Pilyugin, L. S.
core   +2 more sources

The Star Formation Across Cosmic Time (SFACT) Survey. III. Spectroscopy of the Initial Catalog of Emission-line Objects

The Astronomical Journal, 2023
The Star Formation Across Cosmic Time (SFACT) survey is a new narrowband survey designed to detect emission-line galaxies (ELGs) and quasi-stellar objects (QSOs) over a wide range of redshifts in discrete redshift windows.
David J. Carr, Jennifer Sieben, John J. Salzer, Samantha W. Brunker, Bryce Cousins   +4 more
doaj   +1 more source

THE CLUSTER POPULATION OF THE IRREGULAR GALAXY NGC 4449 AS SEEN BY THE HUBBLE ADVANCED CAMERA FOR SURVEYS [PDF]

, 2011
We present a study of the star cluster population in the starburst irregular galaxy NGC 4449 based on B, V, I, and Hα images taken with the Advanced Camera for Surveys on the Hubble Space Telescope. We derive cluster properties such as size, ellipticity,
F. Annibali, M. Tosi, A. Aloisi, R. P. van der Marel   +3 more
semanticscholar   +1 more source

Automatic Detection of Galaxy Type From Datasets of Galaxies Image Based on Image Retrieval Approach

Scientific Reports, 2017
This paper presents a new approach for the automatic detection of galaxy morphology from datasets based on an image-retrieval approach. Currently, there are several classification methods proposed to detect galaxy types within an image.
Mohamed Abd El Aziz, I. M. Selim, Shengwu Xiong   +2 more
doaj   +1 more source