Results 91 to 100 of about 36,487 (213)

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

Galaxy Evolution in Local Group Analogs. I. A GALEX study of nearby groups

, 2009
Understanding the astrophysical processes acting within galaxy groups and their effects on the evolution of the galaxy population is one of the crucial topic of modern cosmology, as almost 60% of galaxies in the Local Universe are found in groups.
Bettoni, D., Bianchi, L., Buson, L. M., Marino, A., Rampazzo, R.   +4 more
core   +1 more source

Physical Conditions in the Dwarf Local Group Irregular Galaxy IC10. I- Diffuse Ionized Gas

, 2005
A detailed analysis on the physical conditions of the Interstellar Medium in the main body of the Local Group dwarf irregular galaxy IC 10 is carried out using long-slit spectroscopy.
A. M. Hidalgo-Gámez, Borissova, Brocklehurst, Crowther, Dopita, Dopita, Dömgonge, Gallagher, Garlaza, Greenawalt, Haffner, Hamann, Hidalgo-Gámez, Hodge, Hoppes, Hunter, Martin, Martin, Massey, Mathis, McGaugh, Miller, Otte, Phillips, Rand, Reynolds, Richer, Sakai, Savage, Schuster, Searle, Shostak, Stasinska, Sutherland, Torres-Peimbert, Tüllmann, Wilcots   +36 more
core   +1 more source

Molecular Clouds in Dwarf Irregular Galaxies [PDF]

Highlights of Astronomy, 1989
The study of molecular clouds in dwarf galaxies was, until recently, an arduous task and provided detections in only a handful of sources (see Thronson and Bally 1986; Wiklind et al. 1986; Tacconi and Young 1987; Arnoult et al. 1988). Line strengths observed in CO were small (<100mK) and measurements were confined to one position per source, thus ...
openaire   +1 more source

The Local Group Census: planetary nebulae in Sextans B

, 2002
Five planetary nebulae (PNe) have been discovered in the nearby dwarf irregular galaxy. Emission line images were obtained using the Wide Field Camera of the 2.5m Isaac Newton Telescope (INT) at La Palma (Spain).
A. A. Zijlstra, Ciardullo, Courteau, D. J. Lennon, D. L. Pollacco, Danziger, Dudziak, Hunter, Hunter, J. R. Walsh, Jacoby, Jacoby, Jacoby, L. Magrini, Lilly, M. Perinotto, Madau, Magrini, Magrini, Mendez, Minniti, Moles, N. A. Walton, Oke, R. Greimel, R. L. M. Corradi, Roye, Sakai, Seaton, Strobel, Tosi, Walsh, Zijlstra, Zijlstra   +33 more
core   +1 more source

A γ-Ray-emitting Collisional Ring Galaxy System in Our Galactic Neighborhood

The Astrophysical Journal Letters
The astrophysical γ -ray photons carry the signatures of the violent phenomena happening on various astronomical scales in our Universe. This includes supernova remnants, pulsars, and pulsar wind nebulae in the Galactic environment and extragalactic ...
Vaidehi S. Paliya, D. J. Saikia
doaj   +1 more source

High Resolution WFPC2 Imaging of IRAS 09104+4109 [PDF]

, 1999
With a infrared luminosity of nearly 10^13 Lsuns, IRAS 09104+4109 is the most luminous galaxy with ...
Armus, L., Neugebauer, G., Soifer, B. T.
core   +1 more source

IUE spectra of clumpy irregular galaxies⋆ [PDF]

Monthly Notices of the Royal Astronomical Society, 1982
BENVENUTI, PIERO, C. Casini, J. Heidmann
openaire   +3 more sources

THE CHEMISTRY OF IRREGULAR GALAXIES

, 1995
8 pages with figures, uuencoded, compressed PostScript file; invited talk at the 5th Texas-Mexico Conference on Astrophysics, Tequesquitengo, Mexico, 3-5 April 1995; to appear in Rev. Mex. Astron.
openaire   +2 more sources

Galaxy Morphological Classification with Zernike Moments and Machine Learning Approaches

The Astrophysical Journal Supplement Series
Classifying galaxies is an essential step for studying their structures and dynamics. Using GalaxyZoo2 (GZ2) fractions thresholds, we collect 545 and 11,735 samples in nongalaxy and galaxy classes, respectively.
Hamed Ghaderi, Nasibe Alipour, Hossein Safari   +2 more
doaj   +1 more source