Results 91 to 100 of about 12,408 (264)

Spectral Energy Distributions for 258 Local Volume Galaxies

The Astronomical Journal, 2023
We present model spectral energy distribution (SED) fits to ultraviolet/optical/infrared observations for the 258 nearby galaxies in the Local Volume Legacy survey, a sample dominated by lower-luminosity dwarf irregular systems.
Daniel A. Dale, Médéric Boquien, Jordan A. Turner, Daniela Calzetti, Robert C. Kennicutt Jr., Janice C. Lee   +5 more
doaj   +1 more source

SAGAbg. I. A Near-unity Mass-loading Factor in Low-mass Galaxies via Their Low-redshift Evolution in Stellar Mass, Oxygen Abundance, and Star Formation Rate

The Astrophysical Journal
Measuring the relation between star formation and galactic winds is observationally difficult. In this work we make an indirect measurement of the mass-loading factor (the ratio between the mass outflow rate and star formation rate) in low-mass galaxies ...
Erin Kado-Fong, Marla Geha, Yao-Yuan Mao, Mithi A. C. de los Reyes, Risa H. Wechsler, Yasmeen Asali, Nitya Kallivayalil, Ethan O. Nadler, Erik J. Tollerud, Benjamin Weiner   +9 more
doaj   +1 more source

Searches for Extremely Metal-poor Galaxies Using Arecibo Legacy Fast ALFA–Selected Dwarf Galaxies

The Astrophysical Journal, 2023
We present a study of nearby dwarf galaxies selected from the Arecibo Legacy Fast ALFA (ALFALFA) blind H i survey. A primary goal of the project was to utilize a nonstandard selection method with the hope of detecting previously unrecognized extremely ...
John H. Miller Jr., John J. Salzer, Steven Janowiecki, Martha P. Haynes, Alec S. Hirschauer   +4 more
doaj   +1 more source

The Local Group dwarf irregular galaxy IC 1613 [PDF]

Astronomy and Astrophysics Supplement Series, 1999
Page 22, Sect. 3.1, you should read Table 1 instead of Table ?? Page 25, Sect. 3.3, you should read Table 3 instead of Table ?? Page 29, Sect. 5.1, you should read Table 3 instead of Table ??
L. Georgiev, J. Borissova, M. Rosado, R. Kurtev, G. Ivanov, G. Koenigsberger   +5 more
openaire   +1 more source

A Pressure Anomaly for HII Regions in Irregular Galaxies [PDF]

, 2000
The pressures of giant HII regions in 6 dwarf Irregular galaxies are a factor of ~10 larger than the average pressures of the corresponding galaxy disks, obtained from the stellar and gaseous column densities.
Becquaert J. F., Bottema R., Boulanger F., Broeils A., Bruce G. Elmegreen, Combes F., de Paolis F., de Paolis F., Deidre A. Hunter, Honma M., Kalberla P. M. W., Knapp G. R., Kuijken K., Lequeux J., Lequeux J., Loinard L., Olling R. P., Pfenniger D., Pfenniger D., Shostak G. S., Skillman E. D., Stavely-Smith L., van der Kruit P. C., van der Kruit P. C., van der Kruit P. C., Wilson T. L.   +25 more
core   +3 more sources

Empirical dependencies for irregular dwarf galaxies

Astronomical and Astrophysical Transactions
In this work, we search for empirical relationships for irregular dwarf galaxies using a collection of observational data published in the NASA and HyperLeda databases. Using a complex statistical analysis, we calculated correlation coefficients between various physical parameters of irregular dwarf galaxies.
Tillaboev, K., Tadjibaev, I., Otojanova, N.   +2 more
openaire   +2 more sources

Compact Star Clusters in Nearby Dwarf Irregular Galaxies [PDF]

The Astronomical Journal, 2002
Nearby dwarf irregular galaxies were searched for compact star clusters using data from the HST archives.
Billett, Olivia H., Hunter, Deidre A., Elmegreen, Bruce G.   +2 more
openaire   +2 more sources

The metallicity-luminosity relationship of dwarf irregular galaxies [PDF]

Astronomy & Astrophysics, 2003
The nature of a possible correlation between metallicity and luminosity for dwarf irregular galaxies, including those with the highest luminosities, has been explored using simple chemical evolutionary models. Our models depend on a set of free parameters in order to include infall and outflows of gas and covering a broad variety of physical situations.
A. M. Hidalgo-Gámez, F. J. Sánchez-Salcedo, K. Olofsson   +2 more
openaire   +1 more source

The evolution of the photometric properties of Local Group dwarf spheroidal galaxies

, 2008
We investigate the present-day photometric properties of the dwarf spheroidal galaxies in the Local Group. From the analysis of their integrated colours, we consider a possible link between dwarf spheroidals and giant ellipticals.
Annibali, Aparicio, Arimoto, Bonifacio, Bonifacio, Bower, Bradamante, Bruzual, Bullock, Calura, Calura, Calura, Calura, Calzetti, Calzetti, Calzetti, Carignan, Carignan, Carrera, Cescutti, Côté, Davies, Dekel, Dolphin, F. Calura, F. Matteucci, Fenner, Ferguson, François, Freedman, G. A. Lanfranchi, Gallagher, Gallagher, Geisler, Geisler, Grebel, Greggio, Hernandez, Hurley-Keller, Ikuta, Irwin, Karick, Kauffmann, Kawata, Koch, Koch, Kroupa, Kuhn, Kunth, Lanfranchi, Lanfranchi, Lanfranchi, Lanfranchi, Lanfranchi, Larson, Lin, Majewski, Mateo, Mateo, Matteucci, Matteucci, Matteucci, Matteucci, Matteucci, Mayer, Menci, Monaco, Moore, Mori, Muñoz, Nomoto, Papaderos, Phillipps, Recchi, Renzini, Ricotti, Rizzi, Sadakane, Salpeter, Sandage, Saro, Schmidt, Schulte-Ladbeck, Shapley, Shetrone, Shetrone, Skillman, Somerville, Tamura, Thielemann, Thomsen, Tinsley, Tolstoy, Tolstoy, van den Bergh, Van den Hoeck, Venn, Woosley, Zaritsky   +98 more
core   +1 more source

Ultradeep Imaging of Nearby Dwarf Irregular Galaxies: Young Objects in the Far Outer Disk

The Astronomical Journal
Ultradeep UBVI imaging of 10 nearby (≤7.8 Mpc) noninteracting dwarf irregular galaxies are used to examine their far outer stellar disks. The annulus between 26 mag arcsec ^−2 and 29 mag arcsec ^−2 in the V band is what we define as the far outer disk ...
Deidre A. Hunter, Hong-Xin Zhang, Bruce G. Elmegreen, Ella R. Castelloe, Hannah Michaye Ledford, Ishara Nisley, Ryuga Hatano   +6 more
doaj   +1 more source