Results 31 to 40 of about 722,598 (307)

Catching Tidal Dwarf Galaxies at a Later Evolutionary Stage with ALFALFA

The Astronomical Journal, 2023
We present deep optical imaging and photometry of four objects classified as “Almost-Dark” galaxies in the Arecibo Legacy Fast Arecibo L-band Feed Array (ALFALFA) survey because of their gas-rich nature and extremely faint or missing optical emission in ...
Laurin M. Gray, Katherine L. Rhode, Lukas Leisman, Pavel E. Mancera Piña, John M. Cannon, John J. Salzer, Lexi Gault, Jackson Fuson, Gyula I. G. Józsa, Elizabeth A. K. Adams, Nicholas J. Smith, Martha P. Haynes, Steven Janowiecki, Hannah J. Pagel   +13 more
doaj   +1 more source

A genome‐wide phylogeny and the diversification of genus Liriomyza (Diptera: Agromyzidae) inferred from anchored phylogenomics

Systematic Entomology, Volume 48, Issue 1, Page 178-197, January 2023., 2023
Phylogenetic relationships are reconstructed among the Liriomyza leafminers using phylogenomic analysis of nuclear gene loci obtained by anchored hybrid enrichment (AHE). Trees inferred using multiple data types and analysis methods are congruent and individual clade support confirms morphological species groups and relationships among them.
Jing‐Li Xuan, Sonja J. Scheffer, Owen Lonsdale, Brian K. Cassel, Matthew L. Lewis, Charles S. Eiseman, Wan‐Xue Liu, Brian M. Wiegmann   +7 more
wiley   +1 more source

Luminous AGB variables in the dwarf irregular galaxy, NGC 3109 [PDF]

Monthly notices of the Royal Astronomical Society, 2018
In a shallow near-infrared survey of the dwarf Irregular galaxy, NGC 3109, near the periphery of the Local Group, we have found eight Mira variables, seven of which appear to be oxygen-rich (O-Miras).
J. Menzies, P. Whitelock, M. Feast, N. Matsunaga   +3 more
semanticscholar   +1 more source

Exploring the making of a galactic wind in the starbursting dwarf irregular galaxy IC 10 with LOFAR [PDF]

, 2018
Low-mass galaxies are subject to strong galactic outflows, in which cosmic rays may play an important role; they can be best traced with low-frequency radio continuum observations, which are less affected by spectral ageing.
V. Heesen, D. Rafferty, A. Horneffer, R. Beck, A. Basu, J. Westcott, L. Hindson, E. Brinks, K. Chy.zy, A. Scaife, M. Bruggen, G. Heald, A. Fletcher, C. Horellou, F. Tabatabaei, R. Paladino, B. Nikiel-Wroczy'nski, M. Hoeft, R. Dettmar   +18 more
semanticscholar   +1 more source

Optical observations of the nearby galaxy NGC 2366 through narrowband Hα and [SII] filters. Supernova remnants status [PDF]

Serbian Astronomical Journal, 2019
We present detection of 64 H II regions, three superbubbles and two optical supernova remnant (SNR) candidates in the nearby irregular galaxy NGC 2366. The SNR candidates were detected by applying [S II]/Hα ratio criterion to observations made with the 2-
Vučetić M.M., Onić D., Petrov N., Ćiprijanović A., Pavlović M.Z.   +4 more
doaj   +1 more source

LBT/MODS spectroscopy of globular clusters in the irregular galaxy NGC 4449 [PDF]

, 2018
We present intermediate-resolution (R$\sim$1000) spectra in the $\sim$3500-10,000 A range of 14 globular clusters in the magellanic irregular galaxy NGC 4449 acquired with the Multi Object Double Spectrograph on the Large Binocular Telescope.
F. Annibali, E. Morandi, L. Watkins, M. Tosi, A. Aloisi, A. Buzzoni, F. Cusano, M. Fumana, A. Marchetti, M. Mignoli, A. Mucciarelli, D. Romano, R. Bologna, D. Astronomia, U. Bologna, Space Telescope Science Institute, I. D. F. Cosmica   +16 more
semanticscholar   +1 more source

Near-IR TRGB Distance to Nearby Dwarf Irregular Galaxy NGC 6822 [PDF]

Journal of Astronomy and Space Sciences, 2008
We report the distance modulus of nearby dwarf irregular galaxy NGC 6822 estimated from the so-called Tip of Red-giant Branch (TRGB) method. To detect the apparent magnitudes of the TRGB we use the color-magnitude diagrams (CMDs) and luminosity functions
Y.-J. Sohn, A. Kang, W, Han, J.-H. Park, H.-I. Kim, J.-W. Kim, I.-G. Shin, S.-H. Chun   +7 more
doaj   +1 more source

Near-IR TRGB Distance Modulus of Dwarf Irregular Galaxy IC 1613 [PDF]

Journal of Astronomy and Space Sciences, 2009
The JHKs magnitudes of the red giant branch tip (TRGB) and the distance moduli of the nearby dwarf irregular galaxy IC 1613 have been determined from the nearinfrared luminosity functions (LFs) of the resolved stars in the galaxy.
M. Y. Jung, S.-H. Chun, C.-R. Chang, M. Han, D. Lim, W. Han, Y.-J. Sohn   +6 more
doaj   +1 more source

Planetary Nebulae and H ii Regions in the Starburst Irregular Galaxy NGC 4449 from LBT MODS Data [PDF]

, 2017
We present deep 3500–10000 Å spectra of H ii regions and planetary nebulae (PNe) in the starburst irregular galaxy NGC 4449, acquired with the Multi Object Double Spectrograph at the Large Binocular Telescope.
F. Annibali, M. Tosi, D. Romano, A. Buzzoni, F. Cusano, M. Fumana, A. Marchetti, M.Mignoli, A. Pasquali, A. A. I. A. D. Bologna, I. D. F. Cosmica, Zentrum fur Astronomie der Universitat Heidelberg, Space Telescope Science Institute   +12 more
semanticscholar   +1 more source

THE OUTER DISKS OF DWARF IRREGULAR GALAXIES [PDF]

The Astronomical Journal, 2011
AJ, in ...
Deidre A. Hunter, Deidre A. Hunter, Deidre A. Hunter, Se-Heon Oh, Se-Heon Oh, Nick Wilsey, Nick Wilsey, Bruce G. Elmegreen, Philip Massey, Philip Massey, Tyler E. Nordgren, Malanka Riabokin, Malanka Riabokin, Ed Anderson, Ed Anderson   +14 more
openaire   +4 more sources