Results 41 to 50 of about 445,447 (209)
The Astrophysical Journal Supplement SeriesWe present a sample of low H i mass ( M _H I
Cheng Cheng +6 more
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HII regions in dwarf irregular galaxies of the local group [PDF]
, 1990 Deep, narrowband H alpha Charge Coupled Device (CCD) surveys of HII regions were carried out in several dwarf irregular galaxies in and near the local group.
Lee, Myung Gyoon, Hodge, Paul
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The impact of accurate distances to dwarf elliptical galaxies on cosmology
, 2005 The Surface Brightness Fluctuation method has been shown to be a powerful distance indicator for dwarf elliptical galaxies to very low surface brightness levels.
Jerjen, Helmut
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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 ...
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WILLMAN 1—A PROBABLE DWARF GALAXY WITH AN IRREGULAR KINEMATIC DISTRIBUTION [PDF]
The Astronomical Journal, 2011 AJ accepted version. The primary improvements are a detailed investigation of the membership probability (Section 3.4 and new Figures 6, 7 and 8) and the revised spectroscopic [Fe/H] and [Ca/Fe] measurements of the two brightest member stars.
Willman, Beth +7 more
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Surface photometry of dwarf irregular galaxies in different environments [PDF]
, 2013 We present surface photometry and determination of structural parameters for 93 dwarf irregular (dIrr) galaxies located in different environments at distances ≤50 Mpc. This work was carried out using SDSS images.
Sharina M., Il'ina E.
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A Luminous X-Ray Active Galactic Nucleus in the Dwarf–Dwarf Galaxy Merger RGG 66
The Astrophysical JournalWe present the discovery of a luminous X-ray active galactic nucleus (AGN) in the dwarf galaxy merger RGG 66. The black hole is predicted to have a mass of M _BH ∼ 10 ^5.4 M _⊙ and to be radiating close to its Eddington limit ( L _bol / L _Edd ∼ 0.75 ...
Seth J. Kimbrell, Amy E. Reines
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Astronomy & AstrophysicsContext. The impact of extremely low-density environments such as the diffuse intergalactic medium (IGM) on the neutral gas distribution of dwarf galaxies remains poorly explored observationally. Aims.
Namumba Brenda +14 more
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Stellar Populations and the Star Formation Histories of LSB Galaxies—Part I: Optical and Hα Imaging
Advances in Astronomy, 2011 This paper presents optical and Hα imaging for a large sample of LSB galaxies selected from the PSS-II catalogs (Schombert et al., 1992).
James Schombert +2 more
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Coevolution of Dust and Chemistry in Galaxy Simulations with a Resolved Interstellar Medium
The Astrophysical Journal, 2023 Nearby dwarf irregular galaxies are ideal laboratories for studying the interstellar medium (ISM) at low metallicity, which is expected to be common for galaxies at very high redshift being observed by JWST. We present the first high-resolution (∼0.2 pc)
Chia-Yu Hu +2 more
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