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相关论文: Our changing view of the blue compact dwarf NGC 29…

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The nearby blue compact dwarf, NGC 2915, has its stellar disc embedded in a large, extended (~ 22 B-band scale-lengths) HI disc. New high-resolution HI synthesis observations of NGC 2915 have been obtained with the Australia Telescope…

宇宙学与河外天体物理 · 物理学 2015-05-27 E. C. Elson , W. J. G. de Blok , R. C. Kraan-Korteweg

NGC 2915 is a nearby blue compact dwarf with the HI properties of a late-type spiral. Its large, rotating HI disk (extending out to R ~ 22 B-band scale lengths) and apparent lack of stars in the outer HI disk make it a useful candidate for…

宇宙学与河外天体物理 · 物理学 2015-05-18 E. C. Elson , W. J. G. de Blok , R. C. Kraan-Korteweg

NGC 2915 is a nearby blue compact dwarf with a differentially rotating HI disc extending out to ~ 5 R-band R_{25} radii. This disc serves as an ideal tracer of the system's gravitational potential in regions of the galaxy that are dominated…

宇宙学与河外天体物理 · 物理学 2015-05-19 E. C. Elson , W. J. G. de Blok , R. C. Kraan-Korteweg

NGC 2915 is a remarkable blue compact dwarf galaxy which contains an inner HI bar and strong spiral structure in its HI disk extending well beyond its optical disk. We propose here that NGC 2915 has a dark or faint (not yet observed)…

天体物理学 · 物理学 2007-05-23 A. C. Quillen

NGC 2915 is a unique nearby galaxy that is classified as an isolated blue compact dwarf based on its optical appearance but has an extremely extended H i gas disk with prominent Sd-type spiral arms. To unveil the starburst-triggering…

星系天体物理 · 物理学 2022-12-23 Yimeng Tang , Bojun Tao , Hong-Xin Zhang , Guangwen Chen , Yulong Gao , Zesen Lin , Yao Yao , Yong Shi , Xu Kong

We present new multi-configuration HI aperture synthesis imaging of the nearby dwarf starburst galaxy NGC 625 obtained with the Australia Telescope Compact Array. Total HI column density images show gas well-aligned with the optical major…

天体物理学 · 物理学 2009-11-10 John M. Cannon , N. M. McClure-Griffiths , Evan D. Skillman , Stephanie Cote

Crucial to a quantitative understanding of galaxy evolution are the properties of the inter-stellar medium that regulate galactic-scale star formation activity. We present here the results of a suite of star formation models applied to the…

宇宙学与河外天体物理 · 物理学 2015-05-30 E C Elson , W J G de Blok , R C Kraan-Korteweg

Abridged abstract: We present HI synthesis observations of the weak blue compact dwarf (BCD) galaxy NGC~2915. NGC~2915 has the HI properties of a late type spiral galaxy (Sd - Sm), including a double horn global profile, and HI spiral arms.…

天体物理学 · 物理学 2009-10-28 G. R. Meurer , C. Carignan , S. Beaulieu , K. C. Freeman

Australia Telescope Compact Array HI-line observations of the nearby dwarf galaxy NGC 1705 are presented. The data are used to trace the gravitational potential of the galaxy out to several stellar disc scale lengths. A rotation curve is…

宇宙学与河外天体物理 · 物理学 2013-01-15 E. C. Elson , W. J. G. de Blok , R. C. Kraan-Korteweg

NGC 2915 is a blue compact dwarf galaxy embedded in an extended, low surface brightness HI disk exhibiting a two-armed spiral structure and a central bar-like component. Commonly accepted mechanisms are unable to explain the existence of…

天体物理学 · 物理学 2009-11-07 F. S. Masset , M. Bureau

(abridged) Here we present HI line and 20-cm radio continuum data of the nearby galaxy pair NGC1512/1510 as obtained with the Australia Telescope Compact Array. These are complemented by GALEX UV-, SINGG Halpha- and Spitzer mid-infrared…

宇宙学与河外天体物理 · 物理学 2015-05-14 Baerbel S. Koribalski , Angel R. Lopez-Sanchez

We present new atomic hydrogen (HI) observations of the collisional ring galaxy NGC 922 obtained using the Australia Telescope Compact Array. Our observations reveal for the first time the vast extent of the HI disc of this galaxy. The HI…

The Fornax cluster galaxy FCC 35 shows an unusual multiply-peaked integrated HI profile (Bureau, Mould & Staveley-Smith 1996). We have now observed FCC 35 with the Australia Telescope Compact Array (ATCA) and have found a compact HI source…

天体物理学 · 物理学 2007-05-23 M. E. Putman , M. Bureau , J. R. Mould , L. Staveley-Smith , K. C. Freeman

We present 21cm HI line observations of the blue compact dwarf galaxy NGC1705. Previous optical observations show a strong outflow powered by an ongoing starburst dominating the HII morphology and kinematics. In contrast, most of the HI…

天体物理学 · 物理学 2015-06-24 Gerhardt R. Meurer , Lister Staveley-Smith , N. E. B. Killeen

(Abridged) Low-luminosity, active star-forming blue compact galaxies (BCGs) are excellent laboratories for investigating the process of star formation on galactic scales and probing the interplay between massive stars and the surrounding…

星系天体物理 · 物理学 2020-02-19 L. M. Cairós , J. N. González-Pérez

We probe the HI properties and the gas environments of three early-type barred galaxies harbouring counter-rotating ionized gas, NGC 128, NGC 3203 and NGC 7332. Each system has one or more optically-identified galaxy, at a similar or as yet…

宇宙学与河外天体物理 · 物理学 2015-06-04 Aeree Chung , Martin Bureau , J. H. van Gorkom , Baerbel Koribalski

We present Arecibo 21 cm spectroscopy, Keck HIRES Hb spectroscopy, and WIYN R-band images of 11 nearby blue compact galaxies selected to be similar to blue compact star-forming galaxies at intermediate redshifts (0.1<z<1). We detect HI in…

天体物理学 · 物理学 2009-11-06 D. J. Pisano , Henry A. Kobulnicky , Rafael Guzman , Jesus Gallego , Matthew A. Bershady , ;

We present new, sensitive HI observations of the Sculptor group galaxy NGC 55 with the Australia Telescope Compact Array. We achieve a 5 sigma HI column density sensitivity of 10^19 cm^-2 over a spectral channel width of 8 km/s for emission…

宇宙学与河外天体物理 · 物理学 2015-06-16 Tobias Westmeier , Bärbel S. Koribalski , Robert Braun

We present the results of high spatial resolution HI observations of five intrinsically compact dwarf galaxies which are currently experiencing a strong burst of star formation. The HI maps indicate that these systems have a complex and…

天体物理学 · 物理学 2009-10-30 L. van Zee , E. D. Skillman , J. J. Salzer

We have discovered three globular clusters beyond the Holmberg radius in Hubble Space Telescope Advanced Camera for Surveys images of the gas-rich dark matter dominated blue compact dwarf galaxy NGC2915. The clusters, all of which start to…

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