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Related papers: Clumpy Starburst in a Local Dwarf Galaxy, NGC 1522

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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…

Astrophysics of Galaxies · Physics 2022-12-23 Yimeng Tang , Bojun Tao , Hong-Xin Zhang , Guangwen Chen , Yulong Gao , Zesen Lin , Yao Yao , Yong Shi , Xu Kong

Interactions between pairs of isolated dwarf galaxies provide a critical window into low-mass hierarchical, gas-dominated galaxy assembly and the buildup of stellar mass in low-metallicity systems. We present the first VLT/MUSE optical IFU…

Astrophysics of Galaxies · Physics 2017-09-04 G. C. Privon , S. Stierwalt , D. R. Patton , G. Besla , S. Pearson , M. Putman , K. E. Johnson , N. Kallivayalil , S. Liss

We present the H-alpha flux measurements for 44 nearby dwarf galaxies, derived from the observations at the 6-m BTA telescope. H-alpha fluxes were used to determine the rate of integral star formation of galaxies, SFR. For the observed…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 S. S. Kaisin , I. D Karachentsev

The star-forming clumps in star-bursting dwarf galaxies provide valuable insights into the understanding of the evolution of dwarf galaxies. In this paper, we focus on five star-bursting dwarf galaxies featuring off-centered clumps in the…

Astrophysics of Galaxies · Physics 2023-11-28 Mengting Ju , Jun Yin , Lei Hao , Chenxu Liu , Chao-Wei Tsai , Junfeng Wang , Zhengyi Shao , Shuai Feng , Yu Rong

An unresolved question in galaxy evolution is whether the star formation histories of low mass systems are preferentially dominated by starbursts or modes that are more quiescent and continuous. Here, we quantify the prevalence of global…

Observations have suggested that galactic outflows contain substantial amounts of dense and clumpy molecular gas, creating favourable conditions for igniting star formation. Indeed, theoretical models and hydrodynamical simulations have…

IC 10 as a starburst dwarf galaxy in the Local Group (LG) has a large population of newly formed stars that are massive and intrinsically very bright in comparison with other LG galaxies. Using the Isaac Newton Telescope (INT) with the Wide…

Astrophysics of Galaxies · Physics 2023-06-12 Mahtab Gholami , Atefeh Javadi , Jacco Th. van Loon , Habib Khosroshahi , Elham Saremi

(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…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Baerbel S. Koribalski , Angel R. Lopez-Sanchez

Dusty star-forming galaxies emit most of their light at far-IR to mm wavelengths as their star formation is highly obscured. Far-IR and mm observations have revealed their dust, neutral and molecular gas properties. The sensitivity of JWST…

We present an integral field spectroscopic study of the central 2x2 kpc^2 of the blue compact dwarf galaxy Mrk 409, observed with the Potsdam MultiAperture Spectrophotometer. This study focuses on the morphology, two-dimensional chemical…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 L. M. Cairos , N. Caon , P. Papaderos , C. Kehrig , P. Weilbacher , M. M. Roth , C. Zurita

We analyse the cluster luminosity functions (CLFs) of the youngest star clusters in three galaxies exhibiting prominent circumnuclear starburst rings. We focus specifically on NGC 1512 and NGC 6951, for which we have access to H$\alpha$…

Astrophysics of Galaxies · Physics 2017-01-25 Richard de Grijs , Chao Ma , Siyao Jia , Luis C. Ho , Peter Anders

We have observed Halpha emission from a sample of 13 star-forming galaxies from the WiggleZ Dark Energy Survey in the redshift range z~1.2-1.5 and stellar mass range 9.8<log(M_*/M_sun)<11.6 with the integral field spectrograph OSIRIS on…

Cosmology and Nongalactic Astrophysics · Physics 2011-03-29 Emily Wisnioski , Karl Glazebrook , Chris Blake , The WiggleZ Team

(Abridged) Aims: By means of optical Integral Field Spectroscopy (IFS) observations, we aim to disentangle and characterize the starburst component in the BCD Mrk 1418. In particular we propose to study the stellar and ionized gas…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 L. M. Cairos , N. Caon , C. Zurita , C. Kehrig , P. Weilbacher , M. Roth

Abridged: The small-- and intermediate--scale structure and the fraction of the ISM ionized by non--radiative processes is investigated in a small sample of four local starburst galaxies, imaged with the HST WFPC2. The sample comprises…

There is increasing evidence for the presence of blue super star clusters in the central regions of ultraluminous infrared galaxies like Arp 220. Ultraluminous galaxies are thought to be triggered by galaxy mergers, and it has often been…

Astrophysics · Physics 2009-10-30 Yoshiaki Taniguchi , Neil Trentham , Yasuhiro Shioya

We present a quantitative star formation history of the nearby dwarf galaxy UGCA 92. This irregular dwarf is situated in the vicinity of the Local Group of galaxies in a zone of strong Galactic extinction (IC 342 group of galaxies). The…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Lidia Makarova , Dmitry Makarov , Sergey Savchenko

We study the response of the gaseous component of a galactic disc to the time dependent potential generated by N-body simulations of a spiral galaxy. The results show significant variation of the spiral structure of the gas which might be…

Astrophysics · Physics 2009-11-11 C. Clarke , D. Gittins

We used the near-IR imager/spectrograph LUCIFER mounted on the Large Binocular Telescope (LBT) to image, with sub-arcsec seeing, the local dwarf starburst NGC 1569 in the JHK bands and HeI 1.08 micron, [FeII] 1.64 micron and Brgamma…

Nearby metal-poor starburst dwarf galaxies present a unique opportunity to probe the physics of high-density star formation with a detail and sensitivity unmatched by any observation of the high-z Universe. Here we present the first results…

In this review I summarise recent advances in our understanding of the importance of starburst events to the evolutionary histories of nearby galaxies. Ongoing bursts are easily diagnosed in emission-line surveys, but assessing the timing…

Astrophysics of Galaxies · Physics 2015-05-14 Andrew A. Cole
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