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We describe a compact cluster of massive red galaxies at z=1.51 discovered in one of the Gemini Deep Deep Survey (GDDS) fields. Deep imaging with the Near Infrared Camera and Multi Object Spectrometer (NICMOS) on the Hubble Space Telescope…

Optical red spectra of a set of 18 bright barred spiral galaxies are presented. The study is aimed at determining the local kinematics, and the physical conditions of ionized gas in the compact nucleus (inside a diameter of 5") and in the…

Astrophysics · Physics 2007-05-23 J. A. Garcia-Barreto , H. Aceves , O. Kuhn , G. Canalizo , R. Carrillo , J. Franco

Green pea galaxies are starbursting, low-mass galaxies that are good analogues to star-forming galaxies in the early universe. We perform a survey of 23 Green Peas using the MUSE Integral Field Unit spectrograph on the VLT to search for…

Astrophysics of Galaxies · Physics 2022-11-30 Lauren Laufman , Claudia Scarlata , Matthew Hayes , Evan Skillman

Green Pea galaxies are remarkable for their intense star formation and serve as a window into the early universe. In our study, we used integral field spectroscopy to examine 24 of these galaxies in the optical spectrum. We focused on the…

Green pea galaxies are a special class of star-forming compact galaxies with strong [O III]{\lambda}5007 and considered as analogs of high-redshift Ly{\alpha}-emitting galaxies and potential sources for cosmic reionization. In this paper,…

Astrophysics of Galaxies · Physics 2023-09-01 Weiyu Ding , Hu Zou , Xu Kong , Yulong Gao , Fujia Li , Hongxin Zhang , Jiali Wang , Jie Song , Jipeng Sui , Jundan Nie , Suijian Xue , Weijian Guo , Yao Yao , Zhimin Zhou

We present a spectroscopic study of 51 compact field galaxies with redshifts z < 1.4 and apparent magnitudes I < 23.74 in the flanking fields of the Hubble Deep Field. These galaxies are compact in the sense that they have small apparent…

In this paper we study a key phase in the formation of massive galaxies: the transition of star forming galaxies into massive (M_stars~10^11 Msun), compact (r_e~1 kpc) quiescent galaxies, which takes place from z~3 to z~1.5. We use HST…

We have used the Arecibo Telescope and the Green Bank Telescope to carry out a deep search for H{\sc i}~21\,cm emission from a large sample of Green Pea galaxies, yielding 19 detections, and 21 upper limits on the H{\sc i} mass. We obtain…

Astrophysics of Galaxies · Physics 2021-05-28 N. Kanekar , T. Ghosh , J. Rhoads , S. Malhotra , S. Harish , J. N. Chengalur , K. M. Jones

We analyse a sample of 8 highly magnified galaxies at redshift 0.6<z<1.5 observed with MUSE, exploring the resolved properties of these galaxies at sub-kiloparsec scales. Combining multi-band HST photometry and MUSE spectra, we derive the…

We report on kinematic observations of Ha emission line from four late-type galaxies of Hickson Compact Group 16 (H16a,b,c and d) obtained with a scanning Fabry-Perot interferometer and samplings of 16 km/s and 1". The velocity fields show…

We present the morphological properties of 109 H\alpha-selected galaxies at z>2 in SXDF-UDS-CANDELS field. With high-resolution optical/near-infrared images obtained by Hubble Space Telescope, we identify giant clumps within the H\alpha…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Ken-ichi Tadaki , Tadayuki Kodama , Ichi Tanaka , Masao Hayashi , Yusei Koyama , Rhythm Shimakawa

To understand the processes that build up galaxies we investigate the stellar structure and gas kinematics of spiral and irregular galaxies out to redshift 1. We target 92 galaxies in four cluster (z = 0.3 & 0.5) fields to study the…

Cosmology and Nongalactic Astrophysics · Physics 2009-09-17 Bodo L. Ziegler , Elif Kutdemir , Cristiano Da Rocha , Asmus Böhm , Reynier F. Peletier , Miguel Verdugo

Green Peas (GPs) and blueberry galaxies (BBs) are thought to be local analogs ($z<$0.1) of high redshift Ly$\alpha$ emitters. H I study of these can help us understand the star formation in the primordial Universe. In this Letter, we…

Astrophysics of Galaxies · Physics 2024-11-21 Yogesh Chandola , Chao-Wei Tsai , D. J. Saikia , Guodong Li , Di Li , Yin-Zhe Ma

We use new HST images of nine Green Pea Galaxies (GPGs) to study their resolved structure and color. The choice of filters, F555W and F850LP, together with the redshift of the galaxies ($z\sim 0.25$), minimizes the contribution of the…

Star formation occurs on physical scales corresponding to individual star forming regions, typically of order ~100 parsecs in size, but current observational facilities cannot resolve these scales within field galaxies beyond the local…

Astrophysics of Galaxies · Physics 2015-06-22 Matthew B. Bayliss , Jane R. Rigby , Keren Sharon , Michael D. Gladders , Eva Wuyts

In a recent work, a large sample of double-peak (DP) emission line galaxies have been identified from the SDSS. While the two peaks could represent two kinematic components, they may be linked to the large bulges which their host galaxies…

We investigate the ionised gas kinematics, physical properties and chemical abundances of SDSS$J$142947, a Green Pea galaxy at redshift z$\sim$0.17 with strong, double-peak Ly$\alpha$ emission and indirect evidence of Lyman continuum (LyC)…

Astrophysics of Galaxies · Physics 2020-04-08 L. Hogarth , R. Amorín , J. M. Vílchez , G. F. Hägele , M. Cardaci , E. Pérez-Montero , V. Firpo , A. Jaskot , R. Chávez

We analyze rest-frame optical morphologies and gas-phase kinematics as traced by rest-frame far-UV and optical spectra for a sample of 204 star forming galaxies in the redshift range z ~ 2-3 drawn from the Keck Baryonic Structure Survey…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 David R. Law , Charles C. Steidel , Alice E. Shapley , Sarah R. Nagy , Naveen A. Reddy , Dawn K. Erb