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Dwarf highly star-forming galaxies (SFGs) dominated the early Universe and are considered the main driver of its reionization. However, direct observations of these distant galaxies are mainly confined to rest-frame ultraviolet and visible…

星系天体物理 · 物理学 2024-08-14 K. Kouroumpatzakis , J. Svoboda , A. Zezas , A. Borkar , E. Kyritsis , P. G. Boorman , C. Daoutis , B. Adamcová , R. Grossová

Context. Green Pea galaxies (GPs) are local starburst galaxies serving as analogues for high-redshift star-forming galaxies, particularly Lyman continuum leakers. It remains debated whether their starbursts are driven by internal secular…

Compact star-forming galaxies were dominant galaxy types in the early Universe. Blueberry galaxies (BBs) represent their local analogues being very compact and having intensive star formation. Motivated by high X-ray emission recently found…

Extreme emission-line galaxies, such as blue compact dwarfs (BCDs), Green Peas (GPs) and blueberries in the local Universe are the potential candidates to understand the nature of galaxies that re-ionized the early Universe. Being low-mass,…

星系天体物理 · 物理学 2022-04-20 Abhishek Paswan , Kanak Saha , Anshuman Borgohain , Claus Leitherer , Suraj Dhiwar

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…

星系天体物理 · 物理学 2024-11-21 Yogesh Chandola , Chao-Wei Tsai , D. J. Saikia , Guodong Li , Di Li , Yin-Zhe Ma

The main goal of this work is to investigate the influence of environment at different scales on the properties of galaxies in systems with a low number of members. To this end we used a catalogue of small galaxy systems comprising compact…

The numerous and massive young star clusters in blue compact galaxies (BCGs) are used to investigate the properties of their hosts. We test whether BCGs follow claimed relations between cluster populations and their hosts, such as the the…

宇宙学与河外天体物理 · 物理学 2015-05-28 Angela Adamo , Goeran Ostlin , Erik Zackrisson

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…

星系天体物理 · 物理学 2022-11-30 Lauren Laufman , Claudia Scarlata , Matthew Hayes , Evan Skillman

Green Peas (GPs) are young, compact, star-forming dwarf galaxies, and local (z~0.3) analogues of the early galaxies (z>6) considered to be mainly responsible for the reionisation of the Universe. Recent X-ray observations of GPs have…

We use integral field spectroscopy, from the SWIFT and Palm3K instruments, to perform a spatially-resolved spectroscopic analysis of four nearby highly star-forming `green pea' (GP) galaxies, that are likely analogues of star-forming…

星系天体物理 · 物理学 2017-08-23 Emma K. Lofthouse , Ryan C. W. Houghton , Sugata Kaviraj

Green Peas are a class of extreme star-forming galaxies at intermediate redshifts, originally discovered via color-selection using multi-filter, wide-field survey imaging data (Cardamone et al. 2009). They are commonly thought of as being…

星系天体物理 · 物理学 2020-08-05 Samantha W. Brunker , John J. Salzer , Steven Janowiecki , Rose A. Finn , George Helou

Using the Early Data Release of the Sloan Digital Sky Survey (SDSS) we investigated the clustering properties of Low Surface Brightness (LSB) galaxies in comparison to normal, High Surface Brightness (HSB) galaxies. We selected LSB galaxies…

天体物理学 · 物理学 2009-11-10 S. D. Rosenbaum , D. J. Bomans

Luminous Compact Blue Galaxies (LCBGs) are an extreme star-bursting population of galaxies that were far more common at earlier epochs than today. Based on spectroscopic and photometric measurements of LCBGs in massive (M >10^15 M_sun),…

星系天体物理 · 物理学 2016-01-27 S. M. Crawford , Gregory D. Wirth , M. A. Bershady , S. M. Randriamampandry

We present deep broad-band imaging and long-slit spectroscopy of three compact, low-mass starburst galaxies at redshift z\sim0.2-0.3, also referred to as Green Peas (GP). We measure physical properties of the ionized gas and derive…

宇宙学与河外天体物理 · 物理学 2015-06-04 Ricardo Amorín , E. Pérez-Montero , J. M. Vílchez , P. Papaderos

The formation and evolution of elliptical galaxies in low-density environments are less understood than classical elliptical galaxies in high-density environments. Isolated galaxies are defined as galaxies without massive neighbors within…

星系天体物理 · 物理学 2018-12-12 I. Lacerna , M. Argudo-Fernández , S. Duarte Puertas

We investigate the clustering properties and close neighbour counts for galaxies with different types of bulges and stellar masses. We select samples of "classical" and "pseudo" bulges, as well as "bulge-less" disk galaxies, based on the…

星系天体物理 · 物理学 2019-03-15 Lan Wang , Lixin Wang , Cheng Li , Jian Hu , Houjun Mo , Huiyuan Wang

Luminous compact blue galaxies (LCBGs) have enhanced star formation rates and compact morphologies. We combine Sloan Digital Sky Survey data with HI data of 29 LCBGs at redshift z~0 to understand their nature. We find that local LCBGs have…

星系天体物理 · 物理学 2015-07-15 C. A. Garland , D. J. Pisano , M. -M. Mac Low , K. Kreckel , K. Rabidoux , R. Guzmán

We investigate the environments and clustering properties of starburst galaxies selected from the 2dF Galaxy Redshift Survey (2dFGRS) in order to determine which, if any, environmental factors play a role in triggering a starburst. We…

天体物理学 · 物理学 2009-11-13 Matt Owers , Chris Blake , Warrick Couch , Mike Pracy , Kenji Bekki

Our understanding of radiative feedback and star formation in galaxies at high redshift is hindered by the rarity of similar systems at low redshift. However, the recently identified Green Pea (GP) galaxies are similar to high-redshift…

星系天体物理 · 物理学 2014-04-01 A. E. Jaskot , M. S. Oey

Deep images of 10 early-type galaxies in low-density environments have been obtained with the Advanced Camera for Surveys (ACS) on the Hubble Space Telescope. The global properties of the globular cluster (GC) systems of the galaxies have…

宇宙学与河外天体物理 · 物理学 2015-06-04 J. Cho , R. M. Sharples , J. P. Blakeslee , S. E. Zepf , A. Kundu , H. -S. Kim , S. -J. Yoon
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