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Galaxies: starbursts

Starbursts and the triggering of the activity in nearby powerful radio galaxies

Starbursts and the triggering of the activity in nearby powerful radio galaxies

... radio galaxies (Tadhunter et ...radio galaxies in the local Universe classified as a ULIG based on its far-IR luminosity, the other two sources – 3C 293 and 3C 305 – have far-IR luminosities that are orders ...

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Compact Star-forming Galaxies as Old Starbursts Becoming Quiescent

Compact Star-forming Galaxies as Old Starbursts Becoming Quiescent

... star-forming galaxies ( SFGs ) have been proposed as immediate progenitors of quiescent galaxies, although their origin and nature are ...merger-driven starbursts? Answering this question would ...

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Extremely obscured galaxy nuclei — hidden AGNs and extreme starbursts

Extremely obscured galaxy nuclei — hidden AGNs and extreme starbursts

... Studying the accretion and growth of SMBHs is essential for our understanding of how they coevolve with their host galaxies 2 (e.g. Ho 2004, Chen+13). AGN population synthesis models suggest an average ratio of ...

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Mergers, starbursts, and quenching in the Simba simulation

Mergers, starbursts, and quenching in the Simba simulation

... that galaxies do not have to quench at the same time as their AGN jets turn on; it could be that the jet feedback heats surrounding gas, and then the rapid quenching occurs at some later time as the remaining gas ...

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An excess of dusty starbursts related to the Spiderweb galaxy

An excess of dusty starbursts related to the Spiderweb galaxy

... Koyama et al. (2013a) find a clustering of HAEs around the radio galaxy MRC1138−262 and report a large filament from north-east to south-west (10 Mpc); a part of this filament was seen in the data of Kurk et al. (2004b). ...

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Starburst galaxies in the COSMOS field : clumpy star formation at redshift 0 < z

Starburst galaxies in the COSMOS field : clumpy star formation at redshift 0 < z <0 5

... galaxies (obtained from the Sloan Digital Sky Survey; SDSS) massive clumps in local starbursts belonging to the Kiso Sur- vey (Miyauchi-Isobe et al. 2010), and clumps in galaxies at high redshift ...

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Initial mass function variations cannot explain the ionizing spectrum of low metallicity starbursts

Initial mass function variations cannot explain the ionizing spectrum of low metallicity starbursts

... Maseda et al. 2017), and even higher redshifts in rare cases (e.g. Stark et al. 2017), it is now possible to construct photoion- ization models which yield insight into the physical conditions in these star-forming ...

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Evolution of starburst galaxies in the Illustris simulation

Evolution of starburst galaxies in the Illustris simulation

... how starbursts in the pre- merger/harassment sample are being triggered, we examine the locations and track the movements of galaxies within a 100 kpc radius surrounding the pre-merger/harassment starburst ...

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A relationship between specific star formation rate and metallicity gradient within z ~ 1 galaxies from KMOS-HiZELS

A relationship between specific star formation rate and metallicity gradient within z ~ 1 galaxies from KMOS-HiZELS

... star-forming galaxies increases with redshift (Elbaz et ...of starbursts at any epoch are major mergers (Stott et ...the galaxies’ redshift and plot this against metallicity gradient in ...

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COS Burst : observations of the impact of starburst driven winds on the properties of the circum galactic medium

COS Burst : observations of the impact of starburst driven winds on the properties of the circum galactic medium

... identifying starbursts and post-starburst galaxies using SDSS DR7 spectra ( Wild et ...characterizing galaxies that are undergoing or have recently undergone a strong burst of star formation ( ...

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DDO 216 A1: a central globular cluster in a low luminosity transition type galaxy

DDO 216 A1: a central globular cluster in a low luminosity transition type galaxy

... dwarf galaxies probably stem from a combination of the location of DDO 216-A1, seen in projection against the densest part of PegDIG; the unusually extended nature of the cluster, which both gives it much less ...

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The Distribution of Rich Clusters of Galaxies

The Distribution of Rich Clusters of Galaxies

... effects of the projected distribution along the line of sight of images of galaxies at various distances, of galaxies belonging to clusters centered outside the photograph, and of galaxi[r] ...

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Triggering active galactic nuclei in galaxy clusters

Triggering active galactic nuclei in galaxy clusters

... Recent decades have brought recognition of the important role active galactic nuclei (AGN) play in regulating the cosmic star formation histories of their host galaxies and larger scale environments (e.g. ...

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Photographic, spectrographic and photometric studies of southern galaxies

Photographic, spectrographic and photometric studies of southern galaxies

... process was often more complicated, as one of 3 graphs had to he used. In addition, the steep curve was often rotated in order to obtain a smooth fit of the points. This applied, for instance, to the late type spiral NGC ...

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Determining the halo mass scale where galaxies lose their gas

Determining the halo mass scale where galaxies lose their gas

... cluster galaxies, they found that the fi eld galaxies were approximately 1 – 2 Gyr younger than the cluster galaxies at a fi xed stellar ...eld galaxies and explore the consequences ...old ...

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Galaxies and the Universe

Galaxies and the Universe

... Perhaps the most convincing evi- dence for the existence of considerable intergalactic mass is furnished by the internal motions in some clusters or groups of galaxies, like the central [r] ...

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nIFTy cosmology: comparison of galaxy formation models

nIFTy cosmology: comparison of galaxy formation models

... satellite galaxies. We assign luminosities to central galaxies based on abundance matching taking into account the scat- ter between halo mass and ...the galaxies assuming a Gaussian velocity ...

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Why is "The Evolution of Stars" incorrect?

Why is "The Evolution of Stars" incorrect?

... This quotation from Wikipedia may had been acceptable in the past, because readers were unable to check the real situation in data bases of stars and other objects inside the galaxy and beyond. These days, when there is ...

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GLACE survey: OSIRIS/GTC tuneable filter Hα imaging of the rich galaxy cluster ZwCl 0024 0+1652 at z=0 395

GLACE survey: OSIRIS/GTC tuneable filter Hα imaging of the rich galaxy cluster ZwCl 0024 0+1652 at z=0 395

... We have explored the available mechanisms for separating the population of SF galaxies and AGNs. Broad-line AGNs (BLAGN) show permitted lines with widths of thousands of kilometres per second. By contrast, in ...

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Universe: Not Expanding

Universe: Not Expanding

... the galaxies remain the same, ...the galaxies are on a surface of an expanding balloon of radius ...The galaxies move away from each other as orbits dilate (or the balloon expands), and all the ...

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