中文
相关论文

相关论文: Strong [O III] {\lambda}5007 Compact Galaxies Iden…

200 篇论文

From a search of a ~ 2400 square degree region covered by both the SDSS and UKIDSS databases, we have attempted to identify galaxies at z ~ 0.5 that are consistent with their being essentially unmodified examples of the luminous passive…

宇宙学与河外天体物理 · 物理学 2015-06-18 Alan Stockton , Hsin-Yi Shih , Kirsten Larson , Andrew W. Mann

We present the largest publicly available catalogue of compact groups of galaxies identified using the original selection criteria of Hickson, selected from the Sixth Data Release (DR6) of the Sloan Digital Sky Survey (SDSS). We identify…

天体物理学 · 物理学 2009-11-13 Alan McConnachie , David Patton , Sara Ellison , Luc Simard

As some of the only Lyman continuum (LyC) emitters at z~0, Green Pea (GP) galaxies are possible analogs of the sources that reionized the universe. We present HST COS spectra of 13 of the most highly ionized GPs, with [O III]/[O II]=6-35,…

星系天体物理 · 物理学 2020-01-08 Anne E. Jaskot , Tara Dowd , M. S. Oey , Claudia Scarlata , Jed McKinney

We study how half-mass radii, central mass densities ($\Sigma_1$), and color gradients change as galaxies evolve. We separate $\sim7,000$ galaxies into sixteen groups with similar spectral shapes; each group represents a different…

星系天体物理 · 物理学 2021-07-12 Katherine A. Suess , Mariska Kriek , Sedona H. Price , Guillermo Barro

Rampazzo et al. 2005 (Paper I) presented a data-set of line-strength indices for 50 early-type galaxies in the nearby Universe. The galaxy sample is biased toward galaxies showing emission lines, located in environments corresponding to a…

天体物理学 · 物理学 2009-11-11 F. Annibali , A. Bressan , R. Rampazzo , W. W. Zeilinger

We analyse a sample of 71 triplets of luminous galaxies derived from the work of O'Mill et al. (2012). We compare the properties of triplets and their members with those of control samples of compact groups, the ten brightest members of…

宇宙学与河外天体物理 · 物理学 2015-06-16 Fernanda Duplancic , Ana Laura O'Mill , Diego G. Lambas , Laerte Sodré , Sol Alonso

We have measured the clustering properties of low-redshift (z < 0.3) sub-mm galaxies detected at 250 micron in the Herschel-ATLAS Science Demonstration Phase (SDP) field. We selected a sample for which we have high-quality spectroscopic…

From a search of a portion of the sky covered by the SDSS and UKIDSS databases, we have located 2 galaxies at z~0.5 that have properties similar to those of the luminous passive compact galaxies found at z~2.5. From Keck moderate-resolution…

宇宙学与河外天体物理 · 物理学 2015-05-14 Alan Stockton , Hsin-Yi Shih , Kirsten Larson

Green Peas represent a population of compact, highly star-forming dwarf galaxies at redshifts z ~ 0.2-0.3 that have recently been found to show signatures of ultraviolet ionizing radiation leakage. They are being considered as analogs to…

星系天体物理 · 物理学 2019-08-14 Jiří Svoboda , Vanesa Douna , Ivana Orlitová , Matthias Ehle

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

We analyzed the spatial distribution of 28500 photometrically selected galaxies with AB magnitude 23.5<R<25.5 and redshift 1.4<z<3.5 in 21 fields with a total area of 0.81 square degrees. The galaxies were divided into three subsamples,…

天体物理学 · 物理学 2009-11-10 K. L. Adelberger , C. C. Steidel , M. Pettini , A. E. Shapley , N. A. Reddy , D. K. Erb

By constructing scaling relations for galaxies in the massive cluster MACSJ0717.5 at $z=0.545$ and comparing with those of Coma, we model the luminosity evolution of the stellar populations and the structural evolution of the galaxies. We…

星系天体物理 · 物理学 2016-12-21 L. J. Oldham , R. C. W. Houghton , Roger L. Davies

We analyse the photometric and spectroscopic properties of four galaxies in the epoch of reionisation (EoR) within the SMACS 0723 JWST Early Release Observations field. Given the known spectroscopic redshifts of these sources, we…

We present a sample of 22 blue ($(B-V)_{AB}<0.45$), luminous ($M_{B,AB}<-18.9$), metal-poor galaxies in the $0.69<z<0.88$ redshift range, selected from the DEEP2 galaxy redshift survey. Their spectra contain the $[OIII]\lambda4363$ auroral…

星系天体物理 · 物理学 2016-08-08 José M. Pérez , Carlos Hoyos , Ángeles I. Díaz , David C. Koo , Christopher N. Willmer

Type-III S0 galaxies present tight scaling relations between their surface brightness photometric and structural parameters. Several evolutionary models have been proposed for the formation of Type-III S0 galaxies but the observations of…

We present a sample of low-redshift (z<0.133) candidates for extremely low-metallicity star-forming galaxies with oxygen abundances 12+logO/H<7.4 selected from the Data Release 14 (DR14) of the Sloan Digital Sky Survey (SDSS). Three methods…

星系天体物理 · 物理学 2019-03-06 Y. I. Izotov , N. G. Guseva , K. J. Fricke , C. Henkel

Evolution of galaxies through cosmic time has been widely studied at high redshift, but there are a few studies in this field at lower redshifts. However, low-redshifts studies will provide important clues to the evolution of galaxies,…

We discuss the nature of faint 6.7um galaxies detected with the mid-infrared camera ISOCAM on board the Infrared Space Observatory (ISO). The 23 hour integration on the Hawaii Deep Field SSA13 has provided a sample of 65 sources down to…

Dynamical analysis of compact groups provides important tests of models of compact group formation and evolution. By compiling 2066 redshifts from FLWO/FAST, from the literature, and from SDSS DR12 in the fields of compact groups in…

We have constructed a morphologically divided redshift distribution of faint field galaxies using a statistically unbiased sample of 196 galaxies brighter than I = 21.5 for which detailed morphological information (from the Hubble Space…

天体物理学 · 物理学 2009-10-31 M. Im , R. E. Griffiths , A. Naim , K. U. Ratnatunga , N. Roche , R. F. Green , V. L. Sarajedini