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相关论文: SDSS J122958.84+000138.0: A Compact, Optically red…

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We report the detection of 1.3mm continuum and near-infrared K-band (2.2-micron) emission from the submillimeter galaxy SMM J00266+1708. Although this galaxy is among the brightest sub-mm sources detected in the blank-sky surveys (L~10^{13}…

天体物理学 · 物理学 2009-10-31 D. T. Frayer , Ian Smail , R. J. Ivison , N. Z. Scoville

We present the results of a detailed analysis of galaxy properties along the red sequence in XMMU J1229+0151, an X-ray selected cluster at $z=0.98$ drawn from the HAWK-I Cluster Survey (HCS). Taking advantage of the broad photometric…

星系天体物理 · 物理学 2015-06-18 P. Cerulo , W. J. Couch , C. Lidman , L. Delaye , R. Demarco , M. Huertas-Company , S. Mei , R. Sanchez-Janssen

We report new radio observations of SDSS J090122.37+181432.3, a strongly lensed star-forming galaxy at $z=2.26$. We image 1.4 GHz (L-band) and 3 GHz (S-band) continuum using the VLA and 1.2 mm (band 6) continuum with ALMA, in addition to…

We present the discovery of an extremely-luminous dust-obscured galaxy (DOG) at $z_{\rm spec}$ = 3.703, WISE J101326.25+611220.1. This DOG is selected as a candidate of extremely-luminous infrared (IR) galaxies based on the photometry from…

星系天体物理 · 物理学 2018-04-25 Yoshiki Toba , Junko Ueda , Chen-Fatt Lim , Wei-Hao Wang , Tohru Nagao , Yu-Yen Chang , Toshiki Saito , Ryohei Kawabe

We present high-resolution maps of stars, dust, and molecular gas in a strongly lensed submillimeter galaxy (SMG) at z = 3.259. HATLAS12--00 is selected from the Herschel-Astrophysical Terahertz Large Area Survey (H-ATLAS) as a strong lens…

We study the internal dynamical structure of the early-type lens galaxy SDSS J0728+3835 at z = 0.206. The analysis is based on two-dimensional kinematic maps extending out to 1.7 effective radii obtained from Keck spectroscopy, on lensing…

宇宙学与河外天体物理 · 物理学 2011-04-05 Matteo Barnabe , Matthew W. Auger , Tommaso Treu , Leon Koopmans , Adam S. Bolton , Oliver Czoske , Raphael Gavazzi

We present near infrared observations of the red gravitational lens system MG0414+0534. Our images are of sufficient quality to allow photometry of all four QSO images and the lens galaxy. The observations show that the K-band brightnesses…

天体物理学 · 物理学 2009-10-30 B. A. McLeod , G. M. Bernstein , M. J. Rieke , D. W. Weedman

We present new GALEX images and optical spectroscopy of J1229+02, a dwarf post-starburst galaxy located 81 kpc from the 1585 km/s absorber in the 3C 273 sight line. The absence of H\alpha\ emission and the faint GALEX UV fluxes confirm that…

星系天体物理 · 物理学 2017-04-04 Brian A. Keeney , Peter Joeris , John T. Stocke , Charles W. Danforth , Emily M. Levesque

We present Hubble Space Telescope (HST) imaging and spectroscopy of the gravitational lens SL2SJ02176-0513, a cusp arc at z=1.847. The UV continuum of the lensed galaxy is very blue, which is seemingly at odds with its redder optical…

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…

Using the Large Binocular Telescope (LBT)/Multi-Object Dual Spectrograph (MODS), we have obtained optical spectroscopy of one of the most metal-poor dwarf star-forming galaxies (SFG) in the local Universe, J2229+2725. This galaxy with a…

星系天体物理 · 物理学 2021-09-28 Y. I. Izotov , T. X. Thuan , N. G. Guseva

We present optical and near-IR imaging and spectroscopy of SGAS J105039.6$+$001730, a strongly lensed galaxy at z $=$ 3.6252 magnified by $>$30$\times$, and derive its physical properties. We measure a stellar mass of…

宇宙学与河外天体物理 · 物理学 2015-06-17 Matthew B. Bayliss , Jane R. Rigby , Keren Sharon , Eva Wuyts , Michael Florian , Michael D. Gladders , Traci Johnson , Masamune Oguri

Supermassive black holes (SMBHs) are found ubiquitously in large, bulge-dominated galaxies throughout the local universe, yet little is known about their presence and properties in bulgeless and low-mass galaxies. This is a significant…

We present ISAAC spectroscopy and ISAAC, UKIDSS and Spitzer Space Telescope broad-band photometry of SDSS J1228+1040 -- a white dwarf for which evidence of a gaseous metal-rich circumstellar disk has previously been found from optical…

太阳与恒星天体物理 · 物理学 2011-02-11 C. S. Brinkworth , B. T. Gaensicke , T. R. Marsh , D. W. Hoard , C. Tappert

Recent observations have revealed a remarkably rapid buildup of cosmic dust in the interstellar medium (ISM) of high redshift galaxies, with complex dust compositions and large abundances already appearing at redshifts $z>6$. Here we…

We present a multi-wavelength study of galaxy populations in the core of the massive, X-ray luminous cluster XMMU J2235 at z=1.39, based on VLT and HST optical and near-infrared photometry. Luminosity functions in the z, H, and Ks bands…

Candidates for the modest galaxies that formed most of the stars in the early universe, at redshifts $z > 7$, have been found in large numbers with extremely deep restframe-UV imaging. But it has proved difficult for existing spectrographs…

We present near-IR spectroscopy and HST imaging of EROJ164023, an Extremely Red Object (ERO) with R-K=5.9 at z=1.05. EROJ164023 is a disk galaxy, with an optical/IR spectral energy distribution which is strongly reddened by dust…

天体物理学 · 物理学 2017-03-22 Graham P. Smith , Tommaso Treu , Richard Ellis , Ian Smail , Jean-Paul Kneib , Brenda Frye

SDSS J0015+0104 is the lowest metallicity low surface brightness dwarf (LSBD) galaxy known. The oxygen abundance in its HII region SDSS J001520.70+010436.9 (at ~1.5 kpc from the galaxy centre) is 12+log(O/H)=7.07 (Guseva et al.). This…

宇宙学与河外天体物理 · 物理学 2015-06-15 S. A. Pustilnik , J. -M. Martin , Y. A. Lyamina , A. Y. Kniazev

Scaling relations are fundamental tools for exploring the morphological properties of galaxies and understanding their formation and evolution. Typically, galaxies follow a scaling relation between mass and size, measured by effective…