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We report the discovery of the most distant radio galaxy to date, TGSS1530 at a redshift of $z=5.72$ close to the presumed end of the Epoch of Reionisation. The radio galaxy was selected from the TGSS ADR1 survey at 150 MHz for having to an…

This is the first paper in a series presenting and analyzing data for a K-selected sample of galaxies collected in order to identify and study galaxies at moderate to high redshift in rest-wavelength optical light. The sample contains 842…

We model galaxy evolution in the 6.75 and 15 micron passbands of the ISO satellite, by combining models of galaxy evolution at optical wavelengths (which are consistent with the optical galaxy counts) with observed spectral energy…

Astrophysics · Physics 2009-10-31 Nathan Roche , Steve Eales

Near-infrared surveys have revealed a substantial population of enigmatic faint galaxies with extremely red optical-to-near-infrared colours and with a sky surface density comparable to that of faint quasars. There are two scenarios for…

Astrophysics · Physics 2009-10-30 Andrea Cimatti , Paola Andreani , Huub Röttgering , Remo Tilanus

We have made the first detections of the 88 micron [OIII] line from galaxies in the early Universe, detecting the line from the lensed AGN/starburst composite systems APM 08279+5255 at z = 3.911 and SMM J02399-0136 at z = 2.8076. The line…

Cosmology and Nongalactic Astrophysics · Physics 2010-04-12 C. Ferkinhoff , S. Hailey-Dunsheath , T. Nikola , S. C. Parshley , G. J. Stacey , D. J. Benford , J. G. Staguhn

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…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-17 Matthew B. Bayliss , Jane R. Rigby , Keren Sharon , Eva Wuyts , Michael Florian , Michael D. Gladders , Traci Johnson , Masamune Oguri

We report detections of two candidate distant submillimeter galaxies (SMGs), MM J154506.4$-$344318 and MM J154132.7$-$350320, which are discovered in the AzTEC/ASTE 1.1 mm survey toward the Lupus-I star-forming region. The two objects have…

2MASX J04035024-0239275 is a bright red elliptical galaxy at redshift 0.0661 that presents two extended sources at 2\arcsec~to the north-east and 1\arcsec~to the south-west. The sizes and surface brightnesses of the two blue sources are…

Cosmology and Nongalactic Astrophysics · Physics 2018-06-13 Lluís Galbany , Thomas E. Collett , Jairo Méndez-Abreu , Sebastián F. Sánchez , Joseph P. Anderson , Hanindyo Kuncarayakti

We report evidence of a fully established galaxy cluster at z=2.07, consisting of a ~20sigma overdensity of red, compact spheroidal galaxies spatially coinciding with extended X-ray emission detected with XMM-Newton. We use VLT VIMOS and…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 R. Gobat , E. Daddi , M. Onodera , A. Finoguenov , A. Renzini , N. Arimoto , R. Bouwens , M. Brusa , R. -R. Chary , A. Cimatti , M. Dickinson , X. Kong , M. Mignoli

We present a study of the classification of z ~1 extremely red objects (EROs), using a combination of HST/ACS, Spitzer/IRAC, and ground-based images of the COSMOS field. Our sample includes about 5300 EROs with i-Ks>2.45 (AB, equivalently…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Xu Kong , Guanwen Fang , Nobuo Arimoto , Min Wang

We report the discovery of a highly luminous optical transient (OT), SDSS J124602.54+011318.8, associated with a galaxy at a redshift of 0.385. In this paper we consider the possibility that the OT may be a GRB afterglow. Three sets of…

The galaxy cluster SPT-CL J0205-5829 currently has the highest spectroscopically-confirmed redshift, z=1.322, in the South Pole Telescope Sunyaev-Zel'dovich (SPT-SZ) survey. XMM-Newton observations measure a core-excluded temperature of…

We present the first results of a large-scale survey, using the UV/blue sensitive LRIS-B spectrograph on the Keck I telescope, of galaxies in the redshift interval 1.4<z<2.5, often called the `redshift desert' because of historical…

Astrophysics · Physics 2008-11-26 C. C. Steidel , A. E. Shapley , M. Pettini , K. L. Adelberger , D. K. Erb , N. A. Reddy , M. P. Hunt

We present a study of the largest available sample of near-infrared selected (i.e., stellar mass selected) dynamically close pairs of galaxies at low redshifts ($z<0.3$). We combine this sample with new estimates of the major-merger pair…

Astrophysics of Galaxies · Physics 2015-06-22 R. C. Keenan , S. Foucaud , R. De Propris , B. C. Hsieh , L. Lin , R. C. Y. Chou , S. Huang , J. H. Lin , K. H. Chang

Several recent studies have shown that about half of the massive galaxies at z~2 are in a quiescent phase. Moreover, these galaxies are commonly found to be ultra-compact with half-light radii of ~1 kpc. We have obtained a ~29 hr spectrum…

Cosmology and Nongalactic Astrophysics · Physics 2009-07-22 Mariska Kriek , Pieter G. van Dokkum , Ivo Labbe , Marijn Franx , Garth D. Illingworth , Danilo Marchesini , Ryan F. Quadri

We report the discovery of a confirmed supernova (SN) and a supernova-candidate in near-infrared images from the ALTAIR/NIRI adaptive optics system on the Gemini-North Telescope and NICMOS on the Hubble Space Telescope. The Gemini images…

We present a detailed study of the spatially resolved kinematics, star-formation and stellar mass in a highly amplified galaxy at z=4.92 behind the lensing cluster MS1358+62. We use the observed optical, near- and mid-infrared imaging from…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Mark Swinbank , Tracy Webb , Johan Richard , Richard Bower , Richard Ellis , Garth Illingworth , Tucker Jones , Mariska Kriek , Ian Smail , Dan Stark , Pieter Van Dokkum

We use deep and wide near infrared (NIR) imaging from the Palomar telescope combined with DEEP2 spectroscopy and Hubble Space Telescope (HST) and Chandra Space Telescope imaging to investigate the nature of galaxies that are red in NIR…

Our view of galaxy evolution has been dramatically enhanced by the recent deep field submm surveys carried out with the SCUBA camera on the JCMT. SCUBA has discovered a population of luminous infrared galaxies at redshifts ~1-4 that emit…

Astrophysics · Physics 2009-10-31 D. B. Sanders

We present the first detailed study of the stellar populations of star-forming galaxies at z~1.5, which are selected by their [O II] emission line, detected in narrow-band surveys. We identified ~1,300 [O II] emitters at z=1.47 and z=1.62…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-05 Chun Ly , Matthew A. Malkan , Nobunari Kashikawa , Masao Hayashi , Tohru Nagao , Kazuhiro Shimasaku , Kazuaki Ota , Nathaniel R. Ross
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