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Related papers: The Diversity of Extremely Red Objects

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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

The most passive galaxies at high redshift are unlikely to be identified by either narrow-band emission-line searches, or by Lyman limit searches (both techniques which have been highlighted at this meeting) simply because such selection…

Astrophysics · Physics 2007-05-23 James Dunlop

The radio properties of 11 obscured `radio-intermediate' quasars at redshifts z>~2 have been investigated using the European Very-Long-Baseline-Interferometry Network (EVN) at 1.66 GHz. A sensitivity of ~25 micro Jy per 14x17 mas2 beam was…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 H. -R. Kloeckner , A. Martinez-Sansigre , S. Rawlings , M. A. Garrett

We present the initial sample of redshifts for 3,839 galaxies in the MeerKAT DEEP2 field -- the deepest $\sim$1.4\,GHz radio field yet observed. Using a spectrophotometric technique combining coarse optical spectra with broadband…

Astrophysics of Galaxies · Physics 2024-04-24 A. M Matthews , D. D. Kelson , A. B. Newman , F. Camilo , J. J. Condon , W. D. Cotton , M. Dickinson , T. H. Jarrett , M. Lacy

We present a photometric analysis of all high Galactic lattitude (|b| > 20d) broad-band parallel images taken by the Near Infrared Camera and Multi-Object Spectrometer (NICMOS) instrument during its initial lifetime in HST Cycle 7. These…

We discuss broad- and narrow-band imaging of 7 arcmin fields of 14 QSOs with redshift ~1.1. The narrow-band filters were chosen to detect redshifted [O II] 3727A, and the broad bands are R and I, which correspond to rest wavelengths…

Astrophysics · Physics 2009-10-22 J. B. Hutchings , D. Crampton , Andrea Johnson

We present optical spectroscopic follow-up of a sample of Distant Red Galaxies (DRGs) with K < 22.5 (Vega), selected by J-K > 2.3, in the Hubble Deep Field South, the MS 1054-03 field, and the Chandra Deep Field South. Spectroscopic…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Stijn Wuyts , Pieter G. van Dokkum , Marijn Franx , Natascha M. Forster Schreiber , Garth D. Illingworth , Ivo Labbe , Gregory Rudnick

The Chandra Deep Field South (CDF-S) 1Ms exposure produced a catalog of 346 X-ray sources, of which 59 were not visible on the VLT/FORS1 and the ESO-MPI/WFI deep R-band images to a limit of R_{vega}=26.1--26.7 mag. Using the first release…

The Infrared Space Observatory (ISO) is used to carry out mid-IR (7 and 15 micron) and far-IR (90 micron) observations of a sample of star-forming sub-mJy radio sources. By selecting the sample at radio wavelengths, one avoids biases due to…

Astrophysics · Physics 2009-11-06 Bahram Mobasher , Jose Afonso , Lawrence Cram

We present an analysis of the properties of optical counterparts of radio sources down to 1 mJy. Optical identifications have been obtained by matching together objects from the APM and FIRST surveys over the region $148.13^\circ\simlt {\rm…

Astrophysics · Physics 2009-11-06 M. Magliocchetti , S. J. Maddox

A census of massive galaxies at redshift increasingly higher than $z\sim$1 may provide strong constraints on the history of mass assembly and of star formation. Here we report on the analysis of three galaxies selected in the Hubble Deep…

Astrophysics · Physics 2007-05-23 M. Longhetti , P. Saracco , S. Cristiani , A. Fontana , E. Giallongo , M. Nonino , E. Vanzella

We describe J,H,K deep imaging of 90 arcmin fields around 4 QSOs and one Radio galaxy at redshifts in the range 0.06 to 0.30, and show their images, luminosity profiles, and NIR 2-colour diagrams of objects. We find that the QSO hosts are…

Astrophysics · Physics 2009-10-28 J. B. Hutchings , S. G. Neff

The Red MSX Source (RMS) survey is a multi-wavelength program of follow-up observations designed to distinguish between genuine massive young stellar objects (MYSOs) and other embedded or dusty objects, such as ultra compact (UC) HII…

We present the optical to near-infrared (IR) spectrum of the galaxy TSPS J1329-0957, a red and bright member of the class of extremely red objects (EROs) at z = 1.26. This galaxy was found in the course of the Tokyo-Stromlo Photometry…

Astrophysics · Physics 2011-11-22 Y. Matsuoka , B. A. Peterson , S. Oyabu , K. Kawara , N. Asami , H. Sameshima , N. Ienaka , T. Nagayama , M. Tamura

A fundamental question of extra-galactic astronomy that is yet to be fully understood, concerns the evolution of the star formation rate (SFR) and supermassive black hole (SMBH) activity with cosmic time, as well as their interplay and how…

We use redshift determinations and spectral analysis of galaxies in the 2dF Galaxy Redshift Survey to study the properties of local radio sources with $S\ge 1$ mJy. 557 objects drawn from the FIRST survey, corresponding to 2.3 per cent of…

The multi-wavelength properties of Very Red Objects (VROs; I-K>=4) are largely unknown as many of these sources are optically faint (I>=24) and undetected at most wavelengths. Here we provide constraints on the X-ray properties of VROs…

We explore the evolved galaxy population in the proto-clusters around four high-z radio galaxies at 2<~z<~3 based on wide-field near-infrared imaging. Three of the four fields are known proto-clusters as demonstrated by overdensities of…

Astrophysics · Physics 2008-11-26 T. Kodama , I. Tanaka , M. Kajisawa , J. Kurk , B. Venemans , C. De Breuck , J. Vernet , C. Lidman

Massive young stellar objects are known to undergo an evolutionary phase in which high mass accretion rates drive strong outflows. A class of objects believed to trace this phase accurately is the GLIMPSE Extended Green Object (EGO) sample,…

Astrophysics of Galaxies · Physics 2019-05-01 Allison P. M. Towner , Crystal L. Brogan , Todd R. Hunter , Claudia J. Cyganowski , Rachel K. Friesen
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