中文
相关论文

相关论文: Double barred galaxies at intermediate redshifts: …

200 篇论文

We present the serendipitous discovery of z=4.05 molecular gas CO emission lines with the IRAM Plateau de Bure interferometer coincident with GN20 and GN20.2, two luminous submillimeter galaxies (SMGs) in the Great Observatories Origins…

天体物理学 · 物理学 2011-02-11 E. Daddi , H. Dannerbauer , D. Stern , M. Dickinson , G. Morrison , D. Elbaz , M. Giavalisco , C. Mancini , A. Pope , H. Spinrad

We report the discovery of a candidate dual QSO at z=1.889, a redshift that is in the era known as "cosmic noon" where most of the Universe's black hole and stellar mass growth occurred. The source was identified in Hubble Space Telescope…

The race for the most distant object in the Universe has been played by long-duration gamma-ray bursts (GRBs), star-forming galaxies and quasars. GRBs took a temporary lead with the discovery of GRB 090423 at a redshift z=8.2, but now the…

高能天体物理现象 · 物理学 2022-10-19 S. Campana , G. Ghirlanda , R. Salvaterra , O. A. Gonzalez , M. Landoni , G. Pariani , A. Riva5 , M. Riva , S. J. Smartt , N. R. Tanvir , S. D. Vergani

In this first paper in the SUPER GOODS series on powerfully star-forming galaxies in the two GOODS fields, we present a deep SCUBA-2 survey of the GOODS-N at both 850 and 450 micron (central rms noise of 0.28 mJy and 2.6 mJy, respectively).…

星系天体物理 · 物理学 2020-01-16 Lennox L. Cowie , Amy J. Barger , Li-Yen Hsu , Chian-Chou Chen , Frazer N. Owen , Wei-Hao Wang

We present an early analysis on the search for high redshift galaxies using the deepest public JWST imaging to date, the NGDEEP field. This data consists of 6-band NIRCam imaging on the Hubble Ultra Deep Field-Par2, covering a total area of…

星系天体物理 · 物理学 2023-07-26 D. Austin , N. J. Adams , C. J. Conselice , T. Harvey , K. Ormerod , J. Trussler , Q. Li , L. Ferreira , P. Dayal

We use the deepest and the most comprehensive photometric data currently available for GOODS-South galaxies to measure their photometric redshifts. The photometry includes VLT/VIMOS (U-band), HST/ACS (F435W, F606W, F775W, and F850LP bands),…

We present the first results of the ESO/GOODS program of spectroscopy of faint galaxies in the Chandra Deep Field South (CDF-S). 399 spectra of 303 unique targets have been obtained in service mode with the FORS2 spectrograph at the…

In the accretion-driven growth scenario, part of the intracluster light is formed in the group environment. We report the serendipitous discovery of a group of galaxies with signs of diffuse light in the foreground of the known galaxy…

宇宙学与河外天体物理 · 物理学 2023-03-15 M. Girardi , S. Zarattini , W. Boschin , M. Nonino , I. Bartalucci , A. Mercurio , N. Nocerino , P. Rosati

We present a deep BVrIK multicolor catalog of galaxies in the field of the high redshift (z=4.7) quasar BR 1202-0725. Reliable colors have been measured for galaxies selected down to R=25. The choice of the optical filters has been…

天体物理学 · 物理学 2009-10-30 E. Giallongo , S. D'Odorico , A. Fontana , S. Cristiani , E. Egami , E. Hu , R. G. McMahon

Massive compact systems at 0.2<z<0.6 are the missing link between the predominantly compact population of massive quiescent galaxies at high redshift and their analogs and relics in the local volume. The evolution in number density of these…

星系天体物理 · 物理学 2015-06-19 Ivana Damjanov , Ho Seong Hwang , Margaret J. Geller , Igor Chilingarian

We report on the initial results of a spectroscopic investigation of galaxies in the Hubble Deep Field which exhibit spectral discontinuities between the F450W and F300W passbands, indicative of the presence of the Lyman continuum break in…

天体物理学 · 物理学 2009-10-28 Charles C. Steidel , Mauro Giavalisco , Mark Dickinson , Kurt L. Adelberger

Looking for bright galaxies born in the early universe is fundamental to investigating the Epoch of Reionization, the era when the first stars and galaxies ionized the intergalactic medium. We utilize Hubble Space Telescope pure parallel…

Gamma-ray bursts (GRBs) are cosmologically distributed, very energetic and very transient sources detected in the gamma-ray domain. The identification of their x-ray and optical afterglows allowed so far the redshift measurement of 150…

天体物理学 · 物理学 2009-11-13 Sandra Savaglio

The combination of deep exposures and high resolution offered by telescopes in space allows the detection of lensing over a wide range of source redshifts and lens masses. As an example, we model a lens candidate found in the southern…

天体物理学 · 物理学 2007-05-23 Rennan Barkana , David Hogg , Abraham Loeb , Roger Blandford

We compare the structural properties of two classes of galaxies at intermediate redshift: those in dynamically close galaxy pairs, and those which are isolated. Both samples are selected from the CNOC2 Redshift Survey, and have redshifts in…

天体物理学 · 物理学 2008-11-26 D. R. Patton , J. K. Grant , L. Simard , C. J. Pritchet , R. G. Carlberg , K. D. Borne

Bright gravitationally lensed galaxies provide our most detailed view of galaxies at high redshift. Yet as a result of the small number of ultra-bright z~2 lensed systems with confirmed redshifts, most detailed spectroscopic studies have…

We present a novel approach for measuring the two-point correlation function of galaxies in narrow pencil beam surveys with varying depths. Our methodology is utilized to expand high-redshift galaxy clustering investigations up to $z \sim…

星系天体物理 · 物理学 2024-08-21 Nicolò Dalmasso , Michele Trenti , Nicha Leethochawalit

We report the serendipitous discoveries of companion galaxies to two high-redshift quasars. SDSS J025617.7+001904 is a z=4.79 quasar included in our recent survey of faint quasars in the SDSS Stripe 82 region. The initial MMT slit…