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We measure seeing-corrected ellipticities for 2 x 10^6 galaxies with magnitude R<23 in 12 widely separated fields totalling 75 deg^2 of sky. At angular scales >30\arcmin, ellipticity correlations are detected at high significance and…

Astrophysics · Physics 2015-06-24 M. Jarvis , G. Bernstein , B. Jain , P. Fischer , D. Smith , J. A. Tyson , D. Wittman

We present a candidate for the most distant galaxy known to date with a photometric redshift z = 10.7 +0.6 / -0.4 (95% confidence limits; with z < 9.5 galaxies of known types ruled out at 7.2-sigma). This J-dropout Lyman Break Galaxy, named…

Local and intermediate redshift (z~0.5) galaxy samples obey well correlated relations between the stellar population luminosity and maximal galaxy rotation that define the Tully-Fisher (TF) relation. Consensus is starting to be reached on…

Astrophysics · Physics 2008-11-26 Kuenley Chiu , Steven P. Bamford , Andrew Bunker

We present a multi-wavelength study of the gravitational lens COSMOS J095930+023427 (z=0.89), together with the associated galaxy group located at $z\sim0.7$ along the line of sight and the lensed background galaxy. The source redshift is…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Shuo Cao , Giovanni Covone , Maurizio Paolillo , Zong-Hong Zhu

We present results from a near/mid IR search for submillimetre galaxies over a region of 6230 sq deg. of the southern sky. We used a cross-correlation of the VISTA Hemispheric Survey (VHS) and the WISE database to identify bright galaxies…

Astrophysics of Galaxies · Physics 2017-02-15 S. Iglesias-Groth , A. Diaz-Sanchez , R. Rebolo , H. Dannerbauer

We only see a small fraction of the matter in the universe, but the rest gives itself away by the impact of its gravity. Peculiar velocities have the potential to be a powerful tool to trace this matter however previous peculiar velocity…

Astrophysics · Physics 2007-08-23 Karen L. Masters

We report the discovery of a new gravitational lens candidate Q2138-431AB, comprising two quasar images at a redshift of 1.641 separated by 4.5 arcsecs. The spectra of the two images are very similar, and the redshifts agree to better than…

We have used Suprime-Cam on the Subaru Telescope to conduct a V- and I-band imaging survey of fields sampling the spheroid of the Andromeda galaxy along its south-east minor axis. Our photometric data are deep enough to resolve stars down…

Astrophysics · Physics 2007-05-23 Mikito Tanaka , Masashi Chiba , Yutaka Komiyama , Masanori Iye , Puragra Guhathakurta

Context: Galaxy clusters at high redshift are important to test cosmological models and models for the growth of structure. They are difficult to find in wide-angle optical surveys, however, leaving dedicated follow-up of X-ray selected…

Cosmology and Nongalactic Astrophysics · Physics 2017-09-11 Andreas Rabitz , Georg Lamer , Axel Schwope , Ali Takey

We report the discovery of three large (R29 >~ 1 arcminute) extremely low surface brightness (mu_(V,0) ~ 27.0) galaxies identified using our deep, wide-field imaging of the Virgo Cluster from the Burrell Schmidt telescope. Complementary…

We have analysed ~24 square degrees of R_C-band imaging data from the Red-Sequence Cluster Survey (RCS), and measured the excess correlations between galaxy ellipticities on scales ranging from 1 to 30 arcminutes. We have used data from two…

We report on the first results of a long-term project to derive distances of galaxies at cosmological distances by applying the CO-line width-luminosity relation. We have obtained deep CO-line observations of galaxies at redshifts up to…

Astrophysics · Physics 2015-06-24 Y. Sofue , F. Schoeniger , M. Honma , Y. Tutui , T. Ichikawa , K. Wakamatsu , I. Kazes , J. Dickey

Using the nearly full sky Ks=11.75 2MASS Redshift Survey [2MRS]of ~45,000 galaxies we reconstruct the underlying peculiar velocity field and constrain the cosmological bulk flow within ~100. These results are obtained by maximizing the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Enzo Branchini , Marc Davis , Adi Nusser

We examine the relationship between galaxies and the intergalactic medium at z < 1 using a group of three closely spaced background QSOs with z_em ~1 observed with the Hubble Space Telescope. Using a new grouping algorithm, we identify…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Neil H. M. Crighton , Simon L. Morris , Jill Bechtold , Robert A. Crain , Buell T. Jannuzi , Allen Shone , Tom Theuns

We have conducted a galaxy survey based on low-resolution slitless spectra taken from the automated CFHT-Laval survey. We present redshift distributions for 522 galaxies distributed in 4 distinct regions of the sky. Redshifts are determined…

Astrophysics · Physics 2015-06-24 M. Beauchemin , E. F. Borra

We report the discovery of a new dwarf galaxy, Andromeda XXVIII, using data from the recently-released SDSS DR8. The galaxy is a likely satellite of Andromeda, and, at a separation of $365^{+17}_{-1}$ kpc, would be one of the most distant…

Astrophysics of Galaxies · Physics 2015-05-30 Colin T. Slater , Eric F. Bell , Nicolas F. Martin

We present the basic properties of three objects near the Galactic Plane - a large galaxy and two candidate globular clusters - discovered in the Two Micron All Sky Survey (2MASS) dataset. All were noted during spot-checks of the data…

We measure the gravitational lensing shear signal around dark matter halos hosting CMASS galaxies using light sources at $z\sim 1$ (background galaxies) and at the surface of last scattering at $z\sim 1100$ (the cosmic microwave…

Cosmology and Nongalactic Astrophysics · Physics 2017-04-26 Hironao Miyatake , Mathew S. Madhavacheril , Neelima Sehgal , Anže Slosar , David N. Spergel , Blake Sherwin , Alexander van Engelen

We report here the discovery of an apparent excess of 2MASS M giant candidates with dereddened 0.85 < J-K_S < 1.2 spanning a considerably large area of the celestial sphere between, at least, $100\degr < l < 150\degr$ and $-20\degr > b >…

We report the redshift of a distant, highly obscured submm galaxy (SMG), based entirely on the detection of its CO line emission. We have used the newly commissioned Eight-MIxer Receiver (EMIR) at the IRAM 30m telescope, with its 8 GHz of…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 A. Weiss , R. J. Ivison , D. Downes , F. Walter , M. Cirasuolo , K. M. Menten