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相关论文: A robust method for fitting peculiar velocity fiel…

200 篇论文

We explore the complementarity of weak lensing and galaxy peculiar velocity measurements to better constrain modifications to General Relativity. We find no evidence for deviations from GR on cosmological scales from a combination of…

宇宙学与河外天体物理 · 物理学 2012-10-26 Yong-Seon Song , Gong-Bo Zhao , David Bacon , Kazuya Koyama , Robert C Nichol , Levon Pogosian

We have undertaken a pilot project to measure the rotation velocities of spiral galaxies in the redshift range 0.18 < z < 0.4 using high dispersion long slit spectroscopy obtained with the Palomar 5m telescope. One field galaxy and three…

天体物理学 · 物理学 2009-10-28 Nicole P. Vogt , Terry Herter , Martha P. Haynes , Stephane Courteau

We study the influence of the assumption behind the use of the inverse Tully-Fisher relation: that there should be no observational cutoffs in the TF parameter log(V_M). It is noted how lower and upper cutoffs would be seen in a log(H_0)…

天体物理学 · 物理学 2007-05-23 P. Teerikorpi , T. Ekholm , M. O. Hanski , G. Theureau

We find a new Tully-Fisher-like relation for spiral galaxies holding at different galactocentric radii. This Radial Tully-Fisher (RTF) relation allows us to investigate the distribution of matter in the optical regions of spiral galaxies.…

天体物理学 · 物理学 2008-11-26 Irina A. Yegorova , Paolo Salucci

The enhanced Kinematics of the Local Universe (KLUN+) galaxy sample is a collection of galaxies suitable for Tully-Fisher (TF) or Faber-Jackson (FJ) distance estimation. Here we extract a subsample of 6229 KLUN+ galaxies closer than 80…

天体物理学 · 物理学 2007-05-23 M O Hanski

The Tully-Fisher Relationship (TFR) is utilized to identify anomalous redshifts in normal spiral galaxies. Three redshift anomalies are identified in this analysis: (1) Several clusters of galaxies are examined in which late type spirals…

天体物理学 · 物理学 2009-11-10 David G. Russell

We investigate distortions in the velocity fields of disc galaxies and their use to reveal the dynamical state of interacting galaxies at different redshift. For that purpose, we model disc galaxies in combined N-body/hydrodynamic…

天体物理学 · 物理学 2009-11-13 T. Kronberger , W. Kapferer , S. Schindler , B. L. Ziegler

This is the first paper of a series aiming at investigating galaxy formation and evolution in the giant-void class of the Lemaitre-Tolman-Bondi (LTB) models that best fits current cosmological observations. Here we investigate the…

宇宙学与河外天体物理 · 物理学 2013-10-18 A. Iribarrem , P. Andreani , C. Gruppioni , S. February , M. B. Ribeiro , S. Berta , E. Le Floc'h , B. Magnelli , R. Nordon , P. Popesso , F. Pozzi , L. Riguccini

We combine newly measured rotation velocities, velocity dispersions, and stellar masses to construct stellar mass Tully-Fisher relations (M*TFRs) for 544 galaxies with strong emission lines at 0.1<z<1.2 from the All Wavelength Extended…

A precise derivation of the evolution of the Tully Fisher is crucial to understand the interplay between dark matter and baryonic matter in cosmological models, Using 15 deployable integral field units of FLAMES/GIRAFFE at VLT, we have…

天体物理学 · 物理学 2009-11-11 H. Flores , F. Hammer , M. Puech , P. Amram , C. Balkowski

The Tully-Fisher relationship (TFR) has been shown to have a relatively small observed scatter of ~ +/-0.35 mag implying an intrinsic scatter < +/-0.30 mag. However, when the TFR is calibrated from distances derived from the Hubble relation…

天体物理学 · 物理学 2009-11-10 David G. Russell

We construct a multiparametric Tully-Fisher (TF) relation for a large sample of edge-on galaxies from the Revised Flat Galaxy Catalog using HI data from the EDD database and parameters from the EGIS catalog. We incorporate a variety of…

星系天体物理 · 物理学 2018-06-20 D. I. Makarov , N. A. Zaitseva , D. V. Bizyaev

A tangential distortion of background source galaxies around foreground lens galaxies in the Hubble Deep Field is detected at the 99.3% confidence level. An important element of our analysis is the use of photometric redshifts to determine…

天体物理学 · 物理学 2009-10-30 Michael J. Hudson , Stephen D. J. Gwyn , Haakon Dahle , Nick Kaiser

Infrared I band photometry and velocity widths for galaxies in 24 clusters, with radial velocities between 1,000 and 10,000 \kms, are used to construct a template Tully--Fisher (TF) relation. The sources of scatter in the TF diagram are…

天体物理学 · 物理学 2009-10-28 R. Giovanelli , M. Haynes , T. Herter , N. Vogt , L. da Costa , W. Freudling , J. Salzer , G. Wegner

We present preliminary results from the Shellflow program, an all-sky Tully-Fisher (TF) survey of 297 Sb-Sc with redshifts between 4000 and 7500 km/s. The program was designed to ensure uniformity of the data between observing runs and…

天体物理学 · 物理学 2007-05-23 S. Courteau , J. A. Willick , M. A. Strauss , D. Schlegel , M. Postman

We present an improved POTENT method for reconstructing the velocity and mass density fields from radial peculiar velocities, test it with mock catalogs, and apply it to the Mark III Catalog. Method improvments: (a) inhomogeneous Malmquist…

天体物理学 · 物理学 2009-10-31 A. Dekel , A. Eldar , T. Kolatt , A. Yahil , J. A. Willick , S. M. Faber , S. Courteau , D. Burstein

We have measured the cosmic momentum power spectrum from the peculiar velocities of galaxies in the SFI sample. The SFI catalog contains field spiral galaxies with radial peculiar velocities derived from the I-band Tully-Fisher relation. As…

天体物理学 · 物理学 2009-11-13 Chan-Gyung Park , Changbom Park

We present new 21-cm neutral hydrogen (HI) observations of spiral galaxies for the 2MASS Tully Fisher (2MTF) survey. Using the 64-m Parkes radio telescope multibeam system we obtain 152 high signal-to-noise HI spectra from which we extract…

We investigate the effect of peculiar velocities on the redshift space distribution of z>~2 galaxies, and we focus in particular on Ly-alpha emitters. We generate catalogues of dark matter (DM) halos and identify emitters with halos of the…

天体物理学 · 物理学 2007-05-23 P. Monaco , P. Moller , J. Fynbo , M. Weidinger , C. Ledoux , T. Theuns

We studied, for the first time, the near infrared, stellar and baryonic Tully-Fisher relations for a sample of field galaxies taken from an homogeneous Fabry-Perot sample of galaxies (the GHASP survey). The main advantage of GHASP over…

宇宙学与河外天体物理 · 物理学 2015-05-28 S. Torres-Flores , B. Epinat , P. Amram , H. Plana , C. Mendes de Oliveira