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相关论文: Maximum-Likelihood Comparisons of Tully-Fisher and…

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This is the second in a series of papers in which we compare Tully-Fisher (TF) data from the Mark III Catalog with predicted peculiar velocities based on the IRAS galaxy redshift survey and gravitational instability theory, using a rigorous…

天体物理学 · 物理学 2009-10-30 Jeffrey A. Willick , Michael A. Strauss

We consider a measure of the peculiar velocity field derived from the Mark III compilation of 2900 spiral galaxies (Willick \etal 1996b), using an analysis that is substantially free of bias (Nusser and Davis 1995). We expand the velocity…

天体物理学 · 物理学 2009-10-28 Marc Davis , Adi Nusser , Jeff Willick

We present a new method for fitting peculiar velocity models to complete flux limited magnitude-redshifts catalogues, using the luminosity function of the sources as a distance indicator.The method is characterised by its robustness. In…

天体物理学 · 物理学 2009-10-31 Stephane Rauzy , Martin A. Hendry

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…

天体物理学 · 物理学 2008-11-26 Kuenley Chiu , Steven P. Bamford , Andrew Bunker

We present the first results from the Shellflow program, an all-sky Tully-Fisher (TF) peculiar velocity survey of 276 Sb-Sc galaxies with redshifts between 4500 and 7000 km/s. Shellflow was designed to minimize systematic errors between…

天体物理学 · 物理学 2009-10-31 S. Courteau , J. A. Willick , M. A. Strauss , D. Schlegel , M. Postman

Peculiar velocities are an important probe of the mass distribution in the Universe and the growth rate of structure, directly measuring the effects of gravity on the largest scales and providing a test for theories of gravity. Comparing…

宇宙学与河外天体物理 · 物理学 2024-04-30 Paula Boubel , Matthew Colless , Khaled Said , Lister Staveley-Smith

We study the peculiar velocity field inferred from the Mark III spirals using a new method of analysis. We estimate optimal values of Tully-Fisher scatter and zero-point offset, and we derive the 3-dimensional rms peculiar velocity…

天体物理学 · 物理学 2009-10-31 Nelson Padilla , Diego G. Lambas

We compare the peculiar velocities derived from the I-band Tully-Fisher (TF) relation for 989 field spiral galaxies in the SFI catalogue with the predicted velocity field derived from the IRAS PSCz galaxy redshift survey. We assume linear…

This is the third in a series of papers in which we assemble and analyze a homogeneous catalog of peculiar velocity data. In Papers I and II, we described the Tully-Fisher (TF) redshift-distance samples that constitute the bulk of the…

(abridged) We perform a reconstruction of the cosmological large scale flows in the nearby Universe using two complementary observational sets. The first, the SFI++ sample of Tully-Fisher (TF) measurements of galaxies, provides a direct…

宇宙学与河外天体物理 · 物理学 2015-05-20 Marc Davis , Adi Nusser , Karen Masters , Christopher Springob , John P. Huchra , Gerard Lemson

We present a method for deriving a smoothed estimate of the peculiar velocity field of a set of galaxies with measured circular velocities $\eta\equiv {\rm log} \Delta v$ and apparent magnitudes $m$. The method is based on minimizing the…

天体物理学 · 物理学 2015-06-24 Adi Nusser , Marc Davis

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

We measure the relation between galaxy luminosity and disk circular velocity (the Tully-Fisher [TF] relation), in the g, r, i, and z-bands, for a broadly selected sample of galaxies from the Sloan Digital Sky Survey, with the goal of…

Using the Tully-Fisher relation, we derive peculiar velocities for the 2MASS Tully-Fisher Survey and describe the velocity field of the nearby Universe. We use adaptive kernel smoothing to map the velocity field, and compare it to…

We present a comparison between the peculiar velocity fields measured from the SFI all-sky Sbc-Sc Tully-Fisher catalog and that derived from the \iras 1.2 Jy redshift survey galaxy distribution. The analysis is based on the expansion of…

We have measured maximum rotation velocities (Vrot) for a sample of 111 emission-line galaxies with 0.1 < z < 1, observed in the fields of 6 clusters. From these data we construct 'matched' samples of 58 field and 22 cluster galaxies,…

天体物理学 · 物理学 2009-11-10 S. P. Bamford , B. Milvang-Jensen , A. Aragon-Salamanca , L. Simard

Observational parameters which can be used for redshift-independent distance determination using the Tully-Fisher (TF) technique are given for 782 spiral galaxies in the fields of 24 clusters or groups. I band photometry for the full sample…

天体物理学 · 物理学 2009-07-28 R. Giovanelli , M. Haynes , T. Herter , N. Vogt , L. da Costa , W. Freudling , J. Salzer , G. Wegner

We present a study of the stellar and baryonic Tully-Fisher relation within the redshift range of $0.6 \leq z \leq 2.5$ utilizing observations of \sfgs. This dataset, as explored in \citet{GS23}, comprises of disk-like galaxies spanning a…

星系天体物理 · 物理学 2024-09-25 Gauri Sharma , Varenya Upadhyaya , Paolo Salucci , Shantanu Desai

Recent progress in the measurement of relative distances to galaxies has been quite substantial, and catalogs of 3000 galaxies with distances are soon to become available. The peculiar {\it velocity} field (deviations from Hubble flow)…

天体物理学 · 物理学 2016-08-30 Marc Davis , Adi Nusser
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