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相关论文: The Distance of the Virgo Cluster

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The distance of the Virgo cluster is derived in the B band from the 21 cm-line width-absolute magnitude relation. The latter is calibrated using 18 spirals with Cepheid distances mainly from HST. The calibration is applied to a complete…

天体物理学 · 物理学 2009-03-20 M. Federspiel , G. A. Tammann , A. Sandage

Six independent methods yield a Virgo cluster modulus of (m-M)=31.66+/- 0.08. This inserted into the Hubble diagram of clusters, whose relative distances to the Virgo cluster are known, gives H_0=54+/-4. The result is independent of any…

天体物理学 · 物理学 2007-05-23 G. A. Tammann , M. Federspiel

The importance of the distance of the Virgo cluster in the ongoing debate on the value of the Hubble constant is reviewed. A new calibration of the Tully-Fisher 21-cm line width-absolute magnitude relation is made using Cepheid distances to…

天体物理学 · 物理学 2007-05-23 Allan Sandage , G. A. Tammann

This paper investigates the impact of Malmquist bias on the distance to the Virgo cluster determined by the H_0 Key Project using M100, and consequently on the derived value of H_0. Malmquist bias is a volume-induced statistical effect…

天体物理学 · 物理学 2009-10-30 Anthony H. Gonzalez , S. M. Faber

HST has so far provided Cepheid distances to nine galaxies. Although not sufficient yet to determine the distance of the extended Virgo cluster, they are decisive for the distance scale in two ways. (1) Seven of the galaxies contribute to a…

天体物理学 · 物理学 2016-08-30 G. A. Tammann , L. Labhardt , M. Federspiel , A. Sandage , A. Saha , F. D. Macchetto , N. Panagia

We present distance estimates for eleven peculiar Virgo cluster spiral galaxies based on measurements of the stellar kinematics of their central 2 kpc. Stellar circular velocities were obtained using two-integral dynamical models. Distances…

天体物理学 · 物理学 2009-11-13 Juan R. Cortes , Jeffrey D. P. Kenney , Eduardo Hardy

We have applied a relativistic Tolman-Bondi model of the Virgo cluster to a sample of 183 galaxies with measured distances within a radius of 8 degrees from M87. We find that the sample is significantly contaminated by background galaxies…

天体物理学 · 物理学 2009-11-06 Pascal Fouque , Jose M. Solanes , Teresa Sanchis , Chantal Balkowski

The distance to the centroid of the M31 globular cluster system is determined by fitting theoretical isochrones to the observed red-giant branches of fourteen globular clusters in M31. The mean true distance modulus of the M31 globular…

天体物理学 · 物理学 2009-10-30 Stephen Holland

Tip of the red giant branch distances are acquired from Hubble Space Telescope images for 16 galaxies to the foreground of the Virgo Cluster. The new distances with 5% accuracy, combined with archival measurements, tightly constrain the…

星系天体物理 · 物理学 2018-06-06 Igor D. Karachentsev , Lidia N. Makarova , R. Brent Tully , Luca Rizzi , Edward J. Shaya

We undertook a surface photometry survey of 200 galaxies in the Virgo cluster (complete to B<14.0 mag) carried out in the near-Infrared (NIR) H band. Combining velocity dispersion measurements from the literature with new spectroscopic data…

天体物理学 · 物理学 2009-10-31 G. Gavazzi , A. Boselli , M. Scodeggio , D. Pierini , E. Belsole

We consider the published distance moduli to the Fornax and Coma galaxy clusters, with emphasis on the period since 1990. We have carefully homogenized our catalogs of distance moduli onto the distance scale established in the previous…

星系天体物理 · 物理学 2020-05-06 Richard de Grijs , Giuseppe Bono

de Grijs and Bono compiled 211 independent measurements of the distance to galaxy M87 in the Virgo cluster from 15 different tracers and reported the arithmetic mean of a subset of this compilation as the best estimate of the distance. We…

宇宙学与河外天体物理 · 物理学 2024-03-06 Nicholas Rackers , Sofia Splawska , Bharat Ratra

The ACS Virgo Cluster Survey consists of HST ACS imaging for 100 early-type galaxies in the Virgo Cluster, observed in the F475W and F850LP filters. We derive distances for 84 of these galaxies using the method of surface brightness…

The most common methods to derive the distance to globular clusters using RR Lyrae variables are reviewed, with a special attention to those that have experienced significant improvement in the past few years. From the weighted average of…

天体物理学 · 物理学 2015-06-24 Carla Cacciari , Gisella Clementini

(Abridged) The distances and HI contents of 161 spiral galaxies in the region of Virgo cluster are used to gain insight into the complicated structure of this galaxy system. The 3D galaxy distribution has been inferred from quality distance…

天体物理学 · 物理学 2009-11-07 J. M. Solanes , T. Sanchis , E. Salvador-Sole , R. Giovanelli , M. P. Haynes

Aims. This work considers the Virgo cluster of galaxies, focusing on its structure, kinematics, and morphological landscape. Our principal aim is to estimate the virial mass of the cluster. For this purpose, we present a sample of 1537…

星系天体物理 · 物理学 2020-03-25 Olga G. Kashibadze , Igor D. Karachentsev , Valentina E. Karachentseva

We have established an internally consistent Local Group distance framework, using the Galactic Center, the Large Magellanic Cloud, and Messier 31 (M31) as important stepping stones. At greater distances, few distance benchmarks are…

星系天体物理 · 物理学 2020-01-08 Richard de Grijs , Giuseppe Bono

We collected data on radial velocities and distances of galaxies to elucidate structure and kinematics of the filament attached to the Virgo cluster from south. In the region RA = [12.5 - 13.5]h, Dec = [-20 - 0]deg there are 171 galaxies…

宇宙学与河外天体物理 · 物理学 2015-06-12 Igor D. Karachentsev , Olga G. Nasonova

A measurement of the distance to Virgo Cluster by a direct method along with a realistic error analysis is important for a reliable determination of the value of Hubble Constant. Cepheid variables in the face-on spiral M100 in the Virgo…

天体物理学 · 物理学 2007-05-23 D. Narasimha , Anwesh Mazumdar

We examine the velocity field of galaxies around the Virgo cluster induced by its overdensity. A sample of 1792 galaxies with distances from the Tip of the Red Giant Branch, the Cepheid luminosity, the SNIa luminosity, the surface…

宇宙学与河外天体物理 · 物理学 2015-05-18 I. D. Karachentsev , O. G. Nasonova
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