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相关论文: The Ursa Major Cluster of Galaxies. IV ; HI synthe…

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The Tully-Fisher relations for a complete sample of spirals in the Ursa Major cluster is investigated. The merits of combining B, R, I and K' photometry with HI rotation curves (RCs) have been exploited. In addition to the corrected HI…

天体物理学 · 物理学 2010-05-25 M. A. W. Verheijen

We present new magnitudes derived from 1.65 micron images for 23 galaxies in the Ursa Major cluster. Magnitudes now exist for all but one spiral meeting our criteria for cluster membership and having HI velocity width greater than 187 km/s…

天体物理学 · 物理学 2009-10-22 R. F. Peletier , S. P. Willner

We present results from 21 cm radio synthesis imaging of 28 spiral galaxies from the DiskMass Survey obtained with the VLA, WSRT, and GMRT facilities. We detail the observations and data reduction procedures and present a brief analysis of…

We observed star-forming galaxies at z~1.5 selected from the HyperSuprimeCam Subaru Strategic Program. The galaxies are part of two significant overdensities of [OII] emitters identified via narrow-band imaging and photometric redshifts…

星系天体物理 · 物理学 2020-01-22 A. Boehm , B. L. Ziegler , J. M. Perez-Martinez , T. Kodama , M. Hayashi , C. Maier , M. Verdugo , Y. Koyama

A survey of 329 nearby galaxies (redshift z < 0.045) has been conducted to study the distribution of mass and light within spiral galaxies over a range of environments. The 18 observed clusters and groups span a range of richness, density,…

天体物理学 · 物理学 2009-11-10 Nicole P. Vogt , Martha P. Haynes , Terry Herter , Riccardo Giovanelli

We determined the HI mass function of galaxies in the Ursa Major association of galaxies using a blind VLA-D array survey, consisting of 54 pointings in a cross pattern, covering the centre as well as the outskirts of the Ursa Major volume.…

星系天体物理 · 物理学 2020-12-08 E. Busekool , M. A. W. Verheijen , J. M. van der Hulst , R. B. Tully , N. Trentham , M. A. Zwaan

We present spatially-resolved HI kinematics of 32 spiral galaxies which have Cepheid or/and Tip of the Red Giant Branch distances, and define a calibrator sample for the Tully-Fisher relation. The interferometric HI data for this sample…

星系天体物理 · 物理学 2016-10-26 Anastasia A. Ponomareva , Marc A. W. Verheijen , Albert Bosma

The Ursa Major Cluster has received remarkably little attention, although it is as near as the Virgo Cluster and contains a comparable number of HI-rich galaxies. In this paper, criteria for group membership are discussed and data are…

We study the infrared (K_s band) properties of clusters of galaxies in the Ursa Major supercluster using data from 2MASS (Two-Micron All-Sky Survey) and SDSS (Sloan Digital Sky Survey). We identified three large filaments with mean…

天体物理学 · 物理学 2009-11-11 Flera Kopylova , Alexander Kopylov

We present first results from our project to examine the internal kinematics of disk galaxies in 7 rich clusters with 0.3<=z<0.6. Spatially resolved MOS spectra have been obtained with FORS at the VLT. We concentrate here on the clusters…

天体物理学 · 物理学 2007-05-23 B. L. Ziegler , A. Boehm , K. Jaeger , A. Fritz , J. Heidt

The Ursa Major Cluster appears to be unevolved and made up of HI-rich spiral galaxies. B,R,I,K' photometry has been obtained for 79 galaxies, including 62 in a complete sample with M(B)<-16.5 mag. The K' information is particularly…

天体物理学 · 物理学 2009-10-30 R. Brent Tully , Marc A. W. Verheijen

In this paper we present short HI synthesis observations of 57 galaxies without HI information in the RC3. These are a by-product of a large survey with the WSRT of the neutral hydrogen gas in spiral and irregular galaxies. Global profiles…

天体物理学 · 物理学 2007-05-23 J. J. Kamphuis , D. Sijbring , T. S. van Albada

We exploit the gravitational potential of massive cluster lenses to probe the emission line properties of six z=1 galaxies which appear as highly magnified luminous arcs. Using the GMOS integral field spectrograph together with detailed…

天体物理学 · 物理学 2009-11-11 M. Swinbank , R. Bower , G. P. Smith , Ian Smail , J. -P. Kneib , R. Ellis , D. Stark , A. Bunker

In this contribution, we present some preliminary observational results from the completed ultra-deep survey of 21cm emission from neutral hydrogen at redshifts z=0.164-0.224 with the Westerbork Synthesis Radio Telescope. In two separate…

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

Results are presented of a deep optical survey of the Ursa Major Cluster, a spiral-rich cluster of galaxies at a distance of 18.6 Mpc which contains about 30% of the light but only 5% of the mass of the nearby Virgo Cluster. Fields around…

天体物理学 · 物理学 2009-11-06 Neil Trentham , R. Brent Tully , Marc A. W. Verheijen

We present the distances of 9792 spiral galaxies lying within 15,000 km/s using the relation between luminosity and rotation rate of spiral galaxies. The sample is dominantly, but not exclusively, drawn from galaxies detected in the course…

We introduce our project on galaxy evolution in the environment of rich clusters aiming at disentangling the importance of specific interaction and galaxy transformation processes from the hierarchical evolution of galaxies in the field.…

天体物理学 · 物理学 2009-11-10 B. L. Ziegler , A. Böhm , K. Jäger , J. Heidt , C. Möllenhoff

Ultra-diffuse galaxies have generated significant interest due to their large optical extents and low optical surface brightnesses, which challenge galaxy formation models. Here we present resolved synthesis observations of 12 HI-bearing…

This study is a part of the Cosmicflows-4 project with the aim of measuring the distances of more than ~10,000 spiral galaxies in the local universe up to ~15,000 km/s. New HI linewidth information has come primarily from the Arecibo Legacy…

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