- ID:
- ivo://CDS.VizieR/J/ApJS/97/77
- Title:
- Catalog of Coma Cluster Galaxies
- Short Name:
- J/ApJS/97/77
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- A homogeneous photometry catalog is presented for 450 galaxies with B25.5 <= 16 mag located in the 9.8 x 9.8 deg region centred on the Coma Cluster. The catalog is based on photographic photometry using an automated surface photometry software for data reduction applied to B-band Schmidt plates. The catalog provides accurate positions, isophotal and total magnitudes, major and minor axes, and a few other photometric parameters including rudimentary morphology (early or late type).
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- ID:
- ivo://CDS.VizieR/J/AJ/130/425
- Title:
- Catalog of distant compact groups of galaxies
- Short Name:
- J/AJ/130/425
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- In this paper we present an objectively defined catalog of 459 small, high-density groups of galaxies out to z~0.2 in a region of ~6260deg^2^ in the northern sky derived from the Digitized Second Palomar Observatory Sky Survey. Our catalog extends down to r=19.0 and has a median redshift of z_med_=0.12, making it complementary to Hickson's catalog (Cat. <VII/213>) for the nearby universe (z_med_=0.03).
- ID:
- ivo://CDS.VizieR/J/ApJ/306/30
- Title:
- Catalog of distant galaxy clusters
- Short Name:
- J/ApJ/306/30
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- A photographic survey for faint galaxies has been carried out with fine-grained photographic emulsions using the 1.2m Schmidt and 5m Hale telescopes, as well as the 4m Mayall telescope. A total of 418 clusters have been found with redshifts mostly in the range from 0.15 to 0.92. The survey was planned to minimize distance-dependent selection effects in the resulting catalog. In areas of sky where the deepest search was made, the sample is complete to about z=0.50; there are 11 clusters per square degree at this limit. At a redshift of 1.0 there should be 63 or 45 clusters per square degree depending on whether q_0_ is 0.0 or 0.5, provided there is no evolution.
- ID:
- ivo://CDS.VizieR/J/ApJ/627/621
- Title:
- Catalog of Extremely Red Objects
- Short Name:
- J/ApJ/627/621
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We use a serendipitously discovered overdensity of extremely red objects (EROs) to study the morphologies and cumulative surface number density of EROs in a dense environment. Our extremely deep imaging allows us to select very faint EROs, reaching K_S_=21, or ~2mag fainter than the L* of passively evolving ellipticals at z=1.5.
- ID:
- ivo://CDS.VizieR/J/AZh/87/795
- Title:
- Catalog of galaxies in and around A1367
- Short Name:
- J/AZh/87/795
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a catalog of galaxies in and around the cluster A1367, together with the results of a spectroscopic study of eight faint galaxies projected onto the central part of the cluster. The observations were carried out with the Boller and Chivens spectrograph of the 2m telescope of the Guillermo Haro Observatory (Cananea, Mexico). Redshifts of eight galaxies were derived from both emission and absorption lines; the redshift for one of these, derived from Halpha, SII, OIII, and Hbeta emission lines, is z=0.015. The spectrum of this galaxy displays no absorption lines at z=0.026, testifying that it is located between the observer and A1367.
- ID:
- ivo://CDS.VizieR/J/ApJ/751/50
- Title:
- Catalog of galaxy groups from DEEP2 Redshift Survey
- Short Name:
- J/ApJ/751/50
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a public catalog of galaxy groups constructed from the spectroscopic sample of galaxies in the fourth data release from the Deep Extragalactic Evolutionary Probe 2 (DEEP2) Galaxy Redshift Survey, including the Extended Groth Strip (EGS). The catalog contains 1165 groups with two or more members in the EGS over the redshift range 0<z<1.5 and 1295 groups at z>0.6 in the rest of DEEP2. 25% of EGS galaxies and 14% of high-z DEEP2 galaxies are assigned to galaxy groups. The groups were detected using the Voronoi-Delaunay method (VDM) after it has been optimized on mock DEEP2 catalogs following similar methods to those employed in Gerke et al (2005, J/ApJ/625/6). In the optimization effort, we have taken particular care to ensure that the mock catalogs resemble the data as closely as possible, and we have fine-tuned our methods separately on mocks constructed for the EGS and the rest of DEEP2. We have also probed the effect of the assumed cosmology on our inferred group-finding efficiency by performing our optimization on three different mock catalogs with different background cosmologies, finding large differences in the group-finding success we can achieve for these different mocks. Using the mock catalog whose background cosmology is most consistent with current data, we estimate that the DEEP2 group catalog is 72% complete and 61% pure (74% and 67% for the EGS) and that the group finder correctly classifies 70% of galaxies that truly belong to groups, with an additional 46% of interloper galaxies contaminating the catalog (66% and 43% for the EGS). We also confirm that the VDM catalog reconstructs the abundance of galaxy groups with velocity dispersions above ~300 km/s to an accuracy better than the sample variance, and this successful reconstruction is not strongly dependent on cosmology.
- ID:
- ivo://CDS.VizieR/J/ApJS/157/228
- Title:
- Catalog of galaxy morphology in four clusters
- Short Name:
- J/ApJS/157/228
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Hubble Space Telescope (HST) imaging of four rich, X-ray-luminous, galaxy clusters (0.33<z<0.83) is used to produce quantitative morphological measurements for galaxies in their fields. Catalogs of these measurements are presented for 1642 galaxies brighter than F814W(AB)=23.0. Galaxy luminosity profiles are fitted with three models: exponential disk, de Vaucouleurs bulge, and a disk-plus-bulge hybrid model. The best fit is selected and produces a quantitative assessment of the morphology of each galaxy: the principal parameters derived being B/T, the ratio of bulge to total luminosity, the scale lengths and half-light radii, axial ratios, position angles, and surface brightnesses of each component. Cluster membership is determined using a statistical correction for field galaxy contamination, and a mass normalization factor (mass within boundaries of the observed fields) is derived for each cluster. Morphological classes are defined using B/T: disk galaxies have 0<=B/T<=0.4, intermediate galaxies 0.4<B/T<0.8, and bulge-dominated galaxies have 0.8<=B/T<=1.
- ID:
- ivo://CDS.VizieR/J/other/JAD/12.1
- Title:
- Catalog of galaxy structures based on the MRSS
- Short Name:
- J/other/JAD/12.1
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a catalogue of galaxy structures (groups and clusters) found in an area of 5000 square degrees in the southern hemisphere. The catalogue, which we call the PF Catalogue, was created by making use of galaxy positions and magnitudes given in the Muenster Red Sky Survey (MRSS, 2003JAD.....9....1U). We applied an automated procedure for structure finding, involving the Voronoi tessellation. The completeness limit for galaxies in the MRSS is r_F_=18.3m. Therefore, the present version of the PF Catalogue is based on galaxies brighter than this limit. In order to be included in the PF Catalogue, a structure must have at least 10 members in a magnitude range m_3_, m_3_+3^m^. We found 6188 structures which are listed in the present catalogue. The PF Catalogue contains positions, radii, areas, number of galaxies within the magnitude limit m_3_, m_3_+3^m^, a number estimation of background galaxies; ellipticity and position angle for each structure, as well as the magnitudes of the first, the third and the tenth galaxies in a structure, taken from the MRSS.
- ID:
- ivo://CDS.VizieR/J/AJ/147/106
- Title:
- Catalog of member galaxies in A2319
- Short Name:
- J/AJ/147/106
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Asymmetric X-ray emission and a powerful cluster-scale radio halo indicate that A2319 is a merging cluster of galaxies. This paper presents our multicolor photometry for A2319 with 15 optical intermediate filters in the Beijing-Arizona-Taiwan-Connecticut (BATC) system. There are 142 galaxies with known spectroscopic redshifts within the viewing field of 58'x58' centered on this rich cluster, including 128 member galaxies (called sample I). A large velocity dispersion in the rest frame, 1622_-70_^+91^km/s, suggests merger dynamics in A2319. The contour map of projected density and localized velocity structure confirm the so-called A2319B substructure, at ~10' northwest to the main concentration A2319A. The spectral energy distributions (SEDs) of more than 30000 sources are obtained in our BATC photometry down to V~20mag. A u-band (~3551{AA}) image with better seeing and spatial resolution, obtained with the Bok 2.3m telescope at Kitt Peak, is taken to make star-galaxy separation and distinguish the overlapping contamination in the BATC aperture photometry. With color-color diagrams and photometric redshift technique, 233 galaxies brighter than h_BATC_=19.0 are newly selected as member candidates after an exclusion of false candidates with contaminated BATC SEDs by eyeball-checking the u-band Bok image. The early-type galaxies are found to follow a tight color-magnitude correlation. Based on sample I and the enlarged sample of member galaxies (called sample II), subcluster A2319B is confirmed. The star formation properties of cluster galaxies are derived with the evolutionary synthesis model, PEGASE, assuming a Salpeter initial mass function and an exponentially decreasing star formation rate (SFR). A strong environmental effect on star formation histories is found in the manner that galaxies in the sparse regions have various star formation histories, while galaxies in the dense regions are found to have shorter SFR time scales, older stellar ages, and higher interstellar medium metallicities. For the merging cluster A2319, local surface density is a better environmental indicator rather than the cluster-centric distance. Compared with the well-relaxed cluster A2589, a higher fraction of star-forming galaxies is found in A2319, indicating that the galaxy-scale turbulence stimulated by the subcluster merger might have played a role in triggering the star formation activity.
- ID:
- ivo://CDS.VizieR/J/ApJ/619/193
- Title:
- Catalog of nearby cluster galaxy photometry
- Short Name:
- J/ApJ/619/193
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- We present a detailed (U-V) color-magnitude relation (CMR) analysis for three local (z<0.06) clusters of galaxies. From square-degree imaging of the Abell clusters A85, A496, and A754, we select 637 galaxies down to L~0.1L_V_^*^ with spectroscopic membership, which minimizes uncertain field contamination corrections.
