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171. Combined astrometric catalogue EOC-3
ID:
ivo://CDS.VizieR/J/A+A/463/783
Title:
Combined astrometric catalogue EOC-3
Short Name:
J/A+A/463/783
Date:
21 Oct 2021
Publisher:
CDS
Description:
In the past, we collected the astrometric observations of latitude/universal time variations made worldwide at 33 observatories. These observations, referred to Hipparcos Catalogue, were then used to determine the Earth Orientation Parameters (EOP) at 5-day intervals, covering the interval 1899.7-1992.0. Later on, new astrometric catalogues (such as ARHIP or TYCHO-2) appeared as combination of Hipparcos/Tycho positions with ground-based catalogues. These catalogues yield more accurate proper motions than the original Hipparcos Catalogue. Many of the objects observed in the programmes of monitoring Earth orientation from the ground are double or multiple systems, having non-negligible periodic motions. We aim at obtaining a star catalogue with improved proper motions and quasi-periodic terms reflecting orbital motions of the stars observed in these programmes. We used about 4.5 million observations of latitude/universal time variations, and combined them with the catalogues ARIHIP, TYCHO-2 etc... in order to obtain Earth Orientation Catalogue (EOC). Spectral analysis of ground-based data is made in order to discover which of the observed objects display periodic motions, and the method of least squares is then used to estimate corresponding amplitudes and phases. The third version of the catalogue, EOC-3, contains 4418 different objects (i.e., stars, components of double stars, photocenters). Our attempt leads to a description of more accurate paths of the observed objects that will be eventually used for another determination of the Earth Orientation Parameters in the twentieth century.
172. Compact Binary Coalescence Galaxy Catalog
ID:
ivo://CDS.VizieR/J/ApJ/675/1459
Title:
Compact Binary Coalescence Galaxy Catalog
Short Name:
J/ApJ/675/1459
Date:
21 Oct 2021
Publisher:
CDS
Description:
An up-to-date catalog of nearby galaxies considered to be hosts of binary compact objects is provided, with complete information about sky position, distance, extinction-corrected blue luminosity, and error estimates. With our current understanding of binary evolution, rates of formation and coalescence for binary compact objects scale with massive-star formation, and hence the (extinction-corrected) blue luminosity of host galaxies. Coalescence events in binary compact objects are among the most promising gravitational-wave sources for ground-based gravitational-wave detectors such as LIGO. Our catalog and associated error estimates are important for the interpretation of analyses carried out for LIGO, in constraining the rates of compact binary coalescence, given an astrophysical population model for the sources considered.
173. Compact Groups in the UZC galaxy sample
ID:
ivo://CDS.VizieR/J/A+A/391/35
Title:
Compact Groups in the UZC galaxy sample
Short Name:
J/A+A/391/35
Date:
21 Oct 2021
Publisher:
CDS
Description:
Applying an automatic neighbour search algorithm to the 3D UZC galaxy catalogue (Falco et al., 1999, Cat. <J/PASP/111/438>) we have identified 291 compact groups (CGs) with radial velocity between 1000 and 10000km/s. The sample is analysed to investigate whether Triplets display kinematical and morphological characteristics similar to higher order CGs (Multiplets). It is found that Triplets constitute low velocity dispersion structures, have a gas-rich galaxy population and are typically retrieved in sparse environments. Conversely Multiplets show higher velocity dispersion, include few gas-rich members and are generally embedded structures. Evidence hence emerges indicating that Triplets and Multiplets, though sharing a common scale, correspond to different galaxy systems. Triplets are typically field structures whilst Multiplets are mainly subclumps (either temporarily projected or collapsing) within larger structures. Simulations show that selection effects can only partially account for differences, but significant contamination of Triplets by field galaxy interlopers could eventually induce the observed dependences on multiplicity.
174. Compact groups of compact galaxies
ID:
ivo://CDS.VizieR/VII/89B
Title:
Compact groups of compact galaxies
Short Name:
VII/89B
Date:
21 Oct 2021
Publisher:
CDS
Description:
The catalog is a compilation of ten published lists of compact groups of compact galaxies found on the Palomar Sky Survey red charts. The catalog contains 377 groups of compact galaxies and includes identifications, equatorial coordinates, numbers of constituent galaxies, magnitudes of the brightest member, sizes of the groups as a whole, and coefficients of relative compactness.
175. Compact Groups of galaxies from 2MASX
ID:
ivo://CDS.VizieR/J/MNRAS/426/296
Title:
Compact Groups of galaxies from 2MASX
Short Name:
J/MNRAS/426/296
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a photometric catalogue of compact groups of galaxies (p2MCGs) automatically extracted from the Two-Micron All Sky Survey (2MASS) extended source catalogue. A total of 262 p2MCGs are identified, following the criteria defined by Hickson, of which 230 survive visual inspection (given occasional galaxy fragmentation and blends in the 2MASS parent catalogue). Only one quarter of these 230 groups were previously known compact groups (CGs). Among the 144 p2MCGs that have all their galaxies with known redshifts, 85 (59%) have four or more accordant galaxies. This v2MCG sample of velocity-filtered p2MCGs constitutes the largest sample of CGs (with N>=4) catalogued to date, with both well-defined selection criteria and velocity filtering, and is the first CG sample selected by stellar mass. It is fairly complete up to K_group_~9 and radial velocity of ~6000km/s.
176. Compact groups of galaxies in LCRS
ID:
ivo://CDS.VizieR/J/AN/321/101
Title:
Compact groups of galaxies in LCRS
Short Name:
J/AN/321/101
Date:
21 Oct 2021
Publisher:
CDS
Description:
We have recently extracted a catalog of compact groups of galaxies (CGs) from the Las Campanas Redshift Survey. This catalog of Las Campanas Compact Groups (LCCGs) contains 76 CGs with a median redshift of z_med_~0.08. The physical properties of these CGs are similar to those form Hickson (1982, Cat. <VII/213>) and the Barton et al. (1996AJ....112..871B) catalogs. Here, we present an atlas of our catalog and briefly describe its general properties.
177. Compact variable radio sources at 151MHz. I.
ID:
ivo://CDS.VizieR/J/MNRAS/315/839
Title:
Compact variable radio sources at 151MHz. I.
Short Name:
J/MNRAS/315/839
Date:
21 Oct 2021
Publisher:
CDS
Description:
The Cambridge Low-Frequency Synthesis Telescope has been used to produce a representative sample of low-frequency variable sources. 20 fields, each covering an area of approximately 9{deg}x9{deg}cosecDE, have been observed at 151MHz at between 2 and 10 epochs over the period from 1984 to 1996. At each epoch, maps were made with rms noise levels of typically 10^-15^mJy/beam. From a total of ~6000 sources detected on these maps, 207 are found for which the flux density variations between at least two epochs appear significant at greater than the 3{sigma} level. A numerical model is used to assess the true significance of the variability, given the analysis method adopted. This shows that for about half of the sources which appear to vary by >3{sigma} the variability is genuine. For the other half it is caused by random statistical fluctuations; most of the spurious variables vary by <=3.5{sigma} between a single pair of epochs. A catalogue of the variable sources is presented, which includes an estimate of the probability that a given source is a genuine variable. Fractional flux density variations of between 5 and 100% (typically 15-25%) have been detected on a range of time-scales from 1 to 12 years.
178. ComPRASS catalogue
ID:
ivo://CDS.VizieR/J/A+A/626/A7
Title:
ComPRASS catalogue
Short Name:
J/A+A/626/A7
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present the first all-sky catalogue of galaxy clusters and cluster candidates obtained from joint X-ray-SZ detections using observations from the Planck satellite and the ROSAT all-sky survey (RASS). The catalogue contains 2323 objects and has been validated by careful cross-identification with previously known clusters. This validation shows that 1597 candidates correspond to already known clusters, 212 coincide with other cluster candidates still to be confirmed, and the remaining 514 are completely new detections. With respect to Planck catalogues, the ComPRASS catalogue is simultaneously more pure and more complete. Based on the validation results in the SPT and SDSS footprints, the expected purity of the catalogue is at least 84.5%, meaning that more than 365 clusters are expected to be found among the new or still-to-be-confirmed candidates with future validation efforts or specific follow-ups.
179. Continuous rise of bulges out of galactic disks
ID:
ivo://CDS.VizieR/J/A+A/614/A48
Title:
Continuous rise of bulges out of galactic disks
Short Name:
J/A+A/614/A48
Date:
21 Oct 2021
Publisher:
CDS
Description:
A key subject in extragalactic astronomy concerns the chronology and driving mechanisms of bulge formation in late-type galaxies (LTGs). The standard scenario distinguishes between classical bulges and pseudo-bulges (CBs and PBs, respectively), the first thought to form monolithically prior to disks and the second gradually out of disks. These two bulge formation routes obviously yield antipodal predictions on the bulge age and bulge-to-disk age contrast, both expected to be high (low) in CBs (PBs). Our main goal is to explore whether bulges in present-day LTGs segregate into two evolutionary distinct classes, as expected from the standard scenario. Other questions motivating this study center on evolutionary relations between LTG bulges and their hosting disks, and the occurrence of accretion-powered nuclear activity as a function of bulge stellar mass M* and stellar surface density {Sigma}*. In this study we have combined three techniques - surface photometry, spectral modeling of integral field spectroscopy data and suppression of stellar populations younger than an adjustable age cutoff with the code REMOVE YOUNG (RY) - toward a systematic analysis of the physical and evolutionary properties (e.g., M* , {Sigma}* and mass-weighted stellar age <t*>_M_ and metallicity <Z*>_M_, respectively) of a representative sample of 135 nearby (<=130Mpc) LTGs from the CALIFA survey that cover a range between 10^8.9^M_{sun}_ and 10^11.5^M_{sun}_ in total stellar mass M_*,T_. In particular, the analysis here revolves around <{delta}{mu}9G>, a new distance- and formally extinction-independent measure of the contribution by stellar populations of age >=9Gyr to the mean r-band surface brightness of the bulge. We argue that <{delta}{mu}9Gx > offers a handy semi-empirical tracer of the physical and evolutionary properties of LTG bulges and a promising means for their characterization.
180. CO Observations of Galaxies
ID:
ivo://CDS.VizieR/VII/64
Title:
CO Observations of Galaxies
Short Name:
VII/64
Date:
21 Oct 2021
Publisher:
CDS
Description:
The catalog is a complete summary of all observations of CO isotopes in galaxies up to spring 1984. It consists of seven tables. Refs.dat describes the reference for CO observations of galaxies. Telescop.dat describes the properties of the telescopes used for observations. Detect.dat and uprlmits.dat contain a compilation of data on galaxies that have been observed in CO. Most of the characteristics listed here are observed properties. The detected galaxies are listed first, followed by galaxies with upper limits. Upper limits are given for detected galaxies if the detection is disputed or if the limits refer to transitions or regions that have not yet been detected. Temp.dat is a comparison of the antenna temperature scales used in the references in this catalog. Maps.dat lists the coverage, resolution, observed structure of CO maps of galaxies, and notes.dat contains notes to tables.

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