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221. Cross section values TAP service
ID:
ivo://spectrum.iaa/tap
Title:
Cross section values TAP service
Short Name:
IAA and CAB TAP
Date:
03 Apr 2016 18:56:07
Publisher:
Instituto de Astrofisica de Andalucia-CSIC; INTA-CAB
Description:
The Cross section values's TAP end point. The Table Access Protocol (TAP) lets you execute queries against our database tables, inspect various metadata, and upload your own data. It is thus the VO's premier way to access public data holdings. Tables exposed through this endpoint include: columns, groups, key_columns, keys, schemas, tables from the tap_schema schema, emptyobscore, obscore from the ivoa schema, epn_core from the abs_cs schema.
222. C3R2 survey: high-confidence redshifts from DR1
ID:
ivo://CDS.VizieR/J/ApJ/841/111
Title:
C3R2 survey: high-confidence redshifts from DR1
Short Name:
J/ApJ/841/111
Date:
21 Oct 2021
Publisher:
CDS
Description:
A key goal of the Stage IV dark energy experiments Euclid, LSST, and WFIRST is to measure the growth of structure with cosmic time from weak lensing analysis over large regions of the sky. Weak lensing cosmology will be challenging: in addition to highly accurate galaxy shape measurements, statistically robust and accurate photometric redshift (photo-z) estimates for billions of faint galaxies will be needed in order to reconstruct the three-dimensional matter distribution. Here we present an overview of and initial results from the Complete Calibration of the Color-Redshift Relation (C3R2) survey, which is designed specifically to calibrate the empirical galaxy color-redshift relation to the Euclid depth. These redshifts will also be important for the calibrations of LSST and WFIRST. The C3R2 survey is obtaining multiplexed observations with Keck (DEIMOS, LRIS, and MOSFIRE), the Gran Telescopio Canarias (GTC; OSIRIS), and the Very Large Telescope (VLT; FORS2 and KMOS) of a targeted sample of galaxies that are most important for the redshift calibration. We focus spectroscopic efforts on undersampled regions of galaxy color space identified in previous work in order to minimize the number of spectroscopic redshifts needed to map the color-redshift relation to the required accuracy. We present the C3R2 survey strategy and initial results, including the 1283 high-confidence redshifts obtained in the 2016A semester and released as Data Release 1.
223. Cusp radius in luminous elliptical galaxies
ID:
ivo://CDS.VizieR/J/ApJ/662/808
Title:
Cusp radius in luminous elliptical galaxies
Short Name:
J/ApJ/662/808
Date:
21 Oct 2021
Publisher:
CDS
Description:
Black hole (BH) masses predicted from the M_BH_-sigma relationship conflict with predictions from the M_BH_-L relationship for high-luminosity galaxies, such as brightest cluster galaxies (BCGs). The M_BH_-L relationship predicts that some BCGs may harbor BHs with M_BH_ approaching 10^10^M_{sun}_ while the M_BH_-sigma relationship always predicts M_BH_<3x10^9^M_{sun}_. We argue that the M_BH_-L relationship is a plausible description for galaxies of high luminosity. If the cores in central stellar density are formed by binary BHs, the inner core cusp radius, r{gamma}, may be an independent witness of M_BH_. Using central structural parameters derived from a large sample of early-type galaxies observed by HST, we argue that L is superior to sigma as an indicator of r{gamma}.
224. CVRHS classifications for 719 AMIGA galaxies
ID:
ivo://CDS.VizieR/J/MNRAS/488/2175
Title:
CVRHS classifications for 719 AMIGA galaxies
Short Name:
J/MNRAS/488/2175
Date:
21 Oct 2021
Publisher:
CDS
Description:
Using images from Sloan Digital Sky Survey Data Release 8, we have re-examined the morphology of 719 galaxies from the Analysis of the interstellar Medium in Isolated GAlaxies (AMIGA) project, a sample consisting of the most isolated galaxies that have yet been identified. The goal is to further improve the classifications of these galaxies by examining them in the context of the Comprehensive de Vaucouleurs revised Hubble-Sandage (CVRHS) system, which includes recognition of features that go beyond the original de Vaucouleurs point of view. Our results confirm previous findings that isolated galaxies are found across the complete revised Hubble sequence, with intermediate to late-type (Sb-Sc) spirals being relatively more common. Elmegreen Arm Classifications are also presented, and show that more than 50\% of the 514 spirals in the sample for which an arm class could be judged are grand design (AC 8,9,12). The visual bar fraction for the sample is ~50%, but only 16% are classified as strongly-barred (SB). The dominant family classification is SA (nonbarred), the dominant inner variety classification is (s) (pure spiral), and the dominant outer variety classification is no outer ring, pseudoring, or lens. The Kolmogorov-Smirnov test is used to check for potential biases in the morphological interpretations, and for any possible relation between rings, bars, and arm classes with local environment and far-infrared excess. The connection between morphology and stellar mass is also examined for a subset of the sample.
225. CVRHS classifications for the EFIGI Galaxy Sample
ID:
ivo://CDS.VizieR/J/MNRAS/488/590
Title:
CVRHS classifications for the EFIGI Galaxy Sample
Short Name:
J/MNRAS/488/590
Date:
21 Oct 2021
Publisher:
CDS
Description:
This paper is the third which examines galaxy morphology from the point of view of comprehensive de Vaucouleurs revised Hubble-Sandage (CVRHS) classification, a variation on the original de Vaucouleurs classification volume that accounts for finer details of galactic structure, including lenses, nuclear structures, embedded disks, boxy and disky components, and other features. The classification is applied to the EFIGI sample, a well-defined set of nearby galaxies which were previously examined by Baillard et al. (2011, Cat. J/A+A/532/A74) and de Lapparent et al. (2011A&A...532A..75D). The survey is focussed on statistics of features, and brings attention to exceptional examples of some morphologies, such as skewed bars, blue bar ansae, bar-outer pseudoring misalignment, extremely elongated inner SB rings, outer rings and lenses, and other features that are likely relevant to galactic secular evolution and internal dynamics. The possibility of using these classifications as a training set for automated classification algorithms is also discussed.
226. CVRHS classifications for the GZ2 Ring Sample
ID:
ivo://CDS.VizieR/J/MNRAS/471/4027
Title:
CVRHS classifications for the GZ2 Ring Sample
Short Name:
J/MNRAS/471/4027
Date:
21 Oct 2021
Publisher:
CDS
Description:
Rings are important and characteristic features of disc-shaped galaxies. This paper is the first in a series that re-visits galactic rings with the goals of further understanding the nature of the features and for examining their role in the secular evolution of galaxy structure. The series begins with a new sample of 3962 galaxies drawn from the Galaxy Zoo 2 citizen science data base, selected because zoo volunteers recognized a ring-shaped pattern in the morphology as seen in Sloan Digital Sky Survey colour images. The galaxies are classified within the framework of the Comprehensive de Vaucouleurs revised Hubble-Sandage system. It is found that zoo volunteers cued on the same kinds of ring-like features that were recognized in the 1995 Catalogue of Southern Ringed Galaxies. This paper presents the full catalogue of morphological classifications, comparisons with other sources of classifications and some histograms designed mainly to highlight the content of the catalogue. The advantages of the sample are its large size and the generally good quality of the images; the main disadvantage is the low physical resolution that limits the detectability of linearly small rings such as nuclear rings. The catalogue includes mainly inner and outer disc rings and lenses. Cataclysmic ('encounter-driven') rings (such as ring and polar ring galaxies) are recognized in less than 1 per cent of the sample.
227. DaCHS Server for LMD TAP service
ID:
ivo://lmd.jussieu/tap
Title:
DaCHS Server for LMD TAP service
Short Name:
LMD TAP
Date:
02 Feb 2023 17:46:09
Publisher:
LMD
Description:
The DaCHS Server for LMD's TAP end point. The Table Access Protocol (TAP) lets you execute queries against our database tables, inspect various metadata, and upload your own data. It is thus the VO's premier way to access public data holdings. Tables exposed through this endpoint include: epn_core from the mars_dust schema, epn_core from the mcd schema, columns, groups, key_columns, keys, schemas, tables from the tap_schema schema, epn_core from the vcd schema.
228. Data Central SCS
ID:
ivo://purx/datacentral-scs
Title:
Data Central SCS
Short Name:
DCSCS
Date:
15 Jun 2021 11:47:41
Publisher:
Data Central
Description:
Data Central Simple Cone Search. Access Data Central and other catalogues.
229. Data on 1889 Abell's clusters of galaxies
ID:
ivo://CDS.VizieR/VII/87A
Title:
Data on 1889 Abell's clusters of galaxies
Short Name:
VII/87A
Date:
21 Oct 2021
Publisher:
CDS
Description:
A sample of 1889 clusters from Abell's catalogue of Rich Clusters of Galaxies (1958, ApJS 3, 211) have been classified in the Bautz-Morgan system
230. Data release 6 of Sloan Digital Sky Survey catalogs
ID:
ivo://astronet.ru/cas/sdssdr6-photoobjall
Title:
Data release 6 of Sloan Digital Sky Survey catalogs
Short Name:
sdssdr6-photoobj
Date:
17 Jun 2006 18:44:05
Publisher:
Sternberg Astronomical Institute Virtual Observatory Project
Description:

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