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3231. CONCH-SHELL catalog of nearby M dwarfs
ID:
ivo://CDS.VizieR/J/MNRAS/443/2561
Title:
CONCH-SHELL catalog of nearby M dwarfs
Short Name:
J/MNRAS/443/2561
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present an all-sky catalogue of 2970 nearby (d<~50pc), bright (J<9) M- or late K-type dwarf stars, 86% of which have been confirmed by spectroscopy. This catalogue will be useful for searches for Earth-size and possibly Earth-like planets by future space-based transit missions and ground-based infrared Doppler radial velocity surveys. Stars were selected from the SUPERBLINK proper motion catalogue (Cat. I/298) according to absolute magnitudes, spectra, or a combination of reduced proper motions and photometric colours. From our spectra, we determined gravity-sensitive indices, and identified and removed 0.2% of these as interloping hotter or evolved stars. 13% of the stars exhibit H{alpha} emission, an indication of stellar magnetic activity and possible youth. The mean metallicity is [Fe/H]=-0.07 with a standard deviation of 0.22dex, similar to nearby solar-type stars. We determined stellar effective temperatures by least-squares fitting of spectra to model predictions calibrated by fits to stars with established bolometric temperatures, and estimated radii, luminosities, and masses using empirical relations. 6% of stars with images from integral field spectra are resolved doubles. We inferred the planet population around M dwarfs using Kepler data and applied this to our catalogue to predict detections by future exoplanet surveys.
3232. CoNFIG AGN sample
ID:
ivo://CDS.VizieR/J/MNRAS/430/3086
Title:
CoNFIG AGN sample
Short Name:
J/MNRAS/430/3086
Date:
21 Oct 2021
Publisher:
CDS
Description:
The goal of this work is to determine the nature of the relation between morphology and accretion mode in radio galaxies, including environmental parameters. The CoNFIG extended catalogue (improved by new K_S_-band identifications and estimated redshifts from UKIRT Infrared Deep Sky Survey (UKIDSS), and spectral index measurements from new GMRT observations) is used to select a sub-sample of 206 radio galaxies with z<=0.3 over a wide range of radio luminosity, which are morphology-classified using the Fanaroff-Riley (FR) classification of extended radio sources. For each galaxy, spectroscopic data are retrieved to determine the high/low excitation status of the source, related to its accretion mode. Environmental factors, such as the host galaxy luminosity and a richness factor, are also computed, generally using the Sloan Digital Sky Survey data.
3233. Confirmed class 0 sources list
ID:
ivo://CDS.VizieR/J/ApJS/156/169
Title:
Confirmed class 0 sources list
Short Name:
J/ApJS/156/169
Date:
21 Oct 2021
Publisher:
CDS
Description:
We searched the literature to obtain a complete list of known Class 0 sources. A list of 95 confirmed or candidate objects was compiled. To the best of our knowledge, all published broadband observations from 1{mu}m to 3.5mm have been collected and are assembled in a catalog. These data were used to determine physical properties (T_bol_, L_bol_, L_smm_/L_bol_, M_env_) and for a uniform classification. Fifty sources possess sufficient observational data and are classified as Class 0 or Class 0/1 objects. The source properties are compared with different evolutionary models to infer ages and masses, and their correlations are investigated. About 25% of the sources are found to be in a quiet accretion phase or possess a significantly different time evolution of the accretion rate than the average. In Taurus, with its isolated star formation mode, this seems especially to be the case.
3234. Confirmed Corot exoplanets IDOC D2S ConeSearch
ID:
ivo://idoc.d2s/corot/stars-rotation-period-medeiros-conesearch
Title:
Confirmed Corot exoplanets IDOC D2S ConeSearch
Short Name:
CoRoT_N2_RotMed
Date:
13 May 2019 17:28:13
Publisher:
IDOC D2S
Description:
Stars with rotation periods from de Medeiros et al
3235. Confirmed Corot exoplanets IDOC D2S ConeSearch
ID:
ivo://idoc.d2s/corot/confirmedplanet-conesearch
Title:
Confirmed Corot exoplanets IDOC D2S ConeSearch
Short Name:
CoRoT_N2_ConfExo
Date:
13 May 2019 17:26:07
Publisher:
IDOC D2S
Description:
This catalog includes the CoRoT targets around which the presence of an exoplanet was confirmed and published. It does not include the more numerous planet candidates.
3236. Confirmed members of nearby young moving groups
ID:
ivo://CDS.VizieR/J/AJ/158/187
Title:
Confirmed members of nearby young moving groups
Short Name:
J/AJ/158/187
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present the first statistical analysis of exoplanet direct imaging surveys combining adaptive optics (AO) imaging at small separations with deep seeing-limited observations at large separations allowing us to study the entire orbital separation domain from 5 to 5000 au simultaneously. Our sample of 344 stars includes only confirmed members of nearby young associations and is based on all AO direct-imaging detection limits readily available online, with addition of our own previous seeing-limited surveys. Assuming that the companion distribution in mass and a semimajor axis follows a power-law distribution and adding a dependence on the mass of the host star, such as d^2^{prop.to}fM^{alpha}^a^{beta}^(M_*_/M_{sun}_)^{gamma}^dMda, we constrain the parameters to obtain {alpha}=-0.18_-0.65_^+0.77^, {beta}=-1.43_-0.24_^+0.23^, and {gamma}=0.62_-0.50_^+0.56^ at a 68% confidence level, and we obtain f=0.11_-0.05_^+0.11^ for the overall planet occurrence rate for companions with masses between 1 and 20 M_Jup_ in the range of 5-5000 au. Thus, we find that occurrence of companions is negatively correlated with a semimajor axis and companion mass (marginally) but is positively correlated with the stellar host mass. Our inferred mass distribution is in good agreement with other distributions found previously from direct imaging surveys for planets and brown dwarfs, but is shallower as a function of mass than the distributions inferred by radial velocity surveys of gas giants in the 1-3 au range. This may suggest that planets at these wide and very wide separations represent the low-mass tail of the brown dwarfs and stellar companion distribution rather than an extension of the distribution of the inner planets.
3237. Confirmed members of RX J0152.7-1357
ID:
ivo://CDS.VizieR/J/ApJ/725/1252
Title:
Confirmed members of RX J0152.7-1357
Short Name:
J/ApJ/725/1252
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a spectrophotometric analysis of galaxies belonging to the dynamically young, massive cluster RX J0152.7-1357 at z~0.84, aimed at understanding the effects of the cluster environment on the star formation history (SFH) of cluster galaxies and the assembly of the red sequence (RS). We use VLT/FORS spectroscopy, ACS/WFC optical, and NTT/SofI near-IR data to characterize SFHs as a function of color, luminosity, morphology, stellar mass, and local environment from a sample of 134 spectroscopic members. In order to increase the signal-to-noise ratio, individual galaxy spectra are stacked according to these properties. Moreover, the D4000, Balmer, CN3883, Fe4383, and C4668 indices are also quantified.
3238. Confirmed PN in M87 outer regions
ID:
ivo://CDS.VizieR/J/A+A/620/A111
Title:
Confirmed PN in M87 outer regions
Short Name:
J/A+A/620/A111
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a kinematic study of a sample of 298 planetary nebulas (PNs) in the outer halo of the central Virgo galaxy M87 (NGC 4486). The line-of-sight velocities of these PNs are used to identify sub-components, to measure the angular momentum content of the main M87 halo, and to constrain the orbital distribution of the stars at these large radii. We use Gaussian mixture modelling to statistically separate distinct velocity components and identify the M87 smooth halo component, its unrelaxed substructures, and the intra-cluster (IC) PNs. We compute probability weighted velocity and velocity dispersion maps for the smooth halo, and its specific angular momentum profile ({lambda}_R_) and velocity dispersion profile. The classification of the PNs into smooth halo and ICPNs is supported by their different PN luminosity functions. Based on a K-S test, we conclude that the ICPN line-of-sight velocity distribution (LOSVD) is consistent with the LOSVD of the galaxies in Virgo subcluster A. The surface density profile of the ICPNS at 100kpc radii has a shallow logarithmic slope, -{alpha}_ICL_~=-0.8, dominating the light at the largest radii. Previous B-V colour and resolved star metallicity data indicate masses for the ICPN progenitor galaxies of a few x10^8^M_{sun}_. The angular momentum-related {lambda}_R_ profile for the smooth halo remains below 0.1, in the slow rotator regime, out to 135kpc average ellipse radius (170kpc major axis distance). Combining the PN velocity dispersion measurements for the M87 halo with literature data in the central 15kpc, we obtain a complete velocity dispersion profile out to R_avg_=135kpc. The {sigma}_halo_ profile decreases from the central 400km/s to about 270km/s at 2-10kpc, then rises again to ~=300+/-50km/s at 50-70kpc to finally decrease sharply to {sigma}_halo_~100km/s at R_avg_=135kpc. The steeply decreasing outer {sigma}_halo_ profile and the surface density profile of the smooth halo can be reconciled with the circular velocity curve inferred from assuming hydrostatic equilibrium for the hot X-ray gas. Because this rises to v_c,X_~700km/s at 200kpc, the orbit distribution of the smooth M87 halo is required to change strongly from approximately isotropic within R_avg_~60kpc to very radially anisotropic at the largest distances probed. The extended LOSVD of the PNs in the M87 halo allows the identification of several subcomponents: the ICPNs, the "crown" accretion event, and the smooth M87 halo. In galaxies likeM87, the presence of these sub-components needs to be taken into account to avoid systematic biases in estimating the total enclosed mass. The dynamical structure inferred from the velocity dispersion profile indicates that the smooth halo of M87 steepens beyond Ravg=60kpc and becomes strongly radially anisotropic, and that the velocity dispersion profile is consistent with the X-ray circular velocity curve at these radii without non-thermal pressure effects.
3239. Constellation Boundary Data
ID:
ivo://CDS.VizieR/VI/49
Title:
Constellation Boundary Data
Short Name:
VI/49
Date:
21 Oct 2021
Publisher:
CDS
Description:
A computer readable catalog of constellation boundary data is presented in a form suitable for the construction of star charts and atlases. Two data files are available, one for equator and equinox 1875 and the other for equator and equinox 2000. In addition to the data files a documentation file is available that includes a table listing the abbreviations used for the constellations as well as a more detailed discussion of the preparation of the catalog. The present catalog of constellation boundary data is complementary to that of Roman (1987). Roman's catalog should be used to determine in which constellation an object lies in. The present catalog is more suited to the construction of star charts and atlases. Both catalogs were based on Delporte (1930).
3240. Constellations as Polygons
ID:
ivo://org.gavo.dc/cstl/q/cone
Title:
Constellations as Polygons
Short Name:
cstl cone
Date:
27 Dec 2024 08:31:13
Publisher:
The GAVO DC team
Description:
This cone search will return all constellations within the cone, together with the J2000 polygons of them.

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