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1061. Catalogue of Seyfert Galaxies
ID:
ivo://CDS.VizieR/VII/173
Title:
Catalogue of Seyfert Galaxies
Short Name:
VII/173
Date:
21 Oct 2021
Publisher:
CDS
Description:
A list of 959 Seyfert galaxies whose data were obtained up to the beginning of 1987 is compiled. Coordinates, redshifts, UBVR-photoelectric magnitudes, absolute magnitudes, morphological types, fluxes in H and [OIII] 5007, JHKLN-fluxes, far-infrared (IRAS) fluxes, radio-fluxes at 6 and 11 centimeters, monochromatic X-ray fluxes in 0.3-3.5 and 2-10 keV and some other data are presented in six Tables. This Catalogue data may be used as basic ones for some statistical investigations. References contain 957 entries.
1062. Catalogue of stellar cluster properties in M83
ID:
ivo://CDS.VizieR/J/MNRAS/417/L6
Title:
Catalogue of stellar cluster properties in M83
Short Name:
J/MNRAS/417/L6
Date:
21 Oct 2021
Publisher:
CDS
Description:
We study the stellar cluster population in two adjacent fields in the nearby, face-on spiral galaxy, M83, using multi-wavelength WFC3/HST imaging. After automatic detection procedures, the clusters are selected through visual inspection to be centrally concentrated, symmetric, and resolved on the images, which allows us to differentiate between clusters and likely unbound associations. We compare our sample with previous studies and show that the differences between the catalogues are largely due to the inclusion of large numbers of diffuse associations within previous catalogues as well as the inclusion of the central starburst region, where the completeness limit is significantly worse than in the surrounding regions. We derive the size distribution of the clusters, which is well described by a log-normal distribution with a peak at ~2.5pc, and find evidence for an expansion in the half-light radius of clusters with age. The luminosity function of the clusters is well approximated by a power-law with index, -2, over most of the observed range, however a steepening is seen at M_V=-9.3 and -8.8 in the inner and outer fields, respectively. Additionally, we show that the cluster population is inconsistent with a pure power-law mass distribution, but instead exhibits a truncation at the high mass end. If described as a Schechter function, the characteristic mass is 1.6 and 0.5x10^5^M_{sun}_, for the inner and outer fields, respectively, in agreement with previous estimates of other cluster populations in spiral galaxies. Comparing the predictions of the mass independent disruption (MID) and mass dependent disruption (MDD) scenarios with the observed distributions, we find that both models can accurately fit the data. However, for the MID case, the fraction of clusters destroyed (or mass lost) per decade in age is dependent on the environment, hence, the age/mass distributions of clusters are not universal. In the MDD case, the disruption timescale scales with galactocentric distance (being longer in the outer regions of the galaxy) in agreement with analytic and numerical predictions. Finally, we discuss the implications of our results on other extragalactic surveys, focussing on the fraction of stars that form in clusters and the need (or lack thereof) for infant mortality.
1063. Catalogue of stellar UV fluxes (TD1)
ID:
ivo://CDS.VizieR/II/59B
Title:
Catalogue of stellar UV fluxes (TD1)
Short Name:
II/59B
Date:
21 Oct 2021
Publisher:
CDS
Description:
(no description available)
1065. Catalogue of UVBGRI measurements
ID:
ivo://CDS.VizieR/II/8
Title:
Catalogue of UVBGRI measurements
Short Name:
II/8
Date:
21 Oct 2021
Publisher:
CDS
Description:
This compilation contains the published results and the weighted means of the observations in the photoelectric photometric system described by Stebbins and Withford (1943). The six filters were selected to give nearly the same response in each of the six spectral regions for a solar-type star. The mean wavelengths or the filters are: ---------------------------------------------------- Filter U B V G R I Wavelength (nm) 353 422 488 570 719 1030 ---------------------------------------------------- The reduction of this system is made in order that (B+G+R) = 0.
1066. Catalogue of X-ray binaries
ID:
ivo://CDS.VizieR/V/106
Title:
Catalogue of X-ray binaries
Short Name:
V/106
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a catalogue of high-mass X-ray binaries. The catalogue is an updated version of the catalogue of van Paradijs (1995, Cat. <V/90>). The new high-mass catalogue contains 130 sources, 61 new high-mass X-ray binaries in addition to the 69 sources listed in van Paradijs' catalogue. Most of the new sources are identified to be Be/X-ray binaries. Some sources, however, are only tentatively identified as high-mass X-ray binaries on the basis of a transient character and/or a hard X-ray spectrum. Further identification in other wavelength bands is needed to finally determine the features of these sources. The new low-mass catalogue contains 150 sources, 31 new low-mass X-ray binaries in addition to the 119 sources listed in van Paradijs' catalogue. The aim of this catalogue is to provide the reader with some basic information on the X-ray sources and their counterparts in other wavelength ranges (UV, optical, IR, radio). In cases where there is some doubt about the high or low-mass nature of the X-ray binary this is mentioned. Some doubtful cases have not been included in the catalogue although they had been suggested by some authors to be high-mass X-ray binaries, for example GRS 1915+105 and 1WGA J1958.2+3232.
1067. Catalogues of variable AGNs
ID:
ivo://CDS.VizieR/J/A+A/584/A106
Title:
Catalogues of variable AGNs
Short Name:
J/A+A/584/A106
Date:
21 Oct 2021
Publisher:
CDS
Description:
Upcoming large area sky surveys like Euclid and eROSITA, which are dedicated to studying the role of dark energy in the expansion history of the Universe and the three-dimensional mass distribution of matter, crucially depend on accurate photometric redshifts. The identification of variable sources, such as active galactic nuclei (AGNs), and the achievable redshift accuracy for varying objects are important in view of the science goals of the Euclid and eROSITA missions. We probe AGN optical variability for a large sample of X-ray-selected AGNs in the XMM-COSMOS field, using the multi-epoch light curves provided by the Pan-STARRS1 (PS1) 3n and Medium Deep Field surveys. To quantify variability we employed a simple statistic to estimate the probability of variability and the normalized excess variance to measure the variability amplitude. Utilizing these two variability parameters, we defined a sample of varying AGNs for every PS1 band. We investigated the influence of variability on the calculation of photometric redshifts by applying three different input photometry sets for our fitting procedure. For each of the five PS1 bands g_P1_, r_P1_, i_P1_, z_P1_, and y_P1_, we chose either the epochs minimizing the interval in observing time, the median magnitude values, or randomly drawn light curve points to compute the redshift. In addition, we derived photometric redshifts using PS1 photometry extended by GALEX/IRAC bands.
1068. CaT in 903 globular clusters
ID:
ivo://CDS.VizieR/J/MNRAS/426/1475
Title:
CaT in 903 globular clusters
Short Name:
J/MNRAS/426/1475
Date:
21 Oct 2021
Publisher:
CDS
Description:
Although the colour distribution of globular clusters in massive galaxies is well known to be bimodal, the spectroscopic metallicity distribution has been measured in only a few galaxies. After redefining the calcium triplet index-metallicity relation, we use our relation to derive the metallicity of 903 globular clusters in 11 early-type galaxies. This is the largest sample of spectroscopic globular cluster metallicities yet assembled. We compare these metallicities with those derived from Lick indices finding good agreement. In six of the eight galaxies with sufficient numbers of high-quality spectra we find bimodality in the spectroscopic metallicity distribution. Our results imply that most massive early-type galaxies have bimodal metallicity as well as colour distributions. This bimodality suggests that most massive early-type galaxies experienced two periods of star formation.
1069. Cat of Stellar Lyman-Alpha Fluxes
ID:
ivo://CDS.VizieR/J/ApJ/408/305
Title:
Cat of Stellar Lyman-Alpha Fluxes
Short Name:
J/ApJ/408/305
Date:
21 Oct 2021
Publisher:
CDS
Description:
The data file gives the measured Lyman alpha flux or upper limits for 275 stars as derived from IUE spectra. The file is a subset of Table 1 of Landsman and Simon in that when a star had multiple measurements, only the best measurement is included in this table. The spectral types, V and B-V magnitudes in the table are culled from various sources as described in the paper. Most of the measurements are derived from low-dispersion spectra, and those derived from high-dispersion spectra are flagged. Each measurement was assigned a data quality code according to the signal to noise after removal of the diffuse Lyman alpha background emission. -1 - upper limit 1 - good quality 2 - fair quality 3 - poor quality 4 - contains saturated pixels The final column gives the ratio of the Ly alpha flux to the total bolometric flux of the star, determined as described in the paper. A roundoff was applied to the fluxes listed here to give the fluxes listed in Table 1 of Landsman and Simon.
1070. 3C 295 BRri photometry
ID:
ivo://CDS.VizieR/J/A+A/285/785
Title:
3C 295 BRri photometry
Short Name:
J/A+A/285/785
Date:
21 Oct 2021
Publisher:
CDS
Description:
We observed the cluster Cl 1409+524 (z=0.46) with an imaging Fabry-Perot interferometer. A sequence of Fabry-Perot images (FWHM=1.0-1.3nm) was used to search for redshifted [OII]{lambda}372.7nm- and [OIII]{lambda}500.7nm line emission. We studied 144 galaxies up to a limiting continuum R-band magnitude of 22.5mag within 1 Mpc around the cluster center. Previously known emission-line galaxies in the cluster were confirmed and 17 new members with emission lines were found. Their star formation rate of 1-2M_{sun}_/yr is typical for normal spirals. We have imaged the cluster with broad band B, R and seven intermediate band filters (FWHM=10.0-20.0nm) in order to derive low-resolution spectral energy distributions of cluster galaxies. These were fitted by template spectra to estimate Hubble class and redshifts. Based on this decomposition, we derived a percentage of emission-line galaxies of 40+/-11%.