Search

Start Over Subject catalogs Content Level Research
721. Structural parameters of true edge-on galaxies
ID:
ivo://CDS.VizieR/J/ApJ/787/24
Title:
Structural parameters of true edge-on galaxies
Short Name:
J/ApJ/787/24
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a catalog of true edge-on disk galaxies automatically selected from the Seventh Data Release of the Sloan Digital Sky Survey (SDSS, Cat. II/294). A visual inspection of the g, r, and i images of about 15000 galaxies allowed us to split the initial sample of edge-on galaxy candidates into 4768 (31.8% of the initial sample) genuine edge-on galaxies, 8350 (55.7%) non-edge-on galaxies, and 1865 (12.5%) edge-on galaxies not suitable for simple automatic analysis because these objects either show signs of interaction and warps, or nearby bright stars project on it. We added more candidate galaxies from RFGC, EFIGI, RC3, and Galaxy Zoo catalogs found in the SDSS footprints. Our final sample consists of 5747 genuine edge-on galaxies. We estimate the structural parameters of the stellar disks (the stellar disk thickness, radial scale length, and central surface brightness) in the galaxies by analyzing photometric profiles in each of the g, r, and i images. We also perform simplified three-dimensional modeling of the light distribution in the stellar disks of edge-on galaxies from our sample. Our large sample is intended to be used for studying scaling relations in the stellar disks and bulges and for estimating parameters of the thick disks in different types of galaxies via the image stacking. In this paper, we present the sample selection procedure and general description of the sample.
722. Study of hot stellar systems and galaxies
ID:
ivo://CDS.VizieR/J/MNRAS/414/3699
Title:
Study of hot stellar systems and galaxies
Short Name:
J/MNRAS/414/3699
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a complete picture of dynamically hot stellar systems, ranging from faint galaxies and star clusters of only a few hundred solar masses up to giant elliptical galaxies, in particular including large samples of compact elliptical galaxies (cEs), ultra-compact dwarf galaxies (UCDs), dwarf elliptical galaxies (dEs) of nearby galaxy clusters, and Local Group ultra-faint dwarf spheroidal galaxies (dSphs). For all those stellar systems we show the effective radius-luminosity, effective radius-stellar mass, and effective mass surface density-stellar mass plane.
723. Study of the COSC Korean astronomical catalogue
ID:
ivo://CDS.VizieR/J/MNRAS/454/1086
Title:
Study of the COSC Korean astronomical catalogue
Short Name:
J/MNRAS/454/1086
Date:
21 Oct 2021
Publisher:
CDS
Description:
The study of old star catalogues provides important astrometric data. Most of the researches based on the old star catalogues were manuscript published in Europe and from Arabic/Islam. However, the old star catalogues published in East Asia did not get attention. Therefore, among the East Asian star catalogues we focus on a particular catalogue recorded in a Korean almanac. Its catalogue contains 277 stars that are positioned in a region within 10{deg} of the ecliptic plane. The stars in the catalogue were identified using the modern Hipparcos catalogue (Cat. I/239). We identified 274 among 277 stars, which is a rate of 98.9 percent. The catalogue records the epoch of the stars' positions as AD 1396.0. However, by using all of the identified stars we found that the initial epoch of the catalogue is AD 1363.1+/-3.2. In conclusion, the star catalogue was compiled and edited from various older star catalogues. We assume a correlation with the Almagest by Ptolemaios. This study presents newly analysed results from the historically important astronomical data discovered in East Asia. Therefore, this star catalogue will become important data for comparison with the star catalogues published in Europe and from Arabic/Islam.
724. Subaru/XMM-Newton deep survey (SXDS). II.
ID:
ivo://CDS.VizieR/J/ApJS/176/1
Title:
Subaru/XMM-Newton deep survey (SXDS). II.
Short Name:
J/ApJS/176/1
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present multi-wave band optical imaging data obtained from observations of the Subaru/XMM-Newton Deep Survey (SXDS). The survey field, centered at RA=02:18:00, DE=-05:00:00, has been the focus of a wide range of multiwavelength observing programs spanning from X-ray to radio wavelengths. A large part of the optical imaging observations are carried out with Suprime-Cam on Subaru Telescope at Mauna Kea in the course of Subaru Telescope "Observatory Projects".
725. Sub-mm observations in Extended Chandra DFS
ID:
ivo://CDS.VizieR/J/MNRAS/411/505
Title:
Sub-mm observations in Extended Chandra DFS
Short Name:
J/MNRAS/411/505
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a joint analysis of the overlapping Balloon-borne Large Aperture Submillimetre Telescope (BLAST) 250, 350, 500um, and LABOCA 870um observations [from the LABOCA ECDFS Submm Survey (LESS) survey] of the Extended Chandra Deep Field-South. Out to z~3, the BLAST filters sample near the peak wavelength of thermal far-infrared (FIR) emission from galaxies (rest-frame wavelengths ~60-200um), primarily produced by dust heated through absorption in star-forming clouds. However, identifying counterparts to individual BLAST peaks is very challenging, given the large beams [full-width at half-maximum (FWHM) 36-60 arcsec]. In contrast, the ground-based 870um observations have a significantly smaller 19 arcsec FWHM beam, and are sensitive to higher redshifts (z~1-5, and potentially beyond) due to the more favourable negative K-correction. We use the LESS data, as well as deep Spitzer and VLA imaging, to identify 118 individual sources that produce significant emission in the BLAST bands.
726. Superclusters of Abell and X-ray clusters
ID:
ivo://CDS.VizieR/J/AJ/122/2222
Title:
Superclusters of Abell and X-ray clusters
Short Name:
J/AJ/122/2222
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a new catalog of superclusters of Abell clusters out to a redshift of z_lim_=0.13, a catalog of X-ray clusters located in superclusters determined by Abell clusters, and a list of additional superclusters of X-ray clusters. We investigate the distribution of X-ray selected clusters of galaxies with respect to superclusters determined by Abell clusters of galaxies and show that the distribution of X-ray clusters follows the supercluster-void network determined by Abell clusters. We find that X-ray clusters are more strongly clustered than other clusters: the fraction of X-ray clusters is higher in rich superclusters, and the fraction of isolated X-ray clusters is lower than the fraction of isolated Abell clusters. Poor, non-Abell X-ray clusters follow the supercluster-void network as well: these clusters are embedded in superclusters determined by Abell clusters and populate filaments between them. This catalogue supersedes J/A+AS/123/119
727. Supernovae and their hosts in the SDSS DR8
ID:
ivo://CDS.VizieR/J/A+A/544/A81
Title:
Supernovae and their hosts in the SDSS DR8
Short Name:
J/A+A/544/A81
Date:
21 Oct 2021
Publisher:
CDS
Description:
We report the creation of large and well-defined database that combines extensive new measurements and a literature search of 3876 supernovae (SNe) and their 3679 host galaxies located in the sky area covered by the Sloan Digital Sky Survey (SDSS) Data Release 8 (DR8). This database should be much larger than previous ones, and should contain a homogenous set of global parameters of SN hosts, including morphological classifications and measures of nuclear activity. Identification of the host galaxy sample is 91% complete (with 3536 SNe in 3340 hosts), of which the SDSS names of ~1100 anonymous hosts are listed for the first time. The morphological classification is available for 2104 host galaxies, including 73 (56) hosts in interacting (merging) systems. The total sample of host galaxies collects heliocentric redshifts for 3317 (~90%) galaxies. The g-band magnitudes, D_25_, b/a, and PA are available for 2030 hosts of the morphologically classified sample of galaxies. Nuclear activity measures are provided for 1189 host galaxies. We analyze and discuss many selection effects and biases that can significantly affect any future analysis of our sample. The creation of this large database will help to better understand how the different types of SNe are correlated with the properties of the nuclei and global physical parameters of the host galaxies, and minimize possible selection effects and errors that often arise when data are selected from different sources and catalogues.
728. Suprime-Cam wide-field photometry of Leo A
ID:
ivo://CDS.VizieR/J/ApJS/214/19
Title:
Suprime-Cam wide-field photometry of Leo A
Short Name:
J/ApJS/214/19
Date:
21 Oct 2021
Publisher:
CDS
Description:
We have surveyed a complete extent of Leo A --an apparently isolated gas-rich low-mass dwarf irregular galaxy in the Local Group. The B, V, and I passband CCD images (typical seeing ~0.8") were obtained with the Subaru Telescope equipped with the Suprime-Cam mosaic camera. The wide-field (20'x24') photometry catalog of 38856 objects (V~16-26mag) is presented. This survey is also intended to serve as "a finding chart" for future imaging and spectroscopic observation programs of Leo A.
729. Surface density of dark matter haloes
ID:
ivo://CDS.VizieR/J/MNRAS/445/3512
Title:
Surface density of dark matter haloes
Short Name:
J/MNRAS/445/3512
Date:
21 Oct 2021
Publisher:
CDS
Description:
In this article, we test the conclusion of the universality of the dark matter (DM) halo surface density {mu}_0D_={rho}_0_*r_0. According to our study, the dispersion of values of {mu}_0D_ is twice as high as that found previously by other authors. We conclude that the DM surface density and its Newtonian acceleration are not constant but correlate with the luminosity, morphological type, (B-V)_0_ colour index and content of neutral hydrogen. These DM parameters are higher for more luminous systems of early types with red colour and low gas content. We also found that the correlation of DM parameters with colour index appears to be the manifestation of a stronger relation between DM halo mass and the colour of a galaxy. This finding is in agreement with cosmological simulations. These results leave little room for the recently claimed universality of DM column density. We also found that isolated galaxies in our sample (contained in the Analysis of the interstellar Medium of Isolated GAlaxies (AMIGA) catalogue) do not differ significantly in their value of {mu}_0D_ from the entire sample. Thus, since the AMIGA catalogue gives a sample of galaxies that have not interacted with a significant mass neighbour in the past 3Gyr, the difference between systems with low and high values of {mu}_0D_ is not related to merging events during this period of time.
730. Surface Photometry of ESO-Uppsala Galaxies
ID:
ivo://CDS.VizieR/VII/115
Title:
Surface Photometry of ESO-Uppsala Galaxies
Short Name:
VII/115
Date:
21 Oct 2021
Publisher:
CDS
Description:
The 15467 southern galaxies in this catalog were scanned from 407 blue and 407 red original ESO-Schmidt plates using a PDS microdensitometer. The galaxies were selected from the ESO-Uppsala Catalogue (VII/34). The original selection criterion was a minimum visual angular diameter of 1arcmin. The plates were calibrated using a catalog of photo- electric standards of 1700 standard galaxies transformed to a photometric standard system (Cousins) created by the authors. The result is a catalog acquired in a homogeneous fashion for all types of galaxies in various environments. The extracted parameters include radial surface brightness profiles, magnitudes at several isophotal levels, colors, color gradients, effective radius parameters, structural parameters such as axial ratios, position angles, and profile gradients. The full version of the catalog, made of 190 columns, is available as the file "esolv.fit" in FITS table format. The ascii file "esolv1.dat" contains a subset of these columns which includes those parameters listed in the printed book version. Detailed discussion of the catalog creation is given in the published book version (ISBN 3-923524-31-5)

Limit your search

more »

more »

  • 2872