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501. LAMOST-SDSS galaxy pairs
ID:
ivo://CDS.VizieR/J/other/RAA/16.C7
Title:
LAMOST-SDSS galaxy pairs
Short Name:
J/other/RAA/16.C
Date:
21 Oct 2021
Publisher:
CDS
Description:
A small fraction (<10%) of the SDSS main galaxy (MG) sample has not been targeted with spectroscopy due to the effect of fiber collisions. These galaxies have been compiled into the input catalog of the LAMOST ExtraGAlactic Surveys and named the complementary galaxy sample. In this paper, we introduce this project and status of the spectroscopies associated with the complementary galaxies in the first two years of the LAMOST spectral survey (till Sep. of 2014). Moreover, we present a sample of 1102 galaxy pairs identified from the LAMOST complementary galaxies and SDSS MGs, which are defined as two members that have a projected distance smaller than 100h_70_^-1^kpc and a recessional velocity difference smaller than 500km/s. Compared with galaxy pairs that are only selected from SDSS, the LAMOST- SDSS pairs have the advantages of not being biased toward large separations and therefore act as a useful supplement in statistical studies of galaxy interaction and galaxy merging.
502. LAMOST/SP_Ace DR1 catalog
ID:
ivo://CDS.VizieR/J/AJ/155/181
Title:
LAMOST/SP_Ace DR1 catalog
Short Name:
J/AJ/155/181
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a new analysis of the LAMOST DR1 survey spectral database performed with the code SP_Ace, which provides the derived stellar parameters Teff, logg, [Fe/H], and [alpha/H] for 1,097,231 stellar objects. We tested the reliability of our results by comparing them to reference results from high spectral resolution surveys. The expected errors can be summarized as ~120K in Teff, ~0.2 in logg, ~0.15dex in [Fe/H], and ~0.1dex in [alpha/Fe] for spectra with S/N>40, with some differences between dwarf and giant stars. SP_Ace provides error estimations consistent with the discrepancies observed between derived and reference parameters. Some systematic errors are identified and discussed. The resulting catalog is publicly available at the LAMOST and CDS websites.
503. LARGESS survey
ID:
ivo://CDS.VizieR/J/MNRAS/464/1306
Title:
LARGESS survey
Short Name:
J/MNRAS/464/1306
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present the Large Area Radio Galaxy Evolution Spectroscopic Survey (LARGESS), a spectroscopic catalogue of radio sources designed to include the full range of radio AGN populations out to redshift z~0.8. The catalogue covers ~800deg^2^ of sky, and provides optical identifications for 19179 radio sources from the 1.4GHz Faint Images of the Radio Sky at Twenty-cm (FIRST) survey down to an optical magnitude limit of i_mod_<20.5 in Sloan Digital Sky Survey (SDSS) images. Both galaxies and point-like objects are included, and no colour cuts are applied. In collaboration with the WiggleZ and Galaxy And Mass Assembly (GAMA) spectroscopic survey teams, we have obtained new spectra for over 5000 objects in the LARGESS sample. Combining these new spectra with data from earlier surveys provides spectroscopic data for 12329 radio sources in the survey area, of which 10 856 have reliable redshifts. 85 per cent of the LARGESS spectroscopic sample are radio AGN (median redshift z=0.44), and 15 per cent are nearby star-forming galaxies (median z=0.08). Low-excitation radio galaxies (LERGs) comprise the majority (83 per cent) of LARGESS radio AGN at z<0.8, with 12 per cent being high-excitation radio galaxies (HERGs) and 5 per cent radio-loud QSOs. Unlike the more homogeneous LERG and QSO sub-populations, HERGs are a heterogeneous class of objects with relatively blue optical colours and a wide dispersion in mid-infrared colours. This is consistent with a picture in which most HERGs are hosted by galaxies with recent or ongoing star formation as well as a classical accretion disc.
504. Las Campanas/AAT Rich Cluster Survey - I
ID:
ivo://CDS.VizieR/J/MNRAS/327/588
Title:
Las Campanas/AAT Rich Cluster Survey - I
Short Name:
J/MNRAS/327/588
Date:
21 Oct 2021
Publisher:
CDS
Description:
The Las Campanas Observatory and Anglo-Australian Telescope Rich Cluster Survey (LARCS) is a panoramic imaging and spectroscopic survey of an X-ray luminosity-selected sample of 21 clusters of galaxies at 0.97<z<0.16. Charge-coupled device (CCD) imaging was obtained in B and R of typically 2{deg} wide regions centred on the 21 clusters, and the galaxy sample selected from the imaging is being used for an on-going spectroscopic survey of the clusters with the 2dF spectrograph on the Anglo-Australian Telescope.
505. Las Campanas Redshift Survey
ID:
ivo://CDS.VizieR/VII/203
Title:
Las Campanas Redshift Survey
Short Name:
VII/203
Date:
21 Oct 2021
Publisher:
CDS
Description:
The Las Campanas Redshift Survey (LCRS) consists of 26,418 redshifts of galaxies selected from a CCD-based catalog obtained in the R band. The survey covers over 700deg^2 in six strips, each 1.5x80deg, three each in the north and south Galactic caps. The median redshift in the survey is about 30,000km/s. Essential features of the galaxy selection and redshift measurement methods are described and tabulated here. These details are important for subsequent analysis of the LCRS data. Two-dimensional representations of the redshift distributions reveal many repetitions of voids, on the scale of about 5000km/s, sharply bounded by large walls of galaxies as seen in nearby surveys. Statistical investigations of the mean galaxy properties and of clustering on the large scale are reported elsewhere. These include studies of the luminosity function, power spectrum in two and three dimensions, correlation function, pairwise velocity distribution, identification of large-scale structures, and a group catalog.
506. LATMOS DaCHS server TAP service
ID:
ivo://latmos.ipsl/tap
Title:
LATMOS DaCHS server TAP service
Short Name:
LATMOS TAP
Date:
02 May 2022 16:08:35
Publisher:
LATMOS
Description:
The LATMOS DaCHS server'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 spicam schema, columns, groups, key_columns, keys, schemas, tables from the tap_schema schema.
507. LBA Calibrator Survey (LCS1)
ID:
ivo://CDS.VizieR/J/MNRAS/414/2528
Title:
LBA Calibrator Survey (LCS1)
Short Name:
J/MNRAS/414/2528
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a catalogue of accurate positions and correlated flux densities for 410 flat-spectrum, compact extragalactic radio sources previously detected in the AT20G survey. The catalogue spans the declination range [-90{deg}, -40{deg}] and was constructed from four 24-hour VLBI observing sessions with the Australian Long Baseline Array at 8.3GHz. The VLBI detection rate in these experiments is 97%, the median uncertainty of the source positions is 2.6mas, and the median correlated flux density on projected baselines longer than 1000km is 0.14Jy. The goals of this work are 1) to provide a pool of southern sources with positions accurate to a few milliarcsec, which can be used for phase referencing observations, geodetic VLBI and space navigation; 2) to extend the complete flux-limited sample of compact extragalactic sources to the southern hemisphere; and 3) to investigate the parsec-scale properties of high-frequency selected sources from the AT20G survey. As a result of this VLBI campaign, the number of compact radio sources south of declination -40 deg which have measured VLBI correlated flux densities and positions known to milliarcsec accuracy has increased by a factor of 3.5. The catalogue and supporting material is available at http://astrogeo.org/lcs1.
508. LCRS loose groups of galaxies
ID:
ivo://CDS.VizieR/J/ApJS/130/237
Title:
LCRS loose groups of galaxies
Short Name:
J/ApJS/130/237
Date:
21 Oct 2021
Publisher:
CDS
Description:
A "friends-of-friends" percolation algorithm has been used to extract a catalog of {delta}n/n=80 density enhancements (groups) from the six slices of the Las Campanas Redshift Survey (LCRS). The full catalog contains 1495 groups and includes 35% of the LCRS galaxy sample. A clean sample of 394 groups has been derived by culling groups from the full sample that either are too close to a slice edge, have a crossing time greater than a Hubble time, have a corrected velocity dispersion of zero, or contain a 55"-'orphan' (a galaxy with a mock redshift that was excluded from the original LCRS redshift catalog due to its proximity to another galaxy, i.e., within 55").
509. LEDA galaxies with DENIS measurements catalog
ID:
ivo://CDS.VizieR/VII/242
Title:
LEDA galaxies with DENIS measurements catalog
Short Name:
VII/242
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present a catalog of near-infrared properties of LEDA galaxies, using the full resolution images from the DENIS survey. The fluxes are integrated in eight homothetic ellipses defined by their proper axis ratio, position angle and major axis (up to twice the blue diameter at the isophote 25mag/arcsec^2^) extracted from the LEDA database. From the curves of growth in I, J and K_ms_ photometric bands, we estimated different apparent magnitudes and diameters ("total", "Kron" and "isophotal"). Isophotal parameters refer to the limiting surface brightnesses : 22.5(Imag)/arcsec^2^, 21.0(Jmag)/arcsec^2^ and 20.0(K_ms_mag)/arcsec^2^ for the three photometric bands, respectively. The result is a catalog of 753 153 objects (among which there are 508 224 galaxies, 34 449 probable galaxies and 210 480 galaxies to be confirmed). The catalog gives about (the figures vary, depending on the considered magnitude or diameter) : 668 000 I-band magnitudes, 576 000 J-band magnitudes, 357 000 K_ms_-band magnitudes and 452 000 I-band diameters, 299 000 J-band diameters, 114 000 K_ms_-band diameters. The typical standard deviations for I, J and K_ms_ magnitudes are 0.14, 0.15 and 0.25, respectively, for magnitudes limited at I=16, J=15 and K_ms_=14. The contamination by superimposed objects probably remains the major source of problems and could require future improvement. The completeness limits in magnitude are about : 15.5, 14.5 and 13 in I, J and K_ms_, respectively.
510. Lick Northern Proper Motion: NPM1 Ref. Galaxies
ID:
ivo://CDS.VizieR/I/200
Title:
Lick Northern Proper Motion: NPM1 Ref. Galaxies
Short Name:
I/200
Date:
21 Oct 2021
Publisher:
CDS
Description:
The Lick Northern Proper Motion (NPM) program measured proper motions, positions, and photographic photometry for some 149,000 stars (NPM1 Catalog) covering the sky outside the Milky Way north of declination 23 degrees. The NPM1 proper motions were measured with respect to an absolute reference frame defined by some 50,000 faint galaxies (mostly 16 < B < 18 mag). The rms position errors for the NPM1 reference galaxies average 0.2 arcsec. The rms errors for the B magnitudes average 0.25 mag. More complete descriptive information is available in the ASCII or LaTeX documentation written by R.B. Hanson (UCO/Lick Obs.).

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