Synthetic Catalogs of Galaxies with Evolution (gravitational and properties)

Diaz-Gimenez+20
7 galaxy lightcones are presented, built from different semi-analytic galaxy formation models run on top of the Millennium I, Millennium II and MultiDark simulations. Underlying galaxies from Millennium I and Multidark have stellar masses up to 10^9 M sun and from Millennium II up to 10^8. These synthetic catalogues are all-sky surveys (4 pi) with an apparent magnitude limit that mimics the SDSS observational catalogue (r=17.77). These catalogues are all-sky surveys with an apparent magnitude limit that mimics the SDSS observational catalogue (r=17.77).

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VVV Near-Infrared Galaxy Catalogue (VVV NIRGC)

Knowledge about large-scale distribution of galaxies is far from complete in the Zone of Avoidance, mainly due to high interstellar extinction and source confusion at lower galactic latitudes. Previous near infrared (NIR) surveys, such as the Two Micron All Sky Survey (2MASS), have shown great potential for probing large-scale structure at these latitudes. The aim is to map the galaxy distribution across the Southern Galactic plane using the VISTA Variables in the VVV, which is 2 to 4 magnitudes deeper than 2MASS. SExtractor+PSFEx was used to identify extended objects and to measure their sizes, concentration index, magnitudes, and colours. Morphological and colour constraints and visual inspection were used to confirm galaxies. We introduce the VVV NIRGC catalogue of 5,563 visually confirmed galaxies of which 45 were previously known. This is the largest galaxy catalogue within the galactic plane, with 99% of galaxies being new discoveries. It was found that galaxy density distribution closely resembled distribution of low interstellar extinction of existing NIR maps. Moreover, a description is presented of the 185 2MASS extended sources observed in the region, of which 16% of these had no previous description, and now have been classified. To conclude, interstellar extinction and stellar density are the main limitations for the detection of background galaxies in the Zone of Avoidance. The VVV NIRGC is a new dataset providing information for extragalactic studies in the galactic plane.

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SDSS DR12 Galaxy Group Catalogues

Rodriguez & Merchan+20
We present two catalogues of groups identified in the Sloan Digital Sky Survey Data Release 12 (SDSS DR12) and their respective galaxy catalogues. To build these catalogues, groups were defined as gravitationally bounded galaxy systems with at least one bright galaxy (with an absolute magnitude <-19.5 in the r band). In the FOF_mod catalogues, data that corresponds to the FOF identification is presented. In FINAL catalogues, there are galaxies and groups of galaxies resulting from the complete process of combining the FOF method with a halo-based algorithm. Both group catalogues contain group information which was obtained dynamically and by performing a method of abundance matching in brightness. Details about these calculations are presented in the corresponding publication.

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Seyfert Galaxy Catalog

Schmidt+18
There are 28 narrow line Seyfert 1 (NLS1) galaxies covering the spectral range from 4300Å to 5200Å and spectra of 6 NLS1 galaxies in the spectral range 5800Å-6800Å. Data was taken using CASLEO 2.15m telescope and using 600-line/mm grating giving a resolution of 170 km and 190 km FWHM around Hα and Hβ, respectively.Å to 5200Å and spectra of 6 NLS1 galaxies in the spectral range 5800Å-6800Å. Data were taken using the CASLEO 2.15m. telescope and using the 600-line/mm grating giving a resolution of 170km/s and 190km/s FWHM around Hα and Hβ, respectively.

Compact groups in SDSS DR12

Díaz-Giménez+18
A catalogue of compact groups identified on the SDSS DR12 is provided. Compact Groups were identified in redshift space with a modified Hickson-like algorithm. The catalogue comprises 462 compact groups of which 406 clearly fulfil all the compact group requirements: compactness, isolation and velocity concordance of all of their members. The remaining 56 groups need further redshift information of potentially contaminating sources.

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Extended Objects in the VVV Survey (VISTA Variables in the Milky Way)

Baravalle+18 2018AJ….155…46B
We present a catalogue of 574 candidates for extragalactic sources detected in the VVV survey, which are obscured by the presence of our Galaxy. In this paper, we describe the photometric procedure developed to find and characterize extragalactic objects using a combination of SExtractor and PSFEx in two Tiles of the VVV survey. All candidates were visually inspected, increasing the probability that they are confirmed galaxies. In general, these objects are small and more circular, due to the near-infrared sensitivity to select more compact and brighter superficial objects. VISTA Variables in the Vía Láctea (VVV) que están oscurecidas por la presencia de nuestra Galaxia. En este trabajo se describe el procedimiento fotométrico desarrollado para encontrar y caracterizar objetos extragalácticos usando una combinación de SExtractor y PSFEx en dos Tiles del relevamiento VVV. Todos los candidatos fueron inspeccionados visualmente, lo cual aumenta la probabilidad de que sean galaxias confirmadas. En general, estos objetos son pequeños y más circulares, debido a la sensibilidad del infrarrojo cercano para seleccionar objetos más compactos de mayor brillo superficial.

Spectral nuclear properties of NLS1 galaxies

Schmidt+16 2016A&A…596A..95S
We present the optical spectra of 36 of Narrow Line Seyfert 1 galaxies from the Véron & Véron catalogue (Véron – Cetty & Véron 2010) with z < 0.15, brighter than b< 18 and with δ ≤ 10°. Data was taken using CASLEO 2.15 m. telescope, with a 600 lines/mm grating giving a resolution of 170 km FWHM around Hα. The observations are in the range of 5800Å a 6800Å. Spectra were taken at CASLEO 2.15 m. telescope, with a 600 lines/mm grating giving a resolution of 170 km/s FWHM around Hα. The observations are in the range of 5800Å a 6800Å.
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Galaxy groups in the 2M++

Díaz-Gimenez E., Zandivarez A. 2015A&A…578A..61D
Díaz-Gimenez+15 present a sample of 813 galaxy groups identified in the 2M++ catalogue is provided. Groups were identified in redshift space with a Friends-of-Friends algorithm with overdensity contour contrast of 433 (present value of the overdenstity contrast contour for virialized structures in a cosmology Lambda CDM - WMAP1). Groups have virial masses larger than 10¹² Msun and 4 or more members. The 4869 member galaxies have observer frame apparent magnitude in the K_2M++ brighter than 12.5
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2MASX Compact Groups Catalogue

Díaz-Gimenez+12 2012MNRAS.426..296D
A sample of 85 compact groups with spectroscopic information for all of their member galaxies is extracted from the Two-Micron All Sky Survey extended source catalogue (2MASX). The automatic searching algorithm follows the original criteria defined by Hickson. This v2MCG sample of velocity-filtered CGs constitutes the largest sample of CGs (with N≥4) catalogued to date, with both well-defined selection criteria and velocity filtering, and is the first CG sample selected by stellar mass. It is fairly complete up to Kgroup∼9 and radial velocity of ∼6000km/s.
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Galaxy Clusters in SDSS

Coenda+2009. 2009A&A…504..347C
Coenda + 2009 built two subsamples of galaxy clusters with more than 10 members based on two catalogs: ROSAT-SDSS galaxy cluster survey de (Popesso + J/A+A/423/449)  and MaxBCG catalogue of(Koester+ J/ApJ/660/239). The two sub-samples of clusters of galaxies was based on a volume limited sample of galaxies drawn from the spectroscopic DR5 SDSS.
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Galaxy Clusters in SDSS II

Muriel+2014. 2014A&A…564A..85M
Expanded sample of the sample presented in Coenda+2009, based on the NORAS galaxy cluster survey catalog. I. (Bohringer +, 2000). Similarly, a cluster sample with more than 10 members was built, using a volume limited sample of galaxies drawn from the spectroscopic DR7 SDSS.
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