2,726 datasets found

Narrow transient emission lines (flash-ionization features) in early supernova (SN) spectra trace the presence of circumstellar material (CSM) around the massive progenitor...

Polar ring galaxies (PRGs) play an important role in understanding the evolution of galaxies, especially as unique cases of gas accretion and merging process between early and...

In Galaxy And Mass Assembly Data Release 4 (GAMA DR4), we make available our full spectroscopic redshift sample. This includes 248682 galaxy spectra, and, in combination with...

We investigate the relationship between quasars and close companion galaxies using photometry and spectroscopy from the large data set of the SDSS DR16 survey. From the SDSS-QSO...

Due to the fact that they are the farthest sources from the known Universe, the Quasars (QSO) and the BL Lacertae objects (BL) are not only the most important aspects either of...

We present cosmological parameter constraints from a tomographic weak gravitational lensing analysis of ~450deg^2^ of imaging data from the Kilo Degree Survey (KiDS). For a flat...

The gas cycling in the circumgalactic regions of galaxies is known to be multi- phase. The MUSE-ALMA Haloes survey gathers a large multi-wavelength observational sample of...

We present the results of a search for associated 21 cm HI absorption at redshift 0.42 < z < 1.00 in radio-loud galaxies from three Galaxy And Mass Assembly (GAMA) survey...

We present a sample of 706, z < 1.5 active galactic nuclei (AGNs) selected from optical photometric variability in three of the Dark Energy Survey (DES) deep fields (E2, C3,...

The massive galaxy cluster El Gordo (z=0.87) imprints multitudes of gravitationally lensed arcs onto James Webb Space Telescope Near-Infrared Camera (NIRCam) images. Eight bands...

The physical nature of Little Red Dots (LRDs), a population of compact, red galaxies revealed by JWST, remains unclear. Photometric samples are constructed from varying...

A sample of 279 massive red spirals was selected optically by Guo et al. 2020ApJ...897..162G , among which 166 galaxies have been observed by the ALFALFA survey. In this work,...

We perform X-ray spectral analyses to derive the characteristics (e.g., column density, X-ray luminosity) of ~10200 active galactic nuclei (AGNs) in the XMM-Spitzer...

The intrinsic statistical properties and correlations of short gamma-ray bursts (SGRBs) have not been fully determined, due to the limitations of observations. In this paper, we...

The population density of dwarf galaxies in low-density voids is likely determined by the dark matter halo mass function and how galaxy formation proceeds in smaller halos. This...

We present a map of the total intrinsic reddening across ~= 90 deg^2^ of the Large Magellanic Cloud (LMC) derived using optical (ugriz) and near-infrared (IR; YJKs) spectral...

We present a list of tailed radio galaxies using the Tata Institute of Fundamental Research (TIFR) Giant Metrewave Radio Telescope (GMRT) Sky Survey Alternative Data Release 1...

Weak emission-line quasars (WLQs) are a subset of type 1 quasars that exhibit extremely weak Ly{alpha}+NV{lambda}1240 and/or CIV{lambda}1549 emission lines. We investigate the...

Quasars at z>~1 most often have redshifts measured from rest-frame ultraviolet emission lines. One of the most common such lines, CIV{lambda}1549, shows blueshifts up to...

We present a first sample of 117 [OIII]{lambda}{lambda}4960,5008 -selected star-forming galaxies at 5.33<z<6.93 detected in JWST/NIRCam 3.5{mu}m slitless spectroscopy of a...