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Disentangling Stellar Mass and Environmental Effects on eROSITA AGN Activity using multi-wavelength data from GAMA, WISE, GALEX, and DESI Legacy Survey
Navya Saraswat, Shadab Alam, Subhabrata Majumdar
We use a stellar-mass complete sample of galaxies from GAMA/eFEDS to test whether AGN activity depends on environment independent of stellar mass. To isolate this e…
PROVABGS: The Probabilistic Stellar Mass Function of the BGS One-Percent Survey
ChangHoon Hahn, Jessica Nicole Aguilar, Shadab Alam +33
We present the probabilistic stellar mass function (pSMF) of galaxies in the DESI Bright Galaxy Survey (BGS), observed during the One-Percent Survey. The One-Percent Survey was one…
Dependence of galactic bars on the tidal density field in the SDSS
Qi'an Deng, Ying Zu, Shadab Alam +1
As a key driver of the secular evolution of disc galaxies, bar formation is potentially linked to the surrounding tidal field. We systematically investigate the dependence of bars…
The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar and APOGEE-2 Data
Abdurro'uf, Katherine Accetta, Conny Aerts +337
This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the complete…
SDSS-IV MaNGA: 3D spin alignment of spiral and S0 galaxies
Katarina Kraljic, Christopher Duckworth, Rita Tojeiro +5
We investigate the 3D spin alignment of galaxies with respect to the large-scale filaments using the MaNGA survey. The cosmic web is reconstructed from the Sloan Digital Sky Survey…
Quasars at intermediate redshift are not special; but they are often satellites
Shadab Alam, Nicholas P. Ross, Sarah Eftekharzadeh +4
Understanding the links between the activity of supermassive black holes (SMBH) at the centres of galaxies and their host dark matter haloes is a key question in modern astrophysic…