activity
20242026
most citedCompact white-dwarf binaries in the combined SRG/eROSITA/SDSS eFEDS survey

20 citations · 60 across the 13 of their papers we have counts for

collaborators

13 papers

astro-ph.GA2026

The incidence of eROSITA X-ray AGN in the local Universe: from dwarf to massive galaxies

Z. Igo, A. Merloni, A. Georgakakis +22

Combining deep, wide-area X-ray surveys with multi-wavelength catalogues provides insights into rare, highly-accreting AGN and low-mass galaxies at low redshift, the latter potenti…

astro-ph.SR2026

SRG/eROSITA X-ray selected cataclysmic variable candidates observed in SDSS-V DR20

J. Brink, A. D. Schwope, K. G. Pradeep +35

We report on the spectroscopic observations obtained during SDSS-V DR20 of accreting compact binaries (ACB), specifically the cataclysmic variables (CVs), that were identified as l…

astro-ph.GA2026

The eROSITA X-ray luminosity function of active galactic nuclei

W. Roster, J. Buchner, M. Salvato +23

The X-ray luminosity function (XLF) of active galactic nuclei (AGN) provides an observational probe of the growth of supermassive black holes (SMBHs) across cosmic time. With its l…

astro-ph.GA2026

SDSS-V: Revealing a weak accretion state in X-ray selected red quasars

Paloma Guetzoyan, James Aird, Amy L. Rankine +17

Red quasars (rQSOs) have been recognized as a short-lived, early stage in the evolutionary cycle of Active Galactic Nuclei (AGN), with fundamental differences in their intrinsic pr…

astro-ph.GA2025

SDSS-V Black Hole Mapper: The Index Diagram as a tool to disentangle the influence of the Host Galaxy in Quasar spectra

C. A. Negrete, R. Sandoval-Orozco, H. Ibarra-Medel +32

We revisit the Quasar Main Sequence (QMS) by investigating the impact of the stellar component from the host galaxy (HG) on the emission line spectra of the active galactic nuclei…

astro-ph.GA2025★ 5 cited

X-ray selected broad absorption line quasars in SDSS-V: BALs and non-BALs span the same range of X-ray properties

Pranavi Hiremath, Amy L. Rankine, James Aird +10

Broad absorption line (BAL) quasars are often considered X-ray weak relative to their optical/UV luminosity, whether intrinsically (i.e., the coronal emission is fainter) or due to…

astro-ph.GA2025★ 8 cited

The Nineteenth Data Release of the Sloan Digital Sky Survey

SDSS Collaboration, Gautham Adamane Pallathadka, Mojgan Aghakhanloo +210

Mapping the local and distant Universe is key to our understanding of it. For decades, the Sloan Digital Sky Survey (SDSS) has made a concerted effort to map millions of celestial…

astro-ph.GA2024★ 10 cited

PICZL: Image-based Photometric Redshifts for AGN

William Roster, Mara Salvato, Sven Krippendorf +14

Computing photo-z for AGN is challenging, primarily due to the interplay of relative emissions associated with the SMBH and its host galaxy. SED fitting methods, effective in penci…

astro-ph.GA2024

The SDSS-V Black Hole Mapper Reverberation Mapping Project: A Kinematically Variable Broad-Line Region and Consequences for Masses of Luminous Quasars

Logan B. Fries, Jonathan R. Trump, Keith Horne +27

We present a velocity-resolved reverberation mapping analysis of the hypervariable quasar RM160 (SDSS J141041.25+531849.0) at z = 0.359 with 153 spectroscopic epochs of data repres…

astro-ph.GA2024★ 16 cited

CircleZ: Reliable Photometric redshifts for AGN computed using only photometry from Legacy Survey Imaging for DESI

A. Saxena, M. Salvato, W. Roster +25

(abridged)Photometric redshifts for AGN (galaxies hosting an accreting supermassive black hole in their center) are notoriously challenging and currently better computed via SED fi…

astro-ph.GA2024

Understanding the Broad-line Region of Active Galactic Nuclei with Photoionization. I. the Moderate-Accretion Regime

Qiaoya Wu, Yue Shen, Hengxiao Guo +9

Over three decades of reverberation mapping (RM) studies on local broad-line active galactic nuclei (AGNs) have measured reliable black-hole (BH) masses for AGNs. These RM…

astro-ph.GA2024★ 1 cited

High-quality Extragalactic Legacy-field Monitoring (HELM) with DECam

Ming-Yang Zhuang, Qian Yang, Yue Shen +45

High-quality Extragalactic Legacy-field Monitoring (HELM) is a long-term observing program that photometrically monitors several well-studied extragalactic legacy fields with the D…

astro-ph.SR2024★ 20 cited

Compact white-dwarf binaries in the combined SRG/eROSITA/SDSS eFEDS survey

A. Schwope, J. Kurpas, P. Baecke +22

Aims. Compact white-dwarf binaries are selected from spectra obtained in the early SDSS-V plate program. A dedicated set of SDSS plate observations were carried out in the eFEDS fi…