activity
20072026
most citedThe SRG/eROSITA all-sky survey: First X-ray catalogues and data release of the western Galactic hemisphere

371 citations · 5.4k across the 119 of their papers we have counts for

collaborators

119 papers

astro-ph.EP2026

WASP-12b Exhibits Persistent In-Transit H Absorption

Shreyas Vissapragada, Fabienne Nail, Morgan MacLeod +6

High-resolution H and He 10830 Å transit spectroscopy can trace the extended upper atmospheres of exoplanets, typically revealing excess in-transit absorption that occurs in the…

astro-ph.HE2026

The SRG/eROSITA All-Sky Survey DR2: Cumulative X-ray catalogues from the first three surveys and multi-wavelength counterparts in the western Galactic hemisphere

M. E. Ramos-Ceja, G. Lamer, M. Salvato +111

The eROSITA telescope array on board the Spektrum-Roentgen-Gamma (SRG) mission began its all-sky survey program in December 2019, scanning the sky at an approximately six-month cad…

astro-ph.EP2026

51 Peg b revisited with VLT/CRIRES+. Constraints on atmospheric thermal structure, chemical composition, and an alternative orbital solution

D. Cont, L. Nortmann, F. Lesjak +18

So far, the atmospheres of non-transiting exoplanets remain poorly explored, and the potential of high-resolution spectroscopy for determining key planetary parameters beyond their…

astro-ph.EP2026

Spinning out of focus: The challenge of rotational line broadening in exoplanet reflection spectroscopy

T. O. Winterhalder, K. Molaverdikhani, D. Cont +17

Detecting light reflected off the dayside of an exoplanet in high-resolution spectroscopic data has proved to be a notoriously difficult endeavour. Despite several attempts, the fa…

astro-ph.SR2026

eROSITA's cool star population explained

J. H. M. M. Schmitt, P. C. Schneider, S. Czesla +2

The rotation-activity connection is the standard paradigm for interpreting chromospheric and coronal activity in late-type stars, namely, stars with outer convection zones. This pa…

astro-ph.EP2026

Mass determination of the ultra-short-period planet LHS 3844 b. First K-band radial velocity measurements with CRIRES+

E. Nagel, J. Köhler, M. Zechmeister +21

We present the first planet mass measurement obtained with CRIRES+ radial velocity (RV) observations using the K-band gas cell. Our target, LHS 3844 b (TOI-136), is a transiting su…