Astronomy & Astrophysics (A&A)

Free Access

Simultaneous eROSITA and TESS observations of the ultra-active star AB Doradus

J. H. M. M. Schmitt, P. Ioannidis, J. Robrade, P. Predehl, S. Czesla and P. C. Schneider

Published online: 24 August 2021

DOI: https://doi.org/10.1051/0004-6361/202141379

Open Access

The eROSITA Final Equatorial Depth Survey (eFEDS) - X-ray catalogue

H. Brunner, T. Liu, G. Lamer, A. Georgakakis, A. Merloni, M. Brusa, E. Bulbul, K. Dennerl, S. Friedrich, A. Liu et al. (28 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141266

Open Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - Catalog of galaxy clusters and groups

A. Liu, E. Bulbul, V. Ghirardini, T. Liu, M. Klein, N. Clerc, Y. Özsoy, M. E. Ramos-Ceja, F. Pacaud, J. Comparat et al. (24 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141120

Open Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - Identification and characterization of the counterparts to point-like sources

M. Salvato, J. Wolf, T. Dwelly, A. Georgakakis, M. Brusa, A. Merloni, T. Liu, Y. Toba, K. Nandra, G. Lamer et al. (33 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141631

Free Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - Optical confirmation, redshifts, and properties of the cluster and group catalog

M. Klein, M. Oguri, J. J. Mohr, S. Grandis, V. Ghirardini, T. Liu, A. Liu, E. Bulbul, J. Wolf, J. Comparat et al. (12 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141123

Open Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - The AGN catalog and its X-ray spectral properties

Teng Liu, Johannes Buchner, Kirpal Nandra, Andrea Merloni, Tom Dwelly, Jeremy S. Sanders, Mara Salvato, Riccardo Arcodia, Marcella Brusa, Julien Wolf et al. (16 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141643

Free Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - The Stellar Counterparts of eROSITA sources identified by machine learning and Bayesian algorithms

P. C. Schneider, S. Freund, S. Czesla, J. Robrade, M. Salvato and J. H. M. M. Schmitt

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141133

Open Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - X-ray properties and scaling relations of galaxy clusters and groups

Y. Emre Bahar, Esra Bulbul, Nicolas Clerc, Vittorio Ghirardini, Ang Liu, Kirpal Nandra, Florian Pacaud, I-Non Chiu, Johan Comparat, Jacob Ider-Chitham et al. (9 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202142462

Open Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - Variability catalogue and multi-epoch comparison

Th. Boller, J. H. M. M. Schmitt, J. Buchner, M. Freyberg, A. Georgakakis, T. Liu, J. Robrade, A. Merloni, K. Nandra, A. Malyali et al. (3 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141155

Free Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - The first archetypal quasar in the feedback phase discovered by eROSITA

M. Brusa, T. Urrutia, Y. Toba, J. Buchner, J.-Y. Li, T. Liu, M. Perna, M. Salvato, A. Merloni, B. Musiimenta et al. (11 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141092

Open Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - Galaxy clusters and groups in disguise

E. Bulbul, A. Liu, T. Pasini, J. Comparat, D. N. Hoang, M. Klein, V. Ghirardini, M. Salvato, A. Merloni, R. Seppi et al. (14 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202142460

Free Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - X-ray observable-to-mass-and-redshift relations of galaxy clusters and groups with weak-lensing mass calibration from the Hyper Suprime-Cam Subaru Strategic Program survey

I-Non Chiu, Vittorio Ghirardini, Ang Liu, Sebastian Grandis, Esra Bulbul, Y. Emre Bahar, Johan Comparat, Sebastian Bocquet, Nicolas Clerc, Matthias Klein et al. (12 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141755

Open Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - Characterization of morphological properties of galaxy groups and clusters

Vittorio Ghirardini, Y. Emre Bahar, Esra Bulbul, Ang Liu, Nicolas Clerc, Florian Pacaud, Johan Comparat, Teng Liu, Miriam E. Ramos-Ceja, Duy Hoang et al. (9 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141639

Free Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - LOFAR view of brightest cluster galaxies and AGN feedback

T. Pasini, M. Brüggen, D. N. Hoang, V. Ghirardini, E. Bulbul, M. Klein, A. Liu, T. W. Shimwell, M. J. Hardcastle, W. L. Williams et al. (8 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141211

Open Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - A complete census of X-ray properties of Subaru Hyper Suprime-Cam weak lensing shear-selected clusters in the eFEDS footprint

M. E. Ramos-Ceja, M. Oguri, S. Miyazaki, V. Ghirardini, I. Chiu, N. Okabe, A. Liu, T. Schrabback, D. Akino, Y. E. Bahar et al. (16 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202142214

Free Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - A multiwavelength view of WISE mid-infrared galaxies/active galactic nuclei

Yoshiki Toba, Teng Liu, Tanya Urrutia, Mara Salvato, Junyao Li, Yoshihiro Ueda, Marcella Brusa, Naomichi Yutani, Keiichi Wada, Atsushi J. Nishizawa et al. (14 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141547

Free Access

The eROSITA Final Equatorial-Depth Survey (eFEDS) - Presenting the demographics of X-ray emission from normal galaxies

N. Vulic, A. E. Hornschemeier, F. Haberl, A. R. Basu-Zych, E. Kyritsis, A. Zezas, M. Salvato, A. Ptak, A. Bogdan, K. Kovlakas et al. (10 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141641

Free Access

The eROSITA view of the Abell 3391/95 field: Case study from the Magneticum cosmological simulation

Veronica Biffi, Klaus Dolag, Thomas H. Reiprich, Angie Veronica, Miriam E. Ramos-Ceja, Esra Bulbul, Naomi Ota and Vittorio Ghirardini

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141107

Open Access

Systematic evaluation of variability detection methods for eROSITA

Johannes Buchner, Thomas Boller, David Bogensberger, Adam Malyali, Kirpal Nandra, Joern Wilms, Tom Dwelly and Teng Liu

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141099

Free Access

Spatially resolved X-ray spectra of the galactic SNR G18.95-1.1: SRG/eROSITA view

A. M. Bykov, Y. A. Uvarov, E. M. Churazov, M. R. Gilfanov and P. S. Medvedev

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141024

Open Access

SRG/eROSITA discovery of 164 s pulsations from the SMC Be/X-ray binary XMMU J010429.4-723136

S. Carpano, F. Haberl, C. Maitra, M. Freyberg, K. Dennerl, A. Schwope, A. H. Buckley and I. M. Monageng

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141082

Free Access

SRGA J124404.1–632232/SRGU J124403.8–632231: New X-ray pulsar discovered in the all-sky survey by the SRG

V. Doroshenko, R. Staubert, C. Maitra, A. Rau, F. Haberl, A. Santangelo, A. Schwope, J. Wilms, D. A. H. Buckley, A. Semena et al. (5 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141147

Free Access

eROSITA detection of flares from the Be/X-ray binary A0538-66

L. Ducci, S. Mereghetti, A. Santangelo, L. Ji, S. Carpano, S. Covino, V. Doroshenko, F. Haberl, C. Maitra, I. Kreykenbohm and A. Udalski

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202140867

Free Access

Exoplanet X-ray irradiation and evaporation rates with eROSITA

G. Foster, K. Poppenhaeger, N. Ilic and A. Schwope

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141097

Free Access

The corona – chromosphere connection studied with simultaneous eROSITA and TIGRE observations

B. Fuhrmeister, S. Czesla, J. Robrade, J. N. González-Pérez, C. Schneider, M. Mittag and J. H. M. M. Schmitt

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141020

Open Access

eROSITA calibration and performance verification phase: High-mass X-ray binaries in the Magellanic Clouds

F. Haberl, C. Maitra, S. Carpano, X. Dai, V. Doroshenko, K. Dennerl, M. J. Freyberg, M. Sasaki, A. Udalski, K. A. Postnov and N. I. Shakura

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141878

Free Access

eROSITA spectro-imaging analysis of the Abell 3408 galaxy cluster

J. Iljenkarevic, T. H. Reiprich, F. Pacaud, A. Veronica, B. Whelan, J. Aschersleben, K. Migkas, E. Bulbul, J. S. Sanders, M. E. Ramos-Ceja et al. (4 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141411

Open Access

Establishing the X-ray source detection strategy for eROSITA with simulations

Teng Liu, Andrea Merloni, Johan Comparat, Kirpal Nandra, Jeremy Sanders, Georg Lamer, Johannes Buchner, Tom Dwelly, Michael Freyberg, Adam Malyali et al. (18 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141178

Free Access

SRG/ART-XC discovery of SRGA J204318.2+443815: Towards the complete population of faint X-ray pulsars

A. A. Lutovinov, S. S. Tsygankov, I. A. Mereminskiy, S. V. Molkov, A. N. Semena, V. A. Arefiev, I. F. Bikmaev, A. A. Djupvik, M. R. Gilfanov, D. I. Karasev et al. (12 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141630

Free Access

First eROSITA study of nearby M dwarfs and the rotation-activity relation in combination with TESS

E. Magaudda, B. Stelzer, St. Raetz, A. Klutsch, M. Salvato and J. Wolf

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141617

Open Access

SN 1987A: Tracing the flux decline and spectral evolution through a comparison of SRG/eROSITA and XMM-Newton observations

C. Maitra, F. Haberl, M. Sasaki, P. Maggi, K. Dennerl and M. J. Freyberg

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141104

Open Access

A global view of shocked plasma in the supernova remnant Puppis A provided by SRG/eROSITA

Martin G. F. Mayer, Werner Becker, Peter Predehl, Manami Sasaki and Michael Freyberg

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202142517

Free Access

Peculiar X-ray transient SRGA J043520.9+552226/AT2019wey discovered with SRG/ART-XC

I. A. Mereminskiy, A. V. Dodin, A. A. Lutovinov, A. N. Semena, V. A. Arefiev, K. E. Atapin, A. A. Belinski, R. A. Burenin, M. V. Burlak, M. V. Eselevich et al. (17 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141410

Free Access

Losing a minute every two years: SRG X-ray view of the rapidly accelerating X-ray pulsar SXP 1323

I. A. Mereminskiy, A. A. Mushtukov, A. A. Lutovinov, S. S. Tsygankov, A. N. Semena, S. V. Molkov and A. E. Shtykovsky

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141813

Free Access

eROSITA X-ray scan of the η Chamaeleontis cluster - Member study and search for dispersed low-mass stars

J. Robrade, S. Czesla, S. Freund, J. H. M. M. Schmitt and P. C. Schneider

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141124

Free Access

eROSITA study of the globular cluster 47 Tucanae

Sara Saeedi, Teng Liu, Jonathan Knies, Manami Sasaki, Werner Becker, Esra Bulbul, Konrad Dennerl, Michael Freyberg, Roman Laktionov and Andrea Merloni

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141612

Open Access

Studying the merging cluster Abell 3266 with eROSITA

J. S. Sanders, V. Biffi, M. Brüggen, E. Bulbul, K. Dennerl, K. Dolag, T. Erben, M. Freyberg, E. Gatuzz, V. Ghirardini et al. (8 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141501

Free Access

First studies of the diffuse X-ray emission in the Large Magellanic Cloud with eROSITA

Manami Sasaki, Jonathan Knies, Frank Haberl, Chandreyee Maitra, Jürgen Kerp, Andrei M. Bykov, Konrad Dennerl, Miroslav D. Filipović, Michael Freyberg, Bärbel S. Koribalski et al. (2 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141054

Free Access

SRG/ART-XC all-sky X-ray survey: Catalog of sources detected during the first year

M. Pavlinsky, S. Sazonov, R. Burenin, E. Filippova, R. Krivonos, V. Arefiev, M. Buntov, C.-T. Chen, S. Ehlert, I. Lapshov et al. (13 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141770

Free Access

Identification of three cataclysmic variables detected by the ART-XC and eROSITA telescopes on board the SRG during the all-sky X-ray survey

I. Zaznobin, S. Sazonov, R. Burenin, G. Uskov, A. Semena, M. Gilfanov, P. Medvedev, R. Sunyaev and M. Eselevich

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141777

Free Access

X-raying the Sco-Cen OB association: The low-mass stellar population revealed by eROSITA

J. H. M. M. Schmitt, S. Czesla, S. Freund, J. Robrade and P. C. Schneider

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141132

Free Access

Phase-resolved X-ray spectroscopy of PSR B0656+14 with SRG/eROSITA and XMM-Newton

Axel Schwope, Adriana M. Pires, Jan Kurpas, Victor Doroshenko, Valery F. Suleimanov, Michael Freyberg, Werner Becker, Konrad Dennerl, Frank Haberl, Georg Lamer et al. (6 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141105

Free Access

Identification of SRGt 062340.2-265751 as a bright, strongly variable, novalike cataclysmic variable

Axel Schwope, David A. H. Buckley, Adela Kawka, Ole König, Alexander Lutovinov, Chandreyee Maitra, Ilya Mereminskiy, James Miller-Jones, Manuel Pichardo Marcano, Arne Rau et al. (3 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141153

Free Access

Discovery of eRASSt J192932.9–560346: A bright, two-pole accreting, eclipsing polar

Axel Schwope, David A. H. Buckley, Adam Malyali, Stephen Potter, Ole König, Riccardo Arcodia, Mariusz Gromadzki and Arne Rau

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141653

Free Access

A first eROSITA view of ultracool dwarfs

B. Stelzer, A. Klutsch, M. Coffaro, E. Magaudda and M. Salvato

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141232

Free Access

SRG/ART-XC, Swift, NICER, and NuSTAR study of different states of the transient X-ray pulsar MAXI J0903–531

Sergey S. Tsygankov, Sergey V. Molkov, Victor Doroshenko, Alexander A. Mushtukov, Ilya A. Mereminskiy, Andrei N. Semena, Philipp Thalhammer, Jörn Wilms and Alexander A. Lutovinov

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141821

Free Access

The eROSITA view of the Abell 3391/95 field: The Northern Clump - The largest infalling structure in the longest known gas filament observed with eROSITA, XMM-Newton, and Chandra

Angie Veronica, Yuanyuan Su, Veronica Biffi, Thomas H. Reiprich, Florian Pacaud, Paul E. J. Nulsen, Ralph P. Kraft, Jeremy S. Sanders, Akos Bogdan, Melih Kara et al. (11 more)

Published online: 18 May 2022

DOI: https://doi.org/10.1051/0004-6361/202141415

Open Access

X-ray studies of the Abell 3158 galaxy cluster with eROSITA

B. Whelan, A. Veronica, F. Pacaud, T. H. Reiprich, E. Bulbul, M. E. Ramos-Ceja, J. S. Sanders, J. Aschersleben, J. Iljenkarevic, K. Migkas et al. (6 more)

Published online: 02 August 2022

DOI: https://doi.org/10.1051/0004-6361/202141621

Astronomy & Astrophysics

The Early Data Release of eROSITA and Mikhail Pavlinsky ART-XC on the SRG mission