M
Miriam E. Ramos-Ceja
Researcher at Max Planck Society
Publications - 26
Citations - 854
Miriam E. Ramos-Ceja is an academic researcher from Max Planck Society. The author has contributed to research in topics: Galaxy cluster & Galaxy. The author has an hindex of 8, co-authored 26 publications receiving 232 citations. Previous affiliations of Miriam E. Ramos-Ceja include University of Bonn.
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Journal ArticleDOI
The eROSITA X-ray telescope on SRG
Peter Predehl,Robert Andritschke,V. Arefiev,V. Babyshkin,O. Batanov,Werner Becker,Hans Böhringer,A. V. Bogomolov,Th. Boller,Katharina Borm,Katharina Borm,W. Bornemann,Heinrich Bräuninger,Marcus Brüggen,Hermann Brunner,Marcella Brusa,Marcella Brusa,Esra Bulbul,M. Buntov,Vadim Burwitz,Wolfgang Burkert,N. Clerc,E. Churazov,D. Coutinho,Thomas Dauser,Konrad Dennerl,Victor Doroshenko,Josef Eder,Valentin Emberger,Tanja Eraerds,Alexis Finoguenov,Michael Freyberg,Peter Friedrich,S. Friedrich,Maria Fürmetz,Antonis Georgakakis,Marat Gilfanov,S. Granato,Christoph Grossberger,A. Gueguen,P. Gureev,Frank Haberl,O. Hälker,Gisela Hartner,Guenther Hasinger,H. Huber,Long Ji,Andreas von Kienlin,W. Kink,F. Korotkov,Ingo Kreykenbohm,Georg Lamer,I. Lomakin,I. Lapshov,Tie Liu,Chandreyee Maitra,Norbert Meidinger,B. Menz,Andrea Merloni,T. Mernik,Benjamin Mican,Joseph J. Mohr,Sebastian Müller,Kirpal Nandra,V. Nazarov,Florian Pacaud,M. N. Pavlinsky,Emanuele Perinati,Elmar Pfeffermann,Daniel Pietschner,Miriam E. Ramos-Ceja,Arne Rau,Jonas Reiffers,Thomas H. Reiprich,Jan Robrade,Mara Salvato,Jeremy S. Sanders,Andrea Santangelo,Manami Sasaki,H. Scheuerle,Christian Schmid,Jürgen H. M. M. Schmitt,Axel Schwope,A. Shirshakov,Matthias Steinmetz,Ian M. Stewart,Lothar Strüder,Rashid Sunyaev,C. Tenzer,Lars Tiedemann,Joachim Trümper,V. Voron,P. Weber,Joern Wilms,Valeri Yaroshenko +94 more
Abstract: eROSITA (extended ROentgen Survey with an Imaging Telescope Array) is the primary instrument on the Spectrum-Roentgen-Gamma (SRG) mission, which was successfully launched on July 13, 2019, from the Baikonour cosmodrome. After the commissioning of the instrument and a subsequent calibration and performance verification phase, eROSITA started a survey of the entire sky on December 13, 2019. By the end of 2023, eight complete scans of the celestial sphere will have been performed, each lasting six months. At the end of this program, the eROSITA all-sky survey in the soft X-ray band (0.2–2.3 keV) will be about 25 times more sensitive than the ROSAT All-Sky Survey, while in the hard band (2.3–8 keV) it will provide the first ever true imaging survey of the sky. The eROSITA design driving science is the detection of large samples of galaxy clusters up to redshifts z > 1 in order to study the large-scale structure of the universe and test cosmological models including Dark Energy. In addition, eROSITA is expected to yield a sample of a few million AGNs, including obscured objects, revolutionizing our view of the evolution of supermassive black holes. The survey will also provide new insights into a wide range of astrophysical phenomena, including X-ray binaries, active stars, and diffuse emission within the Galaxy. Results from early observations, some of which are presented here, confirm that the performance of the instrument is able to fulfil its scientific promise. With this paper, we aim to give a concise description of the instrument, its performance as measured on ground, its operation in space, and also the first results from in-orbit measurements.
Journal ArticleDOI
The eROSITA X-ray telescope on SRG.
Peter Predehl,Robert Andritschke,V. Arefiev,V. Babyshkin,O. Batanov,Werner Becker,Hans Böhringer,A. V. Bogomolov,Th. Boller,Katharina Borm,Katharina Borm,W. Bornemann,Heinrich Bräuninger,Marcus Brüggen,Hermann Brunner,Marcella Brusa,Marcella Brusa,Esra Bulbul,M. Buntov,Vadim Burwitz,Wolfgang Burkert,N. Clerc,E. Churazov,D. Coutinho,Thomas Dauser,Konrad Dennerl,Victor Doroshenko,Josef Eder,Valentin Emberger,Tanja Eraerds,Alexis Finoguenov,Michael Freyberg,Peter Friedrich,S. Friedrich,Maria Fürmetz,Antonis Georgakakis,Marat Gilfanov,S. Granato,Christoph Grossberger,A. Gueguen,P. Gureev,Frank Haberl,O. Hälker,Gisela Hartner,Guenther Hasinger,H. Huber,Long Ji,Andreas von Kienlin,W. Kink,F. Korotkov,Ingo Kreykenbohm,Georg Lamer,I. Lomakin,I. Lapshov,Tie Liu,Chandreyee Maitra,Norbert Meidinger,B. Menz,Andrea Merloni,T. Mernik,Benjamin Mican,Joseph J. Mohr,Sebastian Müller,Kirpal Nandra,V. Nazarov,Florian Pacaud,M. N. Pavlinsky,Emanuele Perinati,Elmar Pfeffermann,Daniel Pietschner,Miriam E. Ramos-Ceja,Arne Rau,Jonas Reiffers,Thomas H. Reiprich,Jan Robrade,Mara Salvato,Jeremy S. Sanders,Andrea Santangelo,Manami Sasaki,H. Scheuerle,Christian Schmid,Jürgen H. M. M. Schmitt,Axel Schwope,A. Shirshakov,Matthias Steinmetz,Ian M. Stewart,Lothar Strüder,Rashid Sunyaev,C. Tenzer,Lars Tiedemann,Joachim Trümper,V. Voron,P. Weber,Joern Wilms,Valeri Yaroshenko +94 more
TL;DR: eROSITA (extended ROentgen Survey with an Imaging Telescope Array) is the primary instrument on the Spectrum-Roentgen-Gamma (SRG) mission, which was successfully launched on July 13, 2019, from the Baikonour cosmodrome.
Journal ArticleDOI
X-ray Quasi-Periodic Eruptions from two previously quiescent galaxies
R. Arcodia,Andrea Merloni,Kirpal Nandra,Johannes Buchner,Mara Salvato,Dheeraj R. Pasham,Ron Remillard,Johan Comparat,Georg Lamer,Gabriele Ponti,Gabriele Ponti,A. Malyali,J. Wolf,Zaven Arzoumanian,David Bogensberger,David A. H. Buckley,Keith C. Gendreau,Mariusz Gromadzki,Erin Kara,Mirko Krumpe,C. B. Markwardt,Miriam E. Ramos-Ceja,Arne Rau,M. Schramm,Axel Schwope +24 more
TL;DR: Quasi-Periodic Eruptions (QPEs) are extreme high-amplitude bursts of X-ray radiation recurring every few hours and originating near the central supermassive black holes in galactic nuclei as discussed by the authors.
Journal ArticleDOI
Cosmological implications of the anisotropy of ten galaxy cluster scaling relations
K. Migkas,Florian Pacaud,G. Schellenberger,J. Erler,J. Erler,N. T. Nguyen-Dang,Thomas H. Reiprich,Miriam E. Ramos-Ceja,Lorenzo Lovisari,Lorenzo Lovisari +9 more
TL;DR: In this paper, the authors make use of up to 570 clusters with measured properties at X-ray, microwave, and infrared wavelengths to construct ten different cluster scaling relations and test the isotropy of the local Universe; to our knowedge, they present five of these scaling relations for the first time.
Journal ArticleDOI
Cosmological implications of the anisotropy of ten galaxy cluster scaling relations
K. Migkas,Florian Pacaud,G. Schellenberger,J. Erler,J. Erler,N. T. Nguyen-Dang,Thomas H. Reiprich,Miriam E. Ramos-Ceja,Lorenzo Lovisari,Lorenzo Lovisari +9 more
TL;DR: In this paper, the authors make use of up to 570 clusters with measured properties at X-ray, microwave, and infrared wavelengths, to construct 10 different cluster scaling relations (five of them presented for the first time) and test the isotropy of the local Universe.