The giant outburst of EXO 2030+375 II: Broadband spectroscopy and evolution

Autor: Ballhausen, R., Thalhammer, P., Pradhan, P., Sokolova-Lapa, E., Stierhof, J., Pottschmidt, K., Wilms, J., Coley, J. B., Kretschmar, P., Fuerst, F., Becker, P., West, B., Malacaria, C., Wolff, M. T., Rothschild, R., Staubert, R.

In 2021, the high-mass X-ray binary EXO 2030+375 underwent a giant X-ray outburst, the first since 2006, that reached a peak flux of ${\sim}600\,\mathrm{mCrab}$ (3-50\,keV). The goal of this work is to study the spectral evolution over the course of

Externí odkaz: http://arxiv.org/abs/2406.13029

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

Autor: Merloni, A., Lamer, G., Liu, T., Ramos-Ceja, M. E., Brunner, H., Bulbul, E., Dennerl, K., Doroshenko, V., Freyberg, M. J., Friedrich, S., Gatuzz, E., Georgakakis, A., Haberl, F., Igo, Z., Kreykenbohm, I., Liu, A., Maitra, C., Malyali, A., Mayer, M. G. F., Nandra, K., Predehl, P., Robrade, J., Salvato, M., Sanders, J. S., Stewart, I., Tubín-Arenas, D., Weber, P., Wilms, J., Arcodia, R., Artis, E., Aschersleben, J., Avakyan, A., Aydar, C., Bahar, Y. E., Balzer, F., Becker, W., Berger, K., Boller, T., Bornemann, W., Brüggen, M., Brusa, M., Buchner, J., Burwitz, V., Camilloni, F., Clerc, N., Comparat, J., Coutinho, D., Czesla, S., Dannhauer, S. M., Dauner, L., Dauser, T., Dietl, J., Dolag, K., Dwelly, T., Egg, K., Ehl, E., Freund, S., Friedrich, P., Gaida, R., Garrel, C., Ghirardini, V., Gokus, A., Grünwald, G., Grandis, S., Grotova, I., Gruen, D., Gueguen, A., Hämmerich, S., Hamaus, N., Hasinger, G., Haubner, K., Homan, D., Chitham, J. Ider, Joseph, W. M., Joyce, A., König, O., Kaltenbrunner, D. M., Khokhriakova, A., Kink, W., Kirsch, C., Kluge, M., Knies, J., Krippendorf, S., Krumpe, M., Kurpas, J., Li, P., Liu, Z., Locatelli, N., Lorenz, M., Müller, S., Magaudda, E., Mannes, C., McCall, H., Meidinger, N., Michailidis, M., Migkas, K., Muñoz-Giraldo, D., Musiimenta, B., Nguyen-Dang, N. T., Ni, Q., Olechowska, A., Ota, N., Pacaud, F., Pasini, T., Perinati, E., Pires, A. M., Pommranz, C., Ponti, G., Poppenhaeger, K., Pühlhofer, G., Rau, A., Reh, M., Reiprich, T. H., Roster, W., Saeedi, S., Santangelo, A., Sasaki, M., Schmitt, J., Schneider, P. C., Schrabback, T., Schuster, N., Schwope, A., Seppi, R., Serim, M. M., Shreeram, S., Sokolova-Lapa, E., Starck, H., Stelzer, B., Stierhof, J., Suleimanov, V., Tenzer, C., Traulsen, I., Trümper, J., Tsuge, K., Urrutia, T., Veronica, A., Waddell, S. G. H., Willer, R., Wolf, J., Yeung, M. C. H., Zainab, A., Zangrandi, F., Zhang, X., Zhang, Y., Zheng, X.

Publikováno v: A&A, vol. 682, A34 (2024)

The eROSITA telescope array aboard the Spektrum Roentgen Gamma (SRG) satellite began surveying the sky in December 2019, with the aim of producing all-sky X-ray source lists and sky maps of an unprecedented depth. Here we present catalogues of both p

Externí odkaz: http://arxiv.org/abs/2401.17274

A new benchmark of soft X-ray transition energies of Ne, CO$_2$, and SF$_6$: paving a pathway towards ppm accuracy

Autor: Stierhof, J., Kühn, S., Winter, M., Micke, P., Steinbrügge, R., Shah, C., Hell, N., Bissinger, M., Hirsch, M., Ballhausen, R., Lang, M., Gräfe, C., Wipf, S., Cumbee, R., Betancourt-Martinez, G. L., Park, S., Niskanen, J., Chung, M., Porter, F. S., Stöhlker, T., Pfeifer, T., Brown, G. V., Bernitt, S., Hansmann, P., Wilms, J., López-Urrutia, J. R. Crespo, Leutenegger, M. A.

A key requirement for the correct interpretation of high-resolution X-ray spectra is that transition energies are known with high accuracy and precision. We investigate the K-shell features of Ne, CO$_2$, and SF$_6$ gases, by measuring their photo io

Externí odkaz: http://arxiv.org/abs/2203.03725

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High-Precision Determination of Oxygen K_{α} Transition Energy Excludes Incongruent Motion of Interstellar Oxygen

Autor: Leutenegger, Maurice, Kuehn, Steffen, Micke, P., Steinbrügge, R., Stierhof, J., Shah, C., Hell, N., Bissinger, Matthias, Hirsch, M., Ballhausen, R., Lang, M., Gräfe, C., Wipf, Severin, Cumbee, R., Betancourt-Martinez, G. L., PARK, SUNGNAM, Yerokhin, V. A., Surzhykov, A., Stolte, W. C., Niskanen, J., Chung, M., Porter, F. S., Stöhlker, T., Pfeifer, T., Wilms, J., Brown, G. V., Crespo López-Urrutia, J. R., Bernitt, S.

Publikováno v: Physical Review Letters
Physical review letters, vol 125, iss 24
Physical review letters 125(24), 243001 (1-7) (2020). doi:10.1103/PhysRevLett.125.243001

Physical review letters 125(24), 243001 (1-7) (2020). doi:10.1103/PhysRevLett.125.243001
We demonstrate a widely applicable technique to absolutely calibrate the energy scale of x-ray spectra with experimentally well-known and accurately calcula

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::112028d21207ccc685bbc5841119a8f8
https://pubmed.ncbi.nlm.nih.gov/33412031