Zobrazeno 1 - 10
of 1 883
pro vyhledávání: '"A. Schwope"'
Autor:
Li, Pengfei, Liu, Ang, Kluge, Matthias, Comparat, Johan, Tian, Yong, Júlio, Mariana P., Pawlowski, Marcel S., Sanders, Jeremy, Bulbul, Esra, Schwope, Axel, Ghirardini, Vittorio, Zhang, Xiaoyuan, Bahar, Y. Emre, Ramos-Ceja, Miriam E., Balzer, Fabian, Garrel, Christian
The mass of galaxy clusters is a critical quantity for probing cluster cosmology and testing theories of gravity, but its measurement could be biased given assumptions are inevitable. In this paper, we employ and compare two mass proxies for galaxy c
Externí odkaz:
http://arxiv.org/abs/2411.09735
Autor:
Schwope, Axel, Knauff, Kira, Kurpas, Jan, Salvato, Mara, Stelzer, Beate, Stütz, Laurent, Tubín-Arenas, Dusan
(abridged) We present an account of known cataclysmic variables (CVs) that were detected as X-ray sources in eROSITA X-ray surveys and have Gaia DR3 counterparts. We address standard CVs with main sequence donors and white dwarfs accreting via Roche-
Externí odkaz:
http://arxiv.org/abs/2407.20903
Autor:
Joshi, Arti, Catelan, Márcio, Scaringi, Simone, Schwope, Axel, Anupama, G. C., Rawat, Nikita, Sahu, Devendra K., Singh, Mridweeka, Dastidar, Raya, Subramanian, Rama Venkata, Rao, Srinivas M
We present the analysis of optical photometric and spectroscopic observations of two non-magnetic cataclysmic variables, namely CRTS J080846.2+313106 and V416 Dra. CRTS J080846.2+313106 has been found to vary with a period of 4.9116$\pm$0.0003 h, whi
Externí odkaz:
http://arxiv.org/abs/2407.07387
Autor:
Inight, Keith, Gänsicke, Boris T., Schwope, Axel, Anderson, Scott F., Breedt, Elmé, Brownstein, Joel R., Demasi, Sebastian, Friedrich, Susanne, Hermes, J. J., Long, Knox S., Mulvany, Timothy, Pallathadka, Gautham A., Salvato, Mara, Scaringi, Simone, Schreiber, Matthias R., Stringfellow, Guy S., Thorstensen, John R., Tovmassian, Gagik, Zakamska, Nadia L.
SDSS-V is carrying out a dedicated survey for white dwarfs, single and in binaries, and we report the analysis of the spectroscopy of 504 cataclysmic variables (CVs) and CV candidates obtained during the first 34 months of observations of SDSS-V. We
Externí odkaz:
http://arxiv.org/abs/2406.19459
Autor:
Quintin, E., Webb, N. A., Georgantopoulos, I., Gupta, M., Kammoun, E., Michel, L., Schwope, A., Tranin, H., Traulsen, I.
Over recent decades, astronomy has entered the era of massive data and real-time surveys. This is improving the study of transient objects - although they still contain some of the most poorly understood phenomena in astrophysics, as it is inherently
Externí odkaz:
http://arxiv.org/abs/2405.13630
The SRG/eROSITA All-Sky Survey (eRASS) allows for the creation of a complete sample of X-ray dim isolated neutron stars (XDINSs), which will significantly facilitate the study of their population properties, evolution, and connection to other familie
Externí odkaz:
http://arxiv.org/abs/2405.12846
Publikováno v:
A&A 686, A175 (2024)
In this study, we report a discovery from XMM-Newton, which involves the identification and subsequent examination of a newly discovered polar-type cataclysmic variable named XMM J152737.4-205305.9. The discovery was made by matching the XMM-Newton d
Externí odkaz:
http://arxiv.org/abs/2403.14278
Autor:
Leichty, McKenna, Garnavich, Peter, Littlefield, Colin, Schwope, Axel D., Kurpas, Jan, Mason, Paul A., Beuermann, Klaus
We analyze 15 years of eclipse timings of the polar V808 Aur. The rapid ingress/egress of the white dwarf and bright accretion region provide timings as precise as a few tenths of a second for rapid cadence photometric data. We find that between 2015
Externí odkaz:
http://arxiv.org/abs/2402.16959
Autor:
Ghirardini, V., Bulbul, E., Artis, E., Clerc, N., Garrel, C., Grandis, S., Kluge, M., Liu, A., Bahar, Y. E., Balzer, F., Chiu, I., Comparat, J., Gruen, D., Kleinebreil, F., Krippendorf, S., Merloni, A., Nandra, K., Okabe, N., Pacaud, F., Predehl, P., Ramos-Ceja, M. E., Reiprich, T. H., Sanders, J. S., Schrabback, T., Seppi, R., Zelmer, S., Zhang, X., Bornemann, W., Brunner, H., Burwitz, V., Coutinho, D., Dennerl, K., Freyberg, M., Friedrich, S., Gaida, R., Gueguen, A., Haberl, F., Kink, W., Lamer, G., Li, X., Liu, T., Maitra, C., Meidinger, N., Mueller, S., Miyatake, H., Miyazaki, S., Robrade, J., Schwope, A., Stewart, I.
Publikováno v:
A&A 689, A298 (2024)
The cluster mass function traces the growth of linear density perturbations and provides valuable insights into the growth of structures, the nature of dark matter, and the cosmological parameters governing the Universe. The primary science goal of e
Externí odkaz:
http://arxiv.org/abs/2402.08458
Recently, large and homogeneous samples of cataclysmic variables (CVs) identified by the Sloan Digital Sky Survey (SDSS) were published. In these samples, the famous orbital period gap, which is a dearth of systems in the orbital period range ~2-3 hr
Externí odkaz:
http://arxiv.org/abs/2402.02076